建筑结构学报2023，Vol.44Issue(12)：1-12,12.DOI:10.14006/j.jzjgxb.2022.0579
基于增量动力分析的重力-侧力承载体系分离钢木混合结构抗震性能研究
Seismic performance of steel-timber hybrid structures with separated gravity and lateral resisting systems based on incremental dynamic analysis
摘要
Abstract
Steel-timber hybrid structures with separated gravity and lateral resisting systems were proposed in this paper to take full advantage of the mechanical properties of steel and timber materials and substructures.The introduction of deformable connections reduces the seismic structural response.Taking the steel plate shear wall-glulam frame hybrid structures as an example,an approximate feasible parameter design space for the deformable connection between steel and timber structure was defined.Furthermore,the maximum inter-story drift ratios of the structure under different seismic hazard levels were determined based on incremental dynamic analysis,and the damage indices were assessed by probabilistic seismic demand analysis.The results show that the introduction of deformable connections in steel-timber hybrid structures with separated gravity and lateral resisting systems can reduce the internal force of connections and the floor acceleration of glulam structures.The limit states of maximum inter-story drift ratio under immediate occupancy,life safety,and collapse prevention are 0.2％,0.7％,and 2.6％,respectively.Besides,a log-linear relationship between the peak ground acceleration and the maximum inter-story drift ratio is observed,and the maximum inter-story drift ratio under shallow earthquakes was larger than that under deep earthquakes.The seismic performance of steel-timber hybrid structures with separated gravity and lateral resisting systems is satisfactory,with a low maximum inter-story drift ratio exceedance at each performance level.关键词
钢木混合结构/胶合木框架/防屈曲钢板剪力墙/增量动力分析/概率地震需求分析/抗震性能Key words
steel-timber hybrid structure/glulam frame/buckling restrained steel plate shear wall/incremental dynamic analysis/probabilistic seismic demand analysis/seismic performance分类
建筑与水利引用本文复制引用
李征,王振,何敏娟,舒展..基于增量动力分析的重力-侧力承载体系分离钢木混合结构抗震性能研究[J].建筑结构学报,2023,44(12):1-12,12.基金项目
国家自然科学基金项目(52222802),上海市科技创新行动计划启明星项目(21QA1409300). （52222802）
