Optimisation of cold-formed steel sections for maximum energy dissipation capacity and strength

Jun Ye, Iman Hajirasouliha, Jurgen Becque, James Lim

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

Abstract

In this paper, a novel non-linear shape optimization method is presented. In a first step, ten different prototype CFS sections are optimized for maximum flexural strength based on EC 3. All EC 3 requirements, as well as specific manufacturing and construction con-straints, are taken into account in the optimisation process. Global optimal solutions are obtained through the Particle Swarm Optimisation (PSO) algorithm. Subsequently, the PSO algorithm is linked to an inelastic post-buckling analysis using ABAQUS and an optimisation is carried out towards maximum energy dissipation. It is shown that, for the same amount of material, both bending capacity and dissipated energy can be significantly increased.

Original languageEnglish
Title of host publicationProceedings of the International Colloquium on Stability and Ductility of Steel Structures, SDSS 2016
EditorsDan Dubina, Viorel Ungureanu
Place of PublicationBrussels
Pages435-442
Number of pages8
Publication statusPublished - 1 Jun 2016
EventInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2016 - Timisoara, Romania
Duration: 30 May 20161 Jun 2016

Conference

ConferenceInternational Colloquium on Stability and Ductility of Steel Structures, SDSS 2016
Country/TerritoryRomania
CityTimisoara
Period30/05/161/06/16

Keywords

  • cold-formed steel
  • energy dissipation
  • strength

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