矮塔斜拉桥塔梁同步施工阶段塔梁墩固结部位局部应力分析

Local Stress Analysis of Pier-tower-girder Fixed Segment During the Tower-beam Synchronous Construction Stage of an Extradosed Cable-stayed Bridge

文中以采用塔梁同步施工的新建某矮塔斜拉桥为工程背景,采用有限元软件建立塔梁墩固结部位局部实体分析模型,对桥梁整个塔梁同步施工过程进行模拟,分析重要施工阶段的塔梁墩固结部位局部应力大小及分布规律,并将有限元计算结果与实测数据对比,相互验证计算结果和测试结果的准确性。

Based on the engineering background of a new extradosed cable-stayed bridge with tower-beam synchronous construction,the finite element software is used to establish the local solid analysis model of the tower-beam-pier consolidation segment,and the synchronous construction process of the whole tower beam is simulated.The local stress distribution law of the tower-beam-pier consolidation segment in several important construction stages are analyzed and summarized.Therefore,the finite element calculation results are compared with the measured data to verify the accuracy of the calculation results and the test results.