methods+materials speaker - bang ting “bt” tan (ykk ap facade, singapore), facades+ nyc 2016
Post on 29-Jul-2016
225 Views
Preview:
DESCRIPTION
TRANSCRIPT
1
BT Tan YKK AP FACADE PTE. LTD.
New York April 21, 2016
Facade Retrofitting Method with an inverted drainage system
2
High Street Centre Singapore
Built: 1974 Usage: Commercial Office Floors: 31 (7 story podium and 24
story tower) Height: 400 ft. (122m) Owner: Management Corporation
Strata Title
Surrounded by notable government buildings including the Parliament House and the High Court.
3
Work Challenges: • Business as usual for existing tenants • Safety of workers, tenants and the public • Minimum disruption and noise • Full weather-tightness during construction
Before
During
1. Remove existing tower facade entirely. 2. Install new Unitized Curtain Wall System. 3. Extend roof crown 70 ft height.
Project Scope
4
A Retrofitting Method Solution
5
Comparison: Unitized Curtain Wall Drainage Systems
INVERTED Splice Plate
Conventional Unitized Bottom-up System
Conventional Splice Plate
Although a totally opposite installation method, the inverted splice plate performs and functions as a conventional system.
Innovative Unitized Top-Down System
6
Top-Down Bottom-up
Advantages of the Top-Down vs. Bottom Up Retrofit Method
7
4 floors at each period of time
Duration affecting tenant: 21 days
3 days
3 days
3 days
12 days 3 days
3 days
3 days
3 days
12 days
9 days
Duration affecting tenant: 33 days
6 floors at each period of time
1
2
3
4
5
6
1
2
3
4
Activity cycle turnaround time
Day
wor
k N
ight
wor
k Bottom-Up Method vs. Top-Down Method
Day w
ork N
ight work
Shorter
8
1
2
3
4 1
2
3
4
5
6
Less exposure to weather
Day
wor
k N
ight
wor
k Bottom-Up Method vs. Top-Down Method
Day w
ork N
ight work
Additional temporary rain screen barrier
9
1
2
3
4 1
2
3
4
5
6
Reduced risk of falling debris
Demolition BELOW
new cladding
Demolition ABOVE
new cladding
RISK!
Day
wor
k N
ight
wor
k Bottom-Up Method vs. Top-Down Method
Day w
ork N
ight work
10
1
2
3
4 1
2
3
4
5
6
TIME Shorter installation turn around time
Less exposure to weather
COST
SAFETY
Less temporary protection and cleaning
Additional safety
platform
Additional heavy duty protection
screen
Additional temporary rain screen
barrier
Day
wor
k N
ight
wor
k Bottom-Up Method vs. Top-Down Method
Day w
ork N
ight work
Reduced risk of falling debris
11
Mth 4 Mth 5 Mth 6 Mth 7 Mth 8
Mth 9 Mth 10 Mth 11
Mth 1
TOP-DOWN METHOD: Monthly Progress Pictures
Mth 14
12
Before and After: Internal
13
• Aged building - Precondition survey ü No proper as built record ü Structure strength
• Occupied building - Operational constraints ü Working hours ü Noise ü Safety ü Security ü Interfacing finishes
• Facade specialist - General contractor role ü Liaison with authority ü Total project management
Contractor Assumes All
Risk!
Why Facade Retrofitting Method Matters:
14
www.ykkapfacade.com
tanbt@ykkapfacade.com
YKK AP FACADE PTE. LTD. Headquartered in Singapore, YKK AP FACADE Pte. Ltd. specializes in architectural building facade projects throughout Asia.
THANK YOU!
CapitaGreen Building Ito Toyo
Reflections Studio Daniel Libeskind
South Beach Foster & Partners
Gardens by the Bay Wilkinson Eyre
Recent projects:
top related