中承式系杆拱桥结构设计  

Structural Design of Half-through Bowstring Arched Bridge

作　　者：孙书亭[1] 王鹤群 刘斌[1] 

机构地区：[1]中国市政工程华北设计研究总院,天津市300074 [2]北京泽阳科信交通科技发展有限公司,北京市100107

出　　处：《城市道桥与防洪》2014年第7期149-152,共4页Urban Roads Bridges & Flood Control

摘　　要：西扎达盖河桥梁采用跨径56 m的中承式拱桥,桥面宽40.4 m,两拱肋间距26.4 m,采用了钢拱肋、钢-混结合梁桥面系。这种结构具有比混凝土结构更大的承载能力,而且自重轻。运用有限元分析软件对结构进行了静力分析、动力特性分析及地震响应分析,分析表明桥梁满足使用阶段的要求。Xizadagai River Bridge is a half-through arched bridge with 56-m span. Its deck width is 40.4 m.The spacing of two arch ribs is 26.4 m. The steel arch rib and steel-concrete combined beam deck system is used. This structure has the greater carrying capacity than the concrete structure, and also its weight is light.The finite element analysis software is used to carry out the static analysis, dynamic characteristic analysis and seismic response analysis of structure. The analysis shows that this bridge can satisfy the requirement of using stage.

关 键 词：中承式系杆拱桥 结构设计 拱肋 应力 钢-混结合梁 稳定性 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]