Table 10 Comparison results of \(w_{{{\text{max}}}}^{{\text{t}}}\) from RC beams with 400 MPa steel bars with \(w_{{{\text{max}}}}^{{{\text{c1}}}}\) by the proposed methods.
From: A Unified Formula for Calculation of Crack Width and Spacing in Reinforced Concrete Beams
Data sources | No. of data/n | hte = 0.4 h | hte = 0.5 h | hte = 4as | hte = 2as | hte = 5.9d + c + d | hte = 5.5d + c + d | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
μ | δ | μ | δ | μ | δ | μ | δ | μ | δ | μ | δ | ||
CR60-1-1 | 4 | 0.99 | 0.21 | 0.97 | 0.24 | 0.97 | 0.22 | 0.96 | 0.18 | 0.98 | 0.22 | 0.98 | 0.22 |
CR60-1-2 | 6 | 1.01 | 0.19 | 1.04 | 0.24 | 1.02 | 0.21 | 0.94 | 0.13 | 1.02 | 0.21 | 1.02 | 0.20 |
Na (2006) | 25 | 0.96 | 0.22 | 0.90 | 0.26 | 0.94 | 0.24 | 1.01 | 0.20 | 0.94 | 0.24 | 0.95 | 0.23 |
Shang (2004) | 15 | 1.07 | 0.12 | 0.98 | 0.13 | 1.05 | 0.12 | 1.18 | 0.13 | 0.94 | 0.13 | 0.96 | 0.13 |
Xiao (2006) | 19 | 0.79 | 0.06 | 0.75 | 0.06 | 0.81 | 0.08 | 0.87 | 0.10 | 0.79 | 0.08 | 0.80 | 0.08 |
Zhu et al. (2018) | 16 | 0.95 | 0.18 | 0.99 | 0.16 | 1.01 | 0.22 | 1.05 | 0.27 | 1.00 | 0.20 | 1.02 | 0.20 |
Sum | 85 | 0.94 | 0.20 | 0.91 | 0.22 | 0.95 | 0.21 | 1.01 | 0.21 | 0.92 | 0.20 | 0.94 | 0.20 |