Case Studies

 

Tung Chung Station Development Package One, Site 3

 
Notable Features
 
bullet Application of UPVC column formwork
bullet Use of "Mivan" aluminium formwork
bullet Reuse of aluminium formwork panels
bullet Structural steel temporary sales office
bullet Metal panel site office

Basic Information
 
bullet Location: Tung Chung
bullet Building Type: Residential
bullet Contract Period: 730 calendar days
bullet Gross Floor Area: 99,700m2
bullet Client: Tung Chung Station Development Co., Ltd.
bullet Architect: Anthony Ng Architects Ltd.
bullet Structural Engineer: Maunsell Consultants Asia Ltd.
bullet E&M Consultant: Meinhardt (M&E) Ltd.
bullet Quantity Surveyor: Levett and Bailey Chartered Quantity Surveyors
bullet Main Contractor: Hyundai Engineering & Construction Co., Ltd.
bullet Contract Sum: HK$ 2,278 million

Overview
 
The "Tung Chung Station Development Package One, Site 3" was a residential building project and the following major items were executed under this contract:
 
bullet Superstructure works for five 50 storeys high rise residential blocks
bullet Basement carpark construction
bullet Substructure and superstructure works for club house & attached E&M building
bullet Substructure and superstructure works for retail, low rise carpark & kindergarten
bullet Substructure and superstructure works for open plaza
bullet Construction of linkbridges A & B
 

Aluminium Formwork
 
“Mivan” aluminum formwork was used for typical floors to save the use of timber formwork. The unit rate of timber formwork was HK$ 120-130m2 while the unit rate of aluminium formwork was HK$ 150-160m2. However, aluminium formwork can be reused for over 100 times. For this project it was reported that there was no time and cost effects as compared with conventional formwork system. A 5 day floor cycle was achieved. Aluminium formwork is easier to handle but with more joints.
 

 

 

 

 

Contact of Contractor
 
Hyundai Engineering & Construction Co., Ltd.
Room 3206, 32/F, The center,
99 Queen's Road, Central, Hong Kong
Tel: (852) 2905 1812
 

   
UPVC Column Formwork
 
UPVC column formwork was used to construct the 2500mm diameter large circular columns at the podium floors below the transfer plate. Rid Loc column forms are made by spirally winding a ribbed plastic profile into tube. This enables column forms to be constructed which are strong, light weight, easy to strip and which provide a superior surface finish. The surface also incorporates the inherent ”waxiness” of extruded plastic thus no form oil is required. Square timbers are fixed at the foot of column formwork for stabilisation to stop the formwork moving away from its position. Vertical bracing timbers are used against possible movement while concreting.
 

 
The advantages of UPVC columns are:
 
bullet Light weight – easy to handle
bullet Easy to strip – time efficient
bullet Any size – 150 - 3000mm
bullet Strong – resists rain or chemical damage on site
bullet Smooth – superior off form finish
bullet Adaptable – for oval shapes of beam cut-outs
bullet Cost efficient – over the duration of the complete job
bullet Occupational health & safety – dramatically reduced injury risk
 

 
Because Rib Loc circular column formwork is light. Australia, USA., Japan and Germany have begun substituting conventional timber and steel circular column formwork by the Rib Loc circular formwork since some ten years ago. The Rib Loc circular column formwork was recently introduced to and was well received by Hong Kong builders and developers: It was successfully used in the Government Housing Estate Projects, the Gold Coast and the LRT Sam Shing Interchange Podium projects. The feedback from both management and site personnel was encouraging: the time and cost involved in constructing circular column were significantly reduced.
 

 
The material cost of Rib Loc column formwork ranges from HK$57 per meter for 150mm internal diameter to HK$2661 per meter for 3000mm internal diameter. The transportation cost is HK$650 per trip. These cost data were the price in January 2000
 

Structural Steel Temporary Sales Office
 

Metal Panel Site Office
 

 

Low-Waste Buildings Technologies & Practices
Home