三跨连续梁拱组合体系桥梁稳定性分析  

Analysis on Stability of 3-Span Continuous Beam Arch Composite System Bridge

作　　者：朱卫国[1] 张松[1] 项贻强 

机构地区：[1]江苏省交通规划设计院,南京210005 [2]浙江大学交通工程研究所,杭州310027

出　　处：《中国市政工程》2004年第3期32-34,共3页China Municipal Engineering

摘　　要：该文采用空间有限元程序,分析预应力混凝土连续梁拱组合体系桥拱肋的横向弹性稳定性。特别分析了风撑布置形式、风撑侧向刚度、吊杆非保向力的作用以及系梁、拱肋、横梁等刚度对稳定性的影响程度。分析结果可用以指导设计并确保施工安全。In this paper, space finite element program is used to analyze the transverse elastic stability for arch ribs of prestressed concrete continuous beam arch composite system bridge, especially for layout of wind bracing, lateral rigidity of wind bracing, nonconservative force of suspender, and the influence on stability by rigidities of tie beam, arch rib and transverse beam etc. The analysis results could be used for design and for the security of construction.

关 键 词：组合体系桥 稳定性 有限元法 预应力混凝土 连续梁桥 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]