大跨度下承式钢管混凝土系杆拱桥支架设计及有限元分析  

Bracket Design and Finite Element Analysis of Long Span Through CFST Tied Arch Bridge

作　　者：赵庆贺 Zhao Qinghe(Yantai University,Yantai 264003,Shandong,China)

机构地区：[1]烟台大学,山东烟台264003

出　　处：《工程与试验》2020年第3期83-85,共3页Engineering and Test

摘　　要：介绍了新建铁路赣州至深圳凤凰互通特大桥128m下承式钢管混凝土系杆拱桥工程支架设计及构造特点,建立了支架有限元数值分析模型,对不同荷载组合作用下的结构受力情况进行了分析,现场实测变形值与有限元模型计算的理论值基本吻合,结构安全可靠,为钢管混凝土系杆拱桥现浇支架施工及设计计算积累了经验。The bracket design and structural characteristics of 128m through concrete filled steel tube tied arch bridge of Fenghuang interchange super large bridge of newly built railway from Ganzhou to Shenzhen are introduced in the paper.The finite element numerical analysis model of the bracket is established by using the finite element software.The stress of the structure under different load combinations is analyzed.The deformation value measured in field is basically consistent with the theoretical value calculated by the finite element model.The result shows that the structure is reliable.The research of the paper has accumulated experience for cast-in-place support construction and design calculation of CFST tied arch bridge.

关 键 词：下承式钢管混凝土系杆拱桥 贝雷梁式支架 设计 有限元模型 

分 类 号：U445.35[建筑科学—桥梁与隧道工程]