基于有限混合单元法的斜拉桥塔端锚固构造应力分析

为研究斜拉索塔端锚固构造在索力作用下的应力分布情况,采用整体计算得到最不利荷载工况,并将产生最大索力的斜拉索对应位置的塔端锚固构造作为分析对象,采用有限混合单元法对某独塔斜拉桥进行了计算分析,得到了索塔钢管壁和钢锚梁各部位的应力情况。

Anchor Structure Stress Analysis of Cable-stayed Bridge Tower End with the Mixed Finite Element Method

To study the stress distribution of cable-stayed bridge tower end anchor structure under the cable force,an integrated design is adopted to make the least favorable load condition.Also,the tower end anchor structure where the stayed cable produces the largest cable force is the analysis target.Computation and analysis are made in one single-tower cable-stayed bridge with the mixed finite element method,to get the stresses of cable tower steel pipe walls and all parts in steel anchor beams.