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A platform for research: civil engineering, architecture and urbanism
Strengtherning of masonry walls against out-of-plane loads using fiber-reinforced polymer reinforcement
The strengthening of unreinforced masonry structures to resist lateral pressure that may result from blast loads is of interest in this project. In the study the load-deflection response of masonry brick walls strengthened with FRP systems when subjected to transverse or out-of-plane loads was determined from static laboratory tests. It has been shown that fiber-reinforced polymer systems, consisting of fabrics of high performance fibers, provide significant increase in out-of-plane load-carrying capacity when exterally bonded to masonry walls. The test results indicated that failure occurred in the unstrengthened wall by tensile splitting of brick under bending, whereas four different modes of failure, that is punching shear through the bricks, flexural bond failure by debonding of the FRP laminates form the masonry substrate, FRP rupture, and flexural compression failure, were observed for the strengthened walls. In all cases, the load-carrying capacity increased when the thickness of FRP laminates was increased. Specimens without any anchorage measures failed prematurely by debonding of the FRP reinforcement from the masonry substrate. It can be concluded that the combination of surface grinding and fiber bolt anchorage system results in the greatest increase in wall strength.
Strengtherning of masonry walls against out-of-plane loads using fiber-reinforced polymer reinforcement
The strengthening of unreinforced masonry structures to resist lateral pressure that may result from blast loads is of interest in this project. In the study the load-deflection response of masonry brick walls strengthened with FRP systems when subjected to transverse or out-of-plane loads was determined from static laboratory tests. It has been shown that fiber-reinforced polymer systems, consisting of fabrics of high performance fibers, provide significant increase in out-of-plane load-carrying capacity when exterally bonded to masonry walls. The test results indicated that failure occurred in the unstrengthened wall by tensile splitting of brick under bending, whereas four different modes of failure, that is punching shear through the bricks, flexural bond failure by debonding of the FRP laminates form the masonry substrate, FRP rupture, and flexural compression failure, were observed for the strengthened walls. In all cases, the load-carrying capacity increased when the thickness of FRP laminates was increased. Specimens without any anchorage measures failed prematurely by debonding of the FRP reinforcement from the masonry substrate. It can be concluded that the combination of surface grinding and fiber bolt anchorage system results in the greatest increase in wall strength.
Strengtherning of masonry walls against out-of-plane loads using fiber-reinforced polymer reinforcement
Verstärkung von gemauerten Wänden gegen quergerichtete Belastungen unter Verwendung von faserverstärktem Kunststoff
Tan, Kiangh Hwee (author) / Patoary, M.K.H. (author)
Journal of Composites for Construction ; 8 ; 79-87
2004
9 Seiten, 8 Bilder, 3 Tabellen, 16 Quellen
Article (Journal)
English
Mauerwerk , Verstärkung (Festigkeit) , carbonfaserverstärkter Kunststoff , glasfaserverstärkter Kunststoff , Verstärkungsgewebe , Platte (Bauteil) , Querkraft , Seitenstabilität , Biegefestigkeit , Verankerung (mechanische Befestigung) , Belastbarkeit , Scherfestigkeit , Schlagfestigkeit , Festigkeitserhöhung , Glasgewebe , Bolzenverbindung , Systemvergleich
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