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| Research on the Design of Bridge in High Intensity Seismic Zone |
| ZHANG Xiao-kun |
| China Railway First Survey & Design Institute Group Ltd., Xi'an, Shanxi 710043, China |
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Abstract Research purposes：In the north suburb of Weinan city, Zhengzhou-Xi'an Passenger Dedicated Line twice crosses the Wei River located in high intensity seismic zone. The line was required to cross the river with large span bridge for reducing the water-blocking area caused by the bridge pier foundation because of the demand of flood protection. Based on the seismic design of the WeinanWei River Bridge on Zhengzhou-Xi'an Passenger Dedicated Line, the introduction is given in this paper to how to determine the main bridge span and connected length of the prestressed concrete continuous beam in high intensity seismic zone in the premise of ensuring the rationality of structure design.
Research conclusions：For how to use a convenient method at the beginning of structure design to determine the span of the bridge in high intensity seismic zone, a useful method is offered in this paper.
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Received: 09 February 2009
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2009, Vol. 26 
