南宁白沙斜拉索大桥运营期变形监测与分析  

Deformation Monitoring and Analysis of Baisha Cable-Stayed Bridge

作　　者：潘美萍[1] 杜桂荣[1] 李贤德[1] 

机构地区：[1]广西大学土木建筑工程学院,南宁530004

出　　处：《桂林理工大学学报》2010年第3期388-393,共6页Journal of Guilin University of Technology

基　　金：广西教育厅科研项目(200808MS148)

摘　　要：在南宁市白沙斜拉索大桥两端共布设了6个平控点和4个高程控制点,对大桥在空载、静载试验和正常使用状态下进行了变形监测,监测内容包括:塔顶平面位移、塔身倾斜、墩柱和桥面沉降观测、主梁挠度等。监测成果表明:白沙大桥在各种荷载状况下变形值均符合规范和设计文件规定的允许值,桥梁结构稳定,处于弹性变形阶段,符合安全运营要求。There are six plane control points and four vertical control points on both ends of Nanning Baisha bridge in order to monitor the deformation at no load,statistic load test and the normal service loading.The deformation monitoring involves horizontal displacement of tower top,gradient of tower,the settlement of piers and bridge deck and deflection of the main girder.The deformation value is in accordance with the criterion and the design document in the conditions mentioned above.The bridge structure is stable and in the elastic deformation state,satisfied to the safety acquirement.

关 键 词：斜拉索桥 变形监测 沉降观测 平面位移 静载试验 

分 类 号：TU196[建筑科学—建筑理论] U448.27[建筑科学—桥梁与隧道工程]