Section failure due to combined moment, shear and web crippling forces in cold-formed steel deckings

W. T. Tse, Kwok Fai Chung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This paper presents an experimental and numerical investigation into section failure due to combined moment, shear and web crippling forces of two common cold-formed steel deckings: re-entrant and trapezoidal deckings. A similar investigation into web crippling failure of both deckings is reported separately. In this paper, it is reported that a number of one point load tests on simply supported deckings are performed to study the structural behaviour of deckings under concentrated forces. Moreover, advanced three-dimensional finite element models with material, geometrical and boundary non-linearity are establish to simulate the section failure of these two deckings under combined moment, shear and web crippling forces. Comparison on both the section failure resistances and the deformed shapes at failure between the numerical and the test results is found to be highly satisfactory. Moreover, an extensive parametric study is performed to generate design data for section failure under combined actions in deckings with different steel grades and clear spans under a practical range of bearing lengths. It is shown that the proposed finite element models are effective to predict section failure in both deckings under combined actions. Furthermore, a simple and yet effective design rule is also proposed which employs directly the numerical results obtained from the parametric study. Further investigation will be carried out to validate the general applicability of the proposed finite element models and the design rules to cover other deckings with similar configurations and cross-section dimensions.
Original languageEnglish
Title of host publicationProceedings of the International Colloquium on Stability and Ductility of Steel Structures, SDSS 2006
Pages729-736
Number of pages8
Publication statusPublished - 1 Dec 2006
EventInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2006 - Lisbon, Portugal
Duration: 6 Sep 20068 Sep 2006

Conference

ConferenceInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2006
CountryPortugal
CityLisbon
Period6/09/068/09/06

Keywords

  • Cold-formed steel deckings
  • Combined actions
  • Design development
  • Finite element modeling
  • Moment
  • Shear forces
  • Web crippling forces

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality
  • Building and Construction

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