地震作用下考虑分布质量的错层框架错层区域剪力分析  

Shearing force analysis of split-level region for a split-level structure with uniform mass distribution under earthquake

作　　者：王志军[1] 韩风霞[1] 

机构地区：[1]山地城镇建设与新技术教育部重点实验室(重庆大学),重庆400030

出　　处：《振动与冲击》2011年第7期91-95,共5页Journal of Vibration and Shock

摘　　要：在错层框架结构中,错层高度和错层结构形式是影响结构错层区域受力性能的两大主要因素。针对常见的规则错层及对称变维错层结构,通过弹性和弹塑性时程分析,研究了在多遇及罕遇地震作用下不同错层高度的错层结构错层区域所受剪力的变化规律,进一步简化错层区域剪力的计算公式,提出了考虑结构非线性影响的这两类错层结构错层区域剪力的增大系数。In a split-level structure,its split-level height and form are the main factors influencing loading capability of its split-level region.Here,a regular split-level structure and a symmetric trans-dimensional one with uniform mass distribution were analyzed.Under frequent and rare earthquake excitations,the changing rule of shear force of the split-level region with different split-level height was studied through elastic-plastic time-history analysis.The shear force equation for the split-region was further simplified.Considering nonlinear influence,the magnification coefficient of the shear force of the split-level region for the two types of structures was proposed.

关 键 词：错层框架 规则错层结构 对称变维结构 错层区域 剪力 

分 类 号：TU323.5[建筑科学—结构工程]