特大跨连续刚构桥钢混接头有限元分析

On analysis of steel-concrete transition section at supper-large span continuous steel bridge

以重庆长江大桥复线桥为工程实例,利用有限元软件ANSYS建立钢—混凝土接头的局部三维有限元模型,对接头各部件的应力分布情况进行了分析,进而进行接头部位的受力机理研究,以优化接头受力性能,达到最佳受力效果。

Taking the double-line bridge of Changjiang Bridge at Chongqing as the example, the paper adopts the finite element software AN- SYS, to. establish the partial three-dimension finite element model of the steel-concrete transition section, analyzes the stress distribution of all parts of the connection, undertakes the stress mechanism research on the connection parts, so as to achieve the optimized stress effect by impro- ving the connector＇ s stress performance.