Seismic Response Analysis of LNG Storage Tank under the Vertical Earthquake Excitation

Abstract

Use Adina finite element software, established the finite element model of the the volume 10000m3LNG storage tank, against the concrete outer tank of full containment type LNG storage tank vertical seismic action seismic response analysis. Take acceleration seismic input method, select the four categories venue seismic waves, LNG storage tank stress analysis of vertical seismic action, come in different earthquake LNG storage tank outer tank equivalent stress, hoop stress and axial stress distribution.

A Mode Matching Technique for the Seismic Response of Liquid Storage Tanks Including Soil-Structure Interaction

“…This allows an analytical treatment of the problem [15]. The total liquid potential is decomposed into three velocity potentials, namely: (i) φ (1) (r, θ, z, t) which satisfies the homogeneous boundary conditions at z = 0 and z = H l as well as the imposed kinematic constraint at the interface with the wall; (ii) φ (2) (r, θ, z, t) which satisfies the homogeneous boundary conditions at r = R and z = H l , and the imposed kinematic constraint at the interface with the plate; and (iii) φ (3) (r, θ, z, t) which does not alter the conditions satisfied already at z = 0 and r = R but allows exact satisfaction of the boundary condition at z = H l .…”

“…The dynamic response of liquid storage tanks subjected to ground excitation has been a subject of continuous research over the past decades [1]. Despite the many modelling techniques available, most models can be classified into two broad categories: Finite Element (FE) models [2] and simplified mechanical analogues with a few degrees of freedom [3,4].…”

Seismic response of the outer shell of a liquefied natural gas storage tank using a semi-analytical dynamic substructuring technique

“…In general, the methods proposed by different authors for the solution of the fluid-tank-soil interaction problem can be classified into two major groups. On the one hand, one encounters detailed finite element (FE) models which account for the exact geometry of the vibrating system together with the motion of the liquid (Kianoush et al, 2006;Sezen et al, 2008;Zhou et al, 2013). Finite element models are often coupled to boundary elements (BE) in order to account for the soil-structure interaction (Kim et al, 2002).…”