Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading
The effectiveness of textile-reinforced mortar (TRM) strengthening of masonry walls largely depends on the bond between the constituent materials. Finite element analysis (FEA) can provide valuable insights on the effect of the parameters affecting the bond; however, detailed FEA is computationally...
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MDPI AG
2023-12-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/1/32 |
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| author | Leonidas Alexandros S. Kouris Savvas P. Triantafyllou Dionysios A. Bournas Florentia A. Kariou |
| author_facet | Leonidas Alexandros S. Kouris Savvas P. Triantafyllou Dionysios A. Bournas Florentia A. Kariou |
| author_sort | Leonidas Alexandros S. Kouris |
| collection | DOAJ |
| description | The effectiveness of textile-reinforced mortar (TRM) strengthening of masonry walls largely depends on the bond between the constituent materials. Finite element analysis (FEA) can provide valuable insights on the effect of the parameters affecting the bond; however, detailed FEA is computationally intensive. To alleviate this, we develop novel empirical equations to estimate effective textile fibre properties, thus implicitly accounting for yarn and mortar debonding. As a result, 3D finite element simulations of strengthened wall specimens are simplified and accelerated. The proposed scheme is calibrated using load–displacement paths derived from experimental data, and the simulated failure modes are compared against the experimental ones demonstrating perfect agreement. A parametric analysis is conducted, exploring the impact of the mechanical ratio of TRM reinforcement and the axial wall load on the effectiveness of TRM strengthening. We demonstrate that low values of mechanical reinforcement, corresponding to natural fibres, give rise to an 8-fold increase in the capacity of unreinforced walls. The findings draw conclusions about the efficacy of TRM strengthening in masonry structures, and provide valuable insights for optimising TRM reinforcement, considering different fibre materials and axial loads in masonry structures. |
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| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-08T09:57:01Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-910fde67de7d428e9c576979efa3777b2024-01-29T13:48:19ZengMDPI AGBuildings2075-53092023-12-011413210.3390/buildings14010032Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane LoadingLeonidas Alexandros S. Kouris0Savvas P. Triantafyllou1Dionysios A. Bournas2Florentia A. Kariou3Laboratory of Engineering Mechanics, Department of Civil Engineering, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, GreeceInstitute for Structural Analysis and Aseismic Research, School of Civil Engineering, National Technical University of Athens, Zografou Campus, GR-15780 Athens, GreeceEuropean Commission, Joint Research Centre (JRC), I-21027 Ispra, ItalyAECOM, AECOM Royal Court, Basil Close, Chesterfield S41 7SL, UKThe effectiveness of textile-reinforced mortar (TRM) strengthening of masonry walls largely depends on the bond between the constituent materials. Finite element analysis (FEA) can provide valuable insights on the effect of the parameters affecting the bond; however, detailed FEA is computationally intensive. To alleviate this, we develop novel empirical equations to estimate effective textile fibre properties, thus implicitly accounting for yarn and mortar debonding. As a result, 3D finite element simulations of strengthened wall specimens are simplified and accelerated. The proposed scheme is calibrated using load–displacement paths derived from experimental data, and the simulated failure modes are compared against the experimental ones demonstrating perfect agreement. A parametric analysis is conducted, exploring the impact of the mechanical ratio of TRM reinforcement and the axial wall load on the effectiveness of TRM strengthening. We demonstrate that low values of mechanical reinforcement, corresponding to natural fibres, give rise to an 8-fold increase in the capacity of unreinforced walls. The findings draw conclusions about the efficacy of TRM strengthening in masonry structures, and provide valuable insights for optimising TRM reinforcement, considering different fibre materials and axial loads in masonry structures.https://www.mdpi.com/2075-5309/14/1/32textile reinforced mortarmasonrytextile debondingout-of-plane testsAbaqus<sup>®</sup> simulations |
| spellingShingle | Leonidas Alexandros S. Kouris Savvas P. Triantafyllou Dionysios A. Bournas Florentia A. Kariou Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading Buildings textile reinforced mortar masonry textile debonding out-of-plane tests Abaqus<sup>®</sup> simulations |
| title | Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading |
| title_full | Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading |
| title_fullStr | Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading |
| title_full_unstemmed | Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading |
| title_short | Empirical Equations for Modelling Yarn–Mortar Debonding in TRM-Strengthened Masonry Walls Subjected to Out-of-Plane Loading |
| title_sort | empirical equations for modelling yarn mortar debonding in trm strengthened masonry walls subjected to out of plane loading |
| topic | textile reinforced mortar masonry textile debonding out-of-plane tests Abaqus<sup>®</sup> simulations |
| url | https://www.mdpi.com/2075-5309/14/1/32 |
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