钢管混凝土系杆拱桥索力检测及吊杆失效影响分析  

Tension detection of suspension rods in steel-concrete tied arch bridges andanalysis of the impact of suspension rod failure

作　　者：洪桂忠 HONG Guizhong

机构地区：[1]泉州市市政工程中心,福建泉州362000

出　　处：《福建建设科技》2024年第6期109-111,119,共4页Fujian Construction Science & Technology

摘　　要：为分析钢管混凝土系杆拱桥索力变化带来的影响,在历史索力检测数据的基础上,分析桥梁运营期间,索力偏差变动情况。基于桥梁更换吊杆的工程记录,讨论了不同吊杆失效工况下对桥梁结构响应参数的影响程度。结果表明:在钢管混凝土系杆拱桥日常养护中,应该重点关注索力、桥面线形变化情况。当吊杆出现失效情况后,及时进行更换,避免造成安全事故。In order to analyze the impact of cable force changes on steel reinforced concrete tied arch bridges,based on historical cable force detection data,the variation of cable force deviation during bridge operation was analyzed.Based on the engineering records of bridge replacement of suspension rods,the impact of different suspension rod failure conditions on the response parameters of bridge structures was discussed.The results indicate that in the daily maintenance of steel-concrete tied arch bridges,special attention should be paid to changes in cable tension and bridge deck alignment.When the suspension rod fails,timely replacement work should be carried out to avoid safety accidents.

关 键 词：系杆拱桥 索力检测 吊杆失效 养护 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]