摘要
以高赞大桥牵索挂篮施工为背景,介绍了如何把挂篮与主桥结构耦合在一起进行有限元分析的方法,并将分析结果与挂篮单独分析的结果进行比较,最后根据比较的结果提出了对该挂篮设计方案的评价与建议.仿真分析的结果表明:高赞大桥挂篮支点的约束接近于刚性支承约束;挂篮应力的计算结果可采用挂篮单独模型下的应力计算结果;主梁对挂篮的支座锚固点局部应力未超限。
According to the guy cradle c and main bridge structure is introduced. Th gestions are presented. The simulation re onstruction of Gaozan Bridge, the Finite Element Method combining cradle e result is compared with analysis of cradle. The design schemes and sug- suits show that the constraint of cradle pivot of Gaozan Bridge is similar to rigid constraint. The calculation of cradle stress depends on the results under separate cradle models. The local stress of main beam on cradle pivot is not over limitation
出处
《筑路机械与施工机械化》
北大核心
2008年第2期67-70,73,共5页
Road Machinery & Construction Mechanization
关键词
仿真分析
挂篮
悬臂浇注
有限元模型
simulation analysis
cradle
cantilever casting
finite element model
