A.01.30_Project_Description.pdf

FOR OFFICIAL USE ONLY

EUROPE DISTRICT

APO AE 09049

School – 100% Final Corrected Design Bis General Project Description March 15th, 2017

Replace Brussels Elementary / High School American School EM/HS, Sterrebeek - Contract no. W912GB-11-D-0020 - Task Order no. 0017 - Project no. EU00064

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

USACE Europe District / Replace Brussels EM/HS, Sterrebeek

100% Final Corrected Design Bis / Project Description

Version D dd: 15/03/2017

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GENERAL PROJECT DESCRIPTION

TABLE OF CONTENTS

1. INTRODUCTION

2. CIVIL WORKS

3. SITE ACCESS

4. FACILITY DESCRIPTION

5. FACADES

6. ARCHITECTURAL

7. STRUCTURAL

7.1 FOUNDATIONS

7.2 EXTERIOR (LOAD BEARING) WALLS

7.3 STRUCTURAL FRAME

7.4 FLOOR AND ROOF SLABS

7.5 STAIR- AND ELEVATOR CASES

7.6 ANTITERRORISM / FORCE PROTECTION

8. PLUMBING

8.1 SITE WATER SUPPLY

8.2 DOMESTIC WATER TREATMENT

8.3 DOMESTIC WATER DISTRIBUTION SYSTEM

8.4 DOMESTIC HOT WATER (SOFTENED)

8.5 SOFTENED COLD WATER

8.6 RAINWATER RECUPERATION AND DISTRIBUTION

8.7 SANITARY EQUIPMENT

9. MECHANICAL

9.1 GAS

9.2 BOILERS

9.3 HOT WATER DISTRIBUTION

9.4 COOLING SURFACE

9.5 VENTILATION

9.6 HVAC CONTROL SYSTEM – BMS (BUILDING MANAGEMENT SYSTEM) – FIRE PANEL 17

10. FIRE PROTECTION

10.1 OUTSIDE FIRE HYDRANTS AND FIRE DEPARTMENT CONNECTIONS

11. SPRINKLER

12. INSIDE FIRE POSTS

13. ELECTRICAL

13.1 HIGH AND MEDIUM VOLTAGE SYSTEMS

13.2 LOW VOLTAGE SWITCH GEARS

13.3 LOW VOLTAGE DISTRIBUTION SYSTEMS

14. LIGHTING

14.1 LIGHTING CONTROL SYSTEM DALI/KNX

14.2 EMERGENCY AND ESCAPE ROUTE LIGHTING

15. UPS

16. FIRE ALARM

17. SOLAR PANELS

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18. ELEVATORS

19. KITCHEN

20. FIXED FURNITURE

21. APPENDICE: DRAWINGS

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1. INTRODUCTION

The Brussels Elementary, Middle and High school at Sterrebeek will be replaced by a new school built under the criteria of the '21st Century Schools' created by DoDEA (Department of Defense Education Authority). The overall gross area of the facility is about 6,700 m².

The new Brussels ES/HS is to be constructed on the existing sports field located on the northeast corner of the Sterrebeek Annex. A new athletic field to replace the existing field is to constructed South of the existing field.

The new building is positioned with the main entry facing West and secondary entrances on the East, South and North side.

Moreover, two tennis courts will be installed at the East side of the school and next to the athletic field. Additional parking places offering a total of 55 car places will be provided at the East and West side of the school. Also a car drop-off area will be foreseen. Eleven bus parking places will be provided at the North side of the school.

The project will not replace the existing Music and Arts facility and the existing Gymnasium. Building 8, next to the new school, will not be demolished.

The project is designed to meet the requirements of the DoDEA 21st Century Education Specifications for a projected student population of 240 and 38 staff.

Interior spaces include studios, neighborhoods, learning hubs; learning impaired rooms, staff collaboration areas, flex laboratories, special education spaces; guidance counseling and professional development centers, health services; exploratory spaces (CTE and science labs, etc.); shared commons space, performance space, information center, food service, administrative offices, supply and storage rooms, recreation support facilities, and other required areas for a fully functioning school.

Building systems integration/coordination between the existing building system and this project will be required to insure that integrated campus systems are achieved.

The project includes site improvements such as bus loading and unloading areas, van drop off, roadways, parking, signage, fencing, walkways, student drop off areas, delivery areas, playgrounds, recreation areas, outdoor learning spaces, landscaping, covered walkways (canopies), exterior lighting and ATFP appurtenances.

A pumphouse for the sprinkler installation will be located next to the west parking and the corresponding underground water tank will be installed under the parking.

The goal of DoDEA is to design schools to meet 21st century learning objectives to include innovation in education, curriculum delivery, use of technology, and the requirements for sustainability and energy conservation. DoDEA requires schools of the future to be flexible and adaptable, allowing adjustments to new and innovative ways to deliver instruction and meet the needs of all students. A focus on quality shall be maintained throughout the project including design and construction. The ultimate objectives for DoDEA are to deliver a project on time, within available funds, and in a safe manner that satisfies the needs of the users.

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The design maximizes sustainable principles; energy conservation and environmentally safe measures are being incorporated. The design is conceived in accordance with USGBC LEED for Schools requirements in order to obtain SILVER certification.

This project shall be commissioned by LEED Enhanced Commissioning. The Contactor shall participate in the LEED Enhance Commissioning process with a US Government Commissioning Agent.

Aspects of sustainable design and LEED, including Life Cycle cost effective practices, in order to minimize energy consumption and environmental impact are incorporated in the design:

Low maintenance, durable materials appropriately located in high use areas are provided.

Reinforced insulated walls and roof insulation.

Large windows to provide as much as possible natural light in all areas.

Window louvers or sun shadings in order to minimize the solar heat gain and provide diffuse natural light.

Regional materials with recycled content are foreseen.

Indoor air quality is optimized

Low emitting materials are used wherever possible.

Energy performance of building and installations is optimized and use of (on site) renewable energy is preferred.

Water efficient landscaping with the use of native plants.

Necessary facilities for the bikers are foreseen.

Green roof on a part of the building.

Solar panels are provided on a part of the building.

The design takes into account the Building Energy Performance code in Belgium and meet Energy Performance Level E55 for the building permit.

The project also includes a new athletic field for the high school students and community use. The new athletic field replaces the existing football/soccer field. The layout, dimensions, and amenities are designed in accordance with the National Federation of State High School Associations (NFHS) court and field diagram guides, and American Sport Builders Association (ASBA).

The new multipurpose athletic field is located on the South of the New School building and on the East of the Sterrebeek site on an existing agriculture field. The longitudinal orientation of the running tracks and of the football field is East/West.

The new athletic field is designed to support the following sports:

o Soccer, o Football, o 6 Running tracks including 100 m dash, 200 m dash, 400 m dash, 110 m hurdles, 300 m hurdles, 100 m hurdles, 800 m run, 1500 m run, 1600 m run, 3000 m run, 3200 m run, 4 x 100 relay, sprint medley relay for 200/200/400/800, 4 x 400 relay, 4 x 800 relay o High Jump, J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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Page: 7 / 23 o Long Jump, including triple jump, o Discus o Shot Put.

A ring road is also foreseen on the South and on the East of the running tracks, with a steel backed timber guard rail where embankment is present, retaining walls between the ring road and the running tracks, embankments around the running tracks.

A Field House has been accommodated in the North-West corner of the site. Site lighting for the field and pedestrian access lighting are included.

Seating for both home and visiting team supporters is located on the North side of the fields and incorporates amphitheater style seating, using precast concrete and wooden benches. Precast steps create a number of access points to the amphitheater seats.

A press box is located next onto the concrete bleachers. The difference in height allows a good overview of the athletic field.

2. CIVIL WORKS

The building site location is on the direct landing path of the 02/20 runway of Brussels Airport. This is a secondary runway that is utilized only in the presence of heavy North/South winds. Belgocontrol (Air traffic Authority) has issued a height limitation on any structures in the runway path, thus affecting the new building site. The design team consulted Belgocontrol who authorized a limited height of +80.00m above sea level for new construction on the site.

The new School Building facilities will be set at finished floor elevation (FFL) of +67.50m to minimize impact of earthwork on the site and to facilitate a balance of earthwork cut to fill quantities as much as possible.

This FFL level of +67.50m will lower the impact of excess of earth to be evacuated from the existing athletic field site outside the school site. The existing athletic field mean level is set to 68.80m and the area is +/- 18.245 m2. The excess of earth to be evacuated is calculated at +/-24.000 m3.

The grading will facilitate accessibility in accordance with Architectural Barriers Act (ABA). It will also ensure the natural flow of storm water and used water away from the building. The ground floor is raised above the surrounding ground as per regulations.

The preparation of the site for the new school includes demolition of the existing sport field facilities, demolition and relocation of the existing roadway, earthwork re-grading to meet the lower grade elevations for the new school, installation of new perimeter fencing and associated amenities to meet the Garrison safety and security requirements and provide sufficient utility tie-ins. The site is located within a controlled perimeter. Controlled vehicle access shall be required within the designated stand‐off distance; controlled access shall be provided by vehicle non‐rated drop arms.

Supporting facilities will include communication systems, HVAC, electrical power, water, sanitary and storm sewer, exterior lighting, utility management and control

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Page: 8 / 23 system (UMCS), paving, walks, curbs and gutters. The facility shall be accessible for disabled people according to ABA and Flemish regulations.

Disabled people access is ensured in conformity with ABA by providing at least the required number of parking spaces in close proximity to the main entrance of the building but outside the 20m stand-off perimeter. All public entrances to the building shall be accessible for disabled people.

Flush curbing or ramps are used to facilitate wheel chair cart passage.

Pedestrian access is facilitated by arranging access from the parking areas to the school.

Athletic Field:

The new facilities ground level is fixed at 65.34m in the center of the football field. The highest equipment of the site are the lighting poles. Those lighting poles will not go above the height limit of +80.00m imposed by Belgocontrol (Air traffic control).

Utilities:

New sewer and drainage lines shall be provided connecting to the city sewer in front of Gate #9. This work will be performed under a separate contract. Tie in points for the new school are new manholes on the border of the school ground.

The School complex will be totally independent from the existing school sewer system.

The new sewer pipe network will discharge by gravity in the city sewer running along the Kennedylaan.

An underground storm water buffer is foreseen in accordance with Flemish legislation.

3. SITE ACCESS

Vehicular ingress/egress on the site is done via gate #7 and gate #9.

Car ingress/egress is foreseen to be done via the gate #7 and the ring road on the South, the East and on the North of the school site.

Buses and trucks ingress/egress is foreseen to be done via gate #9 and the northern part of the ring road. A ‘U’ turn on North-East corner of the new school site is foreseen to allow buses and trucks to return to gate #9. Access for the garbage removal will be done in the same way. In case Gate #9 is not accessible, cars and buses will travel from Gate #7 and the ring road.

Service trucks and garbage trucks shall use the ring road on the East and on the North of the school.

The access to the construction site is shown on the following sketches:

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4. FACILITY DESCRIPTION

The building consists of a partial one-story neighborhood and administration wing connected to a two-story commons space framed by two-story neighborhoods, exploratory learning and building support spaces. A partial basement level for MEP equipment is located below the north-east corner of the two-story wing. The overall building footprint extends 72.42 meters in the north-south x 107.92 meters in the east-west direction. The building has a footprint of approximately 4,488 square meters.

The new school will be composed of three neighborhoods, a six-studio Elementary School (ES) neighborhood and two five-studio neighborhoods dedicated to the Middle and High School (MS/HS). The two five-studio neighborhoods are to be stacked on top of one another to allow for a more seamless transition between classes for the higher grade students, and more flexibility for the school to distribute course program each year. The two neighborhoods wings are positioned at opposite ends of the building in a rotated adjacency, creating an “L” shaped plan. This allows for separation of program inside while helping define the site outside.

At the ground floor level the administration, performance space, information center, along with the kitchen and building support spaces are all clustered together at the north and east sides of the 2 story commons to allow the south side to be glazed to the exterior. This creates a strong relationship to the existing campus buildings and the outside play areas, and takes advantage of the spectacular views to the South. A convenience stair with glass guard rails at the commons brings students up to the first floor.

The first floor is organized efficiently by combining the CTE and Science departments into one larger hub neighborhood that is connected directly to the first floor HS neighborhood through the commons. This allows for a very compact overall scheme that organizes the school’s program with appropriate adjacencies. Fire egress stairs are located at the north and south ends of the 2 story wing and at the center adjacent to the elevator and toilet room core. The central stair on the east side will provide access to the roof where roof top Air Handling Units for the HVAC system are located.

The school is intended to have one primary entrance at the north-west corner of the building with the administration wing forming a clear entry. Secondary means of entry are to the East to allow faculty and staff direct access from the eastern parking lot, and to the North, in the event that the school would need a second entry for students arriving by bus. The goods receiving area is at the north-east corner of the building and will contain a back-of-house entry and loading area. A partial basement with a separate stair access and equipment access areaway will house MEP equipment spaces.

The building is occupied during normal school hours five days a week, Monday through Friday. For weekends, after school hours, and school breaks the building may be used for afterschool activities and community events.

Furniture and equipment will be movable and flexible in arrangement to maximize the spatial possibilities for instruction and learning. Movable furniture and equipment is not

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Page: 11 / 23 included in this contract. Shared open spaces such as the learning hub and commons offer space for collaboration among larger groups of students and instructors.

5. FACADES

Exterior cladding materials include light toned brick with glazed colored accent bricks, punched insulated aluminum windows with colored painted frames and sunshade devices with fritted glazing where required for solar protection, areas of glazed curtain wall at Commons and Neighborhoods, stone base at the exterior masonry wall and curtain wall. The brick will be treated with a hydrophobic impregnation to provide long term protection against pollution and discoloration. Windows in the studio/learning space and offices will have operable units. Exterior insulated frame doors with laminated glazing will be used and painted insulated hollow metal doors and frames will be used at service entries. The sprinkler house will be finished with wooden cladding in random widths and open joints. The wood is thermally modified and impregnated, but will age and become grey.

The level of thermal insulation will comply with the related Belgian standards and will have a global “K” coefficient of at least 45 according to the local regulation, implementation of the European directive EPBD (Directive 2002/91/CE of the European Parliament and of the Council of Dec. 16th 2002 about the energetic performance of buildings). Permanent ventilation devices are also foreseen according to the latest Flemish regulation. Not only a global insulation level is required but each building envelope element needs to comply with minimal requirements.

6. ARCHITECTURAL

The building is a two-story building with a flat roof and partial basement.

The building construction will consist of structurally reinforced concrete walls and columns supporting precast concrete floor slabs with a lightweight concrete topping.

The brick construction is compatible with regional architecture and its durability is particularly appropriate for the activities of school life. The maintenance cost for the brick and coated aluminum exterior finishes will be minimal.

Roofing materials include light colored membrane roof, powder coated metal roof panel systems and exterior covered walkways.

Interior walls are painted plaster finished masonry block. Acoustical wall panels will be used in areas where acoustic treatment is required. Wet areas such as kitchens, toilets and locker rooms will have partitions with a tile finish. Interior flooring materials will include resilient sheet flooring in studios, hubs and learning spaces such as labs computer labs and information centers; porcelain tile in wet areas such as toilet rooms and kitchens; an elastomeric poured flooring in larger public areas such as the Commons and Performance space and porcelain tile at entries. Acoustical tile ceilings will be used for most areas. Exposed coated structure with acoustical perforated baffle systems in common spaces such as the Commons. Acoustical perforated wooden ceiling and wall panels, as well as perforated metal wall panels are being used in the Performance space.

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Interior operable partitions in glazed and solid finish construction partial with writable surfaces will be used. The percentage of transparency will be respected. Interior powder coated metal doors with glazing in fixed metal glazed partitions will be provided.

Partitions as well as interior doors will meet required acoustical criteria.

Specialized equipment and casework will be provided in the science labs. Powder coated metal lockers for the middle and high school will be provided. Special lighting, theater equipment and fixed seating will be provided in the performance space.

7. STRUCTURAL

7.1 Foundations

A soil investigation has been conducted on 04 December 2014.

Soil characteristics are reported to be medium weak to medium strong silty upper layers to a depth of approximately 6 to 7 m.

As from this depth strong sandy layers are reported.

No water table was found over the depth investigated.

Building foundations will consist of large diameter caisson foundations.

7.2 Exterior (load bearing) walls

Exterior perimeter walls are concrete walls, minimum 20 cm thickness.

7.3 Structural Frame

The structural frame consists of concrete walls at the outer perimeter at the inside mainly cast on site columns and beams.

7.4 Floor and Roof Slabs

Floor slabs at ground floor will be slabs on grade in solid concrete minimum 20cm thick.

The upper floor and roof slabs will mainly be made of hollow core precast pre-stressed floor elements with on-site poured concrete topping.

Slabs will be cast partly on-site in solid concrete.

The roof structure on top of the Commons area consists of precast, pre-stressed concrete beams.

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7.5 Stair- and elevator cases

Stair- and elevator cases will be minimum 20 cm concrete walls and together with concrete outer walls provide horizontal bracing of the building.

7.6 Antiterrorism / force protection

BLAST SURVIVABILITY of the exterior building elements:

Exterior walls are designed against the effects of the explosives weight at the existing standoff distance to the required Low Level of Protection (LLOP).

8. PLUMBING

8.1 Site Water Supply

The Garrison water distribution system in the vicinity of the school project is a DN 160 HDPE fusion welded loop. This network feeds outside fire hydrants and also each site building with domestic water. The new water line will be running alongside the school building. The existing water supply line cannot be used. Therefore, two new water connections at gate #9 will be installed until the school boundary limits. This will be done by a third party DPW. The contractor will extend the potable waterline to the new school building tie-in in the area of the Nord West corner of the parking.

The second line will be used to create the fire water loop around the school; it will be supplied by fire pumps and water tanks. A connection from the fire water loop to the school will be used for the fire protection inside the school building and this for the sprinkler and fire hose installation. A new water tank with a fire pump installation will be installed next to the school by the contractor to guarantee water pressure and water volume to the firefighting installation of the school.

8.2 Domestic water treatment

Hardness of water is around 40° Fr (French degree). A water softening system shall be installed for the hot water supply (sanitary hot water and to fill up the heating installation.)

The capacity of the softeners shall be calculated for the complete water consumption.

The domestic cold water will also be softened to all the water points excepted toilets and hose bibs.

A duplex of ion exchangers shall be provided. Each exchanger shall be equipped with its salt basin. A volumetric and chronometric regulator shall be provided in order to program the alternative regeneration of each unit.

The system shall be designed so that the two units can work in parallel during high consumption periods.

An automatic back flushing filter shall also be provided.

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8.3 Domestic Water Distribution System

The domestic hot water shall be supplied from main headers in the boiler room. The cold water and rainwater pipe shall be supplied from main headers in the water room.

Distribution of the water supply shall be placed in shafts that will also serve as routing for sewer risers. All domestic water pipes, for water distribution to the fixtures except in the mechanical room will be concealed above the false ceilings.

All penetrations made in floors and fire rated walls shall have a fire stopping system.

8.4 Domestic Hot Water (softened)

Domestic hot water shall be produced by a plate heat exchanger fed by the two central heating boilers. Warm water will be provided for restrooms, kitchen, safety showers, health services and science labs.

Warm water shall be produced by the boilers placed in the boiler room; they provide the water to heat up the building. When there is a demand for sanitary warm water, priority shall be given to the warm water production for a short instance and a plate heat exchanger will be fed by the two central heating boilers.

A warm water reserve of 500l will guarantee a continuous warm water flow.

A warm water loop will be installed connected to all the users. To avoid legionnaire’s disease, sanitary hot water produced by the boilers shall be distributed by a localized continuously circulating loop network at an average temperature of 60°C. The temperature at the taps shall be reduced to 35°C.

A regular temperature increase cycle (anti-Legionnaire’s diseases) shall be programmed. This allows the user to manage the temperature of the water distributed in the loop and to program the periods for heat treatment.

8.5 Softened cold water

Softened water shall be produced from domestic cold water by means of an ion exchanger. The exchanger shall be equipped with its salt basin. A volumetric and chronometric regulator shall be provided in order to program the alternative regeneration of each unit during the night.

Domestic water has hardness around of 40°French, hardness around 12°French is required.

8.6 Rainwater recuperation and distribution

A reusable rain water tank is foreseen. The school building roof rain water is collected and stored in an underground tank adjacent to the storm water buffer tanks.

A hybrid tank will be foreseen from rainwater.

The rain water tank shall be equipped with a stainless steel under water pump, the underwater pump shall be mounted vertically and equipped with a floating suction with a filter which shall bring the rainwater into the hybrid tank.

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The under water pump shall be working in function of a closed pressure switch.

The level of the rainwater tanks shall be readable on the switch panel of de hybrid tank.

The installation is a complete split-up installation; this means that the installation always has a back-up in case of a malfunction.

8.7 Sanitary equipment

All the equipment shall be built in white porcelain.

The mounting levels of the equipment shall correspond to the type of neighborhood age of the children.

Washbasins for disabled people are foreseen.

9. MECHANICAL

9.1 Gas

The natural gas shall be supplied from a new gas connection provided by the gas company near Gate 9. The required capacity of the loop remains to be checked. The gas supply will meet the requirements of the equipment supplier, the Belgian requirements (NBN D51 standard series) as well as the NFPA codes.

Typical underground gas piping is PEHD.

The primary installation will be installed by a third party DPW, including the gas reduction chamber.

A connection request shall be made by the Contractor to start the NETMANAGEMENT gas network study department. The exact position of the connection point will then be confirmed. It will be in the area of the Nord West corner of the parking.

A gas detection system will be provided in the boiler room and in other inside rooms where a gas pipe is passing.

The gas pressure requested for the boilers is + 20-25 mbar.

9.2 Boilers

The central heating plant shall be composed of two hot water gas boilers. The boilers shall work with the lowest possible temperature. Condensation exchangers will be provided on the two boilers.

A hot water reset schedule manual and automatic will be provided.

A pressure sensor on the return side of the boilers will be provided. This will allow pressure differential readings across the boiler heat exchanger.

The boiler will provide heat quantity information to the DDC system so that it can be read by the BMS system.

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Hot water temperature:

▪ 80°C/60°C at the primary header

▪ 70°C/50°C for the radiators, exchangers for the air-handling unit, fan coil units and space heaters (fan heating units)

▪ 40°C/30°C for the (under) floor heating

9.3 Hot water distribution

The hot water distribution system shall consist of several separate circuits, each with one or two circulating pumps, in function of its size and its importance.

Primary collectors shall be installed in the boiler room. Secondary collectors shall be located in each of the HVAC technical rooms (roof level).

The heating plant will also house equipment for domestic water production and distribution.

Almost all areas of the building will be heated by a floor heating system.

Miscellaneous other rooms for example storage rooms and unoccupied rooms, and circulating spaces are heated with radiators.

Technical rooms will be heated by means of air heaters, if needed, to prevent piping and primary air handling exchangers from freezing.

The entrance will be heated by floor heating.

The commons and performance room will be heated by a floor heating system and by air intake by means of displacement grids that also provide the supply of fresh air.

Thermal insulation will be provided in accordance with the CCT 105/90. Insulation by shells of mineral fibers will be provided on lines.

In addition, insulation in the mechanical pipe rooms shall be protected by an aluminum jacket and all other insulation will be protected by a PVC jacket.

9.4 Cooling surface

There is no long distance cooling source existing on the site; therefore the new school building shall have its own cooling unit to provide cooling for several rooms such as data and computer labs.

Air conditioning of server room, data and computer lab data room shall be done by a series of non-reversible systems (cooling only). The cooling in the room will be provided by several cassette units placed in the ceiling.

A variable refrigerant system of 40 kW type split unit will be installed. This system combines one or more DC inverter, air cooled compressors and condensers connected to all the indoor fan coil units throughout the building. The indoor units shall be equipped with a condensate evacuation pump. Precise temperature control can be achieved by using DC inverter compressors with wide capacity modulation.

According to the running load and system pressure, the system controls the speed of the fan to achieve the minimum energy consumption and the best performance.

All the solenoid valves equipped in the unit ensure temperature control precisely.

Cooling liquid R410A will be used.

Compact 4 way cassette types will be placed in the ceiling tiles for the computer labs.

Temperature will be controlled in the room by a wall mounted thermostat with an

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Page: 17 / 23 integrated temperature probe. The temperature will be automatically adjusted for all the cassettes in the room.

A manual temperature override between +2/-2 °C is possible.

9.5 Ventilation

The ventilation shall meet the most stringent of both, either the ASHRAE standards or

NBN EN 13779.

The Belgian climate is very rainy and humid, reinforcing the need to provide adequate inside ventilation.

The AHU (air handling units) will be rooftop units and will be selected with the necessary outdoor protection, see outdoor assembly. We foresee minimum 3 for the supply air (ASU) and 3 for the exhaust air of the building.

All AHU’s except the AHU for the laboratory will be equipped with a hydroscopic wheel and a by-pass, heating coil, filter section F5 for the extracted air and F7 for the supply air. The AHU’s will also be equipped with noise dampers respecting the Belgium outdoor noise rating impositions in Belgium and the Flanders region.

The hydroscopic wheel 75% will recover heat and humidity from the return side; this will be used to pre-heat and to humidify (in winter season) the intake outdoor air.

The bypass will be used to heat up the building after a weekend or vacation, a switch to 100% fresh air will be made by the BMS system when the school starts and when the building is occupied.

The bypass can also work as an anti-freeze system for the hydroscopic wheel.

The AHU for the laboratory will be equipped with a plate heat exchanger 75%; moisture will not be recuperated.

Fire dampers will be provided in air ducts to maintain fire protection in all partition walls and floors of each fire compartment.

At this moment, there is no smoke exhaust ventilation trap provided at all.

9.6 HVAC Control system – BMS (Building Management System) – Fire panel

The new DDC systems shall be freely programmable. The system shall be connected to the BMS system and shall be able to transfer all data points including the data from the boilers, heating distribution, domestic water supply meter, ventilation conditions, etc.

The BMS System will work in stand-alone. The BMS system will be native ” BACnet”;

the BMS shall have overrides at the room level control.

A fire panel is foreseen at the entrance of the building to give a manual control of the ventilation to the local Fire Brigade.

All ventilations, the boiler room installations and the main gas valve will shut down in case of fire alarm. It shall return automatically to the previous working situation after a fire alarm reset.

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Emergency Shutoff System:

In accordance with UFC 4-010-01 the ventilation system shall have an emergency shutoff sequence with emergency shutoff switches installed every 60. Upon activation of an emergency shutoff switch the DDC system shall shutoff all ventilation systems and close all outside air low leakage dampers.

10. FIRE PROTECTION

10.1 Outside Fire hydrants and Fire Department Connections

The fire hydrants will have DSP couplings based on the standard NBN S 21-019.

The fire department connection will be indicated on the site layout to provide easy access for the fire brigade. The fire department connection shall also be a DSP connection identical to feed the indoor fire hydrants.

A new water connection from gate 9 will be installed to feed the new water loop around the school building and in accordance with UFC 3-600-1 section 3-5.

Each side of the building will be protected with an outside Fire Pole. A second line from gate 9 will be used for the potable water connection to the building.

The sprinkler network of the school building will be connected to the fire loop. The fire loop will be fed by a new fire tank and pump installation (next to the school building).

The underground network in PEHD will also feed the outside fire hydrants connected to the fire loop. The complete firefighting network will be separated from the potable water system. The potable water system will be protected by a disconnector approved by BELGAQUA and will be located in the water room inside the building.

11. SPRINKLER

An assembly of fire pumps will be installed in a technical room next to building 8, to assure water flow and pressure for the firefighting installation of the new school building.

Two underground fire tanks applying NFPA 22 will be placed under the parking lot and under the pump room building.

The fire pumps powered by a diesel motor will be a part of the firefighting installation together with the water supply. The pump intake is connected to a static water source, 2 tanks of 230m³ will be placed under the pump room building and parking lot. The pump provides water flow at a higher pressure to a loop system which connects the outside firefighting system and the sprinkler system risers and hose standpipes. The fire pumps shall be tested by a third-party fire service hired by the contractor and will follow NFPA 20 Standard for the Installation of Stationary Fire Pumps for Fire Protection.

A water loop will be placed around the water tank connected to the loop around the new school building. A connection is to be foreseen on the first loop around the tank to connect firefighting installations in the future.

The fire pumps will be coupled to a diesel engine.

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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12. INSIDE FIRE POSTS

Inside fire posts will be installed in accordance to Belgium regulations.

Each inside fire post consists of a hose reel with semi-rigid hose (length 30 m; DN 25) with fast connection type DSP45, and it is completed by portable : CO2 (5 kg) fire extinguishers (powder class A, B, C – 6 kg), except near electrical equipment where it is completed by CO2 – 5 kg portable fire extinguishers imposed by Belgium regulations.

The inside pipework system shall be made in steel pipe.

13. ELECTRICAL

13.1 High and medium voltage systems

For the new Brussels school a new concrete prefab MV building will be foreseen (identical as the existing ones). This will be equipped with the following MV equipment:

Arrival switch

Primary circuit breaker for transformer

Transformer 630 kVA

Secondary cabinet with LV circuit breaker for transformer circuit breaker for the school and for the site sprinkling system

For the MV connection with the existing MV distribution building a single feeder (3 x PRC mono 95 mm²) will be installed.

For the MV connection to the existing MV building, the following modification will be provided:

New prefab concrete building behind the existing one (smaller, then existing one, next to the ventilation grill in the back of the existing one).

The new prefab building will be equipped with 2 new circuit breakers, 1 for the existing transformer (800 kVA) and one for the new school MV building.

The existing circuit breaker will be recalibrated and used as general circuit breaker, the new circuit breaker will be connected/disconnected from the existing transformer, to this circuit breaker.

The existing MV building will also be equipped with an additional no return (0 Watt, zero power device), to avoid energy flowing back to the public grid.

The existing transformer will be connected to one of the new circuit breaker.

The cable to the new school will be connected to the other new circuit breaker

The equipment used for modifying the existing MV-building shall be identical as the existing one (building and equipment).

For information the existing equipment is installed by DEBA.

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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13.2 Low voltage switch gears

The main distribution panel will be installed in an electrical room in the basement.

The building main distribution panel shall be assembled as upright sheet steel cabinet, degree of protection IP 41, Protection Class 1, with lockable doors and two voltage systems 400/230 V, 50 Hz. The main circuit breakers in the MDP will be “pull out” type (no fixed connections). Cabinet will be type 3b.

The building main distribution panel is equipped with an electronic power and cos measuring device, power transformers, circuit breakers and over voltage protection.

The main distribution panel supplies the sport facilities (including athletic field), the sub-distribution panels, the HVAC distribution panel and the elevators.

The sub-distribution panels will be installed on every floor level (feeding different zones of the building).

The sub-distribution panel shall be assembled as sheet steel wall cabinet, degree of protection IP 41, Protection Class 1, with lockable doors and a voltage system 400/230 V, 50 Hz. This distribution panel supplies all power circuits in the corridors and offices.

The sub-distribution panels are equipped with a main switch, selective main circuit breakers, miniature circuit breakers, remote switches, and ground fault interrupter switches.

13.3 Low voltage distribution systems

With the exception of the outlets in the corridors near doors and for specific purposes, only duplex outlets 16 A, 250 V with grounded contact will be installed.

For most of the rooms, outlets will be partially wall mounted, and partially installed in floor boxes.

The minimum cross section for lighting circuits, small consumers, and control is 1.5 mm², for receptacles circuits 2.5 mm².

Wiring will be accomplished exclusively using halogen-free cables with improved behavior to fire (SA and SD according to AREI). Installation flush-mounted, but surface-mounted in suspended ceilings, on cable trace ways and trays, and technical rooms.

Outlets in wet locations or within 6ft of sinks, and exterior outlets, will be protected by 10 mA RCD's.

14. LIGHTING

14.1 Lighting control system DALI/KNX

All the lighting fixtures (including the exterior lighting) will be equipped with a communication module (Dali) and connected to a bus system (KNX). The system is combined with detectors for presence in classroom and corridors and offices, and day-

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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Page: 21 / 23 light regulation for the lighting fixtures). This system is connected to a PC and will communicate and provide all necessary info about the lighting system, emergency lighting, the submetering system and the blinds.

The KNX system is connected to the BMS (HVAC) system by an OPC server connection (gateway).

The KNX system will also manage the submetering system and the blinds.

In all rooms equipped with motion sensor the light will automatically switch on in case of a fire alarm.

A control panel for the lighting of the Athletic field must be provided and installed in the press box and the field house (see single line diagram DP press box).

14.2 Emergency and Escape Route Lighting

Emergency and escape route lighting consists of single battery light LED fixtures for wall and ceiling installation with a nominal operating time of 1.5 h. Some light fixtures of the general lighting system will also be equipped with single battery back-up light supply units, also for not less than 1-1/2h nominal operating time, to comply with Belgian Safety regulations and NFPA 101 §7.9.2.1 (10.8 lux in staircases). All emergency light fixtures and back-up supply units will be equipped with a communication module, and connected to the KNX.

All signs for evacuation shall be at least 2.4 m above the floor.

15. UPS

The new school will be equipped with an UPS system for the communication equipment installed inside the building in the basement.

The present power estimation is 40 kVA.

The autonomy for the UPS system will be 120 minutes minimal.

The UPS system will be installed in the basement.

16. FIRE ALARM

A central fire alarm panel for the new school will be installed. This system has to be of the brand as the existing system on site, and at the 3-star building (Limotec 2400).

An additional indicator panel and Fire Brigade Service Panel will be installed.

Manual fire alarm units will be installed at all exits. Furthermore, optical smoke detectors will be provided throughout the building.

17. SOLAR PANELS

On the roof a solar panel installation will be installed.

The capacity of the system will be 38 kWp and will be connected to the Main Distribution Panel.

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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The system will consist of the following equipment :

Solar panels

Supporting structure

Cabling between solar panels and MPD

DC/AC inverters

Connection to the MPD

Decoupling relays

18. ELEVATORS

The installation of the elevators will be in compliance with Belgium Laws, all applicable codes, and ABA regulations.

One elevator with the following characteristics will be foreseen:

Type : electrical with no machine room.

Number : 1

Load : 1.150 kg

Speed : 1 m/s

Number of stops : 2

Number of access points : 2

Orientation of access points : on same side

Plant : in shaft upper point

Drive : 3 x 400 V

Lighting voltage : 230 V

Dampers : at bottom of lift well

One platform lift for disabled access will be foreseen in performance area:

Type : double pantograph

Max, travel : 2000 mm with adjustable limit-switch

Rated load, kg : 300 kg

Platform dims : 1500 x 1120 mm

Min H. : 215 mm travel up to 1500 mm

: 255 mm travel > 1500 mm

Pit dimensions : 1530 x 1160 mm

Feeding tension V : 220 single-phase

Auxiliaries tension : 24 VCC

Speed : 2 MT/min

Automatically opening sliding doors made of stainless steel (AISI 304 or equivalent) must be provided for. The doors must be of the F type, complying with NBN 713-020.

The whole of the landing doors meets during at least 30 minutes the "flame resistance” criterion.

J.V. TPF ENGINEERING/CROMWELL - MITCHELL GIURGOLA B/STER8026/DOS/4 / 2 /100% FCD bis/Design A/8026_100%FCDBIS_Project Description-final-D.doc/MAL/dj

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19. KITCHEN

The layout of the kitchen has been conceived in a way to meet European and Belgian hygiene legislation and HACCP.

The goods are delivered on the North side of the building at door EDC-0002.

The goods are taken to the receiving area through the corridor OC28. In the receiving area, they are removed from their secondary packaging and either stored in the refrigerator, in the freezer or stored as a dry product.

The kitchen is divided into a cold kitchen for preparation of sandwiches, cold dishes, and a hot kitchen for preparation of hot dishes.

Students queue up on both sides in the Servery to take and pay for their meals.

The dishwasher is organized so that students place their dirty plates individually at the dishwasher area by means of a kitchen hatch.

Next to the kitchen, there are some general rooms with for example staff lockers, dry storage, a small office.

20. FIXED FURNITURE

The project includes fully equipped laboratories and a fully equipped performance space with stage.

The performance space is designed for theatre /music performances and seminar-style gatherings and will include a fixed stage and fixed seating. The room floor will be sloped to provide the appropriate sight lines. The stage will include overhead fly rigging for equipment and sets.

21. APPENDICE: DRAWINGS

L-01 Overall site

A-02 Ground Floor

A-06 First Floor

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