Behaviour of cold-formed high strength steel tubular X-joints with circular braces and rectangular chords

Madhup Pandey, Ben Young

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper presents a test program to investigate the static strengths of cold-formed high strength steel X-joints made of circular hollow section braces and square as well as rectangular hollow sections chords. In total, 10 X-joints were tested under compression. The nominal yield strengths of tubular members were 900 and 960 MPa. The welding was performed using semi-automatic gas metal arc welding process. The measured value of brace-to-chord width ratio (β) ranged from 0.59 to 0.89 and chord width-to-thickness ratio (2γ) ranged from 20.5 to 30.5. Two failure modes were observed, namely chord face failure (F) and a combination of chord face and chord side wall failure modes (F+S). The static strengths obtained from tests were compared with nominal strengths predicted from Eurocode 3 and CIDECT. For the range of tests undertaken, it has been demonstrated that the current design rules in these specifications are quite conservative and inaccurate.

Original languageEnglish
Title of host publicationCurrent Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
EditorsAlphose Zingoni
PublisherCRC Press/Balkema
Pages1172-1177
Number of pages6
ISBN (Print)9781003348443
DOIs
Publication statusPublished - 2023
Event8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022 - Cape Town, South Africa
Duration: 5 Sep 20227 Sep 2022

Publication series

NameCurrent Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022

Conference

Conference8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022
Country/TerritorySouth Africa
CityCape Town
Period5/09/227/09/22

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Computational Mechanics

Fingerprint

Dive into the research topics of 'Behaviour of cold-formed high strength steel tubular X-joints with circular braces and rectangular chords'. Together they form a unique fingerprint.

Cite this