摘要
针对某异形刚架桥梁的抗震性能进行了计算分析。通过建立三维杆系有限元模型,采用反应谱方法,计算得到该桥在E1、E2地震作用下的结构响应,从而对下部结构中桥墩立柱以及钻孔灌注桩的截面强度进行验算,并验算其桩基承载力。最终该桥各项验算指标通过相应的规范要求,表明了此种异形大跨桥梁较佳的抗震性能。
In this paper,the seismic performance of a secial shaped rigid frame bridge is calculated and analyzed.The structural response of the bridge under E1 and E2 carthquake is calculated by establishing a three-dimensional finite element model of the rod-system and using the response spetrum method.The strength of the bored pile and the pier columnn in the lower structure is checked,and the bearing capacity of the pile foundation is checked.Finally,the bridge checking indicators meet the corresponding specifcation requirements,indicating a quality seismic performance of this special-shaped long-span bridge.
作者
程路超
CHENG Lu-chao(Shanghai Urban Construction Design and Research Institute,Shanghai 200125,China)
出处
《工程建设与设计》
2023年第11期94-96,共3页
Construction & Design for Engineering
基金
上海市城市建设设计研究总院(集团)有限公司科研项目(科CK2020044A)。
关键词
异形刚架桥
抗震性能分析
工程应用
special-shaped rigid frame bridge
seismic performance analysis
engineering application
