Experimental investigation and finite element analysis on mechanical behavior of column-bracing system under vertical loading

被引：0
|
作者：
Zhang, Yaochun [1 ]
Zhao, Jinyou [1 ,2 ]
Zhang, Wenyuan [1 ]
机构：
[1] School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
[2] School of Civil Engineering, Northeast Forestry University, Harbin 150040, China
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2009年 / 30卷 / 06期
关键词：
Buckling - Random processes - Reliability analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In order to investigate the mechanical behavior of column-bracing system and verify the reliability of finite element analysis, the static experimental studies were conducted on one-story and two-story column-bracing systems with different distributions of the initial imperfections. It is found that the horizontal inter-column brace forces in compression or in tension have also randomness because of the randomness of the initial imperfections of both the columns and braces. The ultimate load-carrying capacity of two-story column-bracing systems is higher than that of one-story column-bracing systems because the mid-height horizontal braces of two-story column-bracing systems can reduce the effective column length more than half of column length. Buckling failure of column-bracing systems is caused by buckling failure of a column. Moreover, a finite element model is developed and verified against tests, and the results from the finite element analysis agree well with the experimental data.
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页码：113 / 121
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