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提出了适用于低层及多层建筑结构的锥形非固结隔震结构的新型减震结构体系和锥形非固结隔震支座,为了研究锥形非固结隔震结构的减震机理、减震效果和支座力学性能,对粘弹性材料和锥形隔震支座进行静力试验研究。试验研究结果表明两种粘弹性材料具有相似的耗能能力;支座具有较大的竖向刚度、竖向耗能能力有限;支座水平滞回曲线饱满,曲线呈现出双锥形,在不同参数下等效阻尼比为15%～35%。
In this paper, a new type of shock-absorbing structural system and a cone-shaped non-consolidated vibration-isolating bearing are proposed for tapered unconsolidated seismic isolation structures in low and multi-story structures. In order to study the damping mechanism , The damping effect and the mechanical properties of the support, the static tests on the viscoelastic material and the cone-shaped seismic isolation support were carried out. The experimental results show that the two viscoelastic materials have similar energy dissipation capacity. The bearing has a large vertical stiffness and a limited vertical energy dissipation capacity. The horizontal hysteretic curve of the bearing is full and the curve shows a double cone. The equivalent damping ratio under the parameters is 15% ~ 35%.