Compressive behavior of innovative hollow long fabricated columns utilizing high strength and ultra-high strength tubes

Fatemeh Javidan, A. Heidarpour, Xiao Ling Zhao, Jussi Minkkinen

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)

Abstract

Acomprehensive experimental study is carried out on the compressive behaviour of high strength innovative hollow columns. In terms of geometric appearance, the innovative square section of columns is the produced by welding steel tubes with nominal diameter-to-thickness ratio of 23.78 to mild steel plates with a
nominal width-to-thickness ratio of 70. The tubes are of three types of mild, high strength (HS) and ultra-high strength (UHS) steel with nominal tensile strength of 890MPa and 1380MPa, respectively. The connection of high strength tubes to the sides of plates causes a satisfactory increase in the ductility and improves local buckling behaviour of each mild steel plate whilst the restraint provided by plates enhances the resistance of each tube against global buckling. This effective interaction between the elements leads to taking advantage of the
high strength of tubes and, simultaneously, keeping the weight of the section as low as possible. Experimental outcomes of steel columns containing tubes are compared with similar columns without tubes, showing a significant increase in the peak compressive load and ductility.
Original languageEnglish
Title of host publicationTubular Structures XV
Subtitle of host publication Proceedings of the 15th international symposium on tubular structures
EditorsEduardo Batista, Pedro Vallasco, Luciano Lima
Place of PublicationLondon UK
PublisherTaylor & Francis
Pages319 - 325
Number of pages7
ISBN (Print)9781138028371
Publication statusPublished - 2015
EventInternational Symposium on Tubular Structures 2015 - Rio de Janeiro Brazil, Rio, Brazil
Duration: 27 May 201529 May 2015

Conference

ConferenceInternational Symposium on Tubular Structures 2015
CountryBrazil
City Rio
Period27/05/1529/05/15

Cite this

Javidan, F., Heidarpour, A., Zhao, X. L., & Minkkinen, J. (2015). Compressive behavior of innovative hollow long fabricated columns utilizing high strength and ultra-high strength tubes. In E. Batista, P. Vallasco, & L. Lima (Eds.), Tubular Structures XV: Proceedings of the 15th international symposium on tubular structures (pp. 319 - 325). London UK: Taylor & Francis.