钢管混凝土拱桥吊杆高强钢丝力学试验研究

Mechanical Test Research on High Tensile Steel Wire of Suspender on CFST Arch Bridges

吊杆是中、下承式拱桥的关键构件,研究吊杆的力学行为特征及其病害十分必要和紧迫。通过对营运6年的西南某钢管混凝土拱桥吊杆高强钢丝的单丝极限负荷试验,研究高强钢丝极限负荷的折减状况,探明吊杆的损伤、劣化状况,为钢管混凝土拱桥吊杆的维护提供参考。

Suspender is the key component of of half-through and through arch bridges.The study on mechanical behaviors and diseases of suspender is necessary and critical.This paper studies depreciation of limit load of high tensile steel wire rope through single wire limit load test to the high tensile steel wire rope used on a certain CFST arch bridge in Southwest ern China,which has been putting into service for six years.Also this paper explores the damage and deterioration of suspender and provides reference for maintenance of suspender on CFST arch bridge.