Dynamic Response of FRCM Reinforced Masonry Arches

Castellano, Anna; Fraddosio, Aguinaldo; Scacco, Jacopo; Piccioni, Mario Daniele

doi:10.4028/www.scientific.net/kem.817.285

Cited by 17 publications

(7 citation statements)

References 11 publications

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“…Externally bonded (EB) reinforcements with inorganic-matrix composites are a particularly effective solution for repairing and strengthening existing concrete and masonry structures. They comprise high performance textiles made of aramid, basalt (Balsamo et al, 2011;Papanicolaou et al, 2011;Marcari et al, 2017), carbon (D'Ambrisi et al, 2013;Babaeidarabad et al, 2014;Pino et al, 2017), glass (Carozzi and Poggi, 2015;Raoof et al, 2017;Cascardi et al, 2018;Castellano et al, 2019, D'Antino et al, 2019, PBO (polyparaphenylene benzobisoxazole) (D' Ambrisi and Focacci, 2011;Alecci et al, 2016;D'Antino et al, 2018a), or natural (Codispoti et al, 2015) long fibers, usually arranged in bidirectional open meshes. Alternatively, steel cords or ropes can be used, which are assembled parallel to each other to form unidirectional textiles (Borri et al, 2009;Napoli and Realfonzo, 2015;De Santis, 2017;Bellini et al, 2018;Ombres and Verre, 2019).…”

Section: Introductionmentioning

confidence: 99%

Lessons Learned on the Tensile and Bond Behavior of Fabric Reinforced Cementitious Matrix (FRCM) Composites

Felice

D’Antino

Santis

et al. 2020

Front. Built Environ.

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Fabric Reinforced Cementitious Matrix (FRCM) composites represent an effective, compatible, and cost-efficient solution for strengthening and retrofitting existing structures. A strong research effort was done to investigate the tensile and bond properties of these materials, as well as the overall behavior of strengthened members. A Round Robin Test was organized by Rilem TC 250-CSM on 28 FRCM composites comprising basalt, carbon, glass, PBO, aramid and steel textiles, embedded in either cement, lime or geopolymer mortars, to collect an experimental dataset and define test protocols. This paper collects the outcomes of this study to highlight fundamental properties of FRCM and to investigate the variability of test results. Grid spacing, equivalent thickness of the textiles and mechanical properties of FRCM composites, such as stiffness, tensile and bond strength, are provided. Based on the comparison of experimental outcomes, the scatter of the mechanical properties is estimated, as a consequence of the quasi-brittle behavior of the inorganic matrix and its sensitivity to manufacturing, curing and handling processes. Eventually, the influence of testing implementation, such as gripping method and measuring techniques, is outlined.

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Section: Introductionmentioning

confidence: 99%

Lessons Learned on the Tensile and Bond Behavior of Fabric Reinforced Cementitious Matrix (FRCM) Composites

Felice

D’Antino

Santis

et al. 2020

Front. Built Environ.

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“…To date, only few shaking table tests have been conducted on strengthened arches and vaults (only with circular geometry). Castellano et al [9] performed dynamic tests on a fullscale tuff masonry semi-circular arch strengthened at extrados with a 5 mm thick glass fabric reinforced cementitious matrix. As expected, the reinforcement prevented the opening of hinges at the intrados and a substantial increase of the seismic capacity of the arch.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behaviour of a Strengthened Pointed Arch Tested on a Shaking Table

Šćulac,

Čeh,

Cukarić

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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This paper presents an experimental study of a strengthened pointed arch subjected to horizontal sinusoidal excitation on a shaking table. The geometry of the arch was selected to represent the geometry of typical Gothic vaults found in small single-nave village churches in Istria with preserved medieval wall paintings. The arch model was constructed from identical timber blocks with dry joints, while the reinforcement (duct tape) was applied either at extrados or at intrados of the arch. The aim of this study was to document the dynamic behaviour of pointed arches strengthened with composites, since there is a lack of experimental tests on this type of geometry. Contactless optical measuring system was used to monitor the openings between the blocks, since conventional sensors are difficult to apply. Two high-speed cameras made it possible to record the formation and closure of hinges between the blocks. Due to strengthening some hinges were hindered and consequently the seismic capacity of the arch was significantly improved.

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“…The study of the structural behavior FRCM reinforced masonry construction is even now an open research issue, especially in the case of curved structures like arches, vaults and domes. Indeed, in the literature there are still too little numerical (see, e.g., [3]) and experimental papers [4][5][6][7][8][9] on this subject.…”

Section: Introductionmentioning

confidence: 99%