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。
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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