Answer:
For layer structures by the manufacturer Binderholz, as soon as the slabs are defined without narrow side bonding and a verification of shear failure in the plane of the pane is assumed, the shear strengths are calculated according to the following equation.$f_{v,k}=min\left\{\begin{array}{l}\begin{array}{c}3.5\\8.0\frac{D_{net}}D\\\end{array}\\2.5\frac{(n-1)(a²+b²)}{6*D*b}\end{array}\right.$
where
D is the element thickness,
Dnet is the sum of the longitudinal and transverse layer thicknesses in the element,
n is the number of board layers,
a = b is the width of the boards in the longitudinal or transverse layers.
All values are in N/mm². For more detailed information, check the manufacturer's approval.
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