In Plattenebene beanspruchte Biegeträger aus Brettsperrholz - Teil 2: Brettsperrholzträger mit angeschnittenen Rändern, Durchbrüchen oder Ausklinkungen

CLT beams loaded in plane direction - Part 2: Tapered CLT beams and CLT beams with holes or notches

Based on Eurocode 5 equations for the calculation of strength reduction factors for glulam beams, a method to determine the bending strength of CLT beams with tapered edges is presented. The strength properties of CLT beams needed as input values are defined in dependence of the beam layup taking into account possible failure modes. For CLT beams with holes or notches stress based design approaches are introduced. For the calculation of stresses perpendicular to the beam axis existing approaches given in the German National Annex to Eurocode 5 for reinforced glulam beams with holes or notches are used. Stress concentration factors determined by means of finite element method are introduced.