Minimum cover

The minimum cover of reinforcement is calculated in accordance with the chapter 4.4.1 of EN 1992-1-1.

The nominal cover is calculated using formula 4.1:

Where is:	*c_nom*	The nominal cover
	*c_min*	The minimum cover
	*Δc_dev*	The allowance in design for deviation

The minimum cover is calculated using formula 4.2:

Where is:	*c_min,b*	The minimum cover due to bond requirement according to the table 4.2
	*c_min,dur*	The minimum cover due to environmental conditions according to the table 4.4N
	*Δc_dur,γ*	The additive safety element in accordance with 4.4.1.2(6)
	*Δc_dur,st*	The reduction of minimum cover for use of stainless steel in accordance with 4.4.1.2(7)
	*Δc_dur,add*	The reduction of minimum cover for use of additional protection in accordance with 4.4.1.2(8)

GEO5