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桁梁结合梁栓钉疲劳承载力的试验研究
The Experimental Study on the Fatigue Bearing Capacity of the Steel-Concrete Composite Truss Girder Stud
【摘要】 针对某桁梁结合梁桥的实际情况,通过等幅疲劳推出试验,对Φ22及Φ25栓钉疲劳强度的控制因素等问题做了研究,并通过回归分析得出剪应力幅与循环次数的关系式.
【Abstract】 In this paper,for a particular steel-concrete composite truss girder bridge,the factors controlling the fatigue strength of 22 and 25 studs and other problems are studied through fatigue pull tests with unchanded range of shear stress nr. The relationship expression between and cycle times N is got by using regression analysis.
【关键词】 栓钉;
疲劳;
剪应力幅;
循环次数;
结合梁;
【Key words】 stud; fatigue; range of shear stress; cycle times; composite girder;
【Key words】 stud; fatigue; range of shear stress; cycle times; composite girder;
【基金】 铁道部重点项目
- 【文献出处】 长沙铁道学院学报 ,JOURNAL OF CHANGSHA RAILWAY UNIVERSITY , 编辑部邮箱 ,1999年04期
- 【分类号】U443.35
- 【被引频次】30
- 【下载频次】253