Experimental investigation of cold-formed stainless steel tubular T-joints with loaded chord

Mateus M. Nogueira, Luciano R.O. de Lima, André T. da Silva, Ben Young

Research output: Journal article publicationJournal articleAcademic researchpeer-review


This study focuses on the cold-formed stainless steel square hollow section (SHS) tubular T-joints prone to failure by chord sidewall yielding, crushing or instability under axial compression in brace member. An experimental investigation was conducted to understand the joint behaviour subjected to chord axial loading during the brace compression. The dimensions of the tubular sections were 80x80x2mm and 40x40x2mm, corresponding to 2γ values of 20 and 40, respectively. Based on the obtained experimental results, it was observed that the T-joint resistances decrease when subjected to chord compressive load, especially in the cases with elevated values for the chord sidewall slenderness (2γ). On the other hand, if a chord tension force is considered, an increase in the T-joint resistance is observed. With the results obtained from the tests, the design standards EN 1993-1-8 in association with EN 1993-1-4, NBR 16239, CIDECT, ISO 14346 and AISC 360-22 were assessed, as well as the predictions proposed by other authors from the literature. Finally, it was found that design codes are very conservative, except for AISC 360-22 [26], which provided unsafe predictions. On the other hand, equations proposed by other authors from the literature presented better results.

Original languageEnglish
Article number108856
JournalJournal of Constructional Steel Research
Publication statusPublished - Sept 2024


  • Chord side wall failure
  • Experimental analysis
  • Loaded chord
  • Stainless steel
  • Tubular Joints

ASJC Scopus subject areas

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


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