大跨下承式钢箱系杆拱桥通行大件运输车辆能力研究

Study on the Capacity of Large-span Steel-box Downpass Tied-arch Bridge to Carry Large Transport Vehicles

基于目前对大件运输车辆作用下大跨下承式钢箱系杆拱桥通行能力和结构安全评估尚缺少相关研究,本文以160t大件运输车辆通行一座主跨265m下承式钢箱系杆拱为例,通过有限元分析计算,对大件运输车辆作用下大跨下承式钢箱系杆拱桥进行通行能力研究和结构安全评估,并给出了通行结论与建议,以期为同类型工程项目提供参考与借鉴。

Due to the lack of relevant studies on the capacity and structural safety assessment of the large-span steel-box downpass tied-arch bridge to carry large transport vehicles,this paper takes a large-span(265m)steel-box through tied-arch bridge to carry a large transport vehicles(160t)as an example,the capacity and structural safety assessment of the bridge are carried out by finite element analysis.Furthermore,the passage conclusions and suggestions are given in order to provide reference for similar engineering projects.