Discussion on the parameters matching of a buckling restrained brace in structural design

被引：0

作者：

Wu K. ^{[1
]}

Tao Z. ^{[2
]}

Yu W. ^{[1
]}

Lan X. ^{[1
]}

Zhang L. ^{[1
]}

机构：

[1] College of Architecture and Civil Engineering, Kunming University, Kunming

[2] Civil Engineering Institute, Kunming University of Science and Technology, Kunming

来源：

Tao, Zhong | 1600年 / Chinese Vibration Engineering Society卷 / 40期

关键词：

Buckling restrained brace(BRB); Energy dissipation; Equivalent parameter; Yield displacement;

D O I：

10.13465/j.cnki.jvs.2021.14.016

中图分类号：

学科分类号：

摘要：

The issue of parameters matching of a buckling restrained brace(BRB) in structural design was studied. The relationship between BRB equivalent parameters and actual parameters was established by introducing a coefficient Qm. The reasonable matching relationship between the yield capacity and the equivalent rigidity of BRB, as well as the matching relationship between the yield deformation and the length of BRB were analyzed. Based on the analysis results, the reasonable value ranges of parameters were proposed to derive the relationship between the BRB and the main frame, and the conditions for BRB to yield preceding the main frame were presented. In addition, the BRB's yield energy consumption under specific earthquake level and the deformation control under rare earthquake were discussed. Then the guarantee conditions for the energy consumption and the safety of BRB in different structural systems were provided. The design process of BRB products was established and the validity of the proposed parameter control was verified through examples analysis. The analysis results show that the BRB designed according to the proposed design process can achieve successfully all the performance objectives. The results provide a theoretical reference for the rational control of BRB product parameters and the application of BRB to structures in practical engineering. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：117 / 124and143

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