Strengthening of Brick Masonry Arches with Externally Bonded Steel Reinforced Composites

A qualification method for externally bonded Fibre Reinforced Cementitious Matrix (FRCM) strengthening systems

“…Moreover, medium/large scale laboratory investigations have clearly shown the effectiveness of mortar-based systems for the strengthening of reinforced concrete beams [12] and masonry arches [13,14], the confinement of columns [15], and the seismic retrofitting of masonry walls towards in-plane [16] and out-of-plane [17,18] loads.…”

Strengthening masonry vaults with organic and inorganic composites: An experimental approach

“…Thus, the thrust line can lie away from the thickness of the arch, increasing its deformability capacity, and delaying its collapse. In the case of reinforced vaults, four failure mechanisms should therefore be considered: masonry crushing, sliding at the hinges, debonding of the reinforcement due to forces perpendicular to the surface and reinforcement breakage[20][21][37][38][39].…”

Advanced fibre-reinforced polymer (FRP) composites for the rehabilitation of timber and concrete structures: assessing strength and durability

“…Advantages of using CRS for masonry structures include lower installation costs, improved corrosion resistance, limited access requirements, flexibility of use, minimum changes in member size (and in some cases aesthetics) © Woodhead Publishing Limited, 2013 after repair, minimum disturbance to occupants or traffic, minimum loss of usable space, etc. Furthermore, for seismic retrofits, the mass of the existing structure remains practically unchanged because there is little addition of weight (Motavalli and Czaderski, 2007;Shield et al, 2005;Ehsani et al, 1997;Borri et al, 2009).…”

“…CRS can also be used to address existing distress in masonry construction, for instance, repair of cracks by 'stitching' to re-establish masonry integrity when this cannot be achieved by solely 'injecting' cracks with a repair material. In addition, since many of the existing structures are located in seismically active areas and the seismic capacity of URM shear walls is minimal, either because they were not designed and constructed with consideration of this aggressive factor or because the existing structures have to cope with changes in seismic requirements, the seismic retrofit of URM buildings with advanced composite materials is a major field of application of CRS (Motavalli and Czaderski, 2007;Shield et al, 2005;Borri et al, 2004Borri et al, , 2009Tumialan et al, 2009).…”

“…Externally bonded systems have been shown to be more robust against extreme events, while NSM affect the aesthetics of the masonry structure to a lesser degree (ACI, 2010;borri et al, 2004Ehsani et al, 1997;Motavalli and Czaderski, 2007;Myers, 2011;Shield et al, 2005). (shield et al, 2005).…”