Numerical description of size and load configuration effects in glulam structures

The limit states design requires realistic strength values for the verification of reliable glulam structures. Here, the problem arises that the probabilistic system effect strongly affects load-carrying capacities. Considering this effect, modification factors for the glulam bending and tensile strength values are determined, based on strength simulations on various member sizes and structural systems. Using the proposed factors in the practical design of the treated problems leads to a structural reliability, which is more consistent, since the proposed factors cover the inherent system effects correspondingly.