Hysteretic Behavior Analysis and Numerical Simulation of Displacement Amplified Self-centering Buckling-restrained Brace
This study proposed a novel Displacement Amplified Self-centering Buckling-restrained Brace(DASCB).A series of nu-merical models of DASCBs were developed to study its hysteretic behavior,self-centering and energy dissipation capabilities based on the finite element software Abaqus.Results showed that the DASCBs exhibited good hysteretic behaviors,energy dissipation and self-centering capacities.Numerical results showed the stiffness of self-centering system had great effect on the bearing capacity of DAS-CBs,and yet the energy dissipation was affected less by the prestress level of steel strand.Increasing the prestress strength of steel strand can greatly improve the self-centering performance,when the pre-tension level of strand is low.
displacement amplificationSelf-centering Buckling-restrained Braceprestressfinite element analysishysteretic behav-ior
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