Experimental and Numerical Investigation on Shear Retrofitting of RC Beams by Prefabricated UHPFRC Sheets
Abstract: Different methods
are used for retrofitting RC members. One of the new methods in this field is
using externally bonded fiber-reinforced Concrete (FRC) sheets in order to
increase RC member’s shear and flexural strength. In this study, applicability
of ultra-high performance fiber-reinforced concrete sheets in shear and
flexural retrofitting of RC beams was investigated. In total, eight RC beams
(dimensions 10×20×150 cm) with two different bending capacity and lack of shear
strength were used and were tested in 3-points bending test. Of these, four
were control beams and four were retrofitted with laterally bonded UHPFRC
sheets. Dimensions of the sheets used for retrofitting were (3×15×126 cm). Also
FEM analysis was used to model the effect of The method. the results show that
this method can be well used for retrofitting RC beams. In this method the way
of connecting sheets to beam’s surfaces has a fundamental role in behavior of
retrofitted beams.
Author: Kian Aghani, Hassan
Afshin
Journal Code: jptsipilgg160028
