| 高强螺栓拼接接头传力特性的有限元模拟与试验研究 |
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| 引用本文： | 黄永辉,王荣辉,刘长海,刘小刚.高强螺栓拼接接头传力特性的有限元模拟与试验研究[J].铁道学报,2011(11):93-98. |
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| 作者姓名： | 黄永辉 王荣辉 刘长海 刘小刚 |
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| 作者单位： | 广州大学广州大学-淡江大学工程结构灾害与控制联合研究中心;华南理工大学土木与交通学院; |
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| 基金项目： | 广东省交通厅科技项目(2007-15) |
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| 摘 要： | 为研究摩擦型高强螺栓连接接头力学性能与受力状态,对2组试件进行有限元数值模拟分析与试验研究。分析各排螺栓传力比、芯板及拼接板截面应力状态、接触面摩擦应力分布规律。数值模拟结果和试验结果表明:各排螺栓传力比呈马鞍型分布,两端大,中间小;芯板和拼接板应力沿板横向和纵向均呈波浪形分布;不同螺栓压力影响区直径均为2.85倍栓孔直径左右。试验结果与有限元数值模拟结果吻合良好,验证了有限元分析的正确性。本文得到的部分经验参数可为该类节点设计验算提供参考。
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| 关 键 词： | 摩擦型高强螺栓 传力特性 有限元分析 试验研究 |
Experimental Study and Finite Element Analysis on Friction High-strength Bolt Connections |
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| HUANG Yong-hui,WANG Rong-hui,LIU Chang-hai,LIU Xiao-gang.Experimental Study and Finite Element Analysis on Friction High-strength Bolt Connections[J].Journal of the China railway Society,2011(11):93-98. |
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| Authors: | HUANG Yong-hui WANG Rong-hui LIU Chang-hai LIU Xiao-gang |
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| Institution: | HUANG Yong-hui1,WANG Rong-hui2,LIU Chang-hai2,LIU Xiao-gang2(1.Guangzhou University-Tamkang University Joint Research Center for Engineering Structure Disaster Prevention and Control,Guangzhou University,Guangzhou 510006,China,2.School of Civil and Transportation Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | In order to study the mechanical behaviors including the load transfer factors of various rows of bolts,stressing state of the sections of core and butt-cover plates and distribution of friction stresses over the contact surface,both finite element analysis(FEA) and experimental study are made with two groups of specimens.FEA and experimental results show as follows: The loads transfer factors of rows of bolts are distributed in the saddle shape,i.e.,a falling-off between the two end edge rows;the stresses ... |
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| Keywords: | friction high-strength bolts mechanical behavior finite element analysis(FEA) experimental study |
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