桩土作用对连续梁桥抗震性能的影响分析  

Analysis of Seismic Behavior of Continuous Beam Bridge with Pile Soil Interaction

作　　者：胡锐光[1,2] 何敏[1] 郑宗平[1] 王昭阳[1] HU Ruiguang HE Min ZHENG Zongping WANG Zhaoyang(School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei, Anhui 230009, China Anqing Construction Bureau of Key Engineering Project, Anqing, Anhui 246002, China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]安庆市重点工程建设局,安徽安庆246002

出　　处：《公路工程》2017年第1期76-79,共4页Highway Engineering

基　　金：国家自然科学基金资助项目(51308174)

摘　　要：结合工程实例,利用有限元分析软件Midas/civil分别建立了考虑和不考虑桩土作用的两种连续梁桥有限元模型,并对比分析了地震荷载作用下两种模型的动力响应,得出考虑桩土结构相互作用可能会改变结构的振型及次序,并对桥梁抗震有利等结论,对于实际工程中基于性能的抗震设计有一定的借鉴意义。In this paper,two kinds of finite element models of continuous beam bridge that consid- ering and not considering the effect of pile soil interaction are established by using the finite element anal- ysis software Midas/civil, and the responses of the two models are compared and analyzed,and it＇ s drawn that considering the interaction of pile soil structure may change the vibration mode and order of the struc- ture, and is favorable to the earthquake resistance of the bridge. It has certain reference significance for the performance based seismic design in the practical engineering.

关 键 词：桥梁抗震 反应谱法 基于性能抗震设计 桩土作用 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]