摘要
为选择适合重载铁路大跨度钢桁梁的桥面系形式,Midas/Civil程序建立有限元空间模型,通过对山西中南部108 m双线下承式钢桁梁两种不同桥面系的理论计算分析和综合比较,得出大跨度钢桁梁桥面系选用密横梁钢桥面板体系,既回避了混凝土桥面板的裂缝控制难题,又减小了结构自重,节约了用钢量,还增加施工过程的安全性。
To select a bridge deck system suitable for large-span steel truss girder on a heavy-haul railway, the software Midas/Civil was employed to establish spatial finite element model. After theoretical calculation and analysis as well as comprehensive comparison of two different bridge deck systems for a 108m double-track through-type steel truss girder on the Middle and Southern Shanxi Railway, the paper came to a conclusion that the steel deck with dense transverse beam should be used as the bridge deck system of this large-span steel truss girder, because it not only can avoid the cracking control problem in concrete deck system, but also can reduce structure＆#39;s dead load, decrease the whole steel consumption, and enhance the safety of construction.
出处
《铁道标准设计》
北大核心
2014年第3期90-93,共4页
Railway Standard Design
关键词
重载铁路
大跨度
下承式钢桁梁
桥面系
混凝土桥面板
钢桥面板
heavy-haul railway
large-span
through-type steel truss girder
bridge deck system
concrete deck of bridge
steel deck of bridge
