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Table 1 Test matrix.

From: Behavior of FRP-Strengthened RC Beams with Large Rectangular Web Openings in Flexure Zones: Experimental and Numerical Study

Beam ID Opening size (mm) Type of loading Strengthening scheme No. of specimens Notes
Depth, ho Length, ℓo
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