Research Article
Impact of Cyclic Loading on Chloride Diffusivity and Mechanical Performance of RC Beams under Seawater Corrosion
(a) Tests of between-subjects effects |
| Dependent variable | Source | Type III sum of squares | Df | Mean square | | Sig. |
| Reduction of yield load | Corrected model | | 5 | 210.746 | 30.072 | 0.000 | Intercept | 7203.000 | 1 | 7203.000 | 1027.817 | 0.000 | Cycles | 297.247 | 3 | 99.082 | 14.138 | 0.004 | Max load | 756.485 | 2 | 378.242 | 53.973 | 0.000 | Error | 42.048 | 6 | 7.008 | | | Total | 8298.780 | 12 | | | | Corrected total | 1095.780 | 11 | | | |
| Reduction of ultimate load | Corrected model | | 5 | 119.551 | 22.438 | 0.001 | Intercept | 6528.667 | 1 | 6528.667 | 1225.338 | 0.000 | Cycles | 235.289 | 3 | 78.430 | 14.720 | 0.004 | Max load | 362.465 | 2 | 181.233 | 34.015 | 0.001 | Error | 31.968 | 6 | 5.328 | | | Total | 7158.390 | 12 | | | | Corrected total | 629.723 | 11 | | | |
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Note. squared = 0.962 (adjusted squared = 0.930). squared = 0.949 (adjusted squared = 0.907).
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(b) Post hoc test (dependent variable: reduction of yield load) |
| Cycles | | Subset | Max load | | Subset | 1 | 2 | 1 | 2 | 3 |
| 1 | 3 | 21.1667 | | 0.4 | 4 | 15.3000 | | | 10 | 3 | 21.6000 | | 0.5 | 4 | | 23.5250 | | 5 | 3 | 22.1333 | | 0.6 | 4 | | | 34.6750 | 20 | 3 | | 33.1000 | | | | | | Sig. | | 0.680 | 1.000 | Sig. | | 1.000 | 1.000 | 1.000 |
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Note. The error term is mean square (error) = 7.008. Alpha = 0.05.
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(c) Post hoc test (dependent variable: reduction of ultimate load) |
| Cycles | | Subset | Max load | | Subset | 1 | 2 | 1 | 2 |
| 1 | 3 | 16.0000 | | 0.4 | 4 | 15.6500 | | 10 | 3 | | 24.1000 | 0.5 | 4 | | 26.1000 | 5 | 3 | | 25.4333 | 0.6 | 4 | | 28.2250 | 20 | 3 | | 27.7667 | | | | | Sig. | | 1.000 | 0.109 | Sig. | | 1.000 | 0.241 |
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Note. The error term is mean square (error) = 5.328. Alpha = 0.05.
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