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对一座形状不规则的、纵向刚度递减的框架-剪力墙结构采用黏滞阻尼墙和软钢阻尼墙两种减震方案进行减震效果对比分析。对未减震结构、设置黏滞阻尼墙减震结构和软钢阻尼墙减震结构进行7条地震波激励下的动力响应对比分析,结果表明,两种减震方案均能有效降低结构位移响应,位移减震效果两者均达到40%,楼层层间剪力结果表明设置黏滞阻尼墙减震效果达到35.68%,而软钢阻尼墙的层间剪力与未减震结构结果一致。以上结果说明框架-剪力墙结构尽管楼层位移较小,但黏滞阻尼墙由速度耗能给结构附加较多阻尼而减小地震力。软钢阻尼墙为位移型,由于楼层层间位移较小无法提供较大的耗能能力从而未能达到较好减震效果。
A comparison of the damping effect of two kinds of shock absorption schemes with viscous damping wall and mild steel damping wall is carried out on a frame-shear wall structure with irregular shape and decreasing longitudinal rigidity. By comparing the dynamic responses under seven seismic waves without damping structure and with viscous damping wall damping structure and mild steel damping wall damping structure, the results show that both damping solutions can effectively reduce the structural displacement response, The effect of displacement damping is 40%. The interlaminar shear results show that the damping effect of the viscous damping wall is 35.68%, while the interlaminar shear of the mild steel damping wall is consistent with that of the non-damping structure. The above results show that although the frame-shear wall structure has a small displacement, the viscous damping wall reduces the seismic force by adding more damping to the structure due to the speed-consuming energy dissipation. The soft steel damping wall is of the displacement type, which can not provide better damping effect due to the small displacement between floors.