CALCULATION OF DEFLEXION OF FRAME AT COLLAPSE AND ITS EFFECT ON COLLAPSE LOAD
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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。Abstract: 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.
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Key words:
- plastic hinge /
- mechanism of collapse /
- collapse load /
- slope deflection equation
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斯图亚特S J, 莫易.钢结构与混凝土结构塑性设计.陈维纯, 等译.北京:中国建筑工业出版社, 1986 [2] Home M R. Plastic Theory of Structure. New York: Pergamon Press, 1979 [3] 陈绍蕃.钢结构稳定设计指南.北京:中国建筑工业出版社, 1996 [4] 笹川和郎.结构的弹塑性稳定内力.王松涛, 等译.北京:中国建筑工业出版社, 1992
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