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本文通过对某运营近40年的双曲拱桥的外观检查、混凝土强度和碳化深度检测及现场结构静动载试验,从桥梁结构外观现状、现有混凝土强度、结构在静动力荷载作用下的变形和受力特性等诸方面分析了该桥目前的实际工作状态.并作了较为全面的性能评估,研究成果可为该桥的今后运营管理及检修提供参考。
In this paper, the appearance inspection, the concrete strength and carbonation depth test and the static and dynamic load test of on-site structure of a double-curved arch bridge with operation for nearly 40 years are carried out. From the appearance of the bridge structure, the existing concrete strength and deformation of the structure under static and dynamic loads And force characteristics of the bridge and other aspects of the actual analysis of the current state of the bridge and made a more comprehensive performance assessment, the research results for the future operation of the bridge management and maintenance reference.