Elastic buckling analysis of core-separated buckling-restrained braces by RITZ method

被引：0

作者：

Guo, Yan-Lin ^{[1
]}

Zhang, Bo-Hao ^{[1
]}

Jiang, Zi-Qin ^{[1
]}

Zhao, Si-Yuan ^{[1
]}

机构：

[1] Department of Civil Engineering, Tsinghua University, Beijing

来源：

Gongcheng Lixue/Engineering Mechanics | 2015年 / 32卷 / 01期

关键词：

Buckling-restrained brace; Core-separated; Elastic buckling load; Energy method; Ritz method;

D O I：

10.6052/j.issn.1000-4750.2014.01.0086

中图分类号：

学科分类号：

摘要：

Several new types of core-separated buckling-restrained braces (CSBRBs) were proposed in this paper. Compared with traditional buckling-restrained braces, CSBRBs have the potential to be widely used because of their lightness and convenience in fabrication and erection. The chord members of CSBRBs contain two traditional single-core BRBs connected by continuous web plate longitudinally. The separating section is very helpful to improve the bending stiffness, thus the brace material of CSBRBs is utilized more efficiently. Therefore CSBRBs can be used as a kind of large-tonnage buckling-restrained brace in building structures. As an important parameter for calculating restraining ratio, the elastic buckling load of pin-ended CSBRB was first obtained by energy method, and then verified by finite element elastic buckling analysis. This research provides basis for further investigations on CSBRBs. ©, 2015, Tsinghua University. All right reserved.

引用

页码：26 / 35

页数：9

共 16 条

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