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.
出处
《河北工业大学学报》
CAS
2002年第3期110-113,共4页
Journal of Hebei University of Technology
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
deformed section
biaxial eccentric compression member
normal section bearing capacity
restriction equation
