G316保通装配式公路钢桥设计方案比选

Comparisons on Design Schemes of Assembled Highway Steel Bridge in G316

以关林子隧道施工保通工程为依托,利用“321”型和“200”型桁架片构建3种钢便桥设计方案,对临时钢便桥应用于永久桥进行了实践,通过结构和经济性因素比选,得到分幅“200”型装配式公路钢桥方案为最佳方案,可为类似工程提供参考。

Based on the traffic guarantee project of the Guanlinzi Tunnel Construction Project,three design schemes of the assembled highway steel bridge are constructed by using type 321 and 200 truss,to explore the feasibility of temporary steel bridges using as permanent bridges.Taking into account of the structural and economic factors,the separated type 200 prefabricated highway steel bridge scheme is the optimal,which can provide reference for similar projects.