异型截面钢筋混凝土双向偏心受压构件正截面承载力的实用计算方法  

PRACTICAL CALCULATION METHOD OF NORMAL CROSS SECTION BEARING CAPACITY OF R.C.COLUMN WITH DEFORMED SECTION SUBJECTED TO BIAXIAL ECCENTRIC COMPRESSION LOADING

作　　者：林拥军[1] 程文瀼[1] 赵建昌[2] 左江 庞志书 

机构地区：[1]东南大学土木工程学院,南京210096 [2]兰州铁道学院,兰州730070 [3]南京建筑设计研究院 [4]煤碳工业部南京设计研究院

出　　处：《工业建筑》2000年第12期11-14,37,共5页Industrial Construction

摘　　要：在计算出 3种等肢对称异型截面双向偏心受压构件正截面承载力的N -Mx-My 相关曲线的基础上 ,用约束方程来逼近这些相关曲线 ,并引入反映截面尺寸对相关曲线影响的修正系数。通过约束方程可以把异型截面双向偏心受压构件的正截面承载力计算转化为单向偏心受压构件来计算。该约束方程形式简单 ,便于工程应用且具有较高的计算精度 ,既可用于截面设计又可用于截面复核。In this paper,on the base of computing N-M x-M y interaction curves for the normal cross section bearing capacity of biaxial eccentric column with three kinds of isolib symmetry deformed cross section,the method of restriction equation approaching the interaction curves was presented in which modifying coefficient to reflect influence of section size were introduced.Using the restricition equation can translate calculation of normal cross section column subjected to biaxial eccentric compression into the general single eccentric compression.The restriction equation is simple and has a high calculation precision.The method can be used for designing or checking.

关 键 词：钢筋混凝土 异型截面 双向偏心受压构件 承载力 

分 类 号：TU375.02[建筑科学—结构工程]