Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials
The strengthening intervention strategies that exist for masonry buildings are based on the use of thin composites and are a recent activity used in structural engineering. Nowadays, mortar matrices are frequently found instead of epoxy resins, since the fiber reinforced cementitious matrix (FRCM) c...
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MDPI AG
2020-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/21/7908 |
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| author | Giovanni Crisci Giancarlo Ramaglia Gian Piero Lignola Francesco Fabbrocino Andrea Prota |
| author_facet | Giovanni Crisci Giancarlo Ramaglia Gian Piero Lignola Francesco Fabbrocino Andrea Prota |
| author_sort | Giovanni Crisci |
| collection | DOAJ |
| description | The strengthening intervention strategies that exist for masonry buildings are based on the use of thin composites and are a recent activity used in structural engineering. Nowadays, mortar matrices are frequently found instead of epoxy resins, since the fiber reinforced cementitious matrix (FRCM) composites are more compatible with masonry than fiber reinforced plastic (FRP) ones. The mortar matrix in FRCM composites is not comparable to the epoxy resin, and therefore its contribution is different not only in traction but above all on the compression side. Due to its larger thickness, if compared to the epoxy resin, the impact of the mortar matrix on the flexural response of strengthened cross sections is not negligible. This paper aimed to investigate the influence of the contribution of the mortar matrix on the compression side on the flexural capacity of strengthened cross section. As such, p–m interaction domains and bending moment–curvature diagrams were evaluated to understand the influence of several mechanical properties of fiber and mortar matrices on FRCM efficiency, typical of real applications. Hence, the impact of several constitutive relationships of composites (linear and bilinear behavior) was considered for the structural analysis of the strengthened cross section. The presented results are all completely in a dimensionless form; therefore, independent of geometry and mechanical parameters can be the basis for developing standardized design and/or verification methodologies useful for the strengthening systems for masonry elements. |
| first_indexed | 2024-03-10T15:01:10Z |
| format | Article |
| id | doaj.art-81c0bc00f583428ba38558f694724751 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:01:10Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-81c0bc00f583428ba38558f6947247512023-11-20T20:11:38ZengMDPI AGApplied Sciences2076-34172020-11-011021790810.3390/app10217908Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM MaterialsGiovanni Crisci0Giancarlo Ramaglia1Gian Piero Lignola2Francesco Fabbrocino3Andrea Prota4Department of Engineering, University of Naples “Parthenope”, Centro Direzionale C4, 80143 Naples, ItalyDepartment of Engineering, Telematic University Pegaso, Piazza Trieste e Trento, 48, 80132 Naples, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, 80125 Naples, ItalyDepartment of Engineering, Telematic University Pegaso, Piazza Trieste e Trento, 48, 80132 Naples, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, 80125 Naples, ItalyThe strengthening intervention strategies that exist for masonry buildings are based on the use of thin composites and are a recent activity used in structural engineering. Nowadays, mortar matrices are frequently found instead of epoxy resins, since the fiber reinforced cementitious matrix (FRCM) composites are more compatible with masonry than fiber reinforced plastic (FRP) ones. The mortar matrix in FRCM composites is not comparable to the epoxy resin, and therefore its contribution is different not only in traction but above all on the compression side. Due to its larger thickness, if compared to the epoxy resin, the impact of the mortar matrix on the flexural response of strengthened cross sections is not negligible. This paper aimed to investigate the influence of the contribution of the mortar matrix on the compression side on the flexural capacity of strengthened cross section. As such, p–m interaction domains and bending moment–curvature diagrams were evaluated to understand the influence of several mechanical properties of fiber and mortar matrices on FRCM efficiency, typical of real applications. Hence, the impact of several constitutive relationships of composites (linear and bilinear behavior) was considered for the structural analysis of the strengthened cross section. The presented results are all completely in a dimensionless form; therefore, independent of geometry and mechanical parameters can be the basis for developing standardized design and/or verification methodologies useful for the strengthening systems for masonry elements.https://www.mdpi.com/2076-3417/10/21/7908masonryFRCMmortar matrix in compressionout-of-plane |
| spellingShingle | Giovanni Crisci Giancarlo Ramaglia Gian Piero Lignola Francesco Fabbrocino Andrea Prota Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials Applied Sciences masonry FRCM mortar matrix in compression out-of-plane |
| title | Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials |
| title_full | Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials |
| title_fullStr | Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials |
| title_full_unstemmed | Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials |
| title_short | Effects of the Mortar Matrix on the Flexural Capacity of Masonry Cross Sections Strengthened with FRCM Materials |
| title_sort | effects of the mortar matrix on the flexural capacity of masonry cross sections strengthened with frcm materials |
| topic | masonry FRCM mortar matrix in compression out-of-plane |
| url | https://www.mdpi.com/2076-3417/10/21/7908 |
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