钢筋混凝土偏压构件偏心矩增大系数计算方法探讨  

Discussion on the Computational Methods of Eccentricity Magnification Coefficient of Eccentric Compression Reinforced Concrete Members

作　　者：肖武光 江祥林 程海根[2] 

机构地区：[1]江西省交通科学研究院,南昌330038 [2]华东交通大学土建学院,南昌330013

出　　处：《交通科技》2009年第2期11-14,共4页Transportation Science & Technology

摘　　要：由于我国不同时期不同规范对钢筋混凝土偏压构件偏心距增大系数采用的计算公式不同,导致相关设计人员对不同的偏心矩增大系数计算公式在理解上产生了一定的困难。为了明确钢筋混凝土偏压构件偏心矩增大系数概念,理解不同计算公式的含义和本质,探讨了用临界力和极限曲率来表示偏压构件偏心矩增大系数计算公式的原理,结果表明两者的本质是一致的。In different periods or different codes in our country, different design formulas of eccentricity magnification coefficient of eccentric compression members have been adopted, which therefore results in relative designers＇ certain difficulty in understanding those different formulas. In order to make clear the concept of eccentricity magnification coefficient of eccentric compression reinforced concrete members and understand the meaning and essence of those design formulas, this article respectively discusses the principles of the design formulas of eccentricity magnification coefficient of eccentric compression members expressed by buckling load or by ultimate curvature, and the result shows that the essence of both formulas is the same.

关 键 词：偏压构件 偏心距增大系数 临界力 极限曲率 

分 类 号：TU375.01[建筑科学—结构工程] TU375.3