【摘要】 以当前高速公路、立交枢纽工程和高架桥中出现较多的公路简支斜交梁桥为工程背景,在回顾斜交梁桥震害特征的基础上,利用多种计算方法(反应谱法、弹性时程分析法和弹塑性时程分析法等),选取跨径为分析参数,进行常遇地震、罕遇地震作用下不同斜度的简支斜交梁桥地震反应分析,得出简支斜交梁桥地震反应随跨径变化的变化特征,可为斜交梁桥的抗震设计提供理论参考。更多还原

【Abstract】 With the simple-supported skew highway girder bridges in the highway and grade separation hub and viaduct background,seismic disasters of the skew bridges are reviewed and manifold count methods are used,including the response method,elasticity analytical method and elastic-plastic etc.The span as the parameter analysis is chosen and the seismic response of the different skew angle simple-supported skew girder bridges with the constant and seldom earthquake effect is analyzed.The character of simple-supported skew girder bridges with the different spans has been educed.It can offer the theoretic gist for the seismic design of skew girder bridges.更多还原