岳阳洞庭湖大桥斜拉桥索塔变形观测方  

The Deformation Observation Method of the Three Main Suspended Towers of Yueyang Dongting Bridge

作　　者：杨恒山[1] 贺国宏[2] 

机构地区：[1]岳阳师范学院土建系,湖南岳阳414000 [2]长沙交通学院路桥系,湖南长沙410076

出　　处：《测绘学院学报》2001年第1期24-28,共5页Journal of Institute of Surveying and Mapping

摘　　要：对岳阳洞庭湖大桥三塔斜拉桥三塔的位移和扭转变形 ,提出了布网方案、观测方法和计算方法 ;按相关平差的理论严密估算了变形观测的精度 ;This paper puts forth an observation and a calculation method about the horizontal displacement and torsion deformation of Yueyang Dongting Bridge's main suspended towers and strictly estimated the observation accuracy of deformation with the theory of the correlated adjustment. Therefore, it draws an important conclusion which is helpful to the deformation observation to come.

关 键 词：索塔变形 扭转变形 变形观测 精度估度 布网方案 斜拉桥 位移变形 

分 类 号：U442[建筑科学—桥梁与隧道工程]