迪那2气田高墩T形刚构桥抗震分析

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英文篇名：Anti-seismic Analysis on High Pier of T-shaped Rigid Frame Bridge in Dina 2 Gas Field 中文刊名：北方交通 英文刊名：Northern Communications 作者：刘文华 ; 孙太石 中文关键词：桥梁抗震 ; 薄壁墩 ; 自振频率 ; 时程分析 ; 地震动 英文关键词：Bridge anti-seismic ; Thin-wall pier ; Natural frequency ; Time history analysis ; Ground motion 出版日期：2011-07-28 机构：华杰工程咨询有限公司;西安地铁有限公司安质处; 年：2011 期：07 出版单位：北方交通

摘要

结合迪那2气田T形刚构桥高墩的抗震时程分析,对比分析了薄壁墩和空心薄壁墩的动力特性及结构在单向激励和三维激励下的抗震性能,分析发现双薄壁墩和空心薄壁墩在截面特性和墩高基本一致的情况下,双薄壁墩较空心薄壁墩包含更多低频自振频率,频率分散,双薄壁墩的抗震性能优于空心薄壁墩。
Combined with the anti-seismic time history analysis on high pier of T-shaped rigid frame bridge in Dina 2 gas field,the anti-seismic performance of dynamic property and structure of a double thin-wall pier and a hollow thin-wall pier under one-way excitation and three-excitation are compared and analyzed.The analysis shows that when the section property and pier height of the double thin-wall pier is almost the same with the hollow thin-wall pier,the former includes more low natural frequency and decentralized frequency than the latter.The anti-seismic performance of the double thin-wall pier is superior to that of the hollow thin-wall pier.

引文

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