交叉梁系结构中变截面杆件(矩形截面抛物线楔形梁)的计算问题  

The calculation problem of variable cross-section member (parabolic wedge-shaped beam with rectangular section) in cross-beam structures

作　　者：黄志刚[1] 

机构地区：[1]中国纺织工业设计院,北京100037

出　　处：《空间结构》2008年第1期50-57,64,共9页Spatial Structures

摘　　要：矩形截面抛物线楔形梁作为一种变截面杆件在平面楼盖等交叉梁系结构中经常使用.本文通过求矩形截面抛物线楔形梁的单元柔度系数和刚度系数,提出了交叉梁系结构中矩形截面抛物线楔形梁的单元刚度矩阵,通过求矩形截面抛物线楔形梁的载常数,提出了交叉梁系结构中矩形截面抛物线楔形梁上几种作用荷载的等效节点荷载.As a variable cross-section member,parabolic wedge-shaped beam with rectangular section is used frequently in cross-beam structures for plane floor etc.By solving flexibility and stiffness factor,this paper presents element stiffness matrix of parabolic wedge-shaped beam with rectangular section in cross-beam structures.By solving load-constant,this paper presents equivalent nodal load of several applied-loads on parabolic wedge-shaped beam with rectangular section in cross-beam structures.

关 键 词：变截面杆件 柔度系数 刚度系数 刚度矩阵 节点荷载 

分 类 号：TU32[建筑科学—结构工程]