双向地震作用下外浮顶立式储液罐被动控制减振分析

英文篇名：PASSIVE CONTROL VIBRATION REDUCING ANALYSIS OF LARGE ELEVATED LIQUID-STORAGE TANK WITH OUTSIDE FLOATING ROOF UNDER BIDIRECTIONAL EARTHQUAKE
中文刊名：工业建筑
英文刊名：Industrial Construction
作者：穆海艳 ; 孙跃洲
英文作者：Mu Haiyan Sun Yuezhou(Capital Engineering & Research Incorporation Limited ; Bejing 100176 ; China)
中文关键词：立式储液罐 ; 外浮顶 ; 摩擦阻尼器 ; 粘滞阻尼器 ; 双向地震
英文关键词：elevated liquid-storage tank ; outside floating roof ; frictional damper ; viscous damper ; bidirectional earthquake
出版日期：2013-06-20
机构：中冶京诚工程技术有限公司工业建筑院;
年：2013
期：S1
出版单位：工业建筑

摘要

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。
This paper introduces the ANSYS finite element model of large elevated liquid-storage tank with outside floating which involves the fluid sloshing and tank bottom uplift.The viscous damper and the frictional damper are installed between the floating roof and rigid wall of the tank,a passive control vibration reducing analysis is carried out in order to reduce the loss of the large elevated liquid-storage tank in earthquake respectively.The results show that the amplitude of fluid sloshing,the vertical compressive stress,the hoop tensile stress and the height of the bottom tank uplift are all reduced by installing dampers.The results also illustrate that the seismic response of the large elevated liquid-storage tank can be effectively reduced by erecting different types of dampers.

引文

[1]SLONE A K,PER ICLEOUS K,BA ILEY C,et al.Dynamic Flu-id-Structure Interaction Using Finite Volume Unstructured MeshProcedures[J].Computers and Structures,2002,80(5):371-390.
    [2]HAMDAN F H.Seismic Behavior of Cylindrical Steel Liquid Stor-age Tank[J].Journal of Construction Steel Research,2000,553(12):307-333.
    [3]AGHAJARI S,ABEDI K,SHOWKATI H.Buckling and Post-Buckling Behavior of Thin-Walled Cylindrical Steel Shells With Va-rying Thickness Subjected to Uniform External Pressure[J].Thin-Walled Structures,2006,44(8):904-909.
    [4]CHO J R,SONG JM,LEE JK.Finite Element Techniques for theFree-Vibration and Seismic Analysis of Liquid-Storage Tank[J].Finite Elements in Analysis and Design,2001,37(6-7):467-483.
    [5]MALHOTRA P K,VELETSOS A S.Uplifting Response of Unan-chored Liquid-Storage Tanks[J].Journal of Structural Engineer-ing,1994,120(12):3525-3546.
    [6]MALHOTRA PK.Base Uplifting Analysis of Flexibly SupportedLiquid-Storage Tanks[J].Earthquake Engineering and StructuralDynamics,1995,24(12):1591-1607.
    [7]TA JIR IAN F E.Seismic Isolation of Critical Components andTank[J].Passive Energy Dissipations and Active Control 1993,17(1):233-244.
    [8]孙建刚.立式储液罐地震响应控制研究[D].哈尔滨:中国地震局工程力学研究所,2002.
    [9]孙建刚,齐晗兵,王莉莉.双参数立式储罐隔震设计[J].哈尔滨工业大学学报,2008,40(6):970-973.
    [10]SHRIMAL IM K,JANGID R S.Seismic Response of Liquid Stor-age Tanks Isolated by Sliding Bearings[J].Journal of EngineeringStructure,2002,24(7):907.
    [11]穆海艳.立式储液罐地震反应分析及被动控制方法研究[D].哈尔滨:哈尔滨工业大学,2006.