Post on 15-Apr-2017
Reading Façade Chep Lap Kok Airport
Guided by Professor Francesca Madeo
Presented by Raymond|Will|Avinash|
1
BACKGROUND
Aviation has been playing an
important role in contributing
to the economic growth of
Hong Kong. Due to the rapid
growing economy in the 90s,
the capacity of Kai Tak Airport
was insufficient for the
soaring demand. Aspired to
transform the city into an
international transportation
hub, Hong Kong Airport
Authority realized that an
airport serving the 21st
century’s needs would be the
necessary admission ticket
and thus conceived a
masterplan for Chep Lap Kok
Airport. Growing out of the
masterplan, the terminal
building was much more than
just arrival and departure
halls, but a collection of
individual buildings that were
connected conveniently
under the same roof.
GLASS WALL
The 1.2 km airport terminal
building was the world's
single largest building.
Sophisticated and
dimensionally precise steel
roof, comprising 129
modules.
Average weight of 130
tonnes and 36m x 36m.
Structural form consisting
of arched vaults.
The assembly yard was set
up in an area 0.5km
northwest of the central
concourse.
Appointment: 1992
Completion: 1998
Area: 516 000m²
Height: 34m
Capacity: 35000000
Client: Hong Kong Airport Authority
Architect : Foster+ Partners
Collaborating Architect: Anthony Ng Architects Ltd. (Ground Transportation Centre only)
Structural Engineer: Ove Arup and Partners/Mott Connell
Quantity Surveyor: WT Partnership
Landscape Architect: Urbis Travers Morgan Ltd.
Lighting Engineer: Fisher Marantz Renfro Stone.
General layout of the airport look like the wing of airplane
QUICK FACTS ROOFING
Departure levels is
surrounded by glass wall.
A series of high bow back
mullions, which varying in
height to a maximum of
23m to support the curtain
wall system.
Weatherproof with good
acoustics.
The glass features a
laminated film sandwiched
between two layers of glass
to reflect the sunlight.
Glass Curtain Wall:
- Curtain Wall System: Stick System
- Max. Structural Span: 36m
- Max. Height :23m
- Subdivided modules size: 3m x 2m
Construction Sequences:
1. Installation of mullions (Front
Chord)
2. Installation of Transoms
3. Installation of pre-assembled glass
panels
17.5mm Laminated Glass
consists of:
- 8mm Grey Tinted Glass
- 1.52mm PVB Interlayer
- 8mm K Glass (Low-E coating)
- Reflective Coating
The Components of Curtain Wall consist of:
- Mullions (120mm x 80mm R.H.S Steel)
- Transoms (120mm x 80mm R.H.S Steel)
- Back Chord ( 114mm C.H.S Steel)
The diagonal Members of the trusses were omitted to
minimize light obstruction.
The “Floating Roof” was design to cater for large
vertical,lateral and thermal movement.
It consists of:
- An armature system with slotted brackets and
spigot
- A pin-ended arm which allows for +-175mm
vertical movement
- A lower sliding joint which allows for
+-120mm horizontal movement
Glass delamination along the edge of the
glass with approximately 300mm were found
during site visit.
Causes of Delamination:
- The PVB Interlayer exposed to air
- The unmatched roller-wave shape of
the glasses
- Low-e coating cause thermal
difference on heating process
- Obsolete PVB used
Glass Balustrade:
- 1.5m vertical span
- Glass supported by two sides only
(one-way)
- 10mm thk. Monolithic tempered
glass
Load Transfer Mechanism:
1. Glass Pane (one-way)
2. Upper and lower transoms
3. Cantilever mullions
4. Concrete Slab
Glass Panes Details:
- Glass connected to adaptor
through structural sealant
- Setting blocks used to support
the dead load of glass
- Backer rod and weather sealant
applied to the joints
- Adaptors connected through
bolts