A novel type of steel plate composite shear wall was presented.Four steel plate shear walls specimens and one composite shear wall with various ratio of width-thickness were tested by jack.The failure mode,the shear strength,the lateral stiffness,and the buckling mode were investigated by experiment.The results indicated that ratio of width-thickness of steel plate would determine the shear-carrying capacity and failure mode;and the small ratio of width-thickness of steel plate required adequate anchorage to avoid failure of boundary;although the lateral stiffness of steel plate has little enhancement by the precast concrete plate,the buckling strength and shear strength of steel plate wall were improved by them.Through theoretical analysis,the formula of shear strength of steel plate wall with trilateral constrained and one elastic restraint side,and the one of composite shear wall were proposed based on experiment and numerical simulation.At last,the thicknesses of precast concrete plate applied to steel plate wall with various ratio of width-thickness were presented.
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