Table 1 Test matrix.
Beam ID | Opening size (mm) | Type of loading | Strengthening scheme | No. of specimens | Notes | |
|---|---|---|---|---|---|---|
Depth, ho | Length, â„“o | |||||
BC-N-4PB | No opening | 4-point bending | Unstrengthened | 1 | Control specimen | |
BC-O1-4PB | 225 | 450 | 4-point bending | Unstrengthened | 1 | Control specimen |
BC-N-CPL | No opening | Center-point loading | Unstrengthened | 1 | Control specimen | |
BC-O1-CPL | 225 | 450 | Center-point loading | Unstrengthened | 1 | Control specimen |
BS1-O1-CPL | 225 | 450 | Center-point loading | Strengthened with scheme-1: 2 layers (0°/90°) of carbon/epoxy system (see Fig. 4) | 1 |  |
BC-O2-CPL | 225 | 900 | Center-point loading | Unstrengthened | 1 | Control specimen |
BS2-O2-CPL | 225 | 900 | Center-point loading | Strengthened with scheme-2: 2 layers (0°/90°) of E-glass/epoxy system + 5 mm thick steel plates (see Fig. 6) | 1 |  |
Total no. of specimens | 7 | Â | ||||