悬索桥主缆检测及承载力评估现状与发展  

Current Situation and Development for Detection and Bearing Capacity Evaluation of Main Cable of Suspension Bridge

作　　者：陈小雨[1] 沈锐利[1] 唐茂林[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《重庆交通大学学报（自然科学版）》2013年第S1期760-763,831,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(51178396)

摘　　要：通过分析悬索桥主缆检测的特点以及主缆各阶段承载力评估的主要因素,详细讨论钢丝腐蚀、断丝以及主缆次应力等对主缆承载力的影响,回顾了现有的承载力评估模型研究现状,提出了基于可靠度方法,综合考虑影响主缆承载力各因素的主缆全寿命期间内承载力评估方法的研究思路。Through analyzing the characteristics of the main cable detection of suspension bridge,and the main factors which affected the carrying capacity of the cable during every stage,a detailed discussion on the influence of steel corrosion,broken wires and the secondary stress on the carrying capacity of the main cable was carried out.Meanwhile,the existing evaluation mode of the main cable bearing capacity was reviewed.Finally,based on the reliability method,a research thought considering the total life cycle and the various factors that affected the bearing capacity of the main cable was proposed.

关 键 词：悬索桥主缆 承载力评估 可靠度方法 钢丝腐蚀 断丝 二次应力 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]