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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,在回顾斜交桥震害特征的基础上,利用多种计算方法,包括反应谱法、弹性时程分析法和弹塑性时程分析法等,选取斜度为分析参数,进行常遇地震、罕遇地震作用下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斜度变化的变化特征,可为斜交梁桥的抗震设计提供理论参考。
Based on the current engineering background of highway simply-supported skewed girder bridge in current expressways, interchanges and viaducts, and based on the review of seismic damage characteristics of skewed bridges, various calculation methods including response spectrum method, elastic Time history analysis method and elasto-plastic time history analysis method, the slope is taken as the analysis parameter to analyze the seismic response of a simply supported skew beam bridge under the condition of frequent earthquakes and rare earthquakes. The seismic response of simply supported skew beam bridge With the variation of slope, it can provide theoretical reference for the seismic design of skew beam bridge.