水平和竖向地震激励下大型储液罐响应分析  

The Response Analysis of Liquid Storage Tank under Horizontal and Vertical Seismic Excitation

作　　者：陈贵清[1] 刘望峰[2] 赵晓波[2] 梁乐杰[2] 

机构地区：[1]唐山学院,河北唐山063000 [2]河北联合大学,河北唐山063000

出　　处：《唐山学院学报》2012年第6期33-36,共4页Journal of Tangshan University

基　　金：唐山市科技局项目(08160201A-1.6)

摘　　要：基于ANSYS软件建立了100km3锚固型大型储液罐模型,并对此进行了水平和竖向地震激励下的地震响应分析,地震波为EL-CENTRO波。计算结果表明,锚固型大型储液罐内液体的晃动、应力和应变在水平地震激励下比竖向地震激励下大很多,这说明水平地震激励是影响储液罐力学性状的主要因素之一。储液罐的应力和应变峰值发生在罐的中下部,而罐口变形较大。The finite element model of the 1×105 m3 anchored liquid-storage tank was set up based on ANASYS.The response of the tank in horizontal and vertical seismic excitation were analyzed,and the exciting seismic wave was EL-CENTRO wave.The results show that the sloshing of the liquid in the liquid-storage under horizontal seismic excitation is more wildly than that under vertical seismic excitation,and also the stress and strain under horizontal seismic excitation are greater than that under vertical seismic excitation.The result shows that the horizontal seismic excitation is one main factor that affects the mechanical properties of the liquid storage tank when earthquake happened.The peak values of the stress and the strain occurs at the middle or lower parts of the liquid storage tank,and deformation at port of the liquid storage tank is bigger than anywhere else.

关 键 词：大型储液罐 液体晃动 地震激励 应力 应变 

分 类 号：O353[理学—流体力学]