Research Article
Strengthening of Hollow Square Sections under Compression Using FRP Composites
Table 1
Maximum deformation, percentage of reduction in deformation, and increase in load carrying capacity.
| | Designation of columns | Failure load
(kN) | Maximum axial deformation
(mm) | % of reduction in axial deformation compared to CC2 (kN) | % of increase in axial load carrying capacity (kN) | Slenderness value () |
| | CC1 | 546 | 8.29 | — | — |
0.46 | | CC2 | 564 | 8.35 | — | — | | CC3 | 549 | 8.5 | — | — |
| | HS-50-20-T1(1) | 709 | 7.91 | 68.68 | 25.71 |
0.35 | | HS-50-20-T1(2) | 692 | 7.45 | 65.34 | 22.69 | | HS-50-20-T1(3) | 697 | 7.57 | 67 | 23.58 |
| | HS-50-20-T2(1) | 764 | 7.46 | 116.88 | 35.46 |
0.31 | | HS-50-20-T2(2) | 747 | 6.93 | 111.98 | 32.44 | | HS-50-20-T2(3) | 753 | 7.07 | 114.87 | 33.51 |
| | HS-50-20-T3(1) | 814 | 6.12 | 163.40 | 44.32 |
0.28 | | HS-50-20-T3(2) | 803 | 6.02 | 161.56 | 42.37 | | HS-50-20-T3(3) | 798 | 5.94 | 159.45 | 41.48 |
| | HS-50-30-T1(1) | 690 | 9.27 | 53.21 | 22.34 |
0.35 | | HS-50-30-T1(2) | 682 | 9.12 | 50.96 | 20.92 | | HS-50-30-T1(3) | 691 | 9.23 | 51.67 | 22.51 |
| | HS-50-30-T2(1) | 749 | 8.18 | 92.39 | 32.8 |
0.31 | | HS-50-30-T2(2) | 741 | 8.02 | 91.43 | 31.38 | | HS-50-30-T2(3) | 739 | 7.98 | 89.6 | 31.03 |
| | HS-50-30-T3(1) | 770 | 7.02 | 125.67 | 36.52 |
0.28 | | HS-50-30-T3(2) | 764 | 7.03 | 123.7 | 35.46 | | HS-50-30-T3(3) | 761 | 6.94 | 122.34 | 34.92 |
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