浅析某钢管拱桥病害及荷载试验

Analysis of Defects and Load Test of a Steel Tube Arch Bridge

钢管混凝土拱桥作为钢-混凝土组合结构中的一种,充分利用了钢材及混凝土的优点。在钢管拱桥快速发展的同时,部分桥梁也在运行中出现了较多的病害,本文以早期建成的钢管拱桥为研究对象,分析了该类钢管拱桥的常见病害及其成因,并通过现场荷载试验进一步判断其受力状态,为钢管拱桥的检测与养护提供有意义的借鉴。

As one of the steel-concrete composite structures, concrete-filled steel tubular(CFST) arch bridge takes full advantage of steel and concrete. With the rapid development of the steel tube arch bridge, some bridges also appear more diseases in the operation. This paper takes the early built steel tube arch bridge as the research object, analyzes the common diseases and their causes of this kind of steel tube bridge, and further judges its stress state through the field load test, which provides a meaningful reference for the detection and maintenance of the steel tube bridge.