Research Article
Stiffness and Crack Behavior of Unbonded Posttensioned Concrete Beam Strengthened with Aluminum Alloy Plate
Table 6
Calculation results and experimental data of mean crack spacing.
| No. | ρs | ρa | Experimental data of lcr (mm) | Calculation results of lcr (mm) | Error (%) |
| SL1 | 0.006 | 0.015 | 154 | 157 | 1.9 | SL2 | 0.013 | 0.015 | 133 | 128 | −3.9 | SL3 | 0.025 | 0.015 | 111 | 111 | 0 | SS1 | 0.008 | 0.02 | 142 | 137 | −3.7 | SS2 | 0.017 | 0.02 | 114 | 114 | 0 | SS3 | 0.025 | 0.02 | 105 | 106 | 0.9 |
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