框架破坏瞬时的变位和变位对破坏荷载影响的计算  

CALCULATION OF DEFLEXION OF FRAME AT COLLAPSE AND ITS EFFECT ON COLLAPSE LOAD

作　　者：陆铁坚[1] 余志武[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《工业建筑》2004年第4期79-81,共3页Industrial Construction

摘　　要：采用杆件转角 -位移方程 ,对竖柱考虑了轴力对刚度修正。推导了门式钢框架破坏瞬时变位的简易计算方法。此外 ,还推导了变位对破坏荷载影响的计算方法 ,利用该方法可计算破坏瞬时变位对破坏荷载的影响。Employing the slope deflection equation and considering stiffness modified by the axial force to vertical columns,the simple method of calculation of the deflection of portal steel frame at collapse is presented. Besides,the calculation method of effect of deflection on the collapse load is also presented. To make use of this method may calculate effect of deflection at collapse on the collapse load.

关 键 词：门式钢框架 塑性胶 破坏荷载 转角一位移方程 杆件 

分 类 号：TU391[建筑科学—结构工程]