建筑钢结构进展2024，Vol.26Issue(4)：29-36,8.DOI:10.13969/j.cnki.cn31-1893.2024.04.004
薄钢板机械咬合螺栓抗剪连接试验与计算方法
Experiment and Calculation Method of Occlusive Bolt Connections in Shear Between Thin Steel Sheets
摘要
Abstract
In order to explore the occlusive bolt connections in shear between thin steel sheets,a total of 12 occlusive bolt connection specimens and ordinary bolted connection specimens with different washer shapes and pretension forces were designed,and shear tests on the specimens were carried out until failure.The experimental results show that the thin steel sheets of the occlusive bolt connections displayed tension failure adjacent to the occlusive location,while the thin steel sheets of the ordinary bolted connections exhibited bearing failure close to the bolt hole.It was evident that the shear capacities of the occlusive bolt connections were significantly higher than those of the ordinary bolted connections.Finite element models of both occlusive and ordinary bolted connections were developed,and the accuracy of these models was validated against the obtained shear test results.The influences of the washer diameter,the bolt diameter,the sheet thickness and the occlusive depth on the shear capacity of the occlusive bolt connections were further examined.Finally,the shear mechanism of the occlusive bolt connections was studied,and a calculation formula with accurate predictions of shear capacity was proposed.关键词
机械咬合螺栓/薄钢板/抗剪连接/试验研究/计算方法Key words
occlusive bolt/thin steel sheet/shear connection/experimental study/calculation method分类
建筑与水利引用本文复制引用
袁焕鑫,邱鑫,杜新喜..薄钢板机械咬合螺栓抗剪连接试验与计算方法[J].建筑钢结构进展,2024,26(4):29-36,8.基金项目
国家自然科学基金(52278208) （52278208）
