Publication result detail

Sensitivity and Reliability Analyses of Lateral-torsional Buckling Resistance of Steel Beams

KALA, Z.

Original Title

Sensitivity and Reliability Analyses of Lateral-torsional Buckling Resistance of Steel Beams

English Title

Sensitivity and Reliability Analyses of Lateral-torsional Buckling Resistance of Steel Beams

Type

WoS Article

Original Abstract

The presented paper deals with an analysis of the effects of random imperfections on the load carrying capacity of a steel beam, which is subjected to the effects of lateral-torsional buckling arising from equal and opposite end bending moments. The load carrying capacity of a hot-rolled steel beam was analyzed in the analytical form. Histograms obtained from experimental research were available for most imperfections. Realizations of the input imperfections were computed using the Latin Hypercube Sampling method. Global sensitivity analysis was used to identify those imperfections, whose variability has a dominant effect on the load carrying capacity. Sensitivity analysis identified three continuous intervals of beam slenderness in which the load carrying capacity is sensitive to different types of imperfections. Reliability of design according to the EUROCODE 3 standard was verified by performing the statistical analysis of the ultimate limit state.

English abstract

The presented paper deals with an analysis of the effects of random imperfections on the load carrying capacity of a steel beam, which is subjected to the effects of lateral-torsional buckling arising from equal and opposite end bending moments. The load carrying capacity of a hot-rolled steel beam was analyzed in the analytical form. Histograms obtained from experimental research were available for most imperfections. Realizations of the input imperfections were computed using the Latin Hypercube Sampling method. Global sensitivity analysis was used to identify those imperfections, whose variability has a dominant effect on the load carrying capacity. Sensitivity analysis identified three continuous intervals of beam slenderness in which the load carrying capacity is sensitive to different types of imperfections. Reliability of design according to the EUROCODE 3 standard was verified by performing the statistical analysis of the ultimate limit state.

Keywords

Steel beam, Buckling, Imperfection, Sensitivity analysis, Reliability

Key words in English

Steel beam, Buckling, Imperfection, Sensitivity analysis, Reliability

Authors

KALA, Z.

RIV year

2016

Released

16.04.2015

ISBN

1644-9665

Periodical

Archives of Civil and Mechanical Engineering

Volume

15

Number

4

State

Republic of Poland

Pages from

1098

Pages to

1107

Pages count

10

BibTex

@article{BUT120864,
  author="Zdeněk {Kala}",
  title="Sensitivity and Reliability Analyses of Lateral-torsional Buckling Resistance of Steel Beams",
  journal="Archives of Civil and Mechanical Engineering",
  year="2015",
  volume="15",
  number="4",
  pages="1098--1107",
  doi="10.1016/j.acme.2015.03.007",
  issn="1644-9665"
}