Wölbkrafttorsion an einzelligen schlanken Kastenquerschnitten - Analyse des Beultragverhaltens und vereinfachter Nachweis

Translated title of the contribution: Warping torsion on slender box sections - Buckling analyses and simplified design verification

Research output: Contribution to journalArticlepeer-review

Abstract

Warping torsion on slender box sections – buckling analyses and simplified design verification. Steel members subjected in torsion often have box sections. In general, such sections show warping effects and therefore also local warping stresses (Σ Ω, τ Ω) arise, beside torsional shear stresses τ sv. The main object of this work is to clarify, whether for slender sections a buckling verification of an isolated section member (web or chord) with torsional shear stresses τ sv only, gives accurate results. First an analysis of the warping stress fields of different box sections (variation of geometry, thicknesses of web and chord and member length) is presented. Based on a preliminary buckling verification, with and without warping stresses, representative cases are selected. For this individual box section members comprehensive GMNIA-analysis were done, on the overall system (including all warping effects) as well as on the isolated web plate without warping effects. In addition, also members with torsion and additional axial forces or bending moments are analysed.

Translated title of the contributionWarping torsion on slender box sections - Buckling analyses and simplified design verification
Original languageGerman
Pages (from-to)214-228
Number of pages15
JournalStahlbau
Volume89
Issue number3
DOIs
Publication statusPublished - 2020

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Building and Construction
  • Civil and Structural Engineering

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