建筑钢结构进展2026，Vol.28Issue(5)：32-48,17.DOI:10.13969/j.jzgjgjz.20241107001
分布式摩擦耗能连接模块化钢结构体系抗震性能研究
Seismic Behavior of Modular Steel Structure System with Distributed Friction Energy Dissipation Connections
摘要
Abstract
In order to reduce the post-earthquake damage of modular steel structures,a modular steel structure system with distributed friction energy dissipation connections and its vertical connection joint is proposed.A single-span,2-story,1/2-scale steel frame specimen was designed.Through quasi-static test,the failure mode,hysteretic curve and skeleton curve of the specimen were obtained,and its ductility,energy dissipation capacity,strength degradation and stiffness degradation curve,steel strand stress level change were analyzed.A refined finite element(FE)model was developed using ABAQUS for parametric analysis.A simplified simulation method of joints in the FE analysis was proposed and validated,and an elastoplastic time-history analysis of the overall structure was carried out.The results show that the specimen exhibits excellent seismic performance,with an average ductility coefficient of 3.93 and an equivalent viscous damping coefficient of 0.29.The FE simulation results agree well with the experimental results.Parametric analysis results show that the cumulative energy dissipation of the structure is positively correlated with the initial tension of the steel strand,the friction coefficient of the sliding surface and the maximum allowable slip.Engineering cases analysis indicates that the friction joints remain in an elastic state without sliding under the frequent earthquake.The joint sliding friction energy dissipation under the rare earthquake can provide an additional damping ratio of approximately 3.9%for the structure,effectively enhance the overall energy dissipation capacity of the structure and reduce the plastic damage of the main components.关键词
模块化钢结构/分布式摩擦耗能连接/拟静力试验/抗震性能/参数分析/弹塑性时程分析/附加阻尼比Key words
modular steel structure/distributed friction energy dissipation connection/quasi-static test/seismic behavior/parameter analysis/elastoplastic time-history analysis/additional damping ratio分类
建筑与水利引用本文复制引用
张锡治,马文浩,章少华,邸尧..分布式摩擦耗能连接模块化钢结构体系抗震性能研究[J].建筑钢结构进展,2026,28(5):32-48,17.基金项目
国家自然科学基金(52278203),安徽省自然科学基金"水科学"联合基金(2208085US08) （52278203）
