Prestressed concrete application in bridges in the Hong Kong Airport Core Programme projects

This paper describes the application of prestressed concrete technology to bridges in the Hong Kong Airport Core Programme projects, including the use of internal and external prestressing techniques, integration of precast and in situ construction, the incremental launching construction method, and segmental construction using balanced cantilever and span-by-span methods. Each of the bridge structures uses a unique prestressed concrete technique, and the advantages of using a particular technique are highlighted in the text. These bridges serve as good examples to demonstrate that prestressed concrete techniques can cope extremely well with different and difficult requirements and meet very challenging demands.