Crack width national annexes

 

National annexes are supported in crack width. The following items are supported.

• w_lim - Limit value of crack width for concrete with standard reinforcement mesh - Standard EN: Table 7.1N

Exposure class	Reinforced members - Quasi permanent load combination	Prestress members - Frequent load combination
X0, XC1	0,4	0,2
XC2, XC3, XC4	0,3	0,2
XD1, XD2, XS1, XS2, XS3	0,3	Decompression

• w_{lim_fibre} - Limit value of crack width for concrete without standard reinforcement mesh (only steel fibre reinforced concrete) - Standard EN: Table R.4

Exposure class	Reinforced members - Quasi permanent load combination
X0, XC1	0,4
XC2, XC3	0,3
XC4	0,2
XD1, XS1	0,2

• k₃ - Coefficient for calculation maximal final crack spacing - Standard EN: 3,4
• k₄ - Coefficient for calculation maximal final crack spacing - Standard EN: 0,42
• s_r,max - Maximal crack spacing - Standard EN: s_r,max = 1,3 ∙ (h - x_r)

For national possibilities see list of National Annexes.