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Article

Numerical Analysis of the Bond Behaviour of High-Strength Concrete-Filled Steel Square Columns with Different Shear Connectors

by
Mouloud Boudali Errebai
1,
Abd Nacer Touati Ihaddoudene
1 and
Messaoud Saidani
2,*
1
Built Environment Laboratory (L.B.E.), Civil Engineering Faculty, University of Sciences and Technology Houari Boumediene (USTHB), BP 32 El Alia, Bab Ezzouar, Algiers 16111, Algeria
2
Research Centre of Manufacturing and Materials, Coventry University, Priory Street, Coventry CV1 5FB, UK
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2024, 8(11), 443; https://doi.org/10.3390/jcs8110443
Submission received: 7 September 2024 / Revised: 22 October 2024 / Accepted: 25 October 2024 / Published: 30 October 2024
(This article belongs to the Special Issue Novel Cement and Concrete Materials)

Abstract

This paper deals with a numerical method of analysis of the performance of shear connectors in transferring load in high-strength concrete-filled steel tube square sections. The novelty of the model is that it considers all the important parameters that affect performance at once: bond strength, the transfer rate of each connector, and the stress distribution and deformation of each element. Four specimens fabricated using different types of connectors were validated using ABAQUS version 2017 software. The deformation of the connectors, concrete damage, and the local instability of the steel tube were extensively investigated. The main parameters considered were the ultimate bond strength and load transfer ratio. The shear connector arrangement consisting of four specimens, namely C1 with 16 studs, a circular rib (C2), a circular rib with 8 studs (C3), and a circular rib with 8 vertical ribs (C4), had a significant influence on the key parameters. Connectors C2, C3, and C4 transferred more than 80% of the total load. The circular rib was more effective in transferring the load and limiting slip than the vertical rib and the studs. The circular rib (C2) transferred the load mainly through the four corners. The deterioration of the concrete and local instability of the steel tube had complex deformations which were influenced by the geometry of the inserted connectors.
Keywords: concrete-filled steel tube; connectors; bond strength; load transfer; circular ribs concrete-filled steel tube; connectors; bond strength; load transfer; circular ribs
Graphical Abstract

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MDPI and ACS Style

Boudali Errebai, M.; Ihaddoudene, A.N.T.; Saidani, M. Numerical Analysis of the Bond Behaviour of High-Strength Concrete-Filled Steel Square Columns with Different Shear Connectors. J. Compos. Sci. 2024, 8, 443. https://doi.org/10.3390/jcs8110443

AMA Style

Boudali Errebai M, Ihaddoudene ANT, Saidani M. Numerical Analysis of the Bond Behaviour of High-Strength Concrete-Filled Steel Square Columns with Different Shear Connectors. Journal of Composites Science. 2024; 8(11):443. https://doi.org/10.3390/jcs8110443

Chicago/Turabian Style

Boudali Errebai, Mouloud, Abd Nacer Touati Ihaddoudene, and Messaoud Saidani. 2024. "Numerical Analysis of the Bond Behaviour of High-Strength Concrete-Filled Steel Square Columns with Different Shear Connectors" Journal of Composites Science 8, no. 11: 443. https://doi.org/10.3390/jcs8110443

APA Style

Boudali Errebai, M., Ihaddoudene, A. N. T., & Saidani, M. (2024). Numerical Analysis of the Bond Behaviour of High-Strength Concrete-Filled Steel Square Columns with Different Shear Connectors. Journal of Composites Science, 8(11), 443. https://doi.org/10.3390/jcs8110443

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