Detail publikace

St. Venant Torsion Stiffness of Thin-walled Beams with Holes

HORÁČEK, M. MELCHER, J.

Originální název

St. Venant Torsion Stiffness of Thin-walled Beams with Holes

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This paper deals with the problems of analysis and design of the thin-walled steel beams with web holes used in the storage systems and expedient flooring structures, in general. The verification of the St. Venant torsion stiffness is a partial step to determine the ultimate and design strength of the beams with respect to lateral torsion buckling. Usually the St. Venant torsion constant is derived from the parameters of cross-section weakened by hole and from the full cross-section. Based on weighted average of those values the substitute St. Venant torsion constant for the whole beam is being established. The calculated pure torsion parameters are verified by tests executed on three different lengths of beams (2, 3 and 4 meters). Also the profiles without any holes were tested for the comparison. The experiments were evaluated and the results are compared with the theoretical values. On the basis of the performed test results the formula for the St. Venant torsion constant of the thin-walled beams with the web holes has been derived.

Klíčová slova

torsion stiffness, beam, hole, lateral torsional buckling, warping

Autoři

HORÁČEK, M.; MELCHER, J.

Rok RIV

2011

Vydáno

31. 8. 2011

Nakladatel

ECCS European Convention for Constructional Steelwork

Místo

Hungary

ISBN

978-92-9147-103-4

Kniha

Proceedings of the 6th European Conference on Steel and Composite Structures

Číslo edice

1

Strany od

141

Strany do

146

Strany počet

6

BibTex

@inproceedings{BUT75901,
  author="Martin {Horáček} and Jindřich {Melcher}",
  title="St. Venant Torsion Stiffness of Thin-walled Beams with Holes",
  booktitle="Proceedings of the 6th European Conference on Steel and Composite Structures",
  year="2011",
  number="1",
  pages="141--146",
  publisher="ECCS European Convention for Constructional Steelwork",
  address="Hungary",
  isbn="978-92-9147-103-4"
}