Title: Listeskrue 3,5x45.pdf
(cid:2870) ∗ (cid:4672) ρk(cid:1858)(cid:3035)(cid:3032)(cid:3028)(cid:3031),(cid:3031) ∗ (cid:1856)(cid:3035)(cid:1858)(cid:3047)(cid:3032)(cid:3041)(cid:3046),(cid:3031)(cid:4673) 3500,8[N]where: fax,d ddesign value of the axial withdrawal parameter of the threaded part of the screw outer thread diameter of the screw Point side penetration length of the threaded part of the screw in the rafter, lef ≥ 40 mmef  k fhead,d dh k1 k2 tHI σ 10% ftens,dAngle between grain and screw axis ( > 30°) characteristic density of the wood-based member [kg/m³] design value of the head pull-through capacity of the screw head diameter min {1; 200/tHI} min {1; σ10%/0,12} thickness of the heat insulation [mm] compressive stress of the heat insulation under 10 % deformation [N/mm²] Design value of the tensile capacity of the screw [N]