高墩桥梁地震响应分析

近年来,高墩桥梁越来越多地在西部强震地区被采用,并且多采用简支梁桥、连续梁桥和刚构桥。对具有高墩的某桥梁工程进行高墩桥梁抗震性能分析,研究高墩动力特性和地震响应特点。并通过适当的改变结构形式降低桥墩的地震响应,达到较好的减震效果,可为高墩桥梁的建设和抗震设计提供参考。

Analysis of Seismic Response of Bridges with High-Rise Piers

In resent years,bridges with high-rise piers have been built more and more in the west of China where strong earthquake events are active,and most of these bridges are generally designed as simply-supported girder bridges,continuous girder bridges and rigid-framed bridges.In this paper,the seismic performance of a bridge with high-rise piers is analyzed,the dynamic performance of the high-rise piers of the bridge and their seismic response characteristics are studied.By appropriately changing structural forms of the piers for reduction of the seismic response,fairly good seismic mitigation effect has been achieved.The results of analysis and study in the paper may serve as reference to the construction and seismic design of other bridges with high-rise piers.