Research Article
Performance of Retrofitted Self-Compacting Concrete-Filled Steel Tube Beams Using External Steel Plates
Table 7
Ultimate moments and percentage of increase in moment capacity.
| | Group name | Designation of beams | Moment capacity (kN·m) | % increase in moment capacity compared to CB (kN·m) |
| | Group A (single bottom plate) | HB-A | 7.62 | — | | CB-A | 17.04 | — | | IB-PL-SB | 16.99 | 0.00 | | IB-FL-SB | 18.69 | 9.70 | | RB-PL-SB | 17.20 | 0.92 | | RB-FL-SB | 21.61 | 26.80 |
| | Group B (top and bottom plates) | HB-B | 7.56 | — | | CB-B | 17.04 | — | | IB-PL-TB | 17.57 | 3.14 | | IB-FL-TB | 20.84 | 22.29 | | RB-PL-TB | 17.92 | 5.21 | | RB-FL-TB | 24.80 | 45.55 |
| | Group C (double bottom plates) | HB-C | 7.51 | — | | CB-C | 17.04 | — | | IB-PL-DB | 17.47 | 2.54 | | IB-FL-DB | 19.60 | 15.03 | | RB-PL-DB | 17.21 | 1.00 | | RB-FL-DB | 23.13 | 35.72 |
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