Experimental and Numerical Evaluation of a Welded Demountable Shear Connector through Horizontal Pushout Tests

Ahmed S. H. Suwaed*, Jun He, George Vasdravellis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
105 Downloads (Pure)


A novel welded demountable shear connector for sustainable steel-concrete composite structures is proposed. The proposed connector consists of a grout-filled steel tube bolted to a compatible partially threaded stud, which is welded on a steel section. This connector allows for an easy deconstruction at the end of the service life of a building, promoting the reuse of both the concrete slabs and the steel sections. This paper presents the experimental evaluation of the structural behavior of the proposed connector using a horizontal pushout test arrangement. The effects of various parameters, including the tube thickness, the presence of grout infill, and the concrete slab compressive strength, were assessed. A nonlinear finite element model was also calibrated against the experimental results, and the validated numerical model was used to extend the validity of the experimental results and to perform further parametric studies. The experimental and numerical results show that the tested connectors have similar stiffness, but higher shear resistance and slip capacity compared with traditional welded shear studs and can be classified as ductile according to Eurocode 4.

Original languageEnglish
Article number04021274
JournalJournal of Structural Engineering (United States)
Issue number2
Early online date26 Nov 2021
Publication statusPublished - Feb 2022

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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