Determination of the Design Parameters of SMA Cables for Self-Centering Frame Structures

In order to improve the force performance of traditional anti-buckling energy dissipation bracing with excessive non-recoverable deformation caused by strong seismic action, this paper presents a prestress-braced frame structure system shape memory alloy (SMA) and investigates its characteristics under horizontal load. Firstly, establishes theoretical analysis model analyzing geometric relationship between SMA cables inter-story displacement based on internal balance equation. The is used solve anti-lateral stiffness cable-supported derive reasonable formula for calculating initial prestress cross-sectional area cables. Then, mechanical behavior an equivalent load simulated using ABAQUS software compared calculated results conventional tie-supported non-dissipative-supported structures. show that determined cable design method proposed in significantly improved Furthermore, it can ensure certain ductility requirement system, which verifies effectiveness paper.