Evaluating the Efficacy of Shear Connectors in H Steel Sections Embedded in Concrete

Section: Research Paper
Issue
Vol. 30 No. 1 (2025): Volume 30 Issue 1
Published
Mar 1, 2025
Pages
125-134

Abstract

This study is focusing on H steel sections embedded in concrete by evaluating various shear connectors, including headed studs, bolts, steel angles, perfobonds, and self-connected variants. This comprehensive examination of nine specimens aims to understand their load-bearing capacity, failure mechanisms, and overall performance in structural composite connections. The paper thoroughly compares and analyzes the load-slip curves, average initial shear stiffness, ultimate load, ductility, and fracture energy for these connectors. The research highlights self-connected connectors with rebars passing through flanges demonstrating substantial increases in ultimate load (41 %) in comparison to natural bond only, and maintaining ductility post-peak. Moreover, through this study it has been found that when shear studs and shear angles are designed for equivalent loads exhibit remarkably similar performance. Additionally, adding extra connectors to the web of H-sections enhances load capacity and stiffness but reduces ductility. The double shear in 10 mm diameter 8.8 bolted (with two nuts inside and outside flange) connectors raise the ultimate load but shift the curve of load slip from ductile to brittle in comparison with the same diameter studs.

References

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Authors

Alaulddin Abdulrahman AL-Jafal

Department of Civil Engineering, College of Engineering, University of Mosul, Mosul, Iraq

ORCID
Suhaib Yahya AL-Darzi

Civil Engineering Department, College of Engineering, University of Mosul, Mosul, Iraq

ORCID

Identifiers

https://doi.org/10.33899/arej.2024.149371.1357
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How to Cite

[1]
A. Abdulrahman AL-Jafal and S. Yahya AL-Darzi, “Evaluating the Efficacy of Shear Connectors in H Steel Sections Embedded in Concrete”, AREJ, vol. 30, no. 1, pp. 125–134, Mar. 2025.
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