DOI: 10.5937/jaes0-28086
This is an open access article distributed under the CC BY 4.0
Volume 18 article 747 pages: 693 - 698
The main purpose of this paper is to evaluate the structural response of composite steel-concrete eccentrically
buckling-restrained braced frames (BRBFs). The finite element (FE) software ABAQUS is employed to nonlinearly
analyse the BRBFs. Comparing the modelling and experimental test results validates the FE modelling method of
the BRBF. Three different strong earthquake records of Tabas, Northridge, and Chi-Chi are selected for the nonlinear
dynamic analyses. A BRBF is then designed having a shear link. Afterwards, the designed BRBF is analysed under
the selected earthquake records using the validated modelling method. The lateral displacements, base shears, and
energy dissipations of the frame and shear link rotations are achieved from the analyses of the BRBF. The results are
compared and discussed. The obtained BRBF results are also compared with their corresponding steel eccentrically
braced frame (EBF) results. It is concluded that the BRBF can generally accomplish the improved structural response
compared with the EBF under the earthquake records. Meanwhile, the BRBF has larger base shear capacity than the
EBF. Besides, the BRBF dissipates more energy than the EBF.
The work was carried out with the financial support of the
state project of the Ministry of Education and Science
project code FSFF-2020-0016.
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