PSI - Issue 64

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ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 64 (2024) 1065–1072

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Behaviour of Full-scale Shear Critical RC Beams Strengthened with Textile Reinforced Mortar Asad-ur-Rehman Khan a *, Fawwad Masood a a Department of Civil Engineering, NED University of Engineering & Technology, Karachi-75270, Pakistan Abstract Textile reinforced mortars (TRM) have recently been used for strengthening of Reinforced Concrete (RC) structural members by researchers. Carbon, glass, aramid and Polyphenylene Benzobisoxazole (PBO) fibres have extensively caught the eyes of the scientists and research enthusiasts, basalt fibre has been mostly explored for strengthening of masonry. For beams, a narrow band of data is available TRM using basalt fibres as strengthening material, most of which comprises of small-scale tests. An experimental investigation of full-scale shear critical RC beams with varying shear span-to-depth (a/d) ratios between 1 to 2.5 is presented in this paper. Six beams were tested in which three beams served as control beams for respective a/d ratios, while the remaining three beams were strengthened with basalt fibres based TRM. TRM was provided at the bottom of the RC beams in the shape of U-shaped wraps for corresponding a/d ratios. The basalt fibres based TRM was found to be effective in improving the performance of RC beams in terms of serviceability. Both cracking and deflections were controlled. The use of TRM also improved load carrying capacities of TRM strengthened beams in flexure. Appearance of first cracks was delayed, post cracking stiffness of the flexural members was enhanced and showed better performance in terms of ductility. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords: Reinforced concrete; Shear Critical beams; Strengthening; Textile Reinforced Mortar; Performance SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Behaviour of Full-scale Shear Critical RC Beams Strengthened with Textile Reinforced Mortar Asad-ur-Rehman Khan a *, Fawwad Masood a a Department of Civil Engineering, NED University of Engineering & Technology, Karachi-75270, Pakistan Abstract Textile reinforced mortars (TRM) have recently been used for strengthening of Reinforced Concrete (RC) structural members by researchers. Carbon, glass, aramid and Polyphenylene Benzobisoxazole (PBO) fibres have extensively caught the eyes of the scientists and research enthusiasts, basalt fibre has been mostly explored for strengthening of masonry. For beams, a narrow band of data is available TRM using basalt fibres as strengthening material, most of which comprises of small-scale tests. An experimental investigation of full-scale shear critical RC beams with varying shear span-to-depth (a/d) ratios between 1 to 2.5 is presented in this paper. Six beams were tested in which three beams served as control beams for respective a/d ratios, while the remaining three beams were strengthened with basalt fibres based TRM. TRM was provided at the bottom of the RC beams in the shape of U-shaped wraps for corresponding a/d ratios. The basalt fibres based TRM was found to be effective in improving the performance of RC beams in terms of serviceability. Both cracking and deflections were controlled. The use of TRM also improved load carrying capacities of TRM strengthened beams in flexure. Appearance of first cracks was delayed, post cracking stiffness of the flexural members was enhanced and showed better performance in terms of ductility. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers Keywords: Reinforced concrete; Shear Critical beams; Strengthening; Textile Reinforced Mortar; Performance © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers

* Corresponding author. Tel.: +92-99261275; fax: +92-99261265. E-mail address: asadkhan@neduet.edu.pk * Corresponding author. Tel.: +92-99261275; fax: +92-99261265. E-mail address: asadkhan@neduet.edu.pk

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of SMAR 2024 Organizers

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