Experimentally Investigating the Strengthening Effect of NSM-GFRP Bars on the Capacity of RC Slabs

Author's Department

Construction Engineering Department

Third Author's Department

Construction Engineering Department

Fourth Author's Department

Construction Engineering Department

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https://doi.org/10.56748/ejse.24506

All Authors

Sama Taha, George Iskander, Mohamed Abou-Zeid, Ezzeldin Sayed-Ahmed

Document Type

Research Article

Publication Title

Electronic Journal of Structural Engineering

Publication Date

1-1-2024

doi

10.56748/ejse.24506

Abstract

This study aims to investigate the strengthening effect of GFRP bars on the capacity of RC slabs when subject to flexure loading. The objective is to show the effect of debonding failure on the capacity of the GFRP strengthened slabs relative to the different variables used. The variables used are different bonding lengths, diameters, and numbers of GFRP bars in strengthening RC slabs. The work presents the details of the adopted experimental investigation and the results of the flexural tests performed on twelve slabs with the different variables. These results are adopted to validate the currently available design provisions of the ACI code of practice for using NSM GFRP to strengthen RC slabs. The results showed that strength gain is directly proportional to the reinforcing ratio. However, the deflections of all strengthened and un-strengthened specimens did not significantly change.

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1

Last Page

5

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Article. Record derived from SCOPUS.

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