To explore the mechanical performance of steel plate connectors in sandwich insulation composite walls,we conducted experiments and numerical simulations,varying parameters such as insulation layer thickness,connector height,cross-sectional thickness,and eccentricity distance.We analyzed the bending-shear and bending-torsion capabilities of the connectors.Utilizing the fourth strength theory,we derived formulas for bending-shear and bending-torsion capacities,factoring in insulation layer thickness,connector bending resistance section modulus,and eccentricity distance.The accuracy of the capacity formulas was confirmed through a±15％confidence interval.Our findings reveal that,under vertical loading,the connectors experience yield failure,determining the wall's failure mode.The bending resistance section modulus significantly influences bending-shear capacity,surpassing the impact of insulation layer thickness.Similarly,eccentricity distance and bending resistance section modulus have a more pronounced effect on bending-torsion capacity than insulation layer thickness.The derived capacity formulas exhibit high precision,establishing a robust theoretical foundation for practical engineering applications.
维普
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