混凝土框架柱二阶效应计算方法研究  

Study of the method of RC frame pillar’s second-order effect

作　　者：洪健[1] 刘澍[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《企业技术开发》2009年第1期11-13,30,共4页Technological Development of Enterprise

摘　　要：经过刚度折减的二阶弹性分析来考虑框架二阶效应的简化设计方法已被工程界广泛接受,而我国主流设计方法还是使用传统的η-l0法,这种设计方法常常不准确。文章通过实际算例分别按两种方法计算出各柱端弯矩和配筋,通过比较得出两种方法在不同情况下,在结构的不同位置上的具体差异,最后根据结论,提出在实践设计中该如何有效利用折减刚度法的建议。The simplifed method,in which second-order elasticity analysis having undergone stiffness reduction is employed to research into sway frames＇ second order effect has already been extensively accepted by the engineering field, but our country main current still use the traditional η-l0 methods which cause the inaccuracy in the many circumstances. This text calculate the bending moment and steel quanity of each pillar, compare the concrete differences at structure between the two methods in the different condition. Finally get how to effectively use the stiffnessreduction method according to the conclusion of suggestion.

关 键 词：二阶弹性分析 二阶效应 折减刚度法 η-l0法 

分 类 号：TU37[建筑科学—结构工程]