The design and construction of two International Finance Centre Hong Kong station

Two International Finance Centre (IFC Tower) due for completion in mid 2003 will be the tallest building in Hong Kong and 5(th) tallest in the world at 420m high. It is located on the harbour front of the Central District, the business centre of Hong Kong. This paper describes the some of the geotechnical design considerations, the structural design development and construction of the tower. Specifically, the paper addresses the large diameter cofferdam solution which was adopted for the foundation; the lateral response of the structure; the issues influencing the floor system; and the detailed design of the megacolumn and outrigger lateral stability system. The paper also addresses construction-led aspects of the design adopted to reduce the construction time of the tower.