Seismic retrofitting of masonry walls with textile reinforced mortar composites

Author(s): Gianmarco de Felice, Stefano De Santis
Paper category: Proceedings
Book title: Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures
Editor(s): Ana Baričević, Marija Jelčić Rukavina, Domagoj Damjanović, Maurizio Guadagnini
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 708-715
Total Pages: 848
Language: English

Abstract: Stone masonry walls are particularly vulnerable against out-of-plane seismic actions as a consequence of bending, leaf separation or disaggregation. Textile Reinforced Mortar (TRM) composites could be used to contrast these failure modes, but the knowledge on the seismic behaviour of TRM reinforced masonry structures is still insufficient. This work describes a shake table test carried out on two full-scale walls, one made of two leaves of rubble stones and one of regular tuff blocks. The walls were provided with a reinforced brickwork top beam, whose horizontal displacement was constrained to avoid overturning and induce out-of- plane vertical bending. Natural accelerograms were applied in horizontal and vertical directions with increasing scale factor up to collapse. The walls were tested unreinforced, retrofitted with TRMs and tested again. A bidirectional basalt mesh was applied over the entire surface of the stone wall, whereas a unidirectional steel textile was used on the tuff wall. The response of the specimens before and after retrofitting are compared to contribute to the development of a deeper understanding of the effectiveness of TRM composites for the seismic retrofitting of the building stock.

Online publication :2019
Publication type : full_text
Public price (Euros) : 00