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Note: The relative slenderness ratio, Xrel, has been included for information.

Note: The relative slenderness ratio, Xrel, has been included for information.

The value of the exponent n for wood-related products is generally taken to be 2 and from the relationship given in equation (4.22) for members loaded in compression perpendicular to the grain (i.e. kcj90 /c,90,d) the compressive strength of the material at

Table 5.3 Value of kc,y or z based on equations (6.25)-(6.29) inclusive in EC5 with j3c = 0.1.

Strength class C14

Strength class C16

Strength class C18

Strength class C22

fc,0,k 16 N/mm2 E0.05 4700 N/mm2

fc,0,k 17 N/mm2 E0.05 5400 N/mm2

fc,0,k 18 N/mm2 E0.05 6000 N/mm2

fc,0,k 20 N/mm2 E0.05 6700 N/mm2

X Xrel kc,y (kc,z ) X

^rel kc,y (kc,z ) ^

^rel kc,y (kc,z ) ^

^rel kc,y (kc,z )

0 0

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