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Rehabilitation of Educational Infrastructure in Bucharest

education

+ Font mai mare | - Font mai mic







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LIST OF CONTENTS

 TOC o '1-3' h z u 1.  GENERAL TECHNICAL DATA.. PAGEREF _Toc162927705 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700300035000000

1.1. Location. PAGEREF _Toc162927706 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700300036000000

1.2. Neighboring areas. PAGEREF _Toc162927707 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700300037000000

1.3. Topography. PAGEREF _Toc162927708 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700300038000000

1.4. Work pegging out. PAGEREF _Toc162927709 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700300039000000

1.5. Climate and specific natural phenomena of the area. PAGEREF _Toc162927710 h 4 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310030000000

1.6. Demolition of interior and network diversions. PAGEREF _Toc162927711 h 5 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310031000000

1.7. Enclosure landscaping. PAGEREF _Toc162927712 h 5 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310032000000

1.8. Brief description of construction site management and facility sources. PAGEREF _Toc162927713 h 5 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310033000000

1.9. Importance category, importance class, fire resistance degree. PAGEREF _Toc162927714 h 5 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310034000000

1.10. Data and indexes that characterize the investment. PAGEREF _Toc162927715 h 5 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310035000000

1.11. Environment protection measures. PAGEREF _Toc162927716 h 6 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310036000000

2.  ARCHITECTURE.. PAGEREF _Toc162927717 h 7 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310037000000

2.1.       CURRENT SITUATION.. PAGEREF _Toc162927718 h 7 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310038000000

2.1.1.   BUILDING A - SCHOOL. PAGEREF _Toc162927719 h 7 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700310039000000

2.1.2.       SPORTS HALL. PAGEREF _Toc162927720 h 11 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320030000000

2.1.3.       ECOLOGICAL WASTE AREA.. PAGEREF _Toc162927721 h 15 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320031000000

2.2.       NEW BUILDINGS.. PAGEREF _Toc162927722 h 15 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320032000000

2.2.1.   BUILDING D – LOCKER ROOM.. PAGEREF _Toc162927723 h 15 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320033000000

2.2.2.   ECOLOGIC WASTE AREA.. PAGEREF _Toc162927724 h 17 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320034000000

2.2.3.   BUILDING GE005–GATE HOUSE.. PAGEREF _Toc162927725 h 19 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320035000000

2.2.4     BUILDING GE007 – WATER TANK.. PAGEREF _Toc162927726 h 20 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320036000000

3.  STRUCTURE.. PAGEREF _Toc162927727 h 21 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320037000000

3.1.       CURRENT SITUATION.. PAGEREF _Toc162927728 h 21 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320038000000

3.1.1.   BUILDING A - SCHOOL. PAGEREF _Toc162927729 h 21 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700320039000000

3.2.       NEW BUILDINGS.. PAGEREF _Toc162927730 h 22 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330030000000

3.2.1.   BUILDING D – LOCKER ROOM.. PAGEREF _Toc162927731 h 22 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330031000000

3.2.2.   BUILDING – ECOLOGIC WASTE AREA.. PAGEREF _Toc162927732 h 23 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330032000000

3.2.3. BUILDING GE005 – GATE HOUSE.. PAGEREF _Toc162927733 h 23 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330033000000

3.2.3. BUILDING GE007- WATER TANK.. PAGEREF _Toc162927734 h 24 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330034000000

4.  Sanitary installations.. PAGEREF _Toc162927735 h 26 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330035000000

4.1.       EXISTING BUILDINGS.. PAGEREF _Toc162927736 h 26 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330036000000

4.2.       NEW BUILDINGS.. PAGEREF _Toc162927737 h 27 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330037000000

4.2.1.       BUILDING B – LOCKER ROOM.. PAGEREF _Toc162927738 h 27 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330038000000

4.2.2.       BUILDING GE006 – ECOLOGICAL WASTE AREA.. PAGEREF _Toc162927739 h 28 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700330039000000

4.2.2.       BUILDING GE007 – WATER TANK.. PAGEREF _Toc162927740 h 28 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340030000000

5.  HEATING AND VENTILATION INSTALLATIONS.. PAGEREF _Toc162927741 h 30 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340031000000

5.1.       EXISTING BUILDINGS.. PAGEREF _Toc162927742 h 30 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340032000000

5.2.       NEW BUILDINGS.. PAGEREF _Toc162927743 h 32 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340033000000

6.  ELECTRICAL INSTALLATIONS.. PAGEREF _Toc162927744 h 33 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340034000000

6.1.       EXISTING SITUATIONS.. PAGEREF _Toc162927745 h 33 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340035000000

6.1.1.       CORP A – SCOALA.. PAGEREF _Toc162927746 h 33 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340036000000

6.1.2.       BUILDING B – SPORTS HALL. PAGEREF _Toc162927747 h 35 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340037000000

6.1.3.       BUILDING B – LINK BUILDING.. PAGEREF _Toc162927748 h 37 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340038000000

6.2        NEW BUILDINGS.. PAGEREF _Toc162927749 h 37 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700340039000000

6.2.1.       BUILDING B – LOCKER ROOM.. PAGEREF _Toc162927750 h 37 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350030000000

6.2.2.       BULDING GE005 – GATE HOUSE.. PAGEREF _Toc162927751 h 37 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350031000000

6.2.3.       BUILDING GE006 – ECOLOGICAL WASTE AREA.. PAGEREF _Toc162927752 h 38 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350032000000

6.2.4.       BUILDING GE007 – WATER TANK.. PAGEREF _Toc162927753 h 38 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350033000000

7.  INTERIOR UTILITIES.. PAGEREF _Toc162927754 h 39 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350034000000

7.1        GAS NETWORK.. PAGEREF _Toc162927755 h 39 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350035000000

7.2.       WATER SUPPLY-SEWERAGE NETWORK.. PAGEREF _Toc162927756 h 39 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350036000000

7.2.1.   DRINKING WATER.. PAGEREF _Toc162927757 h 39 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350037000000

7.2.2.   USED WATERS AND RAIN WATER SEWERAGE.. PAGEREF _Toc162927758 h 40 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F0054006F0063003100360032003900320037003700350038000000



1.      GENERAL TECHNICAL DATA

1.1. Location.

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest. Data regarding the frame in the urbanism plan or land arrangement: UTR, L3a area, sub-area of the accommodations with GF+3 – GF+4 stories, located outside the protected area.

Besides the rehabilitation and modernization of the existing building, building A –School with B+GF+3 floors, a new building was proposed: building D – Locker room with GF, located on the south side, building GE006 – Ecological waste area with GF, located in the south-west side of the precinct, parallel with the sports hall and the water tank located in the west side of the precinct, close to the secondary access of the Building A.

1.2. Neighboring areas.

The school has the following neighbors:

North: Kindergarten no. 62

East: collective accommodations P+4

South: Kindergarten no. 243

West: Almasul Mic Street

1.3. Topography.

The building is on a land of almost 6122.10 sq.m., almost rectangular between Almasul Mare and Almasul Mic Streets. Building A – school has rectangular shape with sides of 40.55 m and 15.60 m and built area of 567.00 sq.m, building B –Sports hall has rectangular shape with sides of 33.30 m and 15.60 m and a built area of 513.90 sq.m and building C link building between the school and sports hall with a built area of 27.60 sq.m. The precinct is surrounded with fence made of panels with vertical bars made of iron mounted at the upper side and at the bottom side flat iron welded on metallic piles with height of 1.70 m fasten on concrete socle.

1.4. Work pegging out.

Pegging out of new construction: building D – Locker room, ecological waste area, water tank, alleys, green areas, precinct surroundings and accesses will be made based on the land surveys, mapping plans, technical project and on-site measurements.

1.5. Climate and specific natural phenomena of the area.

The climate and specific natural phenomena in the Bucharest area are part of the temperate continental climate with slightly higher temperatures than in the areas around the capital, due to the urban congestion. The construction is in wind zone II and climate zone II, exterior temperature: -15 degrees.

1.6. Demolition of interior and network diversions.

Theer was proposed the demolition of the ecological waste area.

1.7. Enclosure landscaping.

The following enclosure landscape works have been proposed:

-          re-building of the concrete pedestrian and car alleys;

-          replacement of the existing footpaths with new footpaths of concrete cast over sand and ballast layers, with every-meter bituminous joints;

-          construction of access ramp to the buildings for physically disabled persons and growing grass on greens;

-          green areas;

-          setting up playground and meeting area;

-          the precinct shall be surrounded with metallic fence with concrete socle, according to the technical documentation identical to the existing one

The land will be systematized in such a way as to clear pluvial water away from the building.

1.8. Brief description of construction site management and facility sources.

Construction site organization will be conducted based on an execution organization project (EOP) drawn up with the entrepreneur in charge of the execution of works. The construction site organization project will ensure optimum placement of the functions necessary for the execution (material storehouses, equipment, offices, dressing rooms, sanitary blocks, etc.) The organization of the works in stages will be performed such as to allow the educational process to be carried out normally.

1.9. Importance category, importance class, fire resistance degree.

Construction importance category: C – according to Romanian Government Decision 766.

Construction importance class: II – according to Normative P100.

Fire resistance degree: II – according to Normative P118.

1.10. Data and indexes that characterize the investment.

Land surface:            St = 6122.10 sq.m.              

Built area:                  Sc = 1278.3 sq.m.               

Layout built area:      Scd = 3146.3 sq.m.             

Occupancy of the land:       P.O.T. = 20.88%.

Usage coefficient of the land: C.U.T. = 0.51

1.11. Environment protection measures

The works in the present project are not a source of water pollution, air pollution, soil and sub-soil pollution and do not generate noxious substances.

After completion of works, all remaining materials will be evacuated.

The land and work platforms occupied by the constructor will be cleared.

The Contractors and the Beneficiary will observe:

q                 * Law no. 137/30.12.1995                  Environment protection law republished in 2003;

q                 * Order no. 860 from 2002                  Order of the Ministry of Water, Woods and Environment Protection for approval of 'Evaluation procedure of impact upon environment and issue of environment agreement” (published in the Official Gazette on 11th of April 1996)

q                 * Law no. 107/08.10.1996                  Law of waters (published in the Official Gazette no. 224)

q                 * Order no. 720 from 11.1996            Order of the Ministry of Water, Woods and Environment Protection, regarding the necessity of completion the technical brief in order to request the approval and water administration authorization.

2.      ARCHITECTURE

2.1.      CURRENT SITUATION

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest.

Besides the rehabilitation and modernization of the existing building, building A –School with B+GF+3 floors, a new building was proposed: building D – Locker room, building GE006 – Ecological waste area with GF and the water tank.

2.1.1.     BUILDING A - SCHOOL

a.                Functional description.

The building was built in 1980. Currently in the school there are 880 pupils. The school has: 16 classrooms, 3 laboratories (chemistry, biology and physics-mathematics), 4 cabinets, 1 library, 1 medical cabinet, 1 principle’s office, 1 secretariat, 1 teacher’s room, 1 archive, 1 lapte+corn room, 2 sanitary blocks, 8 sanitary blocks for pupils divided on, 2 stairs, halls, lobbies, 1 storage.

The building has 5 floors: partially technical basement, ground floor, 1st floor, 2nd floor, 3rd floor.  The sizes in plan and elevation are the following:

-          length L = 40.55m,

-          width w=15.60m  

-          height h=14.68 

Level +0.00 is at 45 cm higher than the level of the footpath.

The main access in the school is at the GF located on the NV side and the secondary accesses on SV, respective SE.

Basement: partially technical, the connection with GF is ensured by a trap located in the sanitary block for males, on GF

Ground floor: hall, 1 sanitary block for teachers + 2 sanitary blocks for pupils divided on genders, stair cases (2), chemistry laboratory+annex, librray, medical cabinet, principl’e office, secretariat, classrooms (2), storages (2), main access hall, secondary access hall, accesses (3), electric board room, 2 hydrants.

The headroom of the GF is of 3.10m.

1st floor: physics laboratory+annex, teacher’s room+annex, corn + lapte room, doorkeeper room, 1 sanitary block for teachers + 2 sanitary blocks for pupils divided on genders, classrooms (3), stair cases (2), hall, 2 hydrants.

The headroom of the 1st floor is of 3.10m.

2nd floor: biology laboratory, 5 classrooms, 2 sanitary blocks for pupils divided on genders, 2 stair cases, hall, 2 hydrants.

The headroom of the 2nd floor is of 3.10 m.

3rd floor: 5 classrooms, 2 sanitary blocks for pupils divided on genders, 2 stair cases, hall, 2 hydrants.

The headroom of the 3rd floor is of 3.10 m.

For BUILDING A – SCHOOL, the following rehabilitation and new works were provided:

·   arrangement of access ramps for physically disabled pupils

All floors:

·   Re-partitioning of the sanitary blocks for pupils: for wc cabins there shall be used PVC walls with doors made of the same material

Ground floor:

·   Arrangement of a sanitary block for physically disabled pupils in the annex of the chemistry laboratory

·   The Europeane Integration cabinet shall be transformed in psych-pedagogical cabinet, the library in secretariat

1st floor:

·   Re-partitioning of the biology laboratory, the psycho-pedagogic shall be transformed in annex for biology cabinet, annex of the teachre’s room in archive, the eco area center and informatics cabinet in IT cabinet

2nd floor:

·   Re-partitioning of physics laboratory and annex

3rd floor

·   Function changing of the archive in eco area center  

b.               Construction system and construction materials to be used.

The building has U shape and has three sections separated by anti-seismic joints.

The resistance structure is dual type made of monolith reinforced concrete semi-frames and ceilings. The foundations are continuous specific to the buildings with structural walls made of reinforced concrete. The mansory is made of ACC.

c.                Operational safety.

A check has been performed, to see whether the works meet the normative regarding the operational safety of civil building design, indicator CE 1-95 regarding: safety of pedestrian traffic, installation safety, maintenance work safety, anti-intrusion and anti-theft safety.

The window parapet, with heights of 0.90-1.35m meets the safety requirements.

-          The balustrades shall be mounted at 90cm high with of the stair are made of pillars, arranged at a clear width of maximum 10 cm.

-          Anti-intrusion and anti-theft safety is ensured by using insulated glass, secured with anti-theft foil, for the access doors from the outside, as well as for ground floor and 1st floor windows;

-          The stair will be built such as to offer free passing with no injury risk.

-          The doors of the corridors will have automatic door closer mechanisms.

-          The traffic and emergency exits will be naturally lighted and ventilated.

The project has considered the compliance with safety norms during the performance of maintenance works, which involves ensuring users’ safety during the cleaning or repair works for parts of the building (windows, stairs, walls, roofs, illuminators, etc), during their exploitation period.

The project observes the normative NP 051/2001 regarding the need to adapt the construction to the necessities of physically disabled people. The access doors to the main spaces are 0.90m to 1.00m wide. Emergency exits are naturally lighted and ventilated.

The finishing works of the stairs, ramps and access board stairs are made such as to avoid slipping, even on humid weather. The stair steps are made as to not allow foot tip tripping. No isolated steps have been included, in order to avoid tripping.

d.               Fire safety

Within the building there are 2 emergency exits located on each level of the building. The doors of the emergency exits open in the opening direction. The smoke will be naturally exhausted, through the windows, no automatic evacuation systems being necessary. The conditions to allow access to fire special trucks are ensured on three sides of the building. An interior network of hydrants has been set up. The construction will be equipped with intervention equipment in case of fire, according to the norm and to the thermal load density.

The doors of the verticle emergency exits are fire resistant for 15min, and the walls - 150min.

It is forbidden to use or store combustible liquids or gases in places other than the ones especially designed for this purpose, in limited quantities and without complying with the prevention and extinction norms P118-99; smoking is not allowed. All data regarding these exigencies are presented in detail in the “Fire Safety Scenario” section.

e.                Hygiene, human health, environmental recovery and protection.

All spaces are naturally ventilated through windows with turn and tilt windows.

The hygiene of drinking water and the evacuation of residual water have been ensured according to the normative.

The construction observes air, gas and vapor tightness norms. Room lighting is natural. Regarding the accepted concentration of noxious substances from construction materials (carbon dioxide, carbon monoxide, formaldehyde and radon from construction materials), the construction is compliant with norms. In classrooms, a minimum of 5 m3 / person is ensured.

Room ventilation was ensured in such manner, that at least three changes of air per hour take place in the rooms where the educational process develops.

Natural ventilation will be ensured through the windows in the following conditions:

-          Existence of accepted concentration of noxious substances (gas, vapors, dust) of the air at the exterior;

-          classroom occupancy according to stipulations in the project;

-          aeration of classrooms during break time.

Mechanical ventilation is ensured in the chemistry and biology laboratories, which are equipped with fume cabinets. Aspiration pipes will be made of corrosion-resistant materials and will be heat insulated.

The hygiene of drinking water and the evacuation of used water have been ensured according to the normative. The joinery complies with water and wind tightness norms. The solid waste will be evacuated into an ecological waste area, placed within the precinct.

f.                 Heat insulation, water proofing and energy saving.

The building shall be thermal-insulated as per norm in force and the joinery shall meet the requirements for thermal-insulation.

The existing exterior joinery shall be replaced with PVC joinery with thermopane glass.

The concrete elements shall be thermal-insulated to interrupt the thermal bridges.

In order to ensure the necessary thermal comfort in the school and to diminish heat loss (and to comply with the new regulations that impose minimum heat loss) the project proposal observes:

-          a new footpath for the protection of the foundations;

-          rehabilitation of the exterior plastering;

-          heat-insulating the terrace by removing the all layers.

-          Redoing of the waterproofing in the sanitary groups with thermal proofing membrane;

-          All the sanitary blocks shall have slide-proof floor tiles, and wall tiles up to 2.10m.

g.                Lighting and ventilation of rooms.

All rooms are naturally lightened and ventilated, according to norms. Rooms will be naturally lightened, through windows. Window surface corresponds to the ratio between the glazed area and the room area. Room ventilation will be natural, through turn and tilt windows.

h.               Interior finishing.

The terrazzo floors shall be 50% rehabilitated:

Ceramic floor tiles (anti-slip and intense circulation) in biology and chemistry laboratories including their annexes, sanitary blocks, buffet, medical and stomatologic cabinets

Ceramic wall tiels up to h = 2.10 m in sanitary blocks, buffet, medical and stomatologic cabinets, and up to h=1.50 in chemistry and biology laboratories, including annexis.

Washable paint shall be used for walls and ceiling. PAL sills shall be used for windows. The handrail and stairs shall be rehabilitated and the balustrade shall be completed with banisters where missing and painted with black acrylic paint.

i.                  Exterior finishing.

For the walls, the project proposes new plastering, applied on the expanded polystyrene; waterproofed plastering on extruded polystyrene for socles; redoing of the sheet flashings of the parapets and attics; painting of the metallic elements (balustrade, handrail); cast terrazzo for acces platforms and ramps in building.

j.                 Interior and exterior joinery.

The interior joinery proposed:

·   Metallic joinery with securit glass on stir cases and evacuation ways, fire resistance joinery with self-closing systems in case of fire.

·   MDF joinery in class rooms and labs with 180 degrees opening. The wooden joinery will be lined and will have frames

·   Exterior PVC joinery.

Exterior joinery will be made of aluminium with anti-theft thermopane glass for GF and 1st floor.

k.               Data and indexes that characterize the designed investment.

Built area:                                          Sc = 570.00 sq.m.

Layout built area:                             Scd = 2239.50 sq.m.

Volume:                                             V = 8176.14m3.

Height regime:                                  B+GF+3F.

Maximum construction height: H14.42m from the footpath.

2.1.2.     SPORTS HALL

a.      Functional description.

The building has partially technical basement, ground floor and partially 1 floor.

The building has the following sizes in plan and elevation:

·   width =15.60m

·   length =33.30m.

·   height to eaves from the level of the footpath H=8.23m

The access into the sports hall is ensured by a hall located in building C-link building and from exterior by a access platform with stairs at elevation -0.05. 

Level ±0.00 is at minimum +0.45m from the level of the footpath, level that may be variable following that the adjustment to the land to be done on site.

In the basement: there is the technical room with L shape on north and south sides with a headroom of ~1.60m. the connection with the GF is ensured by a hatch located in building C.

On ground floor: there are located the sports hall, distribution hall, locker room for teacher, storage, corn+lapte room. The headroom of the sports hall is of 6.50 m and in the distribution hall of 2.77m.

On the floor: theer are the stair case, distribution hall, medical cabinet, room for staff. The floor is at level +2.92 from the level of the ground floor and has headroom of 4.23 m. The access to the floor is ensured by a stair. The sports hall is linked to the building C.

Roof covering: non-traffic terrace.

BUILDING C – LINK BUILDING: 

Basement: technicall corridor

Ground floor: distribution hall, 1 access fro the schoolyard

Roof covering: non-traffic terrace

Existing situation

Sports hall has the following major inconveniences:

            - no locker room equipped with showers and sanitary blocks                          

            - no facilities for the physically disabled pupils.

Finishing (their conditions):

BUILDING B – SPORTS HALL:  

·         Interior finishing for floors:

o       Paint cement (in very bad condition): sports hall

o       Cast terrazzo (very damaged in some areas): halls, stair cases, corn+lapte room, locker room for teachers, storage, room for tesa staff.

o       Ceramic wall tiles (recently replaced): medical cabinet.

·         Interior finishing for walls and ceilings:

o       Ceramic wall tiles (recently replaced): medical cabinet h=2.10m, corn+lapte room (partially).

o       Oil paint: sports hall h=2.12m, corn+lapte room.

o       loam / oil paint

·         Interior joinery:

o       metallic doors, with threasholds (medical cabinet);

o       the other rooms have old wooden doors.  

·         Exterior joinery:

o       PVC windows, recently replaced (medical cabinet).

o       Old damaged metallic windows with protection meshes at sports hall and of wooden at the other rooms.

The exterior painting is recent.

BUILDING C – LINK BUILDING:

·         Interior finishes for floors:

o       Terrazzo slabs / cast terrazzo

·         Interior finishing for walls and ceilings:

o       Oil paint

o       Washable paint

·         Exterior joinery:

o       PVC access doors and windows, recently replaced.

The exterior painting is recent.

The following rehabilitation works are proposed for the Sports hall.

Changing of functionality and re-partitioning

Ground floor: corn+lapte room shall be transformed in administrative office, the locker room for teacher and the storage shall be re-partitioned resulting a connection hall.

1st floor: the room for tesa staff shall be transformed in stomatologic cabinet.

b.     Construction system and construction materials to be used.

The constructive system is made of isolated foundations, frames, slabs made of reinforced concrete and the exterior closing are made of ACC mansory of 30cm thickness.  

c.      Operational safety.

A check has been performed, to see whether the works meet the normative regarding the operational safety of civil building design, indicator CE 1-95 regarding: safety of pedestrian traffic, installation safety, maintenance work safety, anti-intrusion and anti-theft safety.

The window parapet, with heights of 0.90-1.35m meets the safety requirements.

-          The balustrades shall be mounted at 90cm high with of the stair are made of pillars, arranged at a clear width of maximum 10 cm.

-          Anti-intrusion and anti-theft safety is ensured by using insulated glass, secured with anti-theft foil, for the access doors from the outside, as well as for ground floor and 1st floor windows;

-          The stair will be built such as to offer free passing with no injury risk.

-          The doors of the corridors will have automatic door closer mechanisms.

-          The traffic and emergency exits will be naturally lighted and ventilated.

The project has considered the compliance with safety norms during the performance of maintenance works, which involves ensuring users’ safety during the cleaning or repair works for parts of the building (windows, stairs, walls, roofs, illuminators, etc), during their exploitation period.

The project observes the normative NP 051/2001 regarding the need to adapt the construction to the necessities of physically disabled people. The access doors to the main spaces are 0.90m to 1.00m wide. Emergency exits are naturally lighted and ventilated.

The finishing works of the stairs, ramps and access board stairs are made such as to avoid slipping, even on humid weather. The stair steps are made as to not allow foot tip tripping. No isolated steps have been included, in order to avoid tripping.

d.     Fire safety

All the metallic structural elements shall be painted and covered with gypsum boards to ensure the resistance to fire of the building in order to be included in II degree fire resistance.

e.      Hygiene, human health, environmental recovery and protection.

All spaces are naturally ventilated through windows with turn and tilt windows.

The used material are technically approved and do not affect the health of the pupils or environment. The number of the cans with a capacity of 110l meet the STAS 8127.

f.        Heat insulation, water proofing and energy saving.

Vertical and horizontal waterproofing of the building was provided using thermal-sealing membrane for socle. For the floor of the GF there shall be used extruded polystyrene of 3cm and PVC foil. The roof covering shall be made of thermal-insulated panels, sandwich type of 10 cm on metallic structure. The rain water shall be collected and drained using gutters and down pipes and gullies for non-traffic terrace. The eaves shall have a width of 50cm.

g.     Lighting and ventilation of rooms.

All rooms are naturally lightened and ventilated through turn and tilt windows and ventilation grills.

h.     Interior finishing.

Anti-slip ceramic floor tiles for intense circulation shall be used in sanitary blocks and horizontal halls. In locker room PVC floor for intense circulation and in the sports hall special PVC floor for sports fields. The paint shall be white and washable for walls and the ceiling shall be covered with gypsum boards on metallic structure.

The interior partitioning shall be made of gypsum boards panels on metallic structure and the beams shall be covered with suspended ceiling of gypsum boards.

i.        Exterior finishing.

Anti-slip ceramic floor tiles shall be used for access platforms and exterior stairs. The constructive system is metallic and the closing are made of thermal-insulated panels, sandwich type of 10 cm with the upper side of pre-painted corrugated sheet and wall panels with aluminium structure.

j.        Interior and exterior joinery.

·   The access doors are made of aluminium with thermopane glass. The exterior doors shall have thermoapane galss and anti-efraction foil. The interior doors shall be made of MDF and the door of the heating plant shall be metallic.

k.      Data and indexes that characterize the designed investment.

Built area:                                          Sc = 513.90 sq.m.



Layout built area:                             Scd = 565.30 sq.m.

Volume:                                             V = 3941.61m3.

Height regime:                                  B+GF+1F.

Maximum construction height: H 8.17 m from footpath.

2.1.3.     ECOLOGICAL WASTE AREA

Existing situation

The ecological waste area does not meet the hygiene norms, has no platform for can washing, water connection and gully.

The building shall be demolished.

 

2.2.       NEW BUILDINGS

2.2.1.     BUILDING D – LOCKER ROOM

a.      Functional description

The building has ground floor and floor

Sizes in plan and elevetions:

·   width w=8.38m.

·   length L=17.18M

·   height H=7.00m.

On ground floor there are: locker room for teachers divided on genders (with sanitary block equipped with shower cabin), office for teachers, storage, sanitary block and locker room for physically disabled pupils, mechanical workshop with sanitary block, halls. The acess is ensured by 2 doors of 150 x 2.10m.

On the 1st floor there are locker rooms for pupils with sanitary bloks divided on genders.

b.     Construction system and construction materials to be used.

The constructive system is metallic and the closing are made of thermal-insulated panels, sandwich type of 10 cm with the upper side of pre-painted corrugated sheet and wall panels with aluminium structure. The locker room and the annex shall have inverse terrace with concrete parapets. The concrete socle shall be covered with extruded polystyrene of 3 cm thickness and plastered with reinforced impermeable plastering.  

c.      Operational safety.

A check has been performed, to see whether the works meet the normative regarding the operational safety of civil building design, indicator CE 1-95 regarding: safety of pedestrian traffic, installation safety, maintenance work safety, anti-intrusion and anti-theft safety.

d.     Fire safety

All the metallic structural elements shall be painted and covered with gypsum boards to ensure the resistance to fire of the building in order to be included in II degree fire resistance.

e.      Hygiene, human health, environmental recovery and protection.

All spaces are naturally ventilated through windows with turn and tilt windows.

The used material are technically approved and do not affect the health of the pupils or environment. The number of the cans with a capacity of 110l meet the STAS 8127.

f.        Heat insulation, water proofing and energy saving.

Vertical and horizontal waterproofing of the building was provided using thermal-sealing membrane for socle. For the floor of the GF there shall be used extruded polystyrene of 3cm and PVC foil. The rain water shall be collected and drained using gutters and down pipes and gullies for non-traffic terrace.

g.     Lighting and ventilation of rooms.

All rooms are naturally lightened and ventilated through turn and tilt windows and ventilation grills.

h.     Interior finishing.

Anti-slip ceramic floor tiles for intense circulation shall be used in sanitary blocks and horizontal halls. In locker room PVC floor for intense circulation and in the sports hall special PVC floor for sports fields. The paint shall be white and washable for walls and the ceiling shall be covered with gypsum boards on metallic structure.

The interior partitioning shall be made of gypsum boards panels on metallic structure and the beams shall be covered with suspended ceiling of gypsum boards. The interior walls of the sports hall shall be made of composite materials, resistant to mechanical shocks of minimum 4cm thickness.

i.        Exterior finishing.

Anti-slip ceramic floor tiles shall be used for access platforms and exterior stairs. The constructive system is metallic and the closing are made of thermal-insulated panels, sandwich type of 10 cm with the upper side of pre-painted corrugated sheet and wall panels with aluminium structure.

j.        Interior and exterior joinery.

·   The access doors are made of aluminium with thermopane glass. The exterior doors shall have thermoapane galss and anti-efraction foil. The interior doors shall be made of MDF and the door of the heating plant shall be metallic.

k.      Data and indexes that characterize the designed investment.

Built area:                                          Sc = 152 sq.m.

Layout built area:                             Scd = 296.0 sq.m.

Volume:                                             V = 1070m3.

 Height:                                          H = 7.00 m

2.2.2.     ECOLOGIC WASTE AREA

a.                Location within the precinct.

The ecological waste area will be located in the east side of the precinct, at ~ 3.70 m and ~ 5.00 m form south-east side, as per the layout plan integral part hereto. As for its cardinal point orientation, the construction is oriented as follows: the long side is oriented on the North-West – South-East direction. The access to the building will be made through the NV side.

b.               Functional description.

The building has a single level: ground floor. The plane dimensions and the elevation are the following: width = 3.50m, length L =7.60 m, eaves height from footpath level H = 2.49 m and maximum H = 3.53 m.

The access is made from the washing platform, found at an elevation ±0.00 and +0.30 m from the footpath. The ± 0.00 elevation (elevation of the finished flooring of the ground floor) finds at +0.30 m above the footpath’s elevation.

There are two rooms: solid waste room and washing platform.

c.                Construction system and construction materials to be used.

The construction system is made of bearing ACC masonry, with reinforced concrete cores and rings, reinforced concrete slab and plinth and resin-wood pitched roof.

d.               Operational safety.

A check has been performed, to see whether the works comply with the norm regarding the operational safety of civil building design, indicator CE 1-95 regarding: safety of pedestrian traffic, installation safety, maintenance work safety, anti-intrusion and anti-theft safety.

e.                Fire safety

All wood elements of the framing will be treated with Diasil A+B solution, in order to become fire-proof. The combustible materials will be deposited in limited volumes; smoking is not allowed; the normative P118-99 regarding the prevention and extinction of fire must be observed.

f.                 Hygiene, human health, environmental recovery and protection.

There were taken compensatory measures by separating the waste disposal area from the enclosure, by a fence. All spaces are lightened and ventilated according to valid norms. The proposed construction materials are certified and do not affect human health or the environment. The necessary number of garbage cans, with a capacity of 110l, was set according to STAS 8127.

g.                Heat insulation, waterproofing and energy saving.

The waterproof insulation will be vertical and horizontal, made of 2 layers of asphalted carton between three layers of bituminous earth on the plinth and the washing platform floor. The roofing will be made of pre-painted sheet metal, mounted on the roof boarding of resin wood. Collection and evacuation of rain water will be completed through a system of galvanized metal sheet gutters and down drainage pipes. The gutter is 40 cm wide.

h.               Protection against noise.

Not applicable.

i.                  Lighting and ventilation of rooms.

The natural lighting of the waste area is ensured by two 1.80m/0.60m windows, set on the short sides of the construction. The ventilation of the room is ensured through urn and tilt windows, and permanently through the fretwork that connects the masonry walls.

j.                 Interior finishing.

In the garbage can room, rolled concrete floor has been provided in the project. The paint works are made with washable white paint for the walls, and the ceiling will be plated with OSB.

k.               Exterior finishing.

The following have been provided: washed and brushed mosaic floors on the access platforms; washable paint on the exterior walls; leveled plastering on the plinth; the fascia board and the fretwork will be painted in oil.

l.                  Interior and exterior joinery.

The access door is made of metal and has no door step. Metallic windows with simple glass have been provided for good lighting and ventilation.

m.             Data and indexes that characterize the designed investment.

Built area:                                          Sc = 17.8sq.m.

Layout built area:                             Scd = 17.8sq.m.

Net area:                                            Su = 13.9sq.m.

Volume:                                             V = 57cu.m.

Height regime:                                  GF

2.2.3.     BUILDING GE005–GATE HOUSE

a. Location inside the precinct

The gate house will be located on land next to main access of the precinct. The gatehouse is located so as to provide optimal visibility to the access way, the school, the festivity hall and the precinct. The gate house is placed at a distance of about 2.50 m from the fence and at a distance of about 7.40 m from the west side of the school, according to the layout plan. The gatehouse is oriented towards E-V within a configuration of the cardinal points. The access in provided directly from the east side.

b. Functional description

The gatehouse has one level: ground floor. The dimensions of the vertical and horizontal alignments are: length L = 1.50 m, width w = 2.20 m and height from the footpath h = 2.50 m (almost).

The access will be made by a platform, and this is located at footpath cote. The stained glass on three sides provides an optimal visibility to exterior.

  1. Building system and construction materials

It According to the technical documents of the manufacturer (spun glass and polycabornate)

Built area:                                          Sc = 3.3 sq.m.

Layout built area:                             Scd = 3.3 sq.m.

Effective area:                                  Su = ~ 3sq.m.

Volume:                                             V = 8 cu.m.

Height regime:                                  GF

Height:                                               H = 2.50 form the footpath

2.2.4        BUILDING GE007 – WATER TANK

The water tank shall have a built surface of 45m2 in order to ensure the water debit water for fire, a tank of 120 m³ and pumping station.

3.      STRUCTURE

3.1.     CURRENT SITUATION

3.1.1.      BUILDING A - SCHOOL

a.      Location within the premises.

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest. Area of the accommodations with GF+4 stories.

 

b.         Construction system description

The school has one building with sides of 40.36m and 15.60m. The built area is of 577.5 sq. m.

The headroom of the levels is of 3.35 m excepting the 3rd floor of 3.20. The head room of the partially technical basement is of almost 1.70.

The reinforced concrete structre is dual type with longitudinal structural walls (in axis B and C) and 5 transversal structural walls on each side (between axis A-B and C-D with spans of 6m).

In the axis without the structural walls there are provided semi-frames with beams that between axis B and C support the structural walls and outside (axis A and D) on the façade columns.

Having in view the surfaces of the structural walls (54 and 72 sq.m) results that the partitioning is cellular.

The ceilings are made of prefab panels (noted P1 and P2 for the current bay and P3 for color area) supported by the structural walls, beams of the beams of the transversal and façade semi-frames. There are a few areas with complition slabs made of monolith reinforced concrete with the sizes of the beams (noted G1) of 20x50 and façade columns of 30x50cm.

The longitudinal beam is made of monolith reinforced concrete with sizes of 20x50cm and thermal-insulation with ACC slabs of 10cm thickness. The parapets are of three-layer panels with central thermal-insulation. The roof is terrace type with prefab elements.

The partial basement, is between longitudinally axis CD and transversally between axis 1-3,6,7 and 9-13 and on the left longitudinally between axis AB and transversally between axis 1-2 si 12-13.

In order to verify the quality of the materials used to build, non-destructive tests according to the provisions of STAS 457,STAS 3622, STAS 10109/1,STAS 10107/0 the following results were obtained:

-          Monolith concrete class (walls and frames ) C16/18

-          Brick class used for parapets of the façade and partitioning walls C75

-          Mortar class used for parapets of the façade and partitioning walls M20-25  

According to the conclusions of the technical survey, drawn up by a technical expert certified by MLPTL and approved by the CTE of Bucharest Municipality, no consolidation works are necessary for the building.

For the existent situation the following solution shall be used:

-          Improvement of the thermal insulation level;

-          Rehabilitation of the footpaths;

-          Local repairs of the damages discovered during execution

3.2.     NEW BUILDINGS

3.2.1.     BUILDING D – LOCKER ROOM

It has GF and floor and the following sizes 19.58x6.28. The height of the GF is of 2.92m, sand of the floor is of 2.975m.

The constructive system is made transversal and longitudinal elements.

The main metallic columns of the section are made of European profiles -HEB 180 embedded at the bottom side.

For the vertical reinforcement of the structural system there shall be provided vertical-bearing reinforcements made of circular pipes.

 The beams are European elements -HEM 140, the secondary beams are HEB 160.

The infrastructural system is made of isolated foundations under the columns, between foundations on the perimeter areas there shall be provided closing beams made of reinforced concrete with section of 25x60 cm.

The bottom base of the columns shall be embedded in concrete.

 

Provided materials:

 - reinforced concrete class C16/20 for isolated foundations, beams and closing beams.

  - floor concrete C16/20, thickness of 15cm and reinforced with double network of welded mesh;

- reinforced concrete reinforcements PC52 and OB37 for foundations, meshes STNB F6/10cm x F6/10cm;

- steel for rolled profiles OL 37-3k;

- steel for pipes  OL 45-3k.

3.2.2.     BUILDING – ECOLOGIC WASTE AREA

a.      Location within the precinct

The ecological waste area will be located as per general layout plan.

 

b.     Constructive system and materials used

The foundations are made of simple concrete bases and reinforced concrete plinth, set on two orthogonal directions.

The superstructure of the construction is made of ACC type bearing masonry, enforced with one-block reinforced concrete cores and rings, set on two orthogonal directions, embedded at the level of foundation plinths.

Provided materials:

-          reinforced concrete class C12/15

-          cement type CEM II/A-M32.5R;

-          the concrete of the ground floor flooring will be C12/15, 10 cm thick, and will be reinforced with a welded mesh

-          reinforcements of PC52 and OB37 steel concrete, meshes STNB Ø 4/10cm and Ø 4/10cm in the flooring, and independent bars in the slab;

-          the masonry is made of 25 cm thick ACC for bearing walls, with a minimum resistance of 5 N/mm2 and using M50Z mortar.

-          quality class II resin wood for the elements of the framing: wedges, rafters, decking;

-          the covering will be of galvanized metal sheet.

-          the concrete from the plain concrete block will be class C8/10.

The thickness of the reinforcement covering layer will be of 1.5 cm for the slabs, 2.5 cm for the columns, foundation beams and superstructure belts.

3.2.3. BUILDING GE005 – GATE HOUSE

a. Location within the precinct

The gate house will be prefab and standard one, made of polystyrene panels reinforced with glass fibre and with glass on all sides.

This gate shall be located on a concrete platform with the following sizes: length L = 4.30 m, width l = 2.70 m and height h = 20 cm on ballast layer of 10cm.

            The ballast layer of 10 cm will be done after the removal of the vegetal soil 30 cm and a leveling concrete layer of 10 cm shall be cast over the ballast.

            Over the concrete slab, a concrete screed shall be cast in order to ensure a slope of minimum 1.5% for water drainage.

3.2.3. BUILDING GE007- WATER TANK

a. Location within the precinct

The building GE007 – Water tank, shall be located according to the layout plan.

b. Constructive system and used materials

 

Building description

The existing building has a water tank for fire extinguish of concrete with sizes: L=7.00m ; W=7.00m ; H=3.00m and a pumping station.

For the foundation, a general digging shall be done using mechanical means down to level -4.38 besides the soil. There shall be done a ballast layer of 30cm and over it a leveling concrete layer of 10cm(C4/5).

Both the water tank and the pumping station are underground having a cover of minimum 50cm, to eliminate the risk of freezing of the water stored in the tank.

            Both the water tank and the pumping station are made of concrete with sizes of: L=7.00m, W=7.00m and H=3.00m, respective L=2.00m, w=1.50m and H=3.20m (the values refer to the useful free opening of their capacities).

            Both constructions shall have manholes with sealed covers which shall stop the rain water and other foreign elements to get inside. The sizes of the manholes shall be L=1.00m, w=1.00m. They shall be above the soil with minimum 50cm.

The foundation shall have the thickness of 30 cm reinforced with independent bars on both sides, on concrete C4/5 bed of 10cm. At the inferior side of the foundation of the tank a pit shall be provided with L=1.00m, w=0.50m, h=0.20m, towards the pumping station, necessary to locate the suction hood and the connection to empty the tank.

The inferior level of the tank is -3.45 beside the superior level of the slab, and the inferior level of the pumping station is -3.65 from the same level.

The waterproofing from the exterior of the walls made of reinforced concrete shall be protected with rigid elements made solid brick masonry 12.5cm.

At the cast joint between foundation and concrete walls, a XYPEX treatment shall be applied to ensure the joint impermeability.

The walls have a thickness of 25 cm and they are reinforced with independent bars on both sides. The slab has the thickness of 15 cm being reinforced on both sides with bars.

Between the water tank and the pumping station there shall be a joint of 10cm, covered with polystyrene.

The tank shall be tested according to the norms in force and in case of defects they shall be rectified after the complete emptying of the tank.

Provided materials

- reinforced concrete class C16/20 for structural assembly meeting the provisions of normative NE 012-99. The waterproofing level of the concrete is P8.

- the steel reinforcement PC52 si OB37 – in foundation slab, tank walls, pumping station and beams;

- cement type : CEM -II/A S32.5R.

The thickness of the cover layer of the reinforcements shall be of 1.5cm for the foundation and floor slab and of 2.5 cm for the tank walls.

4.      Sanitary installations

4.1.     EXISTING BUILDINGS

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest.

Besides the rehabilitation and modernization of the existing building, building A –School with B+GF+3 floors, a new building was proposed: building D – Locker room, building GE006 – Ecological waste area with GF and the water tank.

 

4.1.1. BUILDING A - SCHOOL

a.      Description of the sanitary installations

The sanitary installations of the School no. 119 have an operational are in an advanced state of wear. The water distribution network, as well as the sewage network, are corroded and clogged, and no longer comply with hygienic-sanitary requirements imposed by legislation.

Because of poor quality execution and improper use, the water supply pipes and the sewage ducts have fissures and pores, and no longer comply with the sanitary norms for the building. The sanitary appliances have calcium deposits on the inner side of the walls, and the current reinforcements are deteriorated because of poor use.

Taking into consideration the provision of the beneficiary – Bucharest Municipality – to bring this school to the parameters imposed by the European Community legislation regarding the functioning conditions for this institution, it is necessary to totally replace the existing installations. On this occasion we find necessary also to supply all the sanitary blocks in the building with hot water.

The supply of the water of the civil and industrial buildings: the sanitary installation was located in the same room as the existing one, being completed with the necessary elements in order to comply with the sanitary norms.

The cold and hot water supply pipes will be made of polypropylene, and joined by electric fusion. This type of material will ensure resistance in time, without creating functional problems. The distribution pipes will be installed on the level of the partial basement’s ceiling, against support elements, joined to the existing reinforced concrete construction elements. As thermal protection, we propose insulations of mineral wool chills, 20 mm thick, protected with aluminum foil.

Both columns and connecting pipes will be mounted either buried in the masonry or in dismountable gypsum board flashings, which will create the adequate and necessary conditions for carrying out educational activities.

The columns will be provided with section ball valves for necessity interventions.

The necessary sanitary appliances will be equipped with closure and supply valves. The WC tanks will be made of plastic materials, with valves having great reliability and functioning resistance and will be high-mounted. Each sanitary block on each level shall have wall wells which shall ensure the hygiene conditions necessary for the drinking water consumption from city network.   

The lavatories shall be completed such as all the sanitary blocks to be equipped with the same type. They shall have mixing taps for an easy and quick usage.

The existing gullies on terrace shall be replaced, as well as the gutters and down pipe which shall be mounted on the same positions and shall drain the rain water into the mixed sewerage network.

The cold and hot water supply pipes of the appliances shall be made of polypropylene, equipped fittings and shall be connected to the distribution network within the basement. The pipes for the supply of the appliances shall be mounted visible or buried in special boxes, easily dismountable in case of necessary interventions.  All the supply columns with hot and cold water of the appliances shall be equipped with sectioning valves in the necessary points.

In order to ensure fire safety in the building interior, according to the “Normative for the design, execution and operation of fire extinction installations - NP 086/2005”, an interior fire safety installation was designed, ensuring pressure and the water quantity necessary for the use of interior hydrants all through the period imposed by the current norms (simultaneous jets, for 10 minutes).  

4.2.        NEW BUILDINGS

4.2.1.     BUILDING B – LOCKER ROOM

For the locker room there were provided 2 wall hydrants, buried in the recess in the area of the stair case in order to be used in all the areas exposed to the fire danger.

The interior installation for fire shall be separate supplied by the exterior fire network, within the precinct of each building in order to ensure the necessary parameters.

Drinking water supply shall be ensured from the network within the school. At the same time the network for hot water shall be supplied from the heating plant room, using the vertical boiler located near the distribution pipe.

The 2 supply pipes for drinking water and hot water shall be have arborecent distribution system, with the main „bar” parallel with the central wall with ramifications in the supplying points of the sanitary columns and objects.

For drinking water network there shall be used pipes and fittings made of polypropylene, type PPR (Polypropylene Random Polymer) reinforced with aluminuim alloy, with diameters between Ø 20 mm – Ø50 mm, that shall be mounted at the upper side of the GF, in the suspended ceiling or in the gypsum board walls; for the hot water there shall be used galvanized pipe threaded using galvanized fittings. The pipes for hot water supply shall be thermal-insulated with pipes made of synthetic materials ensuring a minimum protection form thermal point of view.                                                                                                                                                    

The used sanitary appliances shall be of 1st quality with standard sizes: lavatories shall have a length of 50 – 55 cm, the wc’s shall have horizontal and vertical outlet depending on the position specified in the column scheme. The shower room for pupils shall have two taps and a floor trap to take over the waste water.

After the completion of the mounting of the new pipes, sanitary appliances and other – before embedment of the pipe sin walls – the seal-pressure test shall be carried out – test pressure 5 kgf/cm², for 30 min, during which the pressure shall not go bellow 2% - and operational test with the appliances mounted. Only after t5hese test the finishing works shall continue and then the installation is operational.

4.2.2.     BUILDING GE006 – ECOLOGICAL WASTE AREA

The hygienic conditions will be ensured by providing a washing tap, for washing the garbage cans, and a floor outlet of enameled cast iron, Dn 100 mm. The intake of washing water will be ensured by the floor slope, from the walls to the position of the floor outlet.

The position of water and sewage couplings will be adopted depending on the position of the ecological waste area within the school.

The necessary water for the washing of the ecological waste area will be ensured by the cold water network of the school.

4.2.2.     BUILDING GE007 – WATER TANK

DESCRIPTION OF THE SANITARY INSTALLATION

In order to meet the request „Fire safety”, Law no. 10/1995, regarding Quality in constructions, as well as the normative NP 086 – 2005, for Design, execution and usage of the fire extinguish installations, taking into consideration the fact that in the location area, the parameters of the supply network with drinking water are under the minimum value necessary to operate in normal conditions of the school, a water tank was provided for drinking water and fire extinguish, made of a tank of 120 m³ - ensuring the necessary volume for the extinguish of an eventual fire (of 110 m³) and a pumping station.

The installation was sized according to Normative for design and execution of the sanitary installations I 9 / 1994 and STAS 1478 / 1990 – Sanitary installations. Water supply of the civil and industrial constructions.

The tank, made on reinforced concrete, shall be supplied with drinking water using a pipe of polyethylene of high density, connected to the school pipe within the metering manhole. The tank shall be filled using a floating valve. The necessary pressure shall be ensured by an electric-pump located in the pumping station next to the tank. The pump shall be automatically turned on/off by a pressure sensor mounted on the drain pipe, or manually from to pre-set points.

There was provided an additional volume of 10 m³ - for the installation of cleaning the WCs and urinals within the existing sanitary blocks in the school. The suction pipe shall be connected to the pumping group with water supply plant using a “pipe” with a hole to the superior hole, which shall stop the pump group in case the water debit necessary for cleaning is bigger than the possibilities of the pumps and connection of the drinking water. The water tank shall supply both the sanitary blocks with cold water and the interior and exterior installation for fire extinguish.

In order to ensure the floating valve, for the supply of the tank, there shall be provided a overflow pipe, with discharge funnel, in case of the damage of the valve. The overflow pipe shall be connected to the sewerage network of the precinct.

In case of accidental drain of the water, a pit shall be provided. The water shall be drained to the exterior from this pit using a pump.


5.      HEATING AND VENTILATION INSTALLATIONS

5.1.     EXISTING BUILDINGS

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest.

Besides the rehabilitation and modernization of the existing building, building A –School with B+GF+3 floors, a new building was proposed: building D – Locker room, building GE006 – Ecological waste area with GF and the water tank.

  1. Description of the heating installation

 

The heating installation shall be rehabilitated and adjusted to the existing system. During this rehabilitation the exterior walls shall be insulated with thermal insulation boards in order to decrease the thermal transfer as per detailed design in order to meet the limit values imposed by the law.

The heating installation was sized as per Normative I13 - 2002, SR 1907/1,2 - 1997 and STAS 6472/3-1989, and resulted to have a thermal capacity of 403.5 kW. The radiators shall be panels made of steel, mounted on supports in all the rooms which need heat supply. The radiators which shall be used shall be panel radiators with one or two column rows with a height of 600 mm. the exact length of the radiators shall be set when purchasing, depending on the supplier and the specific characteristics of the chosen radiators.

The distribution pipes, located in the technical basement of the building shall be made of steel, with diameters between ½” and Ø 76 x 3.5. They shall be mounted on supports fixed on walls of concrete. In the connection points of the pipes with the distribution pipes, fix fasten points shall be used. The pipes shall be supplied as arborescent system, being accordingly sized.

Generally the heating pipes shall keep the same positions, in order to use the existing channels under the floor of the basement and not to damage of the existing constructions. In order to use the existing channels in the floor, the prefab slabs shall be removed, after the removal of the floor and existing screed. After the finish of the mounting of the new pipes, new radiators and other elements of the installation, the hydraulic test shall be carried out and after this, hot pressure operation test. After the tests, the pipes shall be insulated with mineral wool shells protected with aluminium foil. Then the channels shall be covered with prefab slabs, the screed shall be cast and the floor redone. The connection to the radiators shall be executed with thread fittings made of iron or brass and fittings made of copper. For the connection of the new radiators, there shall be used copper pipes and fittings for valves for supply pipes. The connection pipes to the radiators shall be buried into the wall, thermal insulated and protected by flexible pipe.  The slope of the pipes shall be of 2 ‰, ascendant towards the pipe for turn and descendent from the radiator towards the return pipe. The heating radiators shall be connected such as: turn pipe on one side and the return pipe on its opposite side.

At the end of each pipe, on turn pipe, at a height of 2.50 m from the floor, automatic aeration devices shall be mounted, to permanently evacuate the air from the installation, without any intervention.

There shall be used sectioning valves, mounted in the necessary points in order to isolate a building, pipe or the entire installation, for the intervention to the installation in case of defects occurred during operation.

Description of the ventilation installation

 

The toxic air shall be evacuated by a hood with natural draught made of PVC. Because it is in good conditions, it shall not be replaced.

Air conditioning devices shall be mounted in the rooms:

-          teacher’s room 12000 BTU/h;

-          IT cabinet 24000 BTU/h.

BUILDING B+C – LINK + SPORTS HALL

The heating installation was sized as per Normative I13 - 2002, SR 1907/1,2 - 1997 and STAS 6472/3-1989, and resulted to have a thermal capacity of 403.5 kW. The radiators shall be panels made of steel, mounted on supports in all the rooms which need heat supply. The radiators which shall be used shall be panel radiators with one or two column rows with a height of 600 mm. the exact length of the radiators shall be set when purchasing, depending on the supplier and the specific characteristics of the chosen radiators.

The distribution pipes, located in the technical basement of the building shall be made of steel, with diameters between Ø ½” and Ø 1½”   mm. They shall be mounted on supports fixed on walls of concrete. In the connection points of the pipes with the distribution pipes, fix fasten points shall be used. The pipes shall be supplied as arborescent system, being accordingly sized.

Generally the heating pipes shall keep the same positions, in order to use the existing channels under the floor of the basement and not to damage of the existing constructions. In order to use the existing channels in the floor, the prefab slabs shall be removed, after the removal of the floor and existing screed. After the finish of the mounting of the new pipes, new radiators and other elements of the installation, the hydraulic test shall be carried out and after this, hot pressure operation test. After the tests, the pipes shall be insulated with mineral wool shells protected with aluminium foil. Then the channels shall be covered with prefab slabs, the screed shall be cast and the floor redone. The connection to the radiators shall be executed with thread fittings made of iron or brass and fittings made of copper. For the connection of the new radiators, there shall be used copper pipes and fittings for valves for supply pipes. The connection pipes to the radiators shall be buried into the wall, thermal insulated and protected by flexible pipe.  The slope of the pipes shall be of 2 ‰, ascendant towards the pipe for turn and descendent from the radiator towards the return pipe. The heating radiators shall be connected such as: turn pipe on one side and the return pipe on its opposite side.

At the end of each pipe, on turn pipe, at a height of 2.50 m from the floor, automatic aeration devices shall be mounted, to permanently evacuate the air from the installation, without any intervention.

There shall be used sectioning valves, mounted in the necessary points in order to isolate a building, pipe or the entire installation, for the intervention to the installation in case of defects occurred during operation.

5.2.     NEW BUILDINGS

 

LOCKER ROOM  

The thermal comfort shall be ensured by using steel static radiators, panel type, supplied with heating energy from the same heating plant located on the GF of the building. The distribution pipes shall be of copper. The plant shall be provided with adjusting and automation system, such as the gas consumption to be minimal.  The plant shall ensure the preparation of the necessary hot water using a boiler of 200l.

The radiators which shall be used shall be panel radiators with one or two column rows with a height of 600 mm. the exact length of the radiators shall be set when purchasing, depending on the supplier and the specific characteristics of the chosen radiators.

After the finish of the mounting of the new pipes, new radiators and other elements of the installation, the hydraulic test shall be carried out and after this, hot pressure operation test. After the tests, the pipes shall be insulated with mineral wool shells protected with aluminium foil. Then the channels shall be covered with prefab slabs, the screed shall be cast and the floor redone. The connection to the radiators shall be executed with thread fittings made of iron or brass and fittings made of copper. For the connection of the new radiators, there shall be used copper pipes and fittings for valves for supply pipes. The connection pipes to the radiators shall be buried into the wall, thermal insulated and protected by flexible pipe.  The slope of the pipes shall be of 2 ‰, ascendant towards the pipe for turn and descendent from the radiator towards the return pipe. The heating radiators shall be connected such as: turn pipe on one side and the return pipe on its opposite side.

At the end of each pipe, on turn pipe, at a height of 2.50 m from the floor, automatic aeration devices shall be mounted, to permanently evacuate the air from the installation, without any intervention.

There shall be used sectioning valves, mounted in the necessary points in order to isolate a building, pipe or the entire installation, for the intervention to the installation in case of defects occurred during operation.

6.      ELECTRICAL INSTALLATIONS

6.1.     EXISTING SITUATIONS

The school located in Bucharest has Building A – School with B+GF+3F, Building B – Sports hall and Building C – Link building.

The general board is located in a room located on ground floor. The electric protection of the circuits is ensured by fusible.

The power will be supplied by the city power supply network from a connection point set up by SC ELECTRICA SA. The general electric board located in the basement of the building.

6.1.1.     CORP A – SCOALA

a. Description of the electric installations - Generals

The power will be supplied by the city power supply network from a connection point set up by SC ELECTRICA SA. The general electric board located in the basement of the building. For secondary electric boards shall be supplied by the general board:

- Board TP – GF

- Board TE 1 – 1st floor

- Board TE 1 – 2nd floor

- Board TE 1 – 3rd floor

- Board TCP – gate house

- Board – sports hall

the technical parameters of the building are the followings:

Pi = 115.3 KW

Pa = 80 KW

U =  3 x 380/230V – 50Hz

In = 136A

The metering devices for power shall be provided with electric connection of 0.4 kV in the metering three-pase box.

For the consumers that need countinuous operation there shall be provided a emergency board TSig. The emergency board shall supply the emergency lightings units. The electric board of the pupms for fire estinguish shall be supplied from the connection box.

The electric pipes shall be made.

Lighting electric installations and sockets

The electric circuits shall be made of copper consuctors FY, buried mounted laid in protection pies, type IPY. In the basement there shall be used protection pipes IPEY.

  

 The following lighting units shall be used:

-          In offices fluorescent lighting units, 4x18W, visible mounted, ensuring the minimum lighting level of 300;

-          In the sanitary blocks, fluorescent lighting units 1x18w sau 1x36w visible mounted;

-          In class rooms, fluorescent lighting units 2x36w;

-          In the basement, incandescent lighting 1x40W;

-          Exterior lighting units mounted on the columns 1x70W;

The interior hydrants shall be marked with emergency lighting units provided with accumulators

The circuits of the lighting and sockets shall be made of copper conducorts, type FY2x1.5 mm2 for lighting and FY3x2.5 mm2 for sockets. The switches shall be of 10 A/220 V, visible mounted in rooms or access halls.

             

Lightning installation:  shall be mounted on the roof of the school:

 The lightning installation shall have:

-          starting device;

-          conductors which may be metallic elements of the building;

-          earthing socket mounted at minim 1.5 m from the building with the resistance of the socket less of 1 ohm.

Low voltage installation

Fire detection and signaling system

I. Description

The system shall have:

-          control and signaling station

-          detection and signaling network

-          acoustic signaling network

-          inter-connection network

The detection network shall have detectors and buttons for signaling.

-          smoke anlog detectors;

-          analog buttons for manual signaling;

Also, there shall be provided:

- control modules;

- inlet module;

II.  Installation of the fire signaling system

·                  Cabling

            The signaling installation shall be buried or visible mounted.

            The circuits of the installation shall be copper conductors. The cable shall be type: J-H(St)H-E30 1 x 2 x 0.8 mmp.

            The nominal voltage of supply shall be of 24 Vc.c.

           

·                  Central unit

The central unit shall be mounted in Secretariat. The connection cables shall be connected in the central unit.

·                  Detectors

            The detectors shall be distributed as per national norms.

·                  Manual buttons

     The manual buttons will be mounted according to the plans, on the lateral walls at a height of 1.55 m.

     Data-voice

There shall be used sockets and cables category 5e for PCs and phones.

The cables for phone and PC shall be buried mounted and protected by plastic pipes.

For the connection of the telephone station, there shall be PVC-U pipe of Æ63 mm, in the walls of the building.

The phonic circuits shall be mounted at a minimum distance of 25 cm.

PC sockets shall be provided in the classrooms of the school. All the circuits shall be connected to the rack located in the IT laboratory.

           

Anti-efraction

This sub-system has automatic detectors of movement. The infrared detectors use the properties of the worm bodies to emit infrared radiations, which are digitally adapted depending by the amplitude and density of the signals received in order to prevent the false alarms. The maximum distance of detection is 12m, with an angle in horizontal plan of 90o and a speed between 0.2 and 7m/s. The detectors will be mounted according to the plans, between 2.1 and 2.5 m, in one of the corners of the supervised room.

6.1.2.     BUILDING B – SPORTS HALL

a.      Description of the electric installation

The ligting unit of the sports hall shall be supplied form the general board of the school through a cable CYAbY5x6mm2. There shall be mounted electric boards for locker room and storage that shall be supplied by the general board of the sports hall

The following lighting units shall be used:

-          In office and cabinets, fluorescent lighting units 2x36w;

-          Incandescent lighting units 1x60W for exterior;

-          Projectors 1x250W for sports hall;

-          Fluorescent lighting units 1x18W sau 1x36W, for locker room and sanitary blocks.

The circuits of the lighting and sockets shall be made of copper conducorts, type FY2x1.5 mm2 for lighting and FY3x2.5 mm2 for sockets. The switches shall be of 10 A/220 V, visible mounted in rooms or access halls

Power supply

            Pi = 26.81 kW

            Pamax = 18 kW

            U = 3x380/220V – 50Hz

 

Low voltage installation

Fire detection and signaling system

 

I. Description

The system shall have:

-          control and signaling station

-          detection and signaling network

-          acoustic signaling network

-          inter-connection network

The detection network shall have detectors and buttons for signaling.

-          smoke anlog detectors;

-          analog buttons for manual signaling;

Also, there shall be provided:

- control modules;

- inlet module;

II. Installation of the fire signaling system

·                  Cabling

            The signaling installation shall be buried or visible mounted.

            The circuits of the installation shall be copper conductors. The cable shall be type: J-H(St)H-E30 1 x 2 x 0.8 mmp.

            The nominal voltage of supply shall be of 24 Vc.c.

 

·                  Detectors

            The detectors shall be distributed as per national norms.

·                  Manual buttons

     The manual buttons will be mounted according to the plans, on the lateral walls at a height of 1.55 m.

6.1.3.     BUILDING B – LINK BUILDING

The ligting unit of the sports hall shall be supplied form the general board of the school through a separate circuit.

The following lighting units shall be used:

-          In office and cabinets, fluorescent lighting units 1x36w;

-          Incandescent lighting units 1x60W for exterior;

6.2NEW BUILDINGS

6.2.1.     BUILDING B – LOCKER ROOM

The ligting unit of the sports hall shall be supplied form the general board of the school through a cable FY5x6mm2. There shall be mounted electric boards for locker room and storage that shall be supplied by the general board of the sports hall

The following lighting units shall be used:

-          In office and cabinets, fluorescent lighting units 2x36w;

-          Incandescent lighting units 1x60W for exterior;

-          Fluorescent lighting units 1x18W sau 1x36W, for locker room and sanitary blocks.

The circuits afferent to the lighting and sockets shal be made of copper conductors type

FY2x1.5 mm2 for lighting and FY3x2,5 mm2 for sockets. There are used switches of 10 A/220 V, visible mounted in rooms and on access halls.

Instalatia de protectie contra tensiunilor accidentale de atingere

The protection against accidental voltages shall be ensured as follows:

- all the sockets shall have protection contact;

- in boards there shall be provided automatic devices and protection transformers of 0.03A;

- all the metallic parts of the equipment shall be connected to the earthing sockets with flat iron OLZn 25x4 from the general board TG (Building A – School) to the electric board of the Sports hall.

Electric supply

Installed and simultaneously input power is:

Pi = 10 kW

Pamax = 7 kW

U = 3x380/220V – 50Hz

The electric power supply is ensured by the electric board located on ground floor.

6.2.2.     BULDING GE005 – GATE HOUSE

a.                  Description of the electric installations.

The gate house shall be supplied by an electric board located inside (TCP), equipped with 3 mon-phase circuits.

The board TCP shall be supplied by an electric board located inside TGusing a copper cable CYAbY5x4mmp

The electric board shall have the protection level of min.IP54 made of galvanized sheet and equipped with 3 mon-phase circuits:

-        C1 (lighting circuits) - with automatic switch 1P+N de 220V, 10A.

-        C2 (lighting circuits gate house) - with automatic switch 1P+N de 220V, 10A.

-        C3 (socket circuit) – with automatic switch 1P+N of 220V,16A.

6.2.3.                             BUILDING GE006 – ECOLOGICAL WASTE AREA

a. Description of the electric installations

There shall be used lighting units 2x18W supplied from the closeset electric board using a copper cable CYABY 3x4 mm2. The cable shall be buried at a depth of 0.8m and PVC protection pipe.

6.2.4.     BUILDING GE007 – WATER TANK

There shall be used an incandescent lighting unit 1x40W of 24V voltage.

The electric board shall be supplied from the connection box and there shal be used a protection cable CYAbY5x6 mm2. The cable shall be buried at a depth of 0.8m and PVC protection pipe.

7.             INTERIOR UTILITIES

The school is located at the following address: 4, Almasul Mic, district 4, Bucharest.

Besides the rehabilitation and modernization of the existing building, building A –School with B+GF+3 floors, a new building was proposed: building D – Locker room, building GE006 – Ecological waste area with GF and the water tank.

7.1 GAS NETWORK

Mounting provisions

The exterior pipes shall be made of steel. They shall be preferably buried mounted. The pipes visible mounted on the building elements, depending on the diameter, supports.

It is forbiden that the pipe from the connection box to entry directly into the building.

There is mandatory to mount a automatic gas detector with the inferior sensibility limit of 2% CH4 in air, that will drive the electr-valve that closes the gas supply pipe of the boilers.

Used materials

 

The visible installations shall be made of steel pipes with quality xertificate provided by the manufacturer as per standard 7335/3 or other Romanian standards in force.

For direction changes, ramifications and reducing there shall be used threaded fittings.

7.2.              WATER SUPPLY-SEWERAGE NETWORK

7.2.1.                      DRINKING WATER

The metering manhole is in good condition, only the connection pipe shall be eventually replaced in order to ensure the necessary parameters.

From the metering manhole, the water pipe made of polyethylene of high density, Øext = 90 mm shall that shall supply the consumers form this building and the water tank for fire.

            The two ramified pipes shall be buried, bellow the freezing depth; for the mounting works the technical specifications shall be met, regarding this type of works.

The necessary debit and pressure for the fire extinguish shall be ensured through buried exterior hydrants newly designed.

The exterior hydrants shall be supplied by the water tank, using pipes of PEID PN6 SDR 17.5 Øext=90x5.1 mm buried bellow the freezing depth. The two hydrants shall be mounted on the green areas.

The water network for the cleaning of the sanitary blocks within the school shall be supplied by the water tank using polypropylene pipes PEID Ø 50 buried bellow the freezing depth.

The interior hydrant network shall be supplied by the exterior hydrant network, and the exterior diameter at the school entering shall be of 2”.

7.2.2.                      USED WATERS AND RAIN WATER SEWERAGE

The waste water from the school shall be collected using PVC pipes, type KG Ø 200-300 mm, buried and drained in the city sewerage, through the existing manhole, property limit Cex.

Because the level of the drainage manhole shall be kept and the lay-out of the main collector is longer than those of the existing, it is necessary to give up the drainage connection within the pit located in basement of the school (heating plant), the accidental water following to be drained using a submersible pump.

The sewerage pipes shall have a drain slope necessary to ensure the speed v = 0.7 m/sec.

The inspection and control manholes shall be made of prefab concrete pipes as per STAS 2448 – 1982.

            In manhole there shall be provided an anti-return valve that shall stop the flooding of the precinct with the water from the city collector.

            The sewerage works shall begin only after the obtaining of the notice from S.C. APA NOVA S.A.

7.3 EXETRIOR ELETRICAL INSTALLATION

The power will be supplied by the city power supply network from a connection point set up by SC ELECTRICA SA – MUNTENIA SUD. The general electric board located in the basement of the building. Four secondary electric boards shall be supplied by the general board:

The exterior lighting shall be ensured by reflectors of R=250w mounted on the exterior walls of the building or columns.

The power shall be supplied from the general board using cable CYY barried in protection pipe and visible on the walls of the buildings within the precinct.

The supply connection for the ecological waste area is ensured from building A, the connection being buried in protection pipe and cable CYY.    

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