PSI - Issue 64

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

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Procedia Structural Integrity 64 (2024) 932–943

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Structural Rehabilitation using C-FRP: A Two-Decade Evaluation of Durability and Italian Guideline Francesco Bencardino a *, Roberta Curto a , Pietro Mazzuca a a University of Calabria, Via P. Bucci, 87036 Rende, Italy Abstract This paper focuses on the analyses of a retrofit intervention carried out in 1996, using Carbon-Fiber Reinforced Polymers (C-FRP) on reinforced concrete (RC) portal frame structures. In that period, the regulatory standards (both national and international) governing this procedure lacked specific details, thereby requiring the intervention's design to be based in accurate analysis of experimental data. Today, nearly two decades after the execution of the intervention, the C-FRP strengthened structure kept its structural integrity. This result not only validates the design procedure that was adopted but also confirms the significant durability advantages and lower maintenance costs associated with the use of C-FRP materials when compared to traditional solutions such as concrete and steel. In this context, the effectiveness of the structural rehabilitation design, based on experimental data, was then compared with current design procedures given by the Italian Guideline (CNR-DT 200 R1/2013). Through a comparative assessment of the two procedures and their respective results, it was possible to highlight the relevance of experimental studies for design purposes and to provide comprehensive data about long-term durability of FRP strengthened RC structures. © 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) © 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

Peer-review under responsibility of SMAR 2024 Organizers Keywords: Structural rehabilitation; FRP; Experimental study; Durability.

* Corresponding author. Tel.: +39 0984 496922; +39 0984 496923. E-mail address: francesco.bencardino@unical.it

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 10.1016/j.prostr.2024.09.371