土木工程与管理学报2024，Vol.41Issue(3)：12-20,9.DOI:10.13579/j.cnki.2095-0985.2024.20240048
柱端盖板型滑移摩擦节点分层装配钢框架滞回性能研究
Hysteretic Performance of Floor-by-Floor Assembled Steel Frames with Cover-Plates Slip Friction Joint at Column Ends
摘要
Abstract
The floor-by-floor assembled steel frame represents a novel structural form that fully em-bodies rapid assembly characteristics.Based on the low-damage seismic concept,experimental studies and numerical analyses have been conducted on the hysteresis performance of floor-by-floor assembled steel frames with Cover-Plates Slip Friction Joints(CPSFJ)at column ends.It is found that by instal-ling CPSFJ at the column ends,it is possible to effectively replace the energy dissipation through plas-tic damage of structural members with sliding friction under significant seismic activities,thereby pro-tecting the main structural components from damage.The experimental results indicate that under low-cycle reciprocal loading,the hysteresis curves exhibit a full bow shape and the skeleton curves display a three-stage flat-top form,demonstrating good energy dissipation capacity and stable hysteresis per-formance.To solve the issue of insufficient local stiffness of the beam ends,a reinforced rib arrange-ment improvement plan for the beam ends was proposed,which can significantly mitigate stress con-centration at the beam ends and reduce the likelihood of plastic damage.This study provides a new seismic energy dissipation scheme for the design of layered prefabricated steel frame structures,which has significant theoretical and practical value.关键词
分层装配/低损伤/滑移摩擦节点/柱端耗能/滞回性能Key words
floor-by-floor assembled/low-damage/slip friction joint/column end energy dissipation/hysteretic performance分类
建筑与水利引用本文复制引用
李成玉,李杰,吴东平..柱端盖板型滑移摩擦节点分层装配钢框架滞回性能研究[J].土木工程与管理学报,2024,41(3):12-20,9.基金项目
国家自然科学基金(51878522) （51878522）
湖北省住房和城乡建设厅科技计划项目([2023]1656号-078) （[2023]1656号-078）
