组合—混合梁斜拉桥塔梁固结段研究

The research on the consolidation section of the tower and girder of the composite-hybrid cable-stayed bridge

组合-混合梁斜拉桥塔梁固结处存在钢主梁与桥面板结合、钢主梁与桥塔横梁结合,受力极其复杂。为研究塔梁固结段应力状况及分布,采用ANSYS建立三维有限元模型,对其进行多种最不利工况计算分析,根据应力曲线及应力云图对结构强度进行了评价。

Combination-hybrid beam cable-stayed bridge pylons are combined with steel main girder and bridge deck, steel main girder and bridge pylon beam at the consolidation point, and the stress is extremely complex. In order to study the stress state and distribution of the tower beam consolidation section, ANSYS was used to establish a three-dimensional finite element model, and a variety of the most unfavorable working conditions were calculated and analyzed. The structural strength is evaluated according to the stress curve and the stress nephogram.