Study on the bearing capacity calculation method of insulated sandwich composite panels with steel plate connectors under vertical loading
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.
万方数据
维普
