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山区桥梁高墩抗震性能分析及评价 被引量:1

Analysis and Assessment on Seismic Behavior of Bridge Pier in Mountainous Area
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摘要 从工程设计角度出发,对山区典型的桥梁桥墩做了多方面的抗震性能分析。山区桥梁桥墩通常较高,纵向刚度较柔,可从全桥的动力特性分析得出纵向与横向刚度的差异。对于高墩的抗震性能评价,给出了位移延性系数和墩顶位移指标,并进行量化评价,可建立更明确的抗震灾害评估标准。针对山区中常见的薄壁墩和圆柱墩,做了抗震性能对比,分析了抗震设计中的困难,并指出了框架高墩增设墩系梁会引发新的抗震问题,山区高墩墩顶容许位移也会很大,这将增大支座的抗震设计难度。
作者 阳斌 吴徐华 YANG Bin;WU Xuhua
出处 《水电站设计》 2022年第2期27-31,共5页 Design of Hydroelectric Power Station
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