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Experimental bond behavior of FRP sheets glued on brick masonry
Oliveira, Daniel V.; Basílio, Ismael; Lourenço, Paulo B.This paper deals with the experimental characterization of the mechanical tensile and shear bond behavior of fiber reinforced polymer (FRP) sheets externally glued on masonry prisms, in terms of load capacity and stress distribution along the bonded length. The brick masonry adopted tries to replicate ancient brick masonry, by using handmade low strength solids bricks and low strength lime based mortar. Key par...
Experimental behavior of FRP strengthened masonry arches
Oliveira, Daniel V.; Basílio, Ismael; Lourenço, Paulo B.This paper deals with the experimental behavior of solid clay brick masonry arches strengthened with glass fiber reinforced polymer composites. Twelve half-scaled segmental masonry arches subjected to a load applied at the quarter span were tested under displacement control up to failure. The arches were built using handmade low strength bricks and a commercial lime-based mortar, trying to mimic ancient structu...
Strengthening of arched masonry structures with composite materials
Basílio, IsmaelTese de Doutoramento em Engenharia Civil - Área do Conhecimento em Estruturas ; Given the historical importance of the cultural heritage for any country, not only social but also from the technical point of view it naturally emerges the interest to be studied. As any other structure during its period of life, historical constructions are exposed to deterioration due to environmental actions and hazard events c...
Comportamento experimental de arcos de alvenaria reforçados com FRP
Oliveira, Daniel V.; Lourenço, Paulo B.; Basílio, IsmaelNeste artigo descreve-se o comportamento experimental de arcos de alvenaria de tijolo reforçados com fibras de vidro (GFRP). Os provetes, semicirculares, foram construídos à escala 1:2, com 1.5 m de vão e testados sob uma carga monotónica aplicada a um quarto do vão. O material de reforço foi aplicado tanto no extradorso como no intradorso dos provetes. Os resultados experimentais apresentados neste trabalho mo...
FRP strengthening of masonry arches towards an enhanced behaviour
Oliveira, Daniel V.; Basílio, Ismael; Lourenço, Paulo B.This paper deals with the experimental behaviour of brick masonry arches strengthened with glass composite materials (GFRP). Eight 1:2 scale models of 1.5 m span arches were tested under a monotonic vertical load applied at the quarter span. The FRP strengthening was applied either at the extrados or at the intrados of the specimens. The experimental results presented in this paper show that the adopted GFRP st...
Experimental characterization of frp-masonry interface behaviour
Basílio, Ismael; Oliveira, Daniel V.; Lourenço, Paulo B.Due to frp materials well known properties, restoration of historical heritage with such materials has become an attractive solution employed in structural rehabilitation, maintaining structural stability and avoiding unacceptable cracking or collapse. Specific knowledge concerning the structural behaviour of masonry structures strengthened with frp is quite scarce, which is a key issue when dealing with the st...
Optimal FRP strengthening of masonry arches
Basílio, Ismael; Oliveira, Daniel V.; Lourenço, Paulo B.When conservation of historical constructions goes beyond simple modifications or minor superficial reparations, an understanding of the structural behaviour is required. In order to assure a better performance of old buildings during its life expectancy, an original representative structural model needs to be found first, and then a different strengthened structure has to be analyzed. Semicircular unstrengthen...
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