Abstract
The article describes numerical study of masonry vaults, based on steel beams, reinforced with carbon fiber composites. Two amplification systems were investigated: a solid mortar with an embedded grid and a discrete one in the form of tapes (stripes). Numerical simulation based on nonlinear analysis revealed the amplification efficiency under different arrangements, cracking and destructive load, the stress-strain state of the vaults. Many models are considered: not strengthening; not strengthening with damage; reinforced without damage, reinforced with damage. The simulation results in ANSYS PC were compared with each other to assess changes in the bearing capacity and the nature of the destruction of the samples. The span of steel beams is 5 meters, the span of the arch is 1.1 meters, the rise of the arch is 120 mm, the thickness is 120 mm. The load on the vaults is applied evenly distributed. The material of the vaults is ceramic solid brick on a lime-cement mortar. The experimental results on unreinforced structures are compared with those obtained on the strengthened ones in terms of failure mode, maximum load, stiffness and ductility.
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