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Article

Seismic Retrofitting of Traditional Masonry with Pultruded FRP Profiles

Department of Architecture, Design and Art, Università IUAV di Venezia, Venice 30123, Italy
Appl. Sci. 2020, 10(7), 2489; https://doi.org/10.3390/app10072489
Received: 5 February 2020 / Revised: 27 March 2020 / Accepted: 28 March 2020 / Published: 4 April 2020
This paper presents a study on the potentiality of seismic retrofitting solutions with pultruded Fiber Reinforced Polymer (FRP) profiles. This material can be used in connected frames providing lightweight, corrosion-free and reversible retrofitting of masonry buildings with the moderate requirements of surface preservation. In a hypothetical case study, an experimental program was designed; monotonic shear tests on a half-size physical model of the sample wall were performed to assess the structural performance before and after retrofitting with a basic frame of pultruded Glass Fiber Reinforced Polymer (GFRP) C-shaped profiles, connected to the masonry by steel threaded bar connections. During the tests, the drift, the diagonal displacements in the masonry and the micro-strain in the profiles were measured. The retrofitted system has proven very effective in delaying crack appearance, increasing the maximum load (+85% to +93%) and ultimate displacement (up to +303%). The failure mode switches from rocking to a combination of diagonal cracking and bed joint sliding. The gauge recordings show a very limited mechanical exploitation of the GFRP material, despite the noticeable effectiveness of the retrofit. The application seems thus promising and worth a deeper research focus. Finally, a finite element modelling approach has been developed and validated, and it will be useful to envisage the effects of the proposed solution in future research. View Full-Text
Keywords: masonry; seismic performance; frame retrofit; pultruded FRP; in-plane behavior masonry; seismic performance; frame retrofit; pultruded FRP; in-plane behavior
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MDPI and ACS Style

Sciarretta, F. Seismic Retrofitting of Traditional Masonry with Pultruded FRP Profiles. Appl. Sci. 2020, 10, 2489. https://doi.org/10.3390/app10072489

AMA Style

Sciarretta F. Seismic Retrofitting of Traditional Masonry with Pultruded FRP Profiles. Applied Sciences. 2020; 10(7):2489. https://doi.org/10.3390/app10072489

Chicago/Turabian Style

Sciarretta, Francesca. 2020. "Seismic Retrofitting of Traditional Masonry with Pultruded FRP Profiles" Applied Sciences 10, no. 7: 2489. https://doi.org/10.3390/app10072489

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