广西科技大学学报2025，Vol.36Issue(6)：51-57,7.DOI:10.16375/j.cnki.cn45-1395/t.2025.06.007
外伸式端板单向螺栓连接钢框架抗震性能数值分析研究
Numerical analysis on seismic performance of steel frames connected with extended end-plates and unidirectional bolts
摘要
Abstract
This study systematically investigated the seismic performance of steel frames with extended end-plate single-bolt connections.By combining theoretical modeling and numerical simulation,the mechanical response of this connection type under cyclic loading was analyzed.The research focused on the hysteretic behavior,stiffness degradation patterns,and energy dissipation capacity of the structure,revealing the damage evolution mechanism of the extended end-plate single-bolt connection under cyclic loading.The numerical simulation results show that compared with conventional bolted connections,the steel frames with single-bolt connections exhibit more plump hysteretic curves,a significant increase in peak load,superior stiffness in the elastic stage,and higher load transfer efficiency in the nonlinear stage.The stiffness degradation process is more gradual,and the mechanical performance under cyclic loading is more stable,with an increased energy dissipation coefficient.Moreover,the single-sided tightening characteristic of the single bolt effectively solves the installation difficulties of closed-section components such as tubular and box-section members.The research findings confirm that this connection configuration exhibits excellent seismic performance and practical value in prefabricated steel structures,providing a key theoretical foundation for the seismic design and engineering application of steel frames with extended end-plate single-bolt connections.关键词
单向螺栓/外伸式端板/钢框架/抗震能力/滞回耗能/刚度退化Key words
single bolt/outstretched end plate/steel frame/seismic capacity/hysteretic energy dissipation/stiffness degradation分类
建筑与水利引用本文复制引用
陶向阳,刘伟,杨睿,程龙健..外伸式端板单向螺栓连接钢框架抗震性能数值分析研究[J].广西科技大学学报,2025,36(6):51-57,7.基金项目
2024年安徽省高等学校自然科学研究重点项目(2024AH051538) （2024AH051538）
安徽省自然科学基金面上项目(2108085ME189) （2108085ME189）
安徽省高校学科(专业)拔尖人才学术项目(gxbjZD2022056)资助 （专业）
