Table 7 Comparison of experimental ltc with calculated lcccr by the proposed methods.
From: A Unified Formula for Calculation of Crack Width and Spacing in Reinforced Concrete Beams
Proposed methods | hte = 0.4 h | hte = 0.5 h | hte = 4as | hte = 2as | hte = 5.9d + c + d | hte = 5.5d + c + d | |
|---|---|---|---|---|---|---|---|
335 MPa | Mean | 1.06 | 1.07 | 1.08 | 1.06 | 1.13 | 1.11 |
Deviation coefficient | 0.08 | 0.08 | 0.27 | 0.27 | 0.22 | 0.23 | |
400 MPa | Mean | 0.95 | 0.96 | 0.92 | 0.90 | 0.82 | 0.79 |
Deviation coefficient | 0.22 | 0.22 | 0.20 | 0.20 | 0.23 | 0.24 | |
500 MPa | Mean | 1.04 | 1.06 | 1.19 | 1.17 | 1.04 | 1.03 |
Deviation coefficient | 0.13 | 0.13 | 0.26 | 0.27 | 0.23 | 0.23 | |
600 MPa | Mean | 1.01 | 1.03 | 0.97 | 0.96 | 0.95 | 0.94 |
Deviation coefficient | 0.12 | 0.12 | 0.12 | 0.12 | 0.13 | 0.13 | |
Sum | Mean | 1.03 | 1.05 | 1.11 | 1.09 | 1.03 | 1.02 |
Deviation coefficient | 0.13 | 0.13 | 0.26 | 0.26 | 0.23 | 0.23 | |