RESEARCH ON STRUCTURAL INFLUENCING COEFFICIENT OF STEEL PLATE SHEAR WALL

Technical Specificatiors for Steel Plate Shear Walls(JGJ/T 380—2015) do not involve specific values for the structural influence coefficient and the displacement amplification factor of the steel plate shear wall. According to Code for Seismic Design of Buildings(GB 50011—2010), the steel plate shear wall structures of the A and B groups with 4, 8, and 12 layers were designed. the displacement amplification factor and the structural influence coefficient of the single frame plane and the integrall steel shear wall structure were obtained under uniform load and inverted triangle load with Pushover analytical method by Midas/Gen. It was shown that: the structural influence coefficient and the displacement amplification factor of the single frame and the integral steel plate shear wall structure in the uniform load mode were generally larger than that in inverted triangle loading mode. The structural influence coefficient and the displacement amplification factor of the single frame shear wall structure were larger than the corresponding coefficients of the integral steel shear wall structure. The coefficient and the factor calculated by the single frame structure couldn’t replace the integral steel shear wall structure calculated coefficient. It was suggested that the structural influence coefficient and displacement amplification factor of the steel plate shear wall structure with no more than 12 layers should be 3.25 and 6.45.