摘要
采用自编的双重非线性壳体有限元程序ＤＮＳＦＥＭ，分析了四边简支板和箱形截面钢短柱的滞回性能，得到了箱形截面钢短柱的翼缘板在强震条件下的宽厚比限值。
A nonlinear behavior of simply supported rectangular plates and box-section struts due to the cyclic load are studied by using a computer Program. Nine pieces of Plates under in plane cyclic load and twelve pieces of the short box-section columns under cyclic uniaxial load are investigated. First, a set of six pieces of long plates is performed to compare their hysteretic be haviors with that of the other three pieces of short ones. It is considered the effect of the length to width ratio. Then, a set of six pieces of box-section struts with rectangular sections is performed to compare with that of the other six pieces with quadrate sections. The effect of the width to thickness ratio is considered. The hysteretic of columns and plates are also com columns to find the effect of boundary conditions. The successive reduction of the ultimate strength and the residual deformation at zero-load stage are provided. The limit width to thickness ratio of flanges for steel box-section struts under a strong seismic action is obtained. The results are compared with several codes for steel structures.
出处
《土木工程学报》
EI
CSCD
北大核心
2000年第5期13-18,共6页
China Civil Engineering Journal
基金
国家自然科学基金!(编号:59678030)
关键词
箱形截面柱
滞回性能
宽厚比
钢结构
box-section strut, hysteritic behavior, width to thickness ratio
