整体式桥台曲线梁桥抗震性能研究  

Seismic Performance Research of Integral Abutment Curved Girder Bridge

作　　者：韦有波[1] WEI Youbo(The 2th Engineering Co.,Ltd of the 18th China Railway Construction Bureau,Tangshan 063000,Hebei,China)

机构地区：[1]中铁十八局集团第二工程有限公司,河北唐山063000

出　　处：《天津城建大学学报》2016年第4期265-268,共4页Journal of Tianjin Chengjian University

基　　金：住建部科学技术项目(2015-K3-021);天津市自然科学基金项目(13JCYBJC19600);天津市交通运输委员会科技项目(2014-23)

摘　　要：以某匝道桥为研究对象,基于ANSYS软件建立1∶1的三维有限元模型,研究在地震力作用下,整体式桥台曲线梁桥各部位的加速度动力响应,得到结论:在罕遇地震下整体式桥台曲线梁桥的加速度放大系数较多遇地震时大;支座刚度选取的合理性,保证了下部结构与上部结构之间良好的联动性.With a ramp bridge as the research object,this research establishes a three-dimensional finite element model of 1:1 based on the ANSYS software.It researches the dynamic response of each part of the curve of integral abutment bridge to seismic acceleration.The results show that under rare earthquake,the acceleration amplification factor of integral abutment curve is greater than frequent earthquake,and the appropriate support stiffness can ensure the linkage between the substructure and superstructure,providing a certain reference value to relevant research.

关 键 词：整体式桥台 曲线梁桥 有限元方法 土-结构相互作用 地震加速度 

分 类 号：U443.21[建筑科学—桥梁与隧道工程]