Effectiveness of Various Techniques Using FRP for the Strengthening of R. C. Beams with Tension Lap Splices
Journal of Engineering Research and Reports · pp. 1–18 · Published 27 Jun 2019
10.9734/jerr/2019/v6i116937Abstract
This paper presents an experimental program conducted to investigate the flexural performance of RC beams with tension reinforcement lap splice strengthened using externally bonded FRP different techniques in splice region. The specimens were reinforced on the tension side with four deformed bars spliced at mid span. The tested beams are of 3200 mm total length and 250*120 mm cross section, tested in positive bending. The considered parameters were splice length, type of FRP (glass or carbon), strengthening techniques in splice region (externally confine strips around cross section, Near Surface Mounted technique "NSM" stirrups, externally bonded sheets or bars on the tension face, number of GFRP strips layers (one layer, two layers, and three layers), and shape of NSM stirrups (Box or U shape). No additional anchorage mechanism or bonding methodology was applied for the FRP strips on the concrete except the epoxy adhesive. The effect of these factors on the failure of modes, the ultimate load, the bond strength and that the ductility were investigated. The results indicated that all applied strengthening techniques were efficient in improving the bond strength of the lap splices, the ductility, and the load-deflection behavior of the tested beams, especially when strips were installed over the splice region. This study approved that NSM technique gave more prominent simplicity of employ.
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Cited by 13
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Ahmed H. Abdel-Kareem, Mohamed Elprince, Mohamed. H. Makhlouf · European Journal of Environmental and Civil Engineering · 2023
Ziadoon M. Ali, Akram S. Mahmoud, Mustafa M. Al-Ani · AIP Conference Proceedings · 2022
Roba Osman, Ahmed Elkhouly, Boshra Eltaly · International Journal of Concrete Structures and Materials · 2025
Showing 5 of 13 known citations — external sources report more than can currently be individually listed.
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