支撑框架结构在水平荷载下的简化计算
首发时间:2013-03-14
摘要:本文中提出了考虑支撑框架中柱的弯曲变形和支撑对抗弯刚度影响的计算方法,推导了其刚度矩阵,并结合D值法对支撑框架的刚度矩阵进行修正。分析了不同高宽比、梁柱线刚度比等参数的影响。分析得出:当支撑框架总高度较低时,不能忽略柱的弯曲变形及支撑对结构位移的影响,而当支撑框架总高度较高时,支撑框架中柱的弯曲变形及支撑对结构的水平位移影响很小,可以忽略不计;在支撑钢管混凝土框架中,可不考虑梁柱线刚度比的变化对支撑框架部分水平位移的影响。
For information in English, please click here
Implicit Precise Simplified Calculation of The Braced Frame Structure under Horizontal loads
Abstract:In this paper, the rigidity matrix of the braced steel frame was deduced by considering the flexural deformation of the pillar and the bending rigidity of the brace. It was applied into the bracing concrete-filled rectangular steel tubular frame by revising it through amendatory contraflexure point method. Analysis has been made for the influence of such parameters as width-length ratio and ratio of beam rigidity. Calculation results show that when the total height of the braced frame is low, can not ignore the influence of column's bending deformation and brace's stiffness on the structural displacement, while the higher total height of the braced frame, influence is very small, can be neglected. In the concrete filled steel tube braced frame, it can take no account of the influence of change of beam-column linear stiffness ratio on the horizontal displacement of braced frame.
Keywords: braced frame concrete filled steel tube horizontal loads
论文图表:
引用
No.****
同行评议
共计0人参与
勘误表
支撑框架结构在水平荷载下的简化计算
评论
全部评论