On the first order and buckling behaviour of thin-walled regular polygonal tubes

R. Gonçalves, D. Camotim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the results of an ongoing investigation concerning the structural behaviour of thin-walled single-cell regular convex polygonal section (RCPS) tubes, such as those widely employed in the construction industry. It is well-known that these tubes are highly susceptible to local (plate-type) deformations but, conversely, it is also true that their distortional behaviour has not been fully understood yet.Taking advantage of the unique modal decomposition features of Generalised BeamTheory (GBT) and its computationally efficient specialization for RCPS recently developed by the authors (Gonçalves & Camotim 2013a), the first-order and buckling (bifurcation) behaviours of RCPS tubes are characterised in this paper. The results presented show that the structural response of the RCPS tubes exhibits several peculiarities, which stem essentially from the cross-section rotational symmetry.

Original languageEnglish
Title of host publicationTubular Structures - Proceedings of the 15th International Symposium on Tubular Structures, ISTS 2015
PublisherCRC Press/Balkema
Pages653-660
Number of pages8
ISBN (Electronic)978-113802837-1
Publication statusPublished - 2015
EventProceedings of the 15th International Symposium on Tubular Structures, ISTS 2015 - Rio de Janeiro, Brazil
Duration: 27 May 201529 May 2015

Conference

ConferenceProceedings of the 15th International Symposium on Tubular Structures, ISTS 2015
CountryBrazil
CityRio de Janeiro
Period27/05/1529/05/15

Keywords

  • Construction industry;
  • Tubes (components)
  • Buckling behaviour
  • Computationally efficient
  • Modal decomposition
  • Rotational symmetries
  • Single cells
  • Structural behaviour
  • Structural response
  • Thin-walled

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