株洲建宁大桥施工阶段主梁截面应力监控  

The stress monitoring of the main beam section of Jianning Bridge in Zhuzhou while being constructed

作　　者：王星海[1] 张玉平[1] 李传习[1] 

机构地区：[1]长沙理工大学桥梁与结构工程学院,湖南长沙410076

出　　处：《长沙理工大学学报（自然科学版）》2007年第2期42-44,共3页Journal of Changsha University of Science and Technology:Natural Science

摘　　要：以株洲建宁大桥为背景,建立了平面杆系计算模型,运用平面结构分析程序进行静力分析,得出施工过程中最不利荷载组合下主梁截面最大压应力出现的位置.在此位置埋入振弦式应变计对其应力进行监测,对测得的数据进行多种方法处理,取得了较好的效果.The concrete stress monitoring plays an important role while the cable-stayed bridge is being constructed. Based on the monitoring data of the Jianning Bridge in Zhuzhou,this paper has set up the plane bar calculation model to do the static analysis by the plane structural analysis program. The position of the biggest compressive stress in the main beam section during the construction process has been obtained, and then the vibrational chord strain gauges have been embedded in this position to monitor the concrete stress. Some different methods have been adopted to process the data,and a reasonable result has been obtained.

关 键 词：斜拉桥 振弦式应变计 应力监测 数据处理 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]