Table 2 Statistical parameters for the ratios of the model prediction to the test results.
From: Modeling of Bond Stress–Slip Relationships of a Strand in Concrete during Steam Curing
Nos. | Names | Concrete strength | Parameters in bond stress–slip relationships | |||||
|---|---|---|---|---|---|---|---|---|
Slips | Bond stresses | Shape parameter | ||||||
S | s 1 | s 2 | s 3 | τ max | τ f | α b | ||
1 | P4A | 0.91 | 1.05 | 1.05 | 1.17 | 1.49 | 1.67 | 0.87 |
2 | P4B | 0.57 | 0.90 | 1.11 | 1.08 | 0.63 | 0.66 | 1.02 |
3 | P6A | 1.17 | 1.45 | 1.03 | 0.86 | 1.13 | 1.16 | 1.25 |
4 | P6B | 1.02 | 0.98 | 1.26 | 1.00 | 0.97 | 1.40 | 1.20 |
5 | P6C | 0.96 | 0.72 | 0.84 | 0.75 | 0.94 | 0.79 | 1.15 |
6 | P6D | 1.05 | 1.03 | 0.94 | 0.94 | 0.89 | 0.86 | 1.11 |
7 | P8A | 1.22 | 1.39 | 1.09 | 1.11 | 1.07 | 1.11 | 0.95 |
8 | P8B | 1.09 | 0.90 | 0.85 | 0.93 | 1.18 | 1.14 | 1.14 |
9 | P10A | 1.01 | 1.47 | 1.02 | 1.24 | 1.01 | 0.95 | 1.34 |
10 | P10B | 0.94 | 1.03 | 0.97 | 1.00 | 0.95 | 0.89 | 0.89 |
11 | P10C | 0.92 | 0.88 | 1.08 | 1.05 | 0.97 | 0.94 | 0.73 |
12 | P10D | 0.90 | 0.80 | 0.91 | 1.06 | 0.94 | 0.86 | 0.70 |
Average | 0.99 | 1.05 | 1.01 | 1.02 | 1.01 | 1.04 | 1.03 | |
Standard deviation | 0.12 | 0.25 | 0.12 | 0.13 | 0.20 | 0.28 | 0.20 | |