Archive by Author | stephmendoza

Building Services Design Integration in the Hung Hom Station

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Importance of Building Services

WHAT and WHY do we need the integration of Building Services?

“Imagine yourself in the most fabulous building in the world. Now take away the lighting, heating and ventilation, the lifts and escalators, acoustics, plumbing, power supply and energy management systems, the security and safety systems…and you are left with a cold, dark, uninhabitable shell.

Everything inside a building which makes it safe and comfortable to be in comes under the title of ‘Building services’. A building must do what it was designed to do – not just provide shelter but also be an environment where people can live, work and achieve.”

The Chartered Institution of Building Services Engineer

Building Services therefore include a variety of elements:

  • energy supply – gas , electricity and renewable sources
  • heating and ventilating
  • water , drainage and plumbing
  • daylighting and artificial lighting
  • escalators and lifts
  • communications, telephones and IT networks
  • security and alarm systems
  • fire detection and protection
  • etc.
These services need to be designed in order to work and be maintained appropriately.
The concourse of the Hung Hom Station focuses on the concept of being spacious, creating a lightness, and being Eco-friendly.  Therefore, the design of the building services tend to work to meet these objectives while delivering comfort and safety for the public.
This study is going to focus mainly on the application of the natural and artificial lighting, mechanical ventilation(pods system), circulation system(escalators/lifts) – all of which creates better service and convenience to the public while promoting low carbon emission.

PODS System

PODS – Brings a set of services in a building together, allowing the rest of the space to open up. Having pods also liberate the roof area. (enforces the lightness of the roof and creates good visual aesthetics)

For the concourse of the Hung Hom Station, there are 2 main pods located at the center. Around these pods are the retail shops.

This system is highlighted in red.

Includes: Lighting, fresh air supply ducts, signage systems and fire-control points

Other examples of pods from Norman Foster’s buildings

Hong Kong International Airport, Chep Lap Kok

Located at regular intervals around the building

Includes: fresh air supply ducts, lighting, fire-control points and information and signage systems. Factory made components clip on to an in-situ steel subframe.

Stansted Airport, England

Located within the ‘trunks’ of each Stansted’s structural ‘trees’.

Includes:  Graphic aids for passenger orientation, fresh air supply ducts, up-lighters, fire alarms, and emergency telephones.

Hong Kong Shanghai Bank (HSBC), Central

Includes:  Lavatories and local air-handling plant.

Lighting

Lighting System – natural lighting & artificial lighting.

The concourse of the  Hung Hom Station is designed with having glazed facade at the north, south and east direction and roof skylights, allowing natural light to enter the building.  Having this daylight reduces the requirement for artificial lighting and minimize energy consumption.

  • NATURAL LIGHTING
photograph showing the brightly lit interior
Open floor plan with light entering in 3 directions
Roof & Facade openings
  • ARTIFICIAL LIGHTING
Photograph showing the light system at night
2 main types of fixtures for the Hung Hom Station concourse – applied in the roof. (re-enforce the free floor planning)
Fixture type 1 – Recessed Lighting
Fixture Type 2 – Cove Lighting
Fixture Type Advantages Disadvantages
Recessed With the small size, it does not invade the space.Wiring can be hidden in the ceilingIt is daylight responsive = saves electricity. The spread is limitedMay produce some glare effectCan be difficult to access during maintenance in ceiling
Cove Lighting Energy savingReflected light bouncing off the ceiling, creates an evenly light space.Lamps and wiring are concealed = visually pleasing Can be difficult to access during maintenance in ceiling

Visual Performance & Lighting Psychology

The cove lights reflecting through the curved roof re-enforces the spaciousness in the interior. Creates a good ambience with its fading effect.

The recessed and cove lighting also creates visual clarity with its bright, uniform pattern combining with the bright colour of the interior roof/floor space.


Norman Foster’s green agenda

I would like to begin my research on Foster’s agenda to know more about where his designs are coming from – using technology to design sustainable buildings.

This idea also has a connection to building services, and the way that they are designed in the Hung Hom Station (which would be explored in the later stage)

Stage 2 – Building Services Design Integration (REVISED)

1 Basic Understanding of Building Services

  • What & why do we need the integration of Building Services?
  • Types of Services in Commercial buildings
  • Roles of different people – architects, contractors, consultants, specialist during the process to achieve the best result.

2 Design Strategies of Building Services (Hung Hom Station)

  •  Concept of Hung Hom Station in relation to eco-friendly design
  • Concerns / constraints
  • Applications: (Plans, Sections & diagrams)
    • Lighting (natural & artificial)
    • HVAC
    • Fire Protection (Staircase/Detectors/Fire-safety doors)
    • Physical Security (CCTV/Access Control)

3 Concept of passive & active building energy – Detailed Study (Hung Hom Station)

  • Lighting
    • Lighting System – passive & active
    • Daylight vs. Electric Light
    • Visual Performance
    • Maintenance
    • Pros & Cons
  • HVAC
    • HVAC system – passive & active
    • Reduction of HVAC with building envelope & lighting strategy
    • Aesthetic Value
    • Maintenance
    • Pros & Cons

4 Conclusion

  • Technological trends that Foster applies in his buildings
  • Adv/disadv/issues/success of Hung Hom Station Building Services
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