更换吊杆后系杆拱桥受力状况评测  

The Evaluation on Stress Condition of Tied-arch Bridge after Replacing Suspender

作　　者：李灿[1] 

机构地区：[1]山西省交通科学研究院,山西太原030006

出　　处：《山西交通科技》2015年第1期58-60,共3页Shanxi Science & Technology of Transportation

摘　　要：近20年来系杆拱桥在我国得到迅速发展,已经成为一种主要的桥型。随着使用期限的增长及近年交通量的增加,部分此类桥梁出现吊杆锚头锈蚀、吊杆钢丝锈蚀等病害。由于养护、检查不到位,导致因吊杆破坏而引起桥梁事故不断见诸报道。对更换吊杆后的某桥进行建模分析,并进行试验测试,将计算结果与试验结果进行对比后,结果表明新吊杆受力合理,应力应变处于弹性范围内,结构整体刚度符合理论值。This paper had modeling analysis of a bridge after replacing suspender and carried on the experiment test. After comparing the calculated results with experimental results, the results showed that the new suspender had reasonable stress, stress and strain was in the elastic range, and structure overall stiffness was in accordance with the theoretical value.

关 键 词：系杆拱桥 吊杆更换 动、静载试验 吊杆内力 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]