大跨度矮塔斜拉桥塔梁墩固结处局部应力分析

Local Stress Analysis of Large-span Extra-dosed Cable-stayed Bridge at Tower-beampier Consolidation Place

文章以某高速公路上一座主跨270m的矮塔斜拉桥为例,运用有限元分析软件Ansys建立塔梁墩固结处局部实体模型,分析塔梁墩固结处主梁、索塔桥墩以及墩底的应力分布情况,为结构设计提供依据。

With an extra-dosed cable-stayed bridge with the main span of 270 m in an expressway as the example,this article established the local physical model at towar-bearn-pier consolidation place by using the finite element analysis software Ansys, and analyzed the stress distribution situation of main beam,cable-tower piers and pier bottom at tower-beam-pier consolidation place,thereby providing the basis for the structural design.