diplomska naloga
Luka Vidic (Author), Darko Beg (Mentor), Janko Logar (Thesis defence commission member), Maruška Šubic Kovač (Thesis defence commission member), Franc Sinur (Co-mentor)

Abstract

Primerjava tehničnih predpisov za potresno analizo rezervoarjev

Keywords

gradbeništvo;UNI;jekleni rezervoarji;standardi;priporočila;primerjava;notranje sile;napetosti;Matlab;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [L. Vidic]
UDC: 624.014.2:624.04(043.2)
COBISS: 5889121 Link will open in a new window
Views: 1914
Downloads: 505
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Other data

Secondary language: English
Secondary title: Comparison of technical regulations for seismic analysis of storage tanks
Secondary abstract: In my thesis I compared 4 different regulations for seismic analysis of storage tanks (SIST EN 1998-4, API 650 and EN 14015 standard and New Zealand recommendations). Each regulation has different approach for determening and ensuring stability of storage tanks during earthquake excitation. New Zealand recommendations and Eurcode standard are similar beacuse they both involve deformability of storage tanks. The simpliest is EN 14015 standard because we can determine only longitudinal compressive stresses. In API 650 standard we can determine longitudinal compressive and tensile hoop stresses. All standards and recommendatios give similar results for small ratio of h/R (h is filling height of liquid and R is radius of storage tank) and very different results for heigher values due to (non)consideration of deformability of storage tank. Interaction between soil and tank is also important beacuse it can increase natural period of the tank which can result in increasing values in spectral response. Soil – structure interaction is considered only in Eurocode standard and New Zealand recommendations. In my thesis I wrote a computer program in Matlab in which we can easily check stability of storage tanks and if appropriate controls are satisfied.
Secondary keywords: graduation thesis;steel storage tanks;standards;recommendations;comparison;internal forces;tension;Matlab;
File type: application/pdf
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: XIX, 169 str.
Type (ePrints): thesis
Title (ePrints): Comparison of technical regulations for seismic analysis of storage tanks
Keywords (ePrints): jekleni rezervoarji;standardi;priporočila;primerjava;notranje sile;napetosti;Matlab
Keywords (ePrints, secondary language): steel storage tanks;standards;recommendations;comparison;internall forces;tension;Matlab
Abstract (ePrints): V diplomski nalogi sem med seboj primerjal različne standarde in priporočila za potresno analizo rezervoarjev (SIST EN 1998-4, API 650 ter EN 14015 standard in Novo Zelandska priporočila-NZSE), kjer sem poizkusil ugotoviti glavne razlike med njimi. Vsak standard oz. priporočilo ima drugačen pristop in kontrole za zagotavljanje stabilnosti rezervoarja. Med seboj sta si najbolj podobna Evrokod standard in Novo Zelandska priporočila, saj med drugim upoštevata vpliv deformabilnosti rezervoarja in možno rotacijo dna rezervoarja. Najbolj preprost je EN 14015 standard, kjer lahko določimo samo tlačne vzdolžne napetosti. Pri API 650 standardu pa kontroliramo tlačne in obodne napetosti. Standardi in priporočilo podajo podobne vrednosti pri majhnih razmerjih h/R (h – višina polnjenja rezervoarja, R – polmer rezervoarja) in zelo različne vrednosti pri višjih razmerjih, kjer pride do vpliva deformabilnosti rezervoarja. Vpliv interakcije med rezervoarjem in zemljino je pomemben, saj se z interakcijo povečajo nihajni časi, kar lahko privede do povišanih/zmanjšanih vrednosti v spektru odziva. Vpliv interakcije upoštevata samo Evrokod standard in Novo Zelandska priporočila. V sklopu diplomske naloge sem izdelal tudi program v Matlabu, kjer na preprost način preverimo stabilnost rezervoarja in ali so ustrezne kontrole za posamezen standard oz. priporočilo izpolnjene.
Abstract (ePrints, secondary language): In my thesis I compared 4 different regulations for seismic analysis of storage tanks (SIST EN 1998-4, API 650 and EN 14015 standard and New Zealand recommendations). Each regulation has different approach for determening and ensuring stability of storage tanks during earthquake excitation. New Zealand recommendations and Eurcode standard are similar beacuse they both involve deformability of storage tanks. The simpliest is EN 14015 standard because we can determine only longitudinal compressive stresses. In API 650 standard we can determine longitudinal compressive and tensile hoop stresses. All standards and recommendatios give similar results for small ratio of h/R (h is filling height of liquid and R is radius of storage tank) and very different results for heigher values due to (non)consideration of deformability of storage tank. Interaction between soil and tank is also important beacuse it can increase natural period of the tank which can result in increasing values in spectral response. Soil – structure interaction is considered only in Eurocode standard and New Zealand recommendations. In my thesis I wrote a computer program in Matlab in which we can easily check stability of storage tanks and if appropriate controls are satisfied.
Keywords (ePrints, secondary language): steel storage tanks;standards;recommendations;comparison;internall forces;tension;Matlab
ID: 8312481