服役20余年的钢管混凝土系杆拱桥吊杆钢丝性能检测研究  

Research on Performance Testing of Steel Wire for Suspension Rod of Steel Tube Concrete Tied Arch Bridge Serving for More than 20 Years

作　　者：王舜 WANG Shun

机构地区：[1]上海市市政公路工程检测有限公司,上海201108

出　　处：《上海公路》2025年第1期80-83,101,M0005,M0006,共7页Shanghai Highways

摘　　要：经过多年使用后,许多钢管混凝土系杆拱桥吊杆出现了不同程度的病害,部分甚至威胁到结构安全。在某拱桥吊杆更换施工后,对吊杆钢丝进行了试验研究,主要针对钢丝力学性能、疲劳性能等。研究结果表明,经过20余年的工作后,钢丝存在局部锈蚀,且疲劳性能也受到了一定影响。After years of use,many concrete-filled steel tube(CFST)tied arch bridges have experienced varying degrees of damage to their suspension rods,some of which even threaten structural safety.After the replacement of the suspension rod of an existing CFST tied arch bridge,experimental research was conducted on the steel wire of the suspension rod,mainly focusing on the mechanical and fatigue properties of the steel wire.The research results indicate that after more than 20 years of work,the steel wire has localized corrosion and its fatigue performance has also been affected to some extent.

关 键 词：系杆拱桥 吊杆 钢丝 疲劳 

分 类 号：U44[建筑科学—桥梁与隧道工程]