Flexural behaviour of cold-formed steel square and rectangular hollow sections with moderate heat-treatment

Paola Pannuzzo, Tak Ming Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

This paper discusses the flexural behaviour of cold-formed square and rectangular hollow steel sections (SHSs and RHSs) with subsequent heat-treatment through experimental and numerical investigations. Firstly, an experimental programme comprising tensile coupon tests on flat and corner regions and three-point bending beam tests were conducted. A total of 12 specimens were tested under monotonic bending loads, covering a variety of section slenderness. Failure modes, moment-rotation curves and plastic hinge lengths have been evaluated highlighting the effect of the web-flange interaction on rotation capacity. Successively, experimental results were combined with numerical FE results to assess the corresponding moment and deformation capacities. Current cross-section classification limits given in Eurocode 3 and AISC 360–16 were assessed and new limits has been proposed.

Original languageEnglish
Article number107454
JournalJournal of Constructional Steel Research
Volume197
DOIs
Publication statusPublished - Oct 2022

Keywords

  • Bending tests
  • Cold-forming with heat-treatment
  • Cross-section classification
  • Finite element modelling
  • Structural hollow section

ASJC Scopus subject areas

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

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