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) 1260–1267

XIX ANIDIS Conference, Seismic Engineering in Italy Composite Reinforced Mortar (CRM) and XIX ANIDIS Conference, Seismic Engineering in Italy Composite Reinforced Mortar (CRM) and

© 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 Composite Reinforced Mortar (CRM) and Fiber-Reinforced Cementitious Matrix (FRCM) are two modern strengthening techniques for existing masonry, based on the coupling of fiber-based grids and inorganic matrices, applied on the masonry surface. They typically differ for the thickness of the coating (20-40 mm in the former, 8-15 mm in the latter) and the type of embedded reinforcement (pre-coated meshes with wide pitch or dry fabrics with a closer yarns spacing, respectively). To prove their effectiveness in the seismic protection of historical masonry vaulted ceilings, experimental cyclic tests were performed on full scale thin barrel vault samples subjected to a distributed transversal load. The results are analysed and discussed in the paper: it emerged a good effectiveness of both the strengthening solutions, with significant benefits in both resistance and displacement capacities. Moreover, a key aspect for the reinforcement effectiveness is found in the connection of the composite systems with the abutments. Numerical non-linear static analyses based on a simplified multi-layer approach developed in the OOFEM code allow to analyse the resisting mechanisms and investigate on the reinforcement effectiveness. © 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: Seismic protection, masonry vaults, composite materials, CRM, FRCM, cyclic tests, numerical simulations. Fiber-Reinforced Cementitious Matrix (FRCM) for the seismic protection of masonry vaults I. Boem a *, N. Gattesco b a Department of Concrete and Masonry Structures, Faculty of Civil Engineering, Czech Technical University, Thákurova 7, 166 29 Praha 6, zech Republic b University of Trieste, Department of Engineering and Architecture, Via Alfonso Valerio 6/1, 34127 Trieste, Italy Abstract Composite Reinforced Mortar (CRM) and Fiber-Reinforced Cementitious Matrix (FRCM) are two modern strengthening techniques for existing mas nry, based on the coupling of iber-bas d grids and inorganic matrices, applied on th ma onry surface. They typically differ for the thickness f ating (20-40 mm in the former, 8-15 mm in th latter) and the type f embedded reinforcement (pre-coated meshes with wide pi ch or dry fabrics with a closer yarns spacing, respectively). To prove th ir effectiv ness in th seismic prot ction of historical masonry vaulted ceilings, experimental cyclic t ts wer performed on full scale thi barrel vault a ples subjected to a distributed trans ersal load. The results are nal sed and discuss d in the paper: it emerged a good effectiveness of oth the streng hening solution , with significant benefits in both resistance and displacemen capacities. Moreover, a k y a pect f r the reinforceme t effectiveness s found in the co nectio of e composite systems with the abutment . Numerical non-linear static analyses based on a simplified multi-layer approach develop d in the OOFEM code allow to analyse the resisting mechanisms and inve tigate on the re nforcement effectiveness. © 2022 The Authors. Publis ed 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 Keywords: Seismic protection, masonry vaults, composite aterials, CRM, FRCM, cyclic tests, numerical simulations. Fiber-Reinforced Cementitious Matrix (FRCM) for the seismic protection of masonry vaults I. Boem a *, N. Gattesco b a Department of Concrete and Masonry Structures, Faculty of Civil Engineering, Czech Technical University, Thákurova 7, 166 29 Praha 6, Czech Republic b University of Trieste, Department of Engineering and Architecture, Via Alfonso Valerio 6/1, 34127 Trieste, Italy

* Corresponding author. E-mail address: ingrid.boem@fsv.cvut.cz * Corresponding author. E-mail address: ingrid.boem@fsv.cvut.cz

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.2023.01.162