Open AccessAnalysis of Seismic Performance of the New Self-centering Buckling Restrained Brace
Author(s) -
Shi Qing-xuan,
Yanchun Wang,
Weike Feng
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/560/1/012069
Subject(s) - brace , buckling , structural engineering , reinforcement , finite element method , core (optical fiber) , reset (finance) , tube (container) , engineering , mechanical engineering , telecommunications , financial economics , economics
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%.