Table 3 Various specifications for the average flexural crack width.
Specifications | Average/maximum | Recommended equations |
|---|---|---|
ACI-318 (2014) | Average spacing | \( 1.5\sqrt {d_{c}^{2} + \left( {\frac{s}{2}} \right)^{2} } \) |
AIJ (2010) | Average spacing | \( 2\left( {\frac{{c_{b} + c_{s} }}{2} + \frac{s}{10}} \right) + 0.1\frac{{\phi_{b} }}{{p_{e} }} \) |
JSCE (2007) | Maximum spacing | \( 1.1k_{1} k_{2} k_{3} [4c + 0.7(s - \phi_{b} )] \) |
CEB-fib Model Code (2010) | Maximum spacing | \( 2 \times \left( {k \times c + \frac{1}{4} \times \frac{{f_{ctm} }}{{\tau_{bms} }} \times \frac{{\phi_{b} }}{{\rho_{s,ef} }}} \right) \) |