RESEARCH ARTICLE
Overall Stability Analysis of Improved Buckling Restrained Braces
Zhanzhong Yin*, Fucheng Bu
Article Information
Identifiers and Pagination:
Year: 2016Volume: 10
First Page: 61
Last Page: 75
Publisher ID: TOCIEJ-10-61
DOI: 10.2174/1874149501610010061
Article History:
Received Date: 25/05/2015Revision Received Date: 21/09/2015
Acceptance Date: 09/10/2015
Electronic publication date: 10/3/2016
Collection year: 2016
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
In order to improve the behavior of double-tube buckling restrained braces (BRBs), it is proposed to set contact rings between inner tube and outer tube of the brace. As a result, they can provide lateral constraint for the inner tube; this is the improved buckling restrained braces (IBRBs). In this paper, a program was edited by the language of MATLAB based on theoretical model formulation of IBRBs and applied to the calculation of overall stability strength capacity. Finite element models of IBRBs were carried out and both load displacement curves and strength capacity were obtained. Tests on IBRBs were also conducted. The results of numerical simulation agreed with the ones of the program and tests. It indicated that the program was reasonable so it could provide a basis for the analysis of overall stability strength capacity of these kinds of IBRBs.