Seismic performance of modular buckling-restrained steel shear walls
Considering the cost-effectiveness and convenience,the modular buckling-restrained steel shear wall is introduced,as well as its commonly-used modulus.Based on the existing simplified calculation model of buckling-restrained steel shear wall,the demands on the strength and stiffness of its boundary beams are de-rived when the modular buckling-restrained steel shear wall gives full play to the seismic performance under different wall numbers.The design method for the surrounding beams is thus brought forward.Then,the com-parative experiments between modular wall and overall wall,as well as the corresponding finite element analy-sis are conducted.The results show that the modular wall can achieve the same seismic performance as that of the overall wall,and the surrounding beams do not undergo significant rotation neither obvious failure,indica-ting the feasibility of the brought-forward design method of the surrounding beams.When the drift ratio rea-ches 1/50,the boundary beams remain elastic.And the error between the finite element analysis and test re-sults in terms of yielding strength and initial stiffness is below 6％,which further verifies its seismic perform-ance.
modular buckling-restrained steel shear walldemands on boundary beamsdesign methodex-perimental validationfinite element analysis
万方数据
维普
