悬臂施工箱梁桥合龙段横向预应力效应分析

Lateralprestressing force effect analysis for the close segment's box girder in cantilever construction

以某大跨径变截面连续梁为例,计算箱梁顶板横向预应力效应,分析相邻节段约束对合龙段顶板受力的影响,提出改善合龙段横向预应力施加效果的相关措施。

Based on a continuous girder bridge,the lateral prestressing force effect of box birder's top slab was calculated,and find out the effect of the adjacent segment's constraint on the close segment.Several relative measures are suggested to improve the effect of lateral prestressing force.