Publication detail

Lateral Torsional Buckling of Beams with Web Holes - Finite Element Analysis and Experimental Verification

HORÁČEK, M. MELCHER, J.

Original Title

Lateral Torsional Buckling of Beams with Web Holes - Finite Element Analysis and Experimental Verification

Type

conference paper

Language

English

Original Abstract

This paper deals with the problems of analysis and design of thin-walled steel beams with circular web holes. The analysis is being performed on the perforated sigma beams used in the expedient flooring structures as floor girders which are subjected to the bending. In some cases the beams are not laterally restraint and the effect of lateral torsional buckling may occur. The characteristic bending resistances with respect to lateral torsional buckling are calculated in accordance with Eurocode design procedure using the cross-section properties of the substitute cross-section. In order to verify the results of EC calculations, the finite element analysis is being performed. Additionally the experimental verification on the beams of three different lengths is executed. The results of finite element analysis are compared with characteristic bending resistances calculated according the EN 1993-1-1 for the substitute cross-section properties. The bending resistances derived from tests are compared with the characteristic bending resistances calculated according the EN 1993-1-1 for the effective cross-section properties determined by testing.

Keywords

lateral torsional bucking, thin-walled beams, web holes, substitute cross-section, reduced thickness of web, finite element method, experimental verification

Authors

HORÁČEK, M.; MELCHER, J.

RIV year

2014

Released

10. 9. 2014

Publisher

ECCS European Convention for Constructional Steelwork

Location

Napoli

ISBN

978-92-9147-121-8

Book

EUROSTEEL 2014 Proceedings of 7th European Conference on Steel and Composite Structures

Pages from

439

Pages to

440

Pages count

2

BibTex

@inproceedings{BUT110089,
  author="Martin {Horáček} and Jindřich {Melcher}",
  title="Lateral Torsional Buckling of Beams with Web Holes - Finite Element Analysis and Experimental Verification",
  booktitle="EUROSTEEL 2014 Proceedings of 7th European Conference on Steel and Composite Structures",
  year="2014",
  pages="439--440",
  publisher="ECCS European Convention for Constructional Steelwork",
  address="Napoli",
  isbn="978-92-9147-121-8"
}