强震下V型偏心支撑钢框架层剪力分布及影响因素

Story shear distribution and its influence factors of V-braced EBF under strong ground motions

对6个V型偏心支撑钢框架(VEBF)算例进行了远场强震下的弹塑性时程分析;得到了各算例结构的层剪力分布,分析了影响结构层剪力分布的因素;提出了可用于性态设计的VEBF结构层剪力分布模式,对比分析表明,模式有较好的精度。

Six VEBF example structures are studied using nonlinear time-history analyses under strong ground motions. The story shear distribution of each structure is obtained, the factors that affect the story shear distribu-tion of the structures are also investigated, and a new story shear distribution pattern used for the VEBF structure is proposed. The comparison between the proposed results and the results obtained from nonlinear dynamic anal-yses shows that the suggested distribution pattern is more accurate.