基于静力荷载试验的海印桥承载能力评价研究

Research on the Evaluation of Carrying Capacity of a Cable-stayed Bridge Based on Static Load Test

对桥梁进行检测是确保桥梁安全性的有效手段。本文对局部维修后的主跨175 m跨径的双塔斜拉桥——海印桥实施静力荷载试验,测试静载工况下的桥梁变形,综合分析桥梁在设计荷载下的工作性能,试验结果表明,测试桥跨主体结构在设计荷载作用下,桥跨结构受力合理,具有良好的刚度与强度,其承载能力满足设计和规范要求。

Bridge detection is an effective way to ensure the safety of the bridge. The static load test is carried out on the 175m span double-tower and cable-stayed Haiyin Bridge in this paper, which has been just partial repaired. The deformation of the bridge is measured and analyzed. The experimental results indicate that the tested bridge span structure has enough stiffness and strength and the stress distribution is within reasonable range. As a result, the carrying capacity of the reparied bridge still accords with the design and specifications.