Fig. 5

Steps involved in strengthening of beam BS1-O1-CPL using scheme-1: a 1st CFRP layer is completed on both chords, 2nd layer of CFRP U-wrap is completed for top chord, and bottom chord is being fully wrapped with 2nd CFRP layer, b 2nd layer of CFRP U-wrap is completed on one opening side, and c strengthened beam ready for testing.