环梁滑移与钢筋并联隔震装置设计研究

Ring Beam Sliding and Re-bar Parallel Isolation Device

为了降低储罐的地震响应,提出了环梁滑移与钢筋并联隔震装置,通过ADINA程序建立了适用于1 000 m3储罐地震振动台实验缩尺1∶4的环梁滑移与钢筋并联隔震装置的有限元模型,研究其在不同摩擦系数、储液高度、烈度、位移等参数影响下隔震装置的刚度,并与理论解进行了对比。结果表明,隔震装置设计时需要综合考虑选取最佳设计参数,满足储罐隔震装置水平刚度的要求,以期达到降低储罐地震响应的目的。

To reduce earthquake response of liquid storage tank, the Ring Beam Sliding and Re -bar Parallel Isolation Device has been presented. The scaled 1 ： 4 finite element model of the ring beam sliding and re - bar parallel isolation device which applied to vibration platform of 1000m3 storage tank have been established. Under frictional coefficient, liquid storing heights, intensities and displacement impacts, the isolation device stiffness has been investigated and has the comparison with the theory. The results show that the design of the isolation device requires the comprehensive consideration to choose the best design parameter in order to meet the re- quirement of the horizontal stiffness and reduce earthquake response.