Two modified concrete beams reinforced with GFRP bars
(beams Ra): in these beams, to assess the redistribution
capacity under similar circumstances to those of beam R,
the longitudinal top reinforcement in GFRP was underdesigned
while its bottom counterpart was over-designed
(compared to beams E, position of top and bottom reinforcements
were swapped) – in practice, this corresponded to
force the (eventual) formation of a hinge on the central support
section.