桥梁上部结构梁体滑移分析及处治方案设计

Slide Analysis and Treatment Scheme Design of Bridge Superstructure Beam

随着桥梁使用年限的增加,各种荷载组合作用以及施工过程中的误差,导致部分桥梁出现不同程度的损伤和病害。本文结合某多跨预应力混凝土连续T梁桥的工程案例,分析该桥出现梁体滑移的主要原因,并通过建立有限元模型进行桩柱结构受力验算,针对桥梁不同部位的病害提出有效的处治措施,从而保证桥梁的正常运营,为今后其他桥梁维修加固提供参考依据。

With the increasing service life of the bridges,various load combinations and errors during construction lead to different degrees of damage and diseases in some bridges.Based on the engineering case of a multi-span pre-stressed concrete continuous T-beam bridge,the main reasons of the beam slippage are analyzed,and the finite element model is established to check the stress of pile-column structure,and puts forward effective treatment measures for the diseases of different parts of the bridge,so as to ensure the normal operation of the bridge and provides reference for the maintenance and reinforcement of other bridges in the future.