Publication detail

Application of fuzzy set theory to serviceability limit state of steel beam under bending

VALEŠ, J. KALA, Z. MELCHER, J.

Original Title

Application of fuzzy set theory to serviceability limit state of steel beam under bending

English Title

Application of fuzzy set theory to serviceability limit state of steel beam under bending

Type

conference paper

Language

Czech

Original Abstract

In this article, deformations of an I-section steel beam under equal end moments are studied. An initial geometric imperfection of the beam axis according to Eurocode standard is applied. Former numerical studies showed that the lateral deflection of slender beam under major axis bending can be relatively high. The acceptability of high values of lateral deflections within the framework of serviceability limit state is discussed. In the next part of the paper, the limit value of maximum deflection was introduced as a fuzzy number. The fuzzy analysis of the maximum moment which causes the maximum deflection was carried out. The slendernesses of beams for which the serviceability limit state is the limiting state for design were identified.

English abstract

In this article, deformations of an I-section steel beam under equal end moments are studied. An initial geometric imperfection of the beam axis according to Eurocode standard is applied. Former numerical studies showed that the lateral deflection of slender beam under major axis bending can be relatively high. The acceptability of high values of lateral deflections within the framework of serviceability limit state is discussed. In the next part of the paper, the limit value of maximum deflection was introduced as a fuzzy number. The fuzzy analysis of the maximum moment which causes the maximum deflection was carried out. The slendernesses of beams for which the serviceability limit state is the limiting state for design were identified.

Keywords

Imperfekce, štíhlost, únosnost, použitelnost, citlivostní analýza, mezní stav, fuzzy analýza

Key words in English

Imperfekce, štíhlost, únosnost, použitelnost, citlivostní analýza, mezní stav, fuzzy analýza

Authors

VALEŠ, J.; KALA, Z.; MELCHER, J.

RIV year

2014

Released

16. 10. 2014

Location

Bratislava, Slovenská republika

ISBN

978-80-227-4259-7

Book

New Trends in Statics and Dynamics of Buildings

Pages from

1

Pages to

5

Pages count

5

BibTex

@inproceedings{BUT114227,
  author="Jan {Valeš} and Zdeněk {Kala} and Jindřich {Melcher}",
  title="Application of fuzzy set theory to serviceability limit state of steel beam under bending",
  booktitle="New Trends in Statics and Dynamics of Buildings",
  year="2014",
  pages="1--5",
  address="Bratislava, Slovenská republika",
  isbn="978-80-227-4259-7"
}