In-Plane Shear Behaviour of Brick Masonry Wallets Strengthened with GFRP and Textile Reinforced Mortars

Document Type : Regular Paper

Authors

1 Associate Professor, Department of Civil Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, Tamil Nadu, India

2 UG Students, Department of Civil Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, Tamil Nadu, India

Abstract

This study investigates the structural behavior of unstrengthened and Textile Reinforced Mortar (TRM)-strengthened brick masonry wallets under diagonal compression through experimental testing and finite element analysis (FEA). Masonry wallets measuring 700 mm × 700 mm with a thickness of 115 mm were constructed using clay bricks and cement mortar. Five wallets were tested to failure under diagonal compression. Strengthening techniques, including fibre wrapping and TRM, were employed to enhance their performance. Unstrengthened wallets exhibited brittle failure modes, such as diagonal cracking, localized crushing, and mortar joint sliding, highlighting their vulnerability to tensile stresses. In contrast, TRM-strengthened wallets demonstrated significantly improved shear performance, enhanced ductility, distributed cracking, and increased load-carrying capacity. Failure modes for strengthened wallets included TRM debonding, textile rupture, and combined mechanisms. FEA models developed in ANSYS successfully replicated the stress distribution and failure patterns observed experimentally, with deviations of less than 8% in peak load and crack propagation—well within acceptable limits. These findings underscore the effectiveness of TRM as a retrofitting solution for improving the structural performance of brick masonry under diagonal compression.

Graphical Abstract

In-Plane Shear Behaviour of Brick Masonry Wallets Strengthened with GFRP and Textile Reinforced Mortars

Highlights

  • Studied the structural response of unstrengthen and TRM-strengthened brick masonry wallets under diagonal compression.
  • TRM strengthening significantly improved load-carrying capacity, ductility, and crack distribution compared to unstrengthen wallets.
  • Identified dominant failure modes, including diagonal cracking, TRM debonding, and textile rupture, for both strengthened and unstrengthen specimens.
  • Developed and validated ANSYS-based FEA models to replicate experimental behaviour, including stress distribution and failure patterns.

Keywords

Main Subjects

References

[1]     Demaj A, Gago A, Marques AI, Gomes Ferreira J. Shear performance of brick masonry walls reinforced with twisted steel bars. Structures 2023;58:105579. doi:10.1016/j.istruc.2023.105579.
[2]     Özen A, Çelik A, Akkaya ST, Bıçakçıoğlu K, Mercimek Ö, Yılmaz MC, et al. Experimental investigation of behavior of masonry wall under diagonal tension loading: Strengthening with CFRP versus TRM. Structures 2024;70:107723. doi:10.1016/j.istruc.2024.107723.
[3]     Jahangir H, Esfahani MR. Bond Behavior Investigation Between Steel Reinforced Grout Composites and Masonry Substrate. Iran J Sci Technol Trans Civ Eng 2022;46:3519–35. doi:10.1007/s40996-022-00826-9.
[4]     Parisi F, Iovinella I, Balsamo A, Augenti N, Prota A. In-plane behaviour of tuff masonry strengthened with inorganic matrix–grid composites. Compos Part B Eng 2013;45:1657–66. doi:10.1016/j.compositesb.2012.09.068.
[5]     Almeida JAPP, Pereira EB, Barros JAO. Assessment of overlay masonry strengthening system under in-plane monotonic and cyclic loading using the diagonal tensile test. Constr Build Mater 2015;94:851–65. doi:10.1016/j.conbuildmat.2015.07.040.
[6]     Babaeidarabad S, De Caso F, Nanni A. URM Walls Strengthened with Fabric-Reinforced Cementitious Matrix Composite Subjected to Diagonal Compression. J Compos Constr 2014;18. doi:10.1061/(ASCE)CC.1943-5614.0000441.
[7]     Garcia-Ramonda L, Pelá L, Roca P, Camata G. In-plane shear behaviour by diagonal compression testing of brick masonry walls strengthened with basalt and steel textile reinforced mortars. Constr Build Mater 2020;240:117905. doi:10.1016/j.conbuildmat.2019.117905.
[8]     Kałuża M. TRM strengthening as effective prevention against premature failure of masonry walls. Eng Fail Anal 2024;162:108436. doi:10.1016/j.engfailanal.2024.108436.
[9]     Liapopoulou M, Bompa DV, Elghazouli AY. In and out of plane behaviour of TRM strengthened heritage masonry elements. Constr Build Mater 2024;448:138152. doi:10.1016/j.conbuildmat.2024.138152.
[10]   Casacci S, Gentilini C, Di Tommaso A, Oliveira D V. Shear strengthening of masonry wallettes resorting to structural repointing and FRCM composites. Constr Build Mater 2019;206:19–34. doi:10.1016/j.conbuildmat.2019.02.044.
[11]    Bustos-García A, Moreno-Fernández E, Zavalis R, Valivonis J. Diagonal compression tests on masonry wallets coated with mortars reinforced with glass fibers. Mater Struct 2019;52:60. doi:10.1617/s11527-019-1360-y.
[12]   kashani HK, Shakiba M, Bazli M, Hosseini SM, Mortazavi SMR, Arashpour M. The structural response of masonry walls strengthened using prestressed near surface mounted GFRP bars under cyclic loading. Mater Struct 2023;56:112. doi:10.1617/s11527-023-02201-0.
[13]   Asad M, Zahra T, Thamboo J. The Effectiveness of CFRP- and Auxetic Fabric-Strengthened Brick Masonry under Axial Compression: A Numerical Investigation. Polymers (Basel) 2022;14:1800. doi:10.3390/polym14091800.
[14]   Ahmed TI, Afify MR. Feasibility of using ferrocement and GFRP for strengthening bearing walls with openings. J Build Pathol Rehabil 2020;5:5. doi:10.1007/s41024-019-0070-8.
[15]   Fakharian P, Rezazadeh Eidgahee D, Akbari M, Jahangir H, Ali Taeb A. Compressive strength prediction of hollow concrete masonry blocks using artificial intelligence algorithms. Structures 2023;47:1790–802. doi:10.1016/j.istruc.2022.12.007.
[16]   Soleymani A, Rezazadeh Eidgahee D, Jahangir H. Textile-reinforced mortar-masonry bond strength calibration using machine learning methods. Artif. Intell. Appl. Sustain. Constr., Elsevier; 2024, p. 301–15. doi:10.1016/B978-0-443-13191-2.00001-8.
[17]   Hoseynzadeh H, Mortezaei A. Seismic Vulnerability and Rehabilitation of One of The World’s Oldest Masonry Minaret under The Different Earthquake Frequency Contents. J Rehabil Civ Eng 2021;9:12–36.
[18]   International A. Standard Test Method for Diagonal Tension (Shear) in Masonry Assemblages 2022. doi:10.1520/E0519_E0519M-15.
[19]   Khan SW, Nagarajan K, Narwade R. Risk Assessment and Challenges faced in Repairs and Rehabilitation of Dilapidated buildings. J Rehabil Civ Eng 2022;10:93–112.

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History

  • Receive Date: 28 November 2024
  • Revise Date: 23 December 2024
  • Accept Date: 14 January 2025

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