装配式铆钉在铝合金抗剪连接中的应用研究  

Applied Research on Assembled Rivets for Shear Connection of Aluminum Alloy

作　　者：闫亚杰 仲志强[2] 武生文 郭昱 王时贵 曹少成 YAN Yajie;ZHONG Zhiqiang;WU Shengwen;GUO Yu;WANG Shigui;CAO Shaocheng(Shanxi University of Electronic Science and Technology,Linfen,Shanxi 041000,China;Taiyuan University of Technology,Taiyuan,Shanxi 030024,China;Shanxi Fifth Construction Group Co.,Ltd.,Taiyuan,Shanxi 030013,China)

机构地区：[1]山西电子科技学院,山西临汾041000 [2]太原理工大学,山西太原030024 [3]山西五建集团有限公司,山西太原030013

出　　处：《施工技术（中英文）》2024年第21期46-57,共12页Construction Technology

基　　金：国家自然科学基金(51208332);山西省基础研究计划(2022030212111761)。

摘　　要：针对铝合金结构不适宜采用焊接、现有紧固件抗剪连接下节点易发生错动的问题,设计抗剪连接用装配式铆钉,给出装配式铆钉构造、工作原理及预紧力测定方法。通过开展抗剪试件试验研究和有限元分析,得到装配式铆钉抗剪连接荷载-位移曲线、传力方式、破坏机理及形态,确定装配式铆钉合理铆固顺序,并验证有限元模型及分析结果的有效性。根据研究结果,实际应用时推荐抗剪连接同一受力方向板厚之和与装配式铆钉直径的比值为1.00~1.25。开展装配式铆钉抗剪性能影响因素分析,通过数值拟合得到装配式铆钉承载力计算公式,给出装配式铆钉抗剪连接选用规格。Aiming at the problems that welding is not suitable for aluminum alloy structure and the nodes are prone to misalignment under shear connection of existing fasteners,the assembled rivets for shear connection are designed,and the structure,working principle and preload determination method of assembled rivets are given.By carrying out shear specimen test research and finite element analysis,the assembled rivets shear connection load and displacement curves,force transfer mode,damage mechanism and morphology,to determine the reasonable riveting order of the assembled rivets,and to verify the validity of the finite element model and analysis results.According to the research results,in practical application,it is recommended that the ratio of the sum of the plate thickness of the shear connection in the same force direction to the diameter of the assembled rivets is 1.00~1.25.The influencing factors of assembled rivets shear performance were analyzed,through numerical fitting to get the assembled rivets bearing capacity calculation formula.The selection specifications of shear connection of assembled rivets are given.

关 键 词：装配式 铝合金 铆钉 抗剪性能 

分 类 号：TU395[建筑科学—结构工程]