Abstract：Aspect ratio is one of the key factors that can influence the deformation and bearing capacity of walls, which can change their mechanism of moment-shear force. 4 shear walls with aspect raio of 1.0,1.5,2.0 and 2.5 were designed and were tested under horizontal low cyclic loading. The failure modes, strength and energy dissipation capacity of shear walls were studied. The results show that with the increase of transverse force, crack fractal factors increased, while with the decrease of aspect ratio, crack fractal factors increased, the failure mode transforms to bending failure from shear failure and the “arch” effect of the internal steel is worse than before, which make yield points and failure points decrease; Internal stress of the specimens with lower aspect ratio is mainly shear stress and the dislocation resistance between sections of the specimens contributes a lot to the lateral stiffness. Once the cross-sectional dislocation is overcome, the stiffness of the specimens degrade obviously; In the process of loading, the viscous damping coefficients of all specimens decrease first and then increase. The experimental results can provide reference for seismic research and design.
章红梅 蒋小星. 高宽比对RC剪力墙地震损伤性能影响特征的试验分析[J]. 土木工程学报, 2018, 51(S1): 122-126, 132.
Zhang Hongmei Jiang Xiaoxing. Experimental study of RC shear wall with different influence of the aspect ratio on the Aspect Ratio in seismic damage performance. 土木工程学报, 2018, 51(S1): 122-126, 132.
