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基于ANSYS软件建立了考虑液体晃动和罐底提离的外浮顶立式储液罐有限元模型,并在罐壁与浮顶之间分别安装摩擦阻尼器和粘滞阻尼器,进行双向地震作用下结构被动控制减振分析。研究结果表明,储液罐液体晃动幅度、罐壁竖向压应力、罐底提离高度都有不同程度的减小,说明安装不同形式的阻尼器可以减轻储液罐地震灾害,从而有效提高外浮顶立式储液罐抗震能力。
Based on the ANSYS software, a finite element model of the vertical floating liquid storage tank considering liquid sloshing and tank bottom lift was established, and a friction damper and a viscous damper were installed between the tank wall and the floating roof respectively for bidirectional seismic action Under-structure passive control damping analysis. The results show that the amplitude of liquid tank sloshing, the vertical compressive stress on the tank wall and the height of the tank bottom are all reduced to some extent, indicating that installing different types of dampers can reduce the seismic disaster of the tank and thus effectively improve the performance of the tank Floating roof vertical tank anti-seismic capacity.