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

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Procedia Structural Integrity 44 (2023) 2230–2237

XIX ANIDIS Conference, Seismic Engineering in Italy Study on the effectiveness of a CRM system: in-plane and out-of-plane cyclic tests on masonry piers N. Gattesco a , E. Rizzi a *, A. Bez a , A. Dudine b a University of Trieste, Department of Engineering and Architecture, Via Alfonso Valerio 6/1, 34127 Trieste, Italy b Fibre Net S.p.A.. Via Jacopo Stellini 3, Z.I.U. 33050 Pavia di Udine (UD), Italy XIX ANIDIS Conference, Seismic Engineering in Italy Study on the effectiveness of a CRM system: in-plane and out-of-plane cyclic tests on masonry piers N. Gattesco a , E. Rizzi a *, A. Bez a , A. Dudine b a University of Trieste, Department of Engineering and Architecture, Via Alfonso Valerio 6/1, 34127 Trieste, Italy b Fibre Net S.p.A.. Via Jacopo Stellini 3, Z.I.U. 33050 Pavia di Udine (UD), Italy

© 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. Abstract The results of a broad experimental campaign on full scale masonry samples are presented in the paper, to evidence the effectiveness of a CRM (Composite Reinforced Mortar) strengthening System. In particular, shear-compression tests were carried out on masonry samples strengthened with the application of the CRM System on one or both faces of the wall, consisting of a mortar coating reinforced with a preformed GFRP (Glass Fiber Reinforced Polymer) mesh. In the former case, to connect wall leaves, artificial diatones were used; in the latter case, these diatones and couples of GFRP L-shape connectors were used to confine the masonry wall. The three-point bending test was also carried out on one-side reinforced masonry specimen, in which also artificial diatones were used. The sample was arranged vertically and loaded cyclically according to a three-point bending scheme. The results of all reinforced specimen tests were compared with those of the equivalent unreinforced ones. © 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: CRM reinforcement, jacketing strenghtened masonry, seismic vulnerability, masonry experimental tests, existing masonry structure 1. Introduction Stone masonry constructions are an important part of the existing buildings in many Italian regions. The most of them are made with irregular elements connected with poor lime mortar, and for this reason there are many existing buildings that are seismically inadequate. Different strengthening techniques were proposed over the last few decades, to reduce the vulnerability of buildings. Shear-compression tests (Mercedes et al., 2020, Garcia-Ramonda et al., 2022, Abstract The results of a broad experimental campaign on full scale masonry samples are presented in the paper, to evidence the effectiveness of a CRM (Composite Re nforced Mortar) strengthening System. In particular, sh ar-compression t sts were carri d out on masonry samples strength ned with the application of the CRM System on one or both faces of the wall, consisting of a mortar co ti g reinforced with a pr formed GFRP (Glass Fiber Reinforced Polymer) mesh. In the former case, to connect wall leaves, artif cial d at nes were used; in th latter case, these diaton s and couples of GFRP L-shap conn ctor were used to confine the masonry w ll. The th e-point bending test was also carried out on ne-side reinforced m sonry sp imen, in which als artificial di t es ere us d. Th sampl was arranged verti lly and loaded cyclically ac ording to a thr e-poi t bend ng scheme. The results of all reinforced specimen tests were compared with those of the equivalent unre forced on s. © 2022 The Auth s. 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 u der re ponsibility of scientific committe of the XIX ANIDIS C nfere ce, Seismic Engineering in Italy K ywords: CRM r inforcement, jacketing strenghtened masonry, seismic vulnerability, masonry experimental tests, existing maso ry structure 1. Introduction Stone masonry constructions are an important part of the existing buildings in many Italian regions. The most of them ar de with irreg lar elem nts connected with poor lime mortar, and for this reason ther are many exi ting buildings th t are seismically inadequate. Differ nt strengthen ng techniques were proposed over the last few decades, to re uce e vulnerabil ty of buildings. Shear-compression tests (Mercedes et al., 2020, Garcia-Ramonda t al., 2022

* Corresponding author. Tel.: +39 339 7057482. E-mail address: emanuele.rizzi@units.it * Corresponding author. Tel.: +39 339 7057482. E-mail address: emanuele.rizzi@units.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.2023.01.285