Determined according to EN 1992-1-1
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kc |
Coefficient for considering the influence of the stress distribution in the cross-section prior to cracking as well as the change of the internal lever arm |
|
k |
Coefficient for considering non-uniform self-equilibrating stresses, which lead to the reduction of restraint forces |
|
fct,eff |
Mean value of the effective tensile strength of the concrete, to be expected when the cracks occur |
|
Act |
Area of the concrete tension zone (part of the cross-section or partial cross-section that is calculated to be in tension in the uncracked state under the action combination that leads to the formation of the first crack at the gross cross-section) |
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σs |
Absolute value of the maximum allowable stress in the reinforcement immediately after crack formation |