双薄壁高墩横系梁厚度对连续刚构桥地震响应的研究  

Effect of the Thickness of Tie Beam between Double-wall Piers on the Seismic Responses of Continuous Rigid Frame Bridge

作　　者：唐杨 Tang Yang(College of Civil Engineering Chongqing Jiaotong University, 400074,China)

机构地区：[1]重庆交通大学土木工程学院

出　　处：《特种结构》2019年第5期77-82,共6页Special Structures

基　　金：国家自然科学基金(51478071);山区桥梁与隧道工程国家重点实验室培育基地开放基金(CQSLBF-Y16-10)

摘　　要：为了研究横系梁厚度对高墩连续刚构桥地震响应的影响,依托重庆市江津区灵仙河特大桥,通过反应谱法研究了顺桥向地震作用、横桥向地震作用以及竖向地震作用下改变横系梁厚度对地震响应的影响。研究表明在顺桥向地震荷载作用下,连续刚构桥的内力随着横系梁厚度的增加而增加;在横桥向地震荷载作用和竖向地震荷载作用下,横系梁厚度对连续刚构桥的位移和内力影响较小;从连续刚构桥抗震的角度上看,横系梁的厚度不宜过大。In order to study the effect of the thickness of tie beam between double-wall piers on seismic re- sponses of continuous rigid frame bridge the effect of the different thickness of tie beam on the seismic response was studied by the response spectrum method considering the transverse seismic action the longitudinal seismic action and the vertical seismic action based on the Lingxian River Bridge in Jiangjin County Chongqing. The results showed that the internal force of continuous rigid frame bridge increased with the increase of thickness of tie beam under the longitudinal seismic action. The thickness of tie beam had little effect on the displacement and internal force of continuous rigid frame bridge under the transverse seismic action and vertical seismic action. From the perspective of seismic resistance of continuous rigid frame bridges the thickness of tie beam should not be too large.

关 键 词：连续刚构桥 高墩 横系梁厚度 地震响应 反应谱法 

分 类 号：U442.55[建筑科学—桥梁与隧道工程] U448.23[交通运输工程—道路与铁道工程]