LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour

In this paper, the dome of a tank in the Świnoujście LNG terminal is analysed. Some of the rafter ribs at the connection with hangers were not mounted during construction of the tank dome. Therefore, it has become necessary to estimate its response, which has been done with the aid of some computati...

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Main Author: Sobczyk Bartosz
Format: Article
Language:English
Published: Sciendo 2020-12-01
Series:Polish Maritime Research
Subjects:
Online Access:https://doi.org/10.2478/pomr-2020-0074
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author Sobczyk Bartosz
author_facet Sobczyk Bartosz
author_sort Sobczyk Bartosz
collection DOAJ
description In this paper, the dome of a tank in the Świnoujście LNG terminal is analysed. Some of the rafter ribs at the connection with hangers were not mounted during construction of the tank dome. Therefore, it has become necessary to estimate its response, which has been done with the aid of some computational models of the dome, that have been created in the finite element method environment. Different local models are studied, aiming to recreate possible outermost conditions of the tank dome response, i.e. with or without composite action between steel and concrete parts of the tank dome. Static calculations with material and geometric nonlinearities are carried out on the computational models, enabling the creation of a load capacity envelope of the rafter with or without ribs. The obtained results are then used to decide if repair works need to be done and whether the missing ribs should be welded.
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spelling doaj.art-ba1b71837dab40ed886f08518fa6666b2022-12-21T22:37:52ZengSciendoPolish Maritime Research2083-74292020-12-0127413914710.2478/pomr-2020-0074pomr-2020-0074LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements BehaviourSobczyk Bartosz0Gdańsk University of Technology, PolandIn this paper, the dome of a tank in the Świnoujście LNG terminal is analysed. Some of the rafter ribs at the connection with hangers were not mounted during construction of the tank dome. Therefore, it has become necessary to estimate its response, which has been done with the aid of some computational models of the dome, that have been created in the finite element method environment. Different local models are studied, aiming to recreate possible outermost conditions of the tank dome response, i.e. with or without composite action between steel and concrete parts of the tank dome. Static calculations with material and geometric nonlinearities are carried out on the computational models, enabling the creation of a load capacity envelope of the rafter with or without ribs. The obtained results are then used to decide if repair works need to be done and whether the missing ribs should be welded.https://doi.org/10.2478/pomr-2020-0074ultimate capacitylocal analysisnonlinear equilibrium pathsfinite element method (fem)
spellingShingle Sobczyk Bartosz
LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
Polish Maritime Research
ultimate capacity
local analysis
nonlinear equilibrium paths
finite element method (fem)
title LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
title_full LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
title_fullStr LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
title_full_unstemmed LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
title_short LNG Tank in Świnoujście: Nonlinear Analysis of the Tank Dome Elements Behaviour
title_sort lng tank in swinoujscie nonlinear analysis of the tank dome elements behaviour
topic ultimate capacity
local analysis
nonlinear equilibrium paths
finite element method (fem)
url https://doi.org/10.2478/pomr-2020-0074
work_keys_str_mv AT sobczykbartosz lngtankinswinoujscienonlinearanalysisofthetankdomeelementsbehaviour