摘要
文章以某大型钢桁梁柔性拱桥架设为背景,提出了大型钢桁梁柔性拱桥起落梁的施工新技术,介绍了钢桁梁柔性拱架设完成后起落梁施工技术及墩顶辅助结构布置,给出了起落梁技术的实施步骤;利用有限元软件Midas/Civil对钢桁梁柔性拱桥结构起落梁过程进行力学计算,分析了在不同主墩竖向起顶的结构受力性能;该桥梁成功落成表明施工技术经济可行,解决了大型钢桁梁拱桥施工技术难题。
Based on the project of building a super-span bridge with steel truss girder and flexible arch , a construction technique of lifting and landing the steel truss girder and flexible arch on the piers is given in this paper .The construction technique of lifting and landing the bridge and the auxiliary structure layout on the bridge pier top after the completion of building steel truss girder and flexible arch are introduced .Then the implementation steps of the construction technique are presented .Mo-reover ,the finite element software Midas/Civil is used to analyze the stress strength and stability of the super-span bridge structure when it is lifted and landed on the different pier top .The successful construction of the bridge indicates that the construction technique is feasible and solves the technical problem of lifting and landing the super-span bridge with steel truss girder and flexible arch .
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第4期454-456,共3页
Journal of Hefei University of Technology：Natural Science
关键词
钢桁梁拱桥
大跨度
起落梁
施工
bridge with steel truss girder
super-span
girder lifting and landing
construction
