Reliability Analysis of the Lateral Torsional Buckling Resistance and the Ultimate Limit State of Steel Beams with Random Imperfections

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU117485" target="_blank" >RIV/00216305:26110/15:PU117485 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3846/13923730.2014.971130" target="_blank" >http://dx.doi.org/10.3846/13923730.2014.971130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3846/13923730.2014.971130" target="_blank" >10.3846/13923730.2014.971130</a>

Result language

angličtina

Original language name

Reliability Analysis of the Lateral Torsional Buckling Resistance and the Ultimate Limit State of Steel Beams with Random Imperfections

Original language description

The paper deals with the analysis of reliability of a hot-rolled steel IPE-beam designed according to Eurocodes. A beam at its ultimate limit state is considered. The load acting on the beam consists of permanent and long-term single variation actions. The beam is loaded with end bending moments about the major principal axis. The beam is susceptible to lateral torsional buckling between the end supports. Reliability of the beam is assessed using probabilistic analysis based on the Monte Carlo method. Failure probability is a function of the random variability of the load carrying capacity and the random variability of load effects. The variability of the load-carrying capacity is influenced by the variability of initial imperfections. Imperfections are considered according to experimental research. Numerical studies showed that the failure probability is significantly misaligned. High values of failure probability were obtained for slender beams, for beams loaded only by permanent load action, and for beams loaded only by long-term single variation load. In further studies the values of partial safety factors of load and resistance were calibrated so that the failure probability had a target value of 7.2E–5. Relatively high values of partial safety factors were obtained especially for beams with high slenderness.

Czech name

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Czech description

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Type

J_imp - 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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of civil engineering and management

ISSN

1392-3730

e-ISSN

1822-3605

Volume of the periodical

21

Issue of the periodical within the volume

7

Country of publishing house

LT - LITHUANIA

Number of pages

10

Pages from-to

902-911

UT code for WoS article

000357732700007

EID of the result in the Scopus database

2-s2.0-84938871716