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以高烈度区某含较多短柱的钢筋混凝土框架结构为研究对象,针对结构短柱受剪承载力及弹性层间位移角不满足规范要求问题,采用非线性黏滞阻尼器对该框架结构进行减震设计,进行了多遇和罕遇地震作用下的非线性时程分析。分析结果表明,设置非线性黏滞阻尼器后,有效降低了短柱剪力,使之满足规范受剪承载力设计要求;结构层间位移角显著减小,多遇和罕遇地震作用下的最大减震效果分别为56.43%和28.32%,非线性黏滞阻尼器在多遇和罕遇地震作用下均具有良好的耗能能力。
Taking the reinforced concrete frame structure with more short columns in the high intensity area as the research object, in view of the problem that the short-column shear strength and the displacement angle of the elastic layer do not satisfy the standard requirements, the nonlinear viscous damper is used to analyze the frame structure The damping design was carried out, and the nonlinear time history analysis was carried out under the action of frequent and rare earthquakes. The results show that the nonlinear viscous damper can effectively reduce the shear stress of the short column to meet the design requirements of the standard shear capacity; the displacement angle between the structural layers is significantly reduced, and under the action of frequent and rare earthquakes The maximum damping effect is 56.43% and 28.32% respectively. The nonlinear viscous dampers have good energy dissipation ability under the action of frequent and rare earthquakes.