异形截面钢筋混凝土柱双向偏心受压构件正截面承载力的简便方法  

Simple Calculation Method of Normal Cross Section BearingCapacity of R. C. Column with Deformed Section Subjectedto Biaxial Eccentric Compression Loading

作　　者：田秀梅 史玉廷[2] 

机构地区：[1]天津市红桥职工大学,天津300131 [2]河北工业大学土建学院,天津300132

出　　处：《河北工业大学学报》2002年第3期110-113,共4页Journal of Hebei University of Technology

摘　　要：在计算出了3种等肢对称异形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形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.On the base of computing N桵x桵y interaction curves for the normal cross section bearing cap-aciting of biaxial eccentric column with three kinds of isolib symmetry deformed cross section, the method of restiction 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 cateulation of normal cross section column subjected to biaxial eccentric compression into the general single eccentric compression. The restriction equationis simple and has a high calulation precision. The method can be used for designing or checking.

关 键 词：异形截面 双向偏心受压构件 正截面承载力 约束方程 

分 类 号：TU311.2[建筑科学—结构工程]