建筑钢结构进展2026，Vol.28Issue(5)：49-59,11.DOI:10.13969/j.jzgjgjz.20250531002
钢网格支撑钢框架抗震性能研究
Seismic Performance of Steel Grid Braced Steel Frames
摘要
Abstract
In this paper,a steel grid braced steel frame is proposed,and its performance is analyzed under monotonic and cyclic loading.The results show that compared with the chevron-braced steel frame,the bearing capacity of the steel grid braced steel frame is increased by about 50%,and the initial stiffness is significantly increased under monotonic loading.The hysteretic curve of the steel grid braced steel frame is fuller,and the energy dissipation coefficient is higher than that of chevron-braced frame under cyclic loading.When the inter-story drift ratio of the structure is less than 1/50,the vertical displacement at the connection between the steel beam and the brace is relatively small,with a maximum value of 11.35 mm,and the brace has not experienced out-of-plane instability.When the inter-story drift ratio of the structure is greater than 1/50,the vertical displacement at the connection between the steel beam and the brace increases rapidly.The height and thickness of the rib plate at the circular steel tube joints significantly influence the monotonic bearing capacity,hysteretic strength,strength degradation,and energy dissipation coefficient,but the thicknesses of the inner and outer circular steel tubes have little influence.关键词
钢网格支撑钢框架/抗震性能/滞回性能/耗能能力/层间位移角/圆筒厚度Key words
steel grid braced steel frame/seismic performance/hysteretic performance/energy dissipation capacity/inter-story drift ratio/circular steel tube thickness分类
建筑与水利引用本文复制引用
刘丽,孙艳国,赵端,郑亮,高营..钢网格支撑钢框架抗震性能研究[J].建筑钢结构进展,2026,28(5):49-59,11.基金项目
国家自然科学基金(52108481),山西省基础研究计划自由探索类青年基金(202303021212183) （52108481）
