| dc.description.abstract | After planning the 6 chapters for the assembly of my dissertation, a comprehensive review
was carried out to describe the structural recovery techniques of bending reinforced
concrete beams or shear, showing advantages and disadvantages that allow choosing a
good structural recovery within the existing one. The partial jacketing technique was
developed to combat flexion, through Santos (2006), where 4 beams were used for
experimental purposes, 2 reference beams that were called (REF1 and REF2), and 2
reinforced beams (VR1 and VR2) to partial bending, based on the beam (REF1), the tests
were carried out and the results were found. Another very interesting study was carried
out by Júnior (1997), with thin steel sheets glued to the sides of the beam with epoxy
resin, to combat shear. Four reinforced concrete beams were prepared with the same
tensile and compression reinforcement that were called VS1, VS2, VS3 and VS4 and with
the same dimensions another one without stirrups that was called VSE (beam without
stirrup). cracked until the first cracks resulting from shearing to load up to 50 KN appear.
Subsequently, thin steel sheets were glued to the sides of beams VC1, VC2, VC3, and
VC4, and after testing obtaining different results, it was possible to draw several graphs
that are attached to the dissertation. A design was carried out to reinforce a bending beam
using carbon fiber, the method described is iterative, starting with an arbitrary depth of
the neutral line shown in subitem 4.37 and with the calculations of the deformations and
stresses of the constituent elements of the structural element obtaining the value of the
calculated neutral line, if the values converge from c (arbitrated) to c (calculated), the
method was concluded. Finally, the dimensioning for the recovery of a reinforced
concrete beam with the use of carbon fiber was developed, with the results found, it was
possible to comment on the discussions and conclusions, as well as, the recommendations
for future work in this highly relevant area. | eng |
