Higher Colleges of Technology

The main entrance to the college.

The main entrance to the college.

Sheer class!

Some 25 km from Dubai city centre, a major academic village known as Higher Colleges of Technology is taking shape. Gulf Construction looks at the construction of the Dubai Men's College - the first of 20 institutions to be based within this development - which is set for completion this month.

01 November 2003

ANEW college of higher education for thousands of students in Dubai - the first in what is proposed to be a Dubai Academic Village - opened for this academic year.

The Dubai Men's College, part of the Higher Colleges of Technology, will be the first of 20 institutions to be based at the flagship development 25 km from the city centre.

The college campus is located in Al Ruwayyah, off the Dubai-Al Ain highway, within the site of the planned development of Dubai Academic Village and covers an area of more than 400,000 sq m with a built-up area of approximately 50,000 sq m.
The project is being implemented by Dubai Municipality for the benefit of the Higher Colleges of Technology of the Ministry of Higher Education and Scientific Research.

'The project, which is a large complex of various college buildings and facilities, aims to cater to the increasing number of Emarati students who graduate from secondary schools and who wish to continue their college education in various professional fields,' says Nidal Rihani, resident contracts engineer with Dar Al-Handasah (Shair and Partners), the design and construction supervision consultant on the project. 'It will enhance the local professionally-qualified population and serve to achieve the state's goal of social development through increasing local technical skills and create job opportunities in these fields.'

The main contractor is Al Habtoor Engineering Enterprises.
The main contract, valued at Dh111.2 million ($30.3 million), was awarded in April 2002. Work began in May last year and is expected to be completed in mid-November.
'The project has been designed adopting a compact but flexible concept. The design criteria were intended to satisfy client/end-user's present requirements and future expansion. Though originally intended as an in-situ construction, the detailed design lent itself to precast construction enabling the use of precast concrete panels finished with exposed aggregates,' says Rihani.

The campus consists of a main educational complex, sport facilities, car parks, aviation hangar (for training of engineering students), an electro-mechanical plant building, and power substations. It also includes a network of internal roads and bus stops. The site will have a concrete/steel railing boundary wall and gates. Large areas within the campus will be landscaped. Future expansion has also been allowed for within the college boundaries.

The main educational complex is divided into the following blocks:

  • Main entrance and outdoor covered circulation: 5,054 sq m
  • Multi-purpose hall (including a 1,000-seat auditorium): 3,303 sq m
  • Administration and teachers' block: 2,288 sq m
  • Communication technology and teachers' block: 2,288 sq m
  • Learning resources centre and foundation block: 5,730 sq m
  • Engineering block: 8,032 sq m
  • Business block: 8,032 sq m
  • Students' services block: 6,510 sq m

    Some of the buildings such as the engineering, business and foundation blocks are double storeyed while others are of one storey in order to facilitate easy circulation within the complex. The blocks are linked by shaded corridors. This provides continuity of the design concept of the external facades.

    The internal courts of this complex are designed to provide a comfortable environment with planted green areas, fountains and seating areas.
    The sport facilities consist of tennis courts, a multi-use court, a grandstand, swimming pool and squash courts, all located in separate areas and built to international standards to accommodate inter-college tournaments.

    Architectural finishes
    The external finish of the buildings at the main educational complex was carefully selected to blend with the environment and is well suited to the method of construction, which is in precast concrete. The exterior of the wall panels are made with exposed white Omani aggregate laced with sandblasted strips.
    Interior finishes were chosen to suit the function of the various spaces.

    The classrooms are finished with vinyl flooring, acoustical dry partitions, acoustical false ceiling system, a selection of light colours for walls, and special double-glazed soundproofed units.
    The laboratories are finished with special hard flooring, and suitable colours for walls and provided with all necessary services.

    The administration offices are finished with carpet tiles for flooring, frameless glass partitions, a selection of paints for walls and a decorative entrance lobby finished with marble.
    The 1,000-seat auditorium is finished with high- quality sound-abatement materials such as wall-to-wall carpet, insulated wall-cladding panels with decorative fabrics and advanced specially-designed acoustical false ceiling system.

    The main cafeteria, which is located in the student services block and designed to serve more than 600 persons, has high-quality fully-vitrified stoneware tiles on the floor and a selection of paints for the walls.
    The main entrance is finished with patterned granite flooring to provide a suitable grand entrance to the main educational complex.

    Structural systems
    All buildings of the main educational complex are flat roofed except the multi-purpose hall which has a sloped structural steel truss.
    All substructures are reinforced cast in-situ concrete footings and strip foundations. The superstructure of these buildings was originally designed by the consultant for in-situ construction, but was redesigned by the contractor to be constructed with precast elements. This included load-bearing external walls, beams, columns and floor slabs. Some structural elements had to be cast in situ due to design or construction requirements.

    Buildings other than the main educational complex are either of in-situ concrete construction, such as the electro-mechanical plant building, sport facilities, aviation hangar, boundary gates and others, or of combined concrete and steel construction such as the civil engineering shed, bus stops and sun shades on the sport facilities.
    The structural stability of the precast buildings is ensured by cast in-situ structural screed, cast in-situ shear walls in some buildings, and by rigid precast column beam connections to develop frame action in other buildings.

    M&E systems
    Substations:
    The project includes two substations. The first houses five transformers each of 1,500 KVA capacity, five main distribution boards and a standby generator of 400 KVA capacity. The second houses two transformers each of 1,500 KVA capacity, two distribution boards and a standby generator of 250 KVA capacity.

    Panel boards: Sub-main distribution boards, lighting and power panel boards are distributed in all buildings and fed from the two substations. Power shall be supplied by DEWA through 11kV feeders. Part of the power supply to the distribution boards is connected to the non-essential power supplied by the Dubai Electricity and Water Authority (Dewa), other panels are fed from the essential power supply, which is connected to the standby generators such as domestic water pump, sewage pumps, lifts, kitchen cold rooms and freezers, and part of the lighting and power outlets.

    Lighting system: The building lighting systems comprise different types of light fittings. The streetlighting and high-mast poles are distributed on all roads and external areas. External lighting is controlled by photocells and timers.

    The internal lighting is controlled by control panels and push buttons distributed inside each building. This is in addition to the central monitoring on the incoming and outgoing power supply to the main distribution panels and control/monitoring of internal lighting provided by the building management system.
    Dimming systems are provided in some buildings, as necessary.

    Fire detection system: The system consists of a main fire alarm panel and a mimic panel located in the administration building, in addition to three local fire alarm control panels located in the business, engineering and student services blocks.
    The smoke detectors and alarms are distributed in all buildings and connected to the above panels. The system can detect the location and time of fire, and activate the alarm in the required area.

    The public address system's main equipment rack is installed in the administration building, and consists of 15 amplifiers. The public address system speakers are distributed in the corridors and general areas in all buildings. Music and announcements can be broadcast for each building individually, as required.

    The multipurpose hall has a separate sound system.
    Computer and telephone system: The voice and data points are distributed in all buildings and connected by structured cabling to the main network room in the business block and to the 10 secondary network rooms distributed in the other buildings.

    An Emirates Telecommunications Corporation (Etisalat) room is located in the administration building, and is connected to Etisalat main network system.
    Lightning protection system: All buildings are provided with lightning protection systems which consist of horizontal copper tape on the roof of the buildings connected to the earth terminals through down conductors.

    Arm-rising barrier system: Arm rising barriers are provided at the college entrance and exits to control traffic through these gates. The barriers are electrically operated by push button located in the gate control room.
    Lifts: There are four lifts in the engineering and business blocks, two of which have a capacity of 1,000 kg capacity and the other two with 1,600 kg capacity.

    Air conditioning and ventilation: The air-conditioning system consists of a primary circuit and individual secondary circuits inside buildings. The primary circuit consists of five chillers, each of 384 tonnes capacity, six primary pumps (all located on the ground floor of the electro-mechanical plant building) and an underground chilled water network using pre-insulated pipes. Each building is provided with chilled water from the network via a valve chamber. Each building has two secondary pumps (one of which is a standby unit) and air handling units located in the equipment room. The complex is served by a total of 37 air handling units with 351 VAV (variable air volume) units to control the volume of air required for each room.

    Service rooms, electrical rooms and garbage rooms are provided with a total of 32 minisplit units.
    The equipment rooms are provided with 75 fan coil units, which operate with chilled water. The aviation hangar is provided with 2 DX split units with a total capacity of 41 tonnes.
    The main server room in the business block is provided with two close-control DX split-units of 8 tonnes capacity each.

    The ventilation of toilet and storing areas is provided by 85 exhaust fans located on the roofs of buildings.
    The weight of ductwork used in the project is 250 tonnes and the total length of chilled water pipes is 11,400 m.
    Plumbing: The domestic water system consists of an underground water reservoir of 750 cu m capacity, and a packaged pumping unit which consists of three pumps (one of them is a standby) each of 5.75 l/s capacity and 48 m head.

    The pumping unit is located in the basement pump room of the electro-mechanical plant building. Domestic water is distributed through a 2,000-m network of ductile iron pipes. Each building is provided with water through a valve chamber containing a pressure-reducing valve and an isolating valve.

    The sewerage and drainage networks of each building are discharged to an inspection chamber, which is connected to the nearest manhole. All manholes are connected through a 1,350-m network which ends at a septic tank located near the boundary of the college campus.
    The fire fighting system consists of two main fire pumps, one of which is electrically driven and the other is diesel engined.

    Each pump is of 4.7 l/s capacity and 80 m head. A jockey pump of 3.6 l/s capacity is provided to build up pressure in the system. The pumps are located in the basement pump room of the electro-mechanical plant building. A volume of 250 cu m of domestic water is kept as a reserve for fire-fighting and a network of 1,200 m of ductile iron pipes feed the fire-fighting networks of the project.
    Each building is provided with a number of fire hose reel cabinets in addition to a sprinkler system network for assembly areas.

    Each building is also provided with dry risers, landing valves and Siamese connections to serve firemen. A total of 12 fire hydrants are distributed on the internal roads of the campus.
    Electrical rooms are provided with CO2 fire-fighting networks.
    The main server room in the business block is provided with Inergen fire-fighting extinguishers.
    The fire-fighting system is interfaced with the fire alarm system.

    The rainwater drainage system in the buildings consists of roof drains connected to a network of rain water pipes, which in turn is connected to risers discharged free on to the ground. The rainwater collected on the roads is drained through 108 soakaways distributed on the sides of the internal roads.

    Irrigation system: An underground water reservoir of 1,250 cu m capacity, located under the electro-mechanical plant building, is used to feed the irrigation network via a packaged pumping unit located in the basement pump room. The reservoir will be supplied with treated water. The irrigation network system is terminated with automatic sprinkler or valve boxes for manual irrigation. The automatic irrigation system comprises a control panel, a central control unit housed in the electro-mechanical plant building, and a satellite controller. All are interconnected with solenoid valves and control cables.

    The swimming pool is provided directly with water from the project's water supply connection. Before entering the pool, the water is filtered, disinfected and cooled through a heat exchanger connected to the chilled water system.

    The main kitchen in the students' services building is provided with all the necessary services such as electricity, cold and hot water, drainage, and exhaust air duct connected to roof exhaust fans. The kitchen is air-conditioned.
    Fountains: Seven fountains are distributed among the project's buildings. Each fountain has an equipment room containing two water supply pumps (one as a standby unit), chemical feeding unit, filters, a submersible pump and an exhaust fan.

    Building management system (BMS): All electro-mechanical systems are monitored and controlled through the computer control system located in the electromechanical plant building. Operation data and fault information are automatically provided to the computer, which compares them with design data and gives alarms for faults and operates the standby units automatically.

    The BMS system also operates and monitors all mechanical systems according to loads and working conditions and provides hard copy data of COS, operator-initiated action, management reports, graphics and trend records.
    External works & landscaping: Landscaping is generously distributed around the college grounds to provide environmental protection and pleasant surroundings fit for such a facility. It includes paved sidewalks, footpaths and some seating.

    The internal road network connects the various buildings and facilities. The total length of the network is 4,612 m. This network provides easy and fast access to all parts of the campus.
    Three car parks are suitably located within the college grounds to serve the building complex and the sport facilities. The total parking capacity is 1,022 vehicles.

    Bus sheds with a total built-up area of 2,500 sq m have also been provided.
    One main gate and two secondary gates connect the internal road network to the main road system surrounding the college boundaries.




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