广西某大型斜拉桥静载试验监测与分析  

Monitoring and Analysis in Static Load Test of the Guangxi Large Cable-stayed Bridge

作　　者：潘美萍[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004

出　　处：《地矿测绘》2010年第3期4-7,共4页Surveying and Mapping of Geology and Mineral Resources

基　　金：广西教育厅科研项目"基于灰色理论的建筑物变形分析研究"(200808MS148)

摘　　要：为了评定斜拉桥的安全性能与承载能力,应对桥梁进行静载试验检测。基于此,以广西某大型斜拉桥为例,介绍了静载试验中,观测点的布置与观测方法,并根据监测结果分析各种加载工况下的主梁挠曲、主塔塔顶变位、索力变化以及控制截面的应力变化规律。试验结果表明,该桥的结构受力合理,强度、刚度性能均满足设计要求,在试验荷载作用下处于弹性工作状态,能满足日常安全营运要求。In order to assess the safety performance of the cable-stayed bridge with the bearing capacity of the static and dynamic load test, this paper mainly introduces the static load test, decorate and observation, and according to the monitoring results, analysis of the loading conditions of torsion deflection of girder overhead, cable, and the stress varia- tion control section. Test results show that the structure is reasonable, bridge stiffness and strength properties can meet the design demands in the test loads in flexible working condition, and can satisfy the daily safe operation requirements.

关 键 词：斜拉桥 静载试验 位移观测 应力 挠度 工况 

分 类 号：TU196[建筑科学—建筑理论] U448[建筑科学—桥梁与隧道工程]