某山区长弯桥病害分析及加固方案探讨

Discussions on Disease Analysis and Reinforcement Programme of A Moun-tain Long Curved Bridge

山区公路桥梁由于地形复杂、昼夜温差大、管养不利等因素,容易造成严重病害,尤其是混凝土弯梁桥,在自重、温度及离心力等荷载作用下,梁体容易向外侧移动。文章以某山区长弯桥为例,通过对其支座脱空、梁体横向偏移及开裂等典型病害的调查,分析了病害产生的原因,并提出了相应的加固处治措施。

Due to the complex terrain,large temperature difference between day and night,poor maintenance and other factors,the bridge in mountainous highway is likely to cause serious diseases,especially the concrete curved bridge,its beam tends to move toward the outside under the load effect of its own weight,temperature and centrifugal force.Taking a mountain long curved bridge as the example,through the investigation on its bearing void,lateral beam shift and cracking and other typical diseases,this article analyzed the generation causes of these diseases,and proposed the corresponding rein-forcement treatment measures.