bridge superstructure
1.The Gaoji Strait Bridge in Xiamen(Amoy)adopts a superstructure of continuous prestressed concrete box girders with equal spans of 45m each and the stepping formwork construction method.
2.The Hau Hoi Wan Bridge on Hongkong-Shenzhen Western Corridor is a single pylon,single cable plane cable-stayed bridge totaling 460 m in length and the superstructure of the Bridge is designed as a steel box girder structure composed of 22 girder blocks.
5.The Chindwin River Bridge is for the use of both highway and railway with superstructure of continuous steel trusses, and the main span is 112 m.
6.The spring elements are adopted to simulate the link between the bridge foundation and soil, and the longitudinal restraint of tracks on the superstructure of bridges.
7.Because the balancing cantilever segmental construction method has been widely applied in the building of long-span continuous rigid frame bridge, it is necessary to execute a construction control effectively to ensure the structural safety, successful closure of a span and the ideal alignment of superstructure during and after erection of the bridge.
