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研究摩擦型高强度螺栓接头的受力机理和极限状态 ,通过非线性有限元分析研究了荷载水平、螺栓排数和螺栓间距等因素对头排螺栓传力比的影响 ,得出结论 ,我国正在制定的基于可靠度理论的《铁路桥涵设计规范》送审稿第二稿中将长接头排螺栓传力比由早先几稿中的 0 .35改为 0 .30是安全合理的
The mechanism and the limit state of the friction type high strength bolt joint are studied. The influences of the load level, the number of bolt rows and the bolt spacing on the transmission ratio of the head row bolts are studied through nonlinear finite element analysis. It is concluded that China is developing Based on the reliability theory of “railway bridges and culverts,” the second draft of the manuscript for review draft will be long bolt row force transmission ratio from the previous draft of 0 .35 to 0 .30 is safe and reasonable