Rehabilitation of Hybrid RC-I Beams with Openings Using CFRP Sheets

This research presents an experimental investigation of the rehabilitation efficiency damaged hybrid reinforced concrete beams with openings in shear region. The study investigates difference retrofitting ability compared to traditional and effect two one opening equalized holes area. Five RC classified into groups, A B, were primarily tested full-failure under two-point loads. first group (A) contained normal weight concrete. second (hybrid) included lightweight for web bottom flange, whereas top flange was made from Two types considered this study, rectangular, dimensions 100×200 mm, square a side dimension 100 mm. full wrapping configuration system region (failure zone) adopted research. Based on test results, repaired managed recover their load carrying capacity, stiffness, structural performance different degrees. beam regains its total capacity all openings, while gain 84% strength. strength members is 81 88% respectively. Doi: 10.28991/CEJ-2022-08-01-012 Full Text: PDF