基于321型和HD200型的大跨径装配式公路钢桥的研究  

Research on large span assembled highway steel bridge based on type-321 and type-HD200

作　　者：刘玉娟[1,2] 姚文奇 刘永健[1] 邱洁霖[1] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]山西交通职业技术学院公路系,山西晋中030619 [3]西安中交土木科技有限公司,陕西西安710075

出　　处：《合肥工业大学学报（自然科学版）》2014年第12期1488-1492,共5页Journal of Hefei University of Technology：Natural Science

基　　金：交通运输部企业技术创新资助项目(2013315490060)

摘　　要：随着我国大跨径桥梁的增多,现有的装配式结构已无法满足应急抢修工作的需要,其存在的主要问题是跨越能力有限。文章利用现有321型和HD200型的产品库存及其多排多层的拼装方式,提出了一种易于架设的组合桁架式装配式公路钢桥,大大提高了该类结构的跨径,并对其组成构件、连接构造、计算理论及受力进行分析,为该类桥型的设计提供了参考。With the increase of large span bridges in China ,the existing assembled‐type structure has been unable to meet the requirement of the emergency repair w ork ,and the main problem is the finite span .In this paper ,a kind of truss‐type assembled highway steel bridge is presented ,which makes full use of inventory and multi‐slice assembly of the existing assembled type‐321 and type‐HD200 products and improves the span of the bridge greatly .And the structure design of the component , connection ,calculation theory and force analysis are introduced ,w hich can provide a reference for the design of assembled highway steel bridge .

关 键 词：装配式公路钢桥 组合桁架式 容许应力法 效率系数 屈曲系数 

分 类 号：U443[建筑科学—桥梁与隧道工程]