摘要
防屈曲支撑（BRB）是用于改善多高层结构抗震性能的抗侧力构件。本文提出了一种新型穿孔式防屈曲支撑（PCBRB）并对其进行ABAQUS有限元模拟,采用ABAQUS/Standard中的弧长法（Riks Method）研究纵向带宽厚比b/t、横向带宽厚比bb/t对PCBRB承载力的影响。结果表明,b/t取值范围为1.00～2.00时满足预期受力特点,bb/t取值范围为0.50～2.00时满足预期受力特点,说明了b/t对PCBRB承载力的影响较大、而bb/t对PCBRB承载力的影响不明显。
Buckling Restrained Brace （ BRB ） was a lateral-force resisting component which improves the seismic behavior. A New Perforated Core Buckling Restrained Brace（PCBRB）was proposed and simulated by ABAQUS, and the influence of flakiness ratios b/t and bb/t to PCBRB was studied by Riks Method of ABAQUS/Standard. The results showed that PCBRB could demand the prospective mechanical characteristics when b/t were 1. 00 to 2.00 and bb/t were 0. 50 to 2.00. And it concluded that the influence of b/t to PCBRB was great but influence of bb/t was not.
出处
《低温建筑技术》
2016年第3期69-71,共3页
Low Temperature Architecture Technology
关键词
穿孔式防屈曲支撑
有限元分析
弧长法
宽厚比
perforated core buckling restrained brace
finite element analysis
Riks Method
flaki- ness ratio
