Probabilistically modelled geometrical imperfections for reliability analysis of vertically loaded steel frames
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU152616" target="_blank" >RIV/00216305:26110/24:PU152616 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0143974X24001779" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0143974X24001779</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcsr.2024.108627" target="_blank" >10.1016/j.jcsr.2024.108627</a>
Alternative languages
Result language
angličtina
Original language name
Probabilistically modelled geometrical imperfections for reliability analysis of vertically loaded steel frames
Original language description
The article explores the stochastic modelling of 3D steel frames under static vertical load, with a main focus on random initial geometrical imperfections. The random input parameters for initial geometrical imperfections are derived from the tolerance criteria in accordance with European standard. In order to derive statistical parameters from the corresponding standard tolerances, two methods noted as #RSS (random storey sway) and #RSP (random storey position) have been utilized and compared. Both of these methods are used along with the firstorder reliability method (FORM) and the advanced finite element method (FEM) - geometrically and materially nonlinear imperfect analysis (GMNIA) to numerically analyse several geometries of steel frame structures. Ultimate resistances of these structures are monitored and basic sensitivity studies are conducted. The results are also compared with the deterministic approach of the European standard. The stochastic approach of the FORM to estimate the ultimate resistance of steel frame structures serves as a verification tool of the classic, in engineering praxis widely used, deterministic approach. This study provides useful provisions for the advanced numerical analyses of steel frames of various geometries. Additionally, the estimations of ultimate resistance by the deterministic European standard approach is verified for selected frame geometries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GA23-04712S" target="_blank" >GA23-04712S: Importance of Stochastic Interactions in Computational Models of Structural Mechanics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
ISSN
0143-974X
e-ISSN
1873-5983
Volume of the periodical
217
Issue of the periodical within the volume
06.2024
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
1-15
UT code for WoS article
001218379100001
EID of the result in the Scopus database
2-s2.0-85189097100