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目前常见桥梁结构在桥梁维修加固时对原桥承载力评价研究较少,针对此种情况,本文介绍了某空心板梁桥的荷载试验情况,包括试验内容、试验方法以及测点布置,通过荷载试验结果与有限元分析结果的对比分析,对该桥的整体承载能力进行评价,得出了该桥当前的结构性能和工作状态。结果表明,空间梁格模型能够较为准确地模拟此类桥梁;通过有限元分析和荷载试验相结合的方法能较为全面、正确地评价此类桥梁的承载力,并且能够有效地指导此类桥梁的维修加固。
At present, common bridge structures have little research on the bearing capacity of the original bridge when the bridge is repaired and reinforced. In view of this situation, this paper introduces the load test of a hollow girder bridge, including the test content, test methods and measuring point arrangement, Test results and finite element analysis of the results of the comparative analysis of the overall carrying capacity of the bridge to evaluate the current structure of the bridge obtained the performance and working conditions. The results show that the space beam model can simulate such bridges more accurately. Through the combination of finite element analysis and load test, the bearing capacity of such bridges can be evaluated more comprehensively and correctly, and the bridge can be effectively guided Maintenance reinforcement.