双肢薄壁高墩大跨度连续刚构桥抗震性能分析  

Seismic Performance Analysis of Long-span Continuous Rigid Frame Bridge with Two-limb Thin-walled High Pier

作　　者：夏彬 戚中洋 XIA Bin;QI Zhongyang(China Highway Engineering Consulting Group Co.,Ltd.,Beijing 100195,China;China Consulting Huake Transportation Construction Technology Co.,Ltd.,Beijing 100195,China)

机构地区：[1]中国公路工程咨询集团有限公司,北京100195 [2]中咨华科交通建设技术有限公司,北京100195

出　　处：《交通节能与环保》2020年第2期140-144,共5页Transport Energy Conservation & Environmental Protection

摘　　要：大跨度高墩连续刚构桥是跨越深山沟或江河的一种广泛的结构形式,其地震作用下的响应与中小跨径混凝土梁桥有所不同,本文以福建省沈海复线福鼎贯岭至柘荣段桐山溪特大桥(104+200+104 m)为工程背景,采用有限元分析软件Midas/civil构建有限元模型,进行结构特征值分析及地震作用下的反应谱分析,得到桥梁在地震作用下的动力响应,并研究了双肢薄壁墩墩间联系梁对大跨度连续刚构桥抗震性能的影响。Long-span high-pier continuous rigid-frame bridges are a wide range of structural forms that span deep trenches or rivers.The response to earthquakes is different from that of small-and medium-span concrete beam bridges.The Tongshanxi Bridge(104+200+104)m from Guanling to Zherong was used as the engineering background.The finite element analysis software Midas/civil was used to construct the finite element model.The structural eigenvalue analysis and the response spectrum analysis under the action of earthquake were used to obtain the bridge.The dynamic response under the action of earthquakes,and the effect of connecting beams between thin-walled piers on the seismic performance of long-span continuous rigid frame bridges was studied.

关 键 词：连续刚构桥 双肢薄壁墩 反应谱 抗震性能 有限元分析 

分 类 号：U448.21[建筑科学—桥梁与隧道工程]