Experimental study on SCFs of empty SHS-SHS T-joints subjected to static out-of-plane bending

Feleb N. Matti, Fidelis R. Mashiri

Research output: Chapter in Book / Conference PaperConference Paper

Abstract

![CDATA[This paper presents an experimental study on stress concentration factors (SCFs) of empty (unfilled) square hollow section (SHS) T-joints specimens. Square hollow sections are extensively used for the columns and truss of numerous structures such buildings, bridges, cranes, glass houses and towers. However, there is limited investigation on SCFs of empty SHS-SHS T-joints under static out-of-plane bending loads which needs to be explored. As a result, there are no design guidelines for empty SHS-SHS T-joints under out-of-plane bending. To fulfill this research gap in the literature and develop the fatigue design rules of thin-walled SHS T-joints, four empty SHS-SHS T-joints were tested under static out-of-plane bending loads on the brace. The four empty T-joints are made up of empty SHS brace and empty SHS chord members. The nondimensional parameters of the SHS-SHS T-joints are Beta, 2Gamma and Tau. The range of each non-dimensional parameter of the SHS-SHS T-joint specimens used in this investigation are 0.25≤Beta≤1, 25≤2Gamma≤33.33 and 0.75≤Tau≤1. The distribution of the SCFs and the peak SCF at the hot spot locations (line A, B, C, D and E) of empty T-joints were determined by attaching strain gauges on the T-joint specimens. In summary, the maximum SCFs of the four SHS-SHS T-joints under out-of-plane bending commonly occurred along line B and C.]]
Original languageEnglish
Title of host publicationStability and Ductility of Steel Structures 2019: Proceedings of the International Colloquia on Stability and Ductility of Steel Structures (SDSS 2019), September 11-13, 2019, Prague, Czech Republic
PublisherStructural Stability Research Council
Pages770-777
Number of pages1
ISBN (Print)9780367335038
Publication statusPublished - 2019
EventInternational Colloquium on Stability and Ductility of Steel Structures -
Duration: 1 Jan 2019 → …

Conference

ConferenceInternational Colloquium on Stability and Ductility of Steel Structures
Period1/01/19 → …

Keywords

  • steel, structural
  • ductility
  • thin-walled structures
  • fatigue
  • stress concentration
  • joints (engineering)

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