大跨度石拱桥的全桥结构仿真分析研究  

RESEARCH ON STRUCTURAL SIMULATION ANALYSIS FOR ENTIRE BRI DGE OFLONG-SPAN STONE ARCH BRIDGE

作　　者：周岑[1] 郑凯锋[2] 范立础[3] 

机构地区：[1]中交公路规划设计院 [2]西南交通大学 [3]同济大学

出　　处：《土木工程学报》2004年第3期89-92,共4页China Civil Engineering Journal

基　　金：国家自然科学基金资助项目(59878045)

摘　　要：阐述了全桥结构仿真分析的基本思路。结合丹河新桥这一世界最大跨度石拱桥的实例 ,详细介绍了如何建立由多种单元组合而成 ,包括上部结构、下部结构和地基在内的全桥结构仿真分析模型 ,并借助上述模型 ,进行了结构分析计算。计算结果表明 :全桥结构仿真分析技术在大跨度石拱桥的分析计算中 ,能得到较传统计算理论更加详尽和精确的结果 。The basic concept of structural simulation Analysis fo r Entire Bridge(SSAEB) is expounded.Combing with a practical example of Danhe New Bridge,which is a largest-span stone arch bridge in the world,that the establish ment process for the SSAEB model of Danhe New Bridge,which is composed by differ ent unit elements including superstructure,substructure and ground base,has been introduced in detail and from the aid of above mentioned model,hence its struct ural analysis calculation is carried out.The results of calculation show that th e technique of SSAEB used to the analysis calculation of long-span stone arch br idge can get more detailed and more accurate results than the results calculated from the traditional calculation theory,therefore the method of SSAEB opens up vast vistas for the application to bridge analysis.

关 键 词：大跨度石拱桥 全桥结构 仿真分析 拱架施工 结构动力特性 

分 类 号：U448.32[建筑科学—桥梁与隧道工程] U441[交通运输工程—道路与铁道工程]