摘要
用经过刚度折减的二阶弹性分析来考虑有侧移框架二阶效应的简化设计方法已初步被我国规范所接受。考虑非弹性特征的钢筋混凝土框架杆件刚度折减系数的合理取值应以钢筋混凝土框架非弹性分析为基础,按框架顶点位移和各层层间位移相近似的原则来确定。再通过与美国、新西兰等国家现行的刚度折减方案的对比,为规范修订提供钢筋混凝土框架杆件刚度折减系数的建议方案。
The simplified method, in which second-order elasticity analysis having undergone stiffness reduction is employed to research into sway frames' second order effect, has begun to be accepted by Chinese Standard. In the proper ascertainment of the value of stiffness reduction factor considering non-elastic characteristic, it is advisable to properly choose the checking computation method of the stiffness reduction on the basis of a comprehensive analysis of RC frame. Combined with a contrastive analysis of the present schemes in USA and New Zealand, a scheme to ascertain the RC frames component's stiffness reduction is proposed for the revision of the Chinese Standard.
出处
《重庆建筑大学学报》
EI
CSCD
2000年第1期25-32,108,共9页
Journal of Chongqing Jianzhu University
基金
国家自然科学基金!NO :59678035
关键词
二阶弹性分析
刚度折减系数
钢筋混凝土框架
second order elastic analysis based on stiffness reduction
sway frames
second order effect
stiffness reduction factor
