底框结构倾覆弯矩分配计算新方法  

Research on overturning moment distribution for multi-story masonry buildings with frame-shear wall structure in the first or first and second floor

作　　者：陈岱林[1] 金新阳[1] 张志宏[1] 邵弘[1] 李云贵[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《土木工程学报》2006年第1期29-32,共4页China Civil Engineering Journal

摘　　要：依据抗震规范视上部砌体为刚体的假定,采用梁弯曲理论,提出了底框结构倾覆弯矩分配的新方法。该方法在保证整体结构楼板竖向变形协调的前提下,计算墙、柱构件由倾覆弯矩产生的节点力,克服了现有方法直接计算构件节点力而不考虑各轴线框架楼板变形协调的缺陷。Before analyzing the bottom-level of a multi-story masonry building with frame-shear walls structures, e in the first or first and second floors, the overturning moment produced by the upper masonry seismic action or wind load should be transformed into joint loads acting on the top joints of vertical elements. In this paper, according to the hypothesis proposed by the Chinese Code for Seismic Design of Buildings, the upper masonry is considered as a rigid body. Utilizing the beam bending theory, a new method for overturning moment distribution is presented. The present analysis is compared with the existing method, which calculates joint loads directly without considering displacement compatibility. The proposed method insures that the floor displacements in the vertical direction are in complete agreement with the hypothesis.

关 键 词：多层砌体建筑 底框结构 倾覆弯矩分配 抗震设计 

分 类 号：TU398.5[建筑科学—结构工程]