双塔双索面混合式叠合梁斜拉桥结构受力分析

Structural Analysis of Composite Beam Cable-stayed Bridge with Two Towers and Two Cable Planes

以某双塔双索面混合式叠合梁斜拉桥为工程背景,简要介绍了桥梁结构形式,并利用有限元软件建立了全桥施工仿真分析模型,分别对施工阶段和运营阶段的钢主梁、边跨混凝土梁、中跨混凝土桥面板、结构刚度进行了有限元力分析,计算结果均满足设计要求,可为类似桥梁设计和施工提供理论依据和实践参考。

Based on the engineering background of a hybrid superimposed girder cable-stayed bridge with two towers and two cable planes,the structural form of the bridge is briefly introduced,and the construction simulation analysis model of the whole bridge is established by using the finite element software.The finite element force analysis is carried out on the steel main beam,side span concrete beam,mid-span concrete bridge panel and structural stiffness in the construction stage and operation stage respectively.The calculation results all meet the design requirements.It can provide theoretical basis and practical reference for similar bridge design and construction.