On the basis of fatigue test results for some important structural details, fatigue performance of some new structures in long-span steel highway bridges built in recent years in china is studied.
结合近些年来我国大跨径公路钢桥的建造情况，根据对部分关键构造细节所进行的疲劳试验结果，分析了几种新型结构型式和制造工艺中所存在的疲劳问题。
This application practice showed that steel concrete composite beams are very suitable for long span structures and have good technical and economic results.
工程实践表明，钢-混凝土组合梁用于大跨结构，具有显著的技术经济效益和社会效益。
This paper deals with the problem about the conceptual design of long span special steel roof structures.
本文提出了大型场馆异形钢结构屋面的概念设计问题。
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