两跨连续斜交梁桥地震响应的参数分析  

Parameter analysis on seismic response of two-span continuous skew girder bridge

作　　者：许永吉[1] 卓卫东[1] 孙颖[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《南昌大学学报（工科版）》2015年第4期347-354,共8页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学青年基金资助项目(51208112)

摘　　要：基于一个系列共9个1/5缩尺两跨连续普通钢筋混凝土斜交梁桥模型振动台试验,分别建立与试验相同的9个有限元模型,对有限元模型进行单向和双向地震动输入下结构的地震反应分析,研究斜交梁桥的地震响应及震害特点,并且和试验结果进行对比。分析结果表明:桥面板左端的加速度地震响应和左端位移响应有限元计算结果和试验结果吻合良好,验证了有限元模型的准确性和有效性。Nine finite element models were established at the same of the experiment,which were basing on the shaking table experiment of the total of nine with 1 /5 scale models of two-span continuous skewed girder bridge. The seismic response rules and destroy characteristic of two span continuous skew girder bridge with a single direction and two way dimensional seismic wave input was studied. The results were compared with the experimental results.Analysis results showed that the finite element calculation results and the test results were in good agreement about the acceleration seismic response and the displacement response of the left end of the deck,which proved the effectiveness and accuracy of finite element model.

关 键 词：两跨斜交梁桥 有限元模拟 地震响应分析 振动台试验 对比分析 

分 类 号：U448.212[建筑科学—桥梁与隧道工程]