考虑桩-土作用整体式承台连续刚构桥地震反应分析  

Seismic Response Analysis of Continuous Rigid FrameBridge with Integral Cap Considering Pile-soil Interaction

作　　者：姜有鑫 郭炎峰 JIANG You-xin;Guo Yan-feng(Gansu Province Transportat Planning,Survey&Design Institute Co.,Ltd.,Lanzhou,Gansu 730030,China)

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030

出　　处：《黑龙江交通科技》2022年第6期88-90,共3页Communications Science and Technology Heilongjiang

摘　　要：为分析桩-土作用对整体式承台连续刚构桥的地震反应影响,以国网高速G75兰州段弯沟特大桥主跨(64+115+64)m连续刚构桥为背景,分别建立两种有限元动力分析模型(考虑/不考虑桩-土作用模型),采用时程分析方法,选用3条地震波分别从桥梁纵向及横向进行激励,对比分析了两种模型在线性阶段的反应特点。分析结果可为该类桥梁抗震设计提供一定参考和依据。In order to analyze the influence of pile-soil interaction on the seismic response of integral cap continuous rigid frame bridge,in this paper,with a high intensity zone(64+115+64)m continuous rigid frame bridge as the background,respectively,two finite element dynamic analysis model is established,considering/pile-soil effect is not taken into account,using time history analysis method,choose three bridge seismic wave respectively from the longitudinal and lateral excitation.The reaction characteristics of the two models in the linear stage were compared and analyzed.The analysis results can provide some reference and basis for the seismic design of such bridges.

关 键 词：桩-土作用 整体式承台 连续刚构桥 地震反应 时程分析 

分 类 号：U442[建筑科学—桥梁与隧道工程]