Research on Lateral Resistance of Small-Section Wooden Frame Shear Walls with Different Post-Beam Connections and Cladding Panel Types

Small-section wooden frame shear wall is composed of small-section frame columns (end columns), studs and cladding panels. There are few researches on the influence of beam-column connection mode and shear modulus of cladding panel on the lateral resistance of shear wall. The shear modulus characteristic values of different types of cladding panels were obtained through shear modulus test.On this basis, the quasi-static loading test and numerical simulation test were carried out on three walls with metal tenon, inclined nail connection and straight tenon-metal connection, two coniferous plywood walls with different thickness and two OSB board walls with different thickness, the failure mode, average stiffness, average strength, ductility coefficient and stiffness degradation law of the wall were obtained. The results showed that the average stiffness and average bearing capacity of walls with three connections were not significantly different, but the push-pull bidirectional performance of the wall with metal tenon connections was more stable. The characteristic value of the shear modulus of the coniferous plywood was 291.67 MPa, and that of the OSB board was 389.17 MPa; the stiffness and bearing capacity of 12 mm thickness plywood wall were 2.95% and 39.5% higher than those of OSB wall with the same thickness, and the stiffness and bearing capacity of 24 mm thickness plywood wall were 16.39% and 25.1% higher than those of OSB wall with the same thickness, respectively. The results further clarified the main influencing factors for the ateral performance of small-section wood frame shear wall, which could provide important guiding significance for the application and promotion of the system.