摘要
重庆朝天门长江大桥主跨桁拱施工采用拱上爬行吊机悬臂吊装法,期间辅助以大型斜拉扣挂系统。通过建立空间有限元模型,对其施工过程进行理论分析。从理论分析、实测数据、实际施工操作三方面综合分析了朝天门长江大桥扣索初张力的控制,并对施工中各个工况下的索力实测数据进行了分析。
During the construction of Chaotianmen Yangtze River Bridge, a hoisting cantilever crane machine on the truss arch was used, assisted by a major cable-stayed system in the process. By using a space finite element model, analysis of the construction of Chaotianmen Yangtze River Bridge was accomplished. From three perspective： the theoretical analysis,the measured data and the construction operation, a comprehensive analysis of initial tension was carried on. Also the analysis of these measured data was given.
出处
《交通科技》
2009年第1期15-18,共4页
Transportation Science & Technology
关键词
朝天门长江大桥
扣索索力
动测法
有限元分析
初张力
chaotianmen Yangtze River bridge
finite element analysis
cable force
initial tension
