PSI - Issue 44

ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Structural Integrity Procedia 00 (2022) 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 44 (2023) 2182–2189

© 2023 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 the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. This paper contributes to filling this knowledge gap by presenting an analytical study on the compressive strength of masonry confined by FRCM systems. The goal is twofold: a) to assess existing formulae published in the literature or in some international guidelines, and b) to provide new and more accurate proposals. To this purpose, a large database including results of compression tests on masonry members wrapped with FRCM systems was compiled from the literature. The database was organized by considering some relevant parameters, such as: type of fiber and geometry of the mesh, number of employed layers, mechanical properties of the inorganic matrix, compressive strength of the masonry. The accuracy of the strength models is examined by both considering all FRCM confined members together and treating natural and artificial masonry separately. © 2022 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 the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Confinement; masonry, analytical models; strength 1. Introduction Fabric-reinforced cementitious matrix (FRCM) composites represent an attractive solution for the external confinement of masonry members. They entail the use of an open grid fabric of continuous fibers embedded in different types of matrices (e.g. lime-based, cement-based, and geopolymers), which combination leads to different physical Abstract Fabric-reinforced cementitious matrix (FRCM) composites have emerged as a viable solution for the external confinement of m sonry memb rs. However, what st ll discourages the u e of these composite in the civil eng neering fi ld is the a k of analytical odels capable of estimating the compre sive str ngth of FRCM confined members with appreciable accuracy. This paper contributes to filling this knowledge gap by presenting an analytical study on th compressive strength of masonry confined by FRCM sy tems. The goal is t ofold: a) to asses xisting formulae published in the literature or in some intern ti al guidelines, and b) to provide new and more accur te propo als. To this purpos , a large atabase ncluding esults of compression tests o masonry members wrappe with FRCM system was compiled from the literature. The atabase was organiz d by con idering me rel vant paramet rs, such as: type of fiber and geometry of the mesh, number of employed layers, mechanical properties of the inorganic m trix, compressive strength of the masonry. The accuracy of the strength odels is examined by both considering all FRCM confined members togethe a d treating n tural and artificial masonry eparately. © 2022 The Authors. Publish 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 e scientific committe of the XIX ANIDIS C nference, Seismic Engineering in Italy K ywords: Confin ment; ma onry, analytical models; strength 1. Introduction Fabric-reinforced cementitious matrix (FRCM) composites represent an attractive solution for the external confinement o masonry members. They entail the use of an pen grid fabric of con inuous fibers embedded in diff ent types of ma rices (e.g. li -based, cem t-based, and geopolymers), which mbination leads to diff rent physical XIX ANIDIS Conference, Seismic Engineering in Italy Compressive Strength of Masonry Confined by FRCM Systems: Assessment of Existing Models and New Proposals Annalisa Napoli a *,Roberto Realfonzo b a,b University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy XIX ANIDIS Conference, Seismic Engineering in Italy Compressive Strength of Masonry Confined by FRCM Systems: Assessment of Existing Models and New Proposals Annalisa Napoli a *,Roberto Realfonzo b a,b University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy Abstract Fabric-reinforced cementitious matrix (FRCM) composites have emerged as a viable solution for the external confinement of masonry members. However, what still discourages the use of these composites in the civil engineering field is the lack of analytical models capable of estimating the compressive strength of FRCM confined members with appreciable accuracy.

* Corresponding author. Tel.: +39-089-964-085; fax: +39-089-968-739. E-mail address: annapoli@unisa.it * Corresponding author. Tel.: +39-089-964-085; fax: +39-089-968-739. E-mail address: annapoli@unisa.it

2452-3216 © 2022 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 the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy 2452-3216 © 2022 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 the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 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 the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.279