弯曲型支撑-框架结构的屈曲及位移和弯矩放大系数  

Buckling of Frames Braced by Shear-Walls and Amplification Factors for Drift and Moment

作　　者：童根树[1] 胡进秀[1] 

机构地区：[1]浙江大学土木工程系,杭州310027

出　　处：《建筑钢结构进展》2007年第1期52-56,共5页Progress in Steel Building Structures

摘　　要：本文对等刚度和等轴力的理想化弯曲型支撑-框架结构的稳定性,采用连续化模型进行了研究,得到了整体有侧移屈曲的总临界荷载计算公式,并对均布水平力和倒三角分布的水平力作用下的侧移和内力进行了线性和二阶分析,得到了考虑二阶效应后框架柱弯矩和整体侧移的二阶效应放大系数,提出了简单的计算公式。Buckling of frames braced by shear-walls is analyzed using a continuous model with constant rigidities and constant axial forces. Close form of solution is obtained for the total buckling load. Linear and second order analyses are carried out for the systems loaded by uniformly distributed horizontal load and triangularly distributed horizontal load. Amplification factor for the lateral drift and the moment of columns is calculated and a formula is proposed.

关 键 词：框架-支撑结构体系 屈曲 二阶效应 弯矩放大系数 

分 类 号：TU311.2[建筑科学—结构工程]