海南大学学报（自然科学版）2025，Vol.43Issue(3)：242-254,13.DOI:10.15886/j.cnki.hdxbzkb.2024091402
柔性支撑冷弯薄壁型钢框架结构振动台试验
Shaking table test of flexible support cold-formed thin-walled steel frame structure
摘要
Abstract
To study the mechanical behavior of flexible support cold-formed thin-walled steel frame structures under earthquake excitation,two full-scale frame models with flexible supports arranged only at the top and bottom of the frames were designed and fabricated.Shaking table tests were conducted on both models.By comparing their dynamic characteristics and responses,the influence of flexible supports on the overall seismic performance of the structures was investigated,along with numerical simulations.The results show that as the peak input excitation acceleration increases,the natural frequency of the structure decreases,while the dynamic response increases.Compared to the T2 model,the T1 model has greater overall stiffness,with smaller acceleration and displacement responses.Under both frequent and rare seismic events,the maximum inter-story drift angles of both models meet the code's limit requirements and demonstrate a high safety margin.The flexible support cold-formed thin-walled steel frame structures exhibit good deformation capacity and seismic performance.The finite element analysis results align well with the experimental results.关键词
新型支撑体系/轻钢框架/振动台试验/抗震性能/有限元分析Key words
new support system/light steel frame/shaking table test/seismic performance/finite element analysis分类
建筑与水利引用本文复制引用
唐志伟,曾翔,曹宝珠,唐甸葆..柔性支撑冷弯薄壁型钢框架结构振动台试验[J].海南大学学报（自然科学版）,2025,43(3):242-254,13.基金项目
海南省重点研发计划项目(ZDYF2024SHFZ081) （ZDYF2024SHFZ081）
海南省研究生创新科研项目(Qhyb2023-25) （Qhyb2023-25）
