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Analysis of Seismic Performance of the New Self-centering Buckling Restrained Brace
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Abstract
A new structure of self-centering buckling restrained brace was proposed. The finite element model was established by ABAQUS software. The mechanical failure mechanism of this kind of self-centering buckling restrained brace was studied. The influence of the parameters such as the area of self-centering reinforcement and the sectional area of core tube on its hysteretic performance and self-centering ability was analyzed. The results show that with the increase of the area of the reset reinforcement, the hysteretic curve of the brace is more pinched, and the self-centering ability is increased by 46%; it was suggested that the weakening degree of the cross-sectional area of the core tube should not exceed 50%.
Title: Analysis of Seismic Performance of the New Self-centering Buckling Restrained Brace
Description:
Abstract
A new structure of self-centering buckling restrained brace was proposed.
The finite element model was established by ABAQUS software.
The mechanical failure mechanism of this kind of self-centering buckling restrained brace was studied.
The influence of the parameters such as the area of self-centering reinforcement and the sectional area of core tube on its hysteretic performance and self-centering ability was analyzed.
The results show that with the increase of the area of the reset reinforcement, the hysteretic curve of the brace is more pinched, and the self-centering ability is increased by 46%; it was suggested that the weakening degree of the cross-sectional area of the core tube should not exceed 50%.
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