Rehabilitation of Masonry Buildings with Fibre Reinforced Mortar: Practical Design Considerations Concerning Seismic Resistance

Abstract:

Historic masonry buildings experience a high seismic vulnerability: innovative intervention strategies for strengthening, based on the use of fibre-based composite materials are gradually spreading. In particular, the coupling of fibre-based materials with mortar layers (Fibre Reinforced Mortar technique - FRM) evidenced a good chemical and mechanical compatibility with the historical masonry and proved to be effective for the enhancement of both in-plane and out-of-plane performances of masonry, contrasting the opening of cracks and improving both resistance and ductility. The resistant mechanisms that arise in FRM strengthened masonry walls subjected to in-plane horizontal actions are analyzed in the paper and a practical design approach to evaluate their performances is illustrated, evidencing the dominant collapse mode at the varying of the masonry characteristics. Some masonry walls are analyzed numerically and analytically, as “case study”.

• Periodical: Key Engineering Materials (Volume 898)
• Pages: 1-7
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.898.1
• Online since: August 2021
• Authors: Ingrid Boem*, Natalino Gattesco
• Keywords: Analytical Provisions, Composite Materials, FRM, Masonry Structures, Numerical Simulations, Seismic Vulnerability, Structural Refurbishment

References

[1] N. Augenti, F. Parisi F., Learning from Construction Failures due to the 2009 L'Aquila, Italy, Earthquake. Journal of Performance of Constructed Facilities. ASCE, 24 6 (2010) 536-555.

DOI: 10.1061/(asce)cf.1943-5509.0000122

[2] S.A. Babatunde, Review of strengthening techniques for masonry using fiber reinforced polymers. Composite Structures, 161 (2017) 246–255.

DOI: 10.1016/j.compstruct.2016.10.132

[3] M. Corradi, A. Borri, A. Vignoli, Experimental evaluation of the in-plane shear behaviour of masonry walls retrofitted using conventional and innovative methods. J Br Mason Soc, 21-1 (2008) 29–42.

[4] T.C. Triantafillou, Textile-Reinforced Mortars (TRM) - A new generation of composite materials as alternative to fiber reinforced polymers for strengthening and seismic retrofitting of structures. Composite Materials - A Vision for the Future (2011) 113-127.

DOI: 10.1007/978-0-85729-166-0_5

[5] D. Arboleda, S. Babaeidarabad, C.D. Hays, A. Nanni, Durability of Fabric Reinforced Cementitious Matrix (FRCM) composites. In: Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014, Vancouver (CA).

[6] J. Donnini, F. De Caso y Basalo, V. Corinaldesi, G. Lancioni, A. Nanni, A. Fabric-reinforced cementitious matrix behavior at high-temperature: Experimental and numerical results. Composites Part B, 108 (2017) 108–121.

DOI: 10.1016/j.compositesb.2016.10.004

[7] F. Micelli, M. Corradi, M. Aiello, A. Borri, Properties of Aged GFRP Reinforcement Grids Related to Fatigue Life and Alkaline Environment. Applied Sciences, 7 (2017) 897.

DOI: 10.3390/app7090897

[8] N. Ismail, J.M. Ingham, In-plane and out-of-plane testing of unreinforced masonry walls strengthened using polymer textile reinforced mortar. Engineering Structures, 118 (2016) 167–177.

DOI: 10.1016/j.engstruct.2016.03.041

[9] C.G. Papanicolaou, T.C. Triantafillou, M. Papathanasiou, K. KarloS, Textile reinforced mortar (TRM) versus FRP as strengthening material of URM walls: out-of-plane cyclic loading. Materials And Structures, 41 (2008) 153-157.

DOI: 10.1617/s11527-007-9226-0

[10] N. Gattesco, I. Boem, Experimental and analytical study to evaluate the effectiveness of an in-plane reinforcement for masonry walls using GFRP meshes, Construction and Building Materials, 30 88 (2015) 94-104.

DOI: 10.1016/j.conbuildmat.2015.04.014

[11] N. Gattesco, I. Boem, Out-of-plane behavior of reinforced masonry walls: Experimental and numerical study, Composites Part B, 128 (2017) 39-52.

DOI: 10.1016/j.compositesb.2017.07.006

[12] F.G. Carozzi, A. Bellini, T. D'Antino, et al., Experimental investigation of tensile and bond properties of Carbon-FRCM composites for strengthening masonry elements, Composites Part B, 128 (2017) 100–119.

DOI: 10.1016/j.compositesb.2017.06.018

[13] M. Leone, M.A. Aiello, A. Balsamo, et al., Glass fabric reinforced cementitious matrix: Tensile properties and bond performance on masonry substrate, Composites Part B, 127 (2017) 196–214.

DOI: 10.1016/j.compositesb.2017.06.028

[14] N. Gattesco, I. Boem, Characterization tests of GFRM coating as a strengthening technique for masonry buildings, Composite Structures, 165 (2017) 209-222.

DOI: 10.1016/j.compstruct.2017.01.043

[15] V. Turnsek, A. Cacovic, Some experimental results on the strength of brick masonry walls. In: Proceedings of the 2nd Int. Brick Masonry Conference (1971) 149-156, Stoke on Trent (UK).

[16] TNO Building and Construction Research, DIANA finite element analysis user's manual. Release10.2. September (2017).

[17] CSLP - Consiglio Superiore dei Lavori Pubblici, Circolare del Ministero delle infrastrutture e dei trasporti 21 gennaio 2019, n. 7 Istruzioni per l'applicazione dell'«Aggiornamento delle "Norme tecniche per le costruzioni"» di cui al Decreto Ministeriale 17 gennaio 2018,. Rome, I: CSLP.

DOI: 10.3280/ed2014-001008