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对出现病害特征最明显的黄梅龙感湖大桥第22跨右幅桥2号小箱梁进行极限承载力试验,对具有相同病害特征的3号小箱梁按加固设计要求进行结构补强后进行极限承载力试验,分别准确测试加固前后20m小箱梁的极限承载力。探索箱梁在极限承载力破坏模式下的理论和试验依据,为今后旧桥加固提供理论和试验参考。
The ultimate bearing capacity of No.2 box girder of No.22 right bridge of Huangmeilong River in Huangmeilong River with the most obvious disease characteristics was tested. The structural reinforcement of No.3 girder with the same disease characteristics was carried out according to the reinforcement design requirements Ultimate load test, respectively, before and after the exact test reinforcement 20m box girder ultimate bearing capacity. Exploring the theoretical and experimental basis of the box girder in ultimate bearing capacity failure mode, providing theoretical and experimental reference for strengthening the old bridge in the future.