支座安装误差对结构受力的影响分析

Analysis of Influence of Mounting Error of Support on Structural Stress

巴珠铁路巴嘎吉林郭勒特大桥,上部结构为19跨32 m简支T形梁,单线非电气化铁路。在交工验收中发现,支座垫石高程不满足设计要求,同一桥墩左右垫石高程都存在差异,最大达2.4 cm。为此建立有限元模型,针对这一问题对结构受力的影响进行了分析,提出了处治建议,可供同类结构病害的处治参考。

The upper structure of the Ba GA Jilin bridge in the Ba Zhu railway is the 19 span 32m simply supported T beam and the single line non electrified railway. In the acceptance check, it is found that the height of the support pads does not meet the design requirements, and there is a difference between the height of the left and right sides of the same pier, up to 2.4 cm. The finite element model is established, and the influence of the problem on the structural stress is analyzed, and the treatment suggestions are put forward for reference for the treatment of similar structures.