Experimental study on seismic behavior of steel strip reinforced CSPSWs in modular building structures

Corrugated steel plate shear walls (CSPSWs) are widely used as exterior walls and efficient lateral load resisting systems in modular building structures (MBS). In practical construction, the CSPSWs are usually accommodated with door or window openings and reinforced with steel strips. The effect of the steel strip reinforcement needs to be evaluated. An experimental study was conducted to investigate the seismic behavior of steel strip reinforced CSPSWs in modular steel structures. Six full-scale specimens were constrained at corners and loaded with cyclic lateral load. The results showed that that failure mode of this lateral load resisting system for the modular building structures was the facture of the weld between the frame beams and columns. The steel strip reinforcement had little effect on the ultimate strength, but could improve the behavior of stiffness, ductility and energy dissipation.