Research Article
Shear Strengthening of RC Beams Using Sprayed Glass Fiber Reinforced Polymer
Table 4
Product of
for different configurations of sprayed GFRP.
| | Sprayed GFRP configuration | Beam name | Peak load (kN) | Peak load of control beam (kN) | Contribution of GFRP in shear strength (kN) (-) | , FRP width (mm) | , FRP thickness (mm) | tensile modulus of elasticity of FRP (MPa) | | | | | | | | | |
| | Sprayed FRP on two sides with epoxy | B2-NS-EP | 96.8 | 79 | 17.8 | 100 | 2.2 | 14000 | 6160 | | B2-S-EP | 144.9 | 91.6 | 53.3 | 120 | 6 | 14000 | 20160 |
| | Sprayed FRP on two sides with mechanical fasteners | B2-4B-NS-1 | 92 | 77.2 | 14.8 | 100 | 1.8 | 14000 | 5040 | | B2-4B-NS-2 | 99.4 | 77.2 | 22.2 | 100 | 2.5 | 14000 | 7000 | | B2-4B-NS-3 | 111.5 | 77.2 | 34.3 | 100 | 4 | 14000 | 11200 | | B2-4B-S-1 | 122.4 | 87.7 | 34.7 | 120 | 3.5 | 14000 | 11760 | | B2-4B-S-2 | 129.8 | 87.7 | 42.1 | 120 | 4.2 | 14000 | 14112 | | B2-4B-S-3 | 132.8 | 87.7 | 45.1 | 120 | 4.5 | 14000 | 15120 | | B2-6B-NS-1 | 108.1 | 77.2 | 30.9 | 100 | 3.5 | 14000 | 9800 | | B2-6B-NS-2 | 117.2 | 77.2 | 40 | 100 | 4 | 14000 | 11200 | | B2-6B-NS-3 | 121.9 | 77.2 | 44.7 | 100 | 4.5 | 14000 | 12600 | | B2-6B-S-1 | 126.7 | 87.7 | 39 | 100 | 4 | 14000 | 11200 |
| | Sprayed FRP on three sides | B3-S-1 | 128.5 | 91.6 | 36.9 | 120 | 3.2 | 14000 | 10752 | | B3-S-2 | 135.4 | 91.6 | 43.8 | 120 | 4 | 14000 | 13440 | | B3-S-3 | 157.1 | 91.6 | 65.5 | 120 | 7 | 14000 | 23520 | | B3-S-4 | 166 | 91.6 | 74.4 | 120 | 8 | 14000 | 26880 |
| | Sprayed FRP on two sides (no epoxy, no mechanical fasteners) | B2-NS | 105.5 | 79 | 26.5 | 100 | 4 | 14000 | 11200 | | B2-S-1 | 117.2 | 91.6 | 25.6 | 120 | 3.5 | 14000 | 11760 | | B2-S-2 | 128.9 | 91.6 | 37.3 | 120 | 4.5 | 14000 | 15120 | | B2-S-3 | 129.3 | 91.6 | 37.7 | 120 | 5.6 | 14000 | 18816 | | B2-S-4 | 132.1 | 91.6 | 40.5 | 120 | 6 | 14000 | 20160 | | B2-S-5 | 133.2 | 91.6 | 41.6 | 120 | 7 | 14000 | 23520 |
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