Overall Design of Xi River Bridge in Xikou Town of Tianshui
The main bridge of Xi River Bridge in Xikou Town of Tianshui is a single-pylon double-plane cable-stayed bridge.Its side spans are 45 m+84 m,and its main span is 155 m.Its main pylon is a diamond-shaped reinforced concrete pylon.Its main beam is a prestressed concrete side longitudinal beam.The consolidation system of pylon,beam and pier is used for this bridge.The seismic isolation bearings are set up at the auxiliary pier and the transition pier.The size determination of span arrangement,main girder,main pylon,stayed cable and foundation is expounded in the overall design of the bridge.The valuable engineering experience for the design of single-pylon cable-stayed bridge in high intensity area is provided.
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