摘要
以上承式四肋钢管混凝土拱桥为工程依托,利用通用有限元程序MIDAS/Civil,建立桥梁的空间有限元模型,对桥梁成桥状态和主要施工阶段的失稳模态和稳定安全系数进行计算,对其失稳特征进行分析。
To a bearing type four ribs on the concrete filled steel tubular arch bridge as an engineering, using the general finite element program MIDAS/Civil, this paper builds the space finite element model of bridge and the bridge as a bridge state and the main construction phase of the buckling mode and stability safety factor calculation, to analyze the buckling characteristic.
关键词
钢管混凝土拱桥
有限元模型
稳定性分析
成桥状态
施工阶段
oncrete-filled steel tubular arch bridge
finite element model
stability
finished bridge
construction stage
