2. LVL STRUCTURES IN FLOORS, WALLS, ROOFS AND IN SPECIAL APPLICATIONS Figure 2.64. LVL-P integrated rim beam for timber frame wall structures. The bracing and load-bearing beam fits the thickness of timber-frame walls. Key benefit: More possibilities for opening positioning with fewer load-bearing columns. Calculations according to EN 1995-1-1:2004+A1:2008 and its Finnish National Annex. Permanent load is 25% of total characteristic load, the remainder is snow load. Wind load not accounted for. Service class 1 or 2; consequences class CC2. The beam has lateral torsional buckling supports on the top surface at ≤ 600 mm spacing. Support length to be calculated separately. Net final deflection wnet,fin ≤ L/300. γM = 1,2. Doesn´t replace project-specific structural design. Figure 2.65. Capacities [kN/m] of single-span LVL 48 P integrated rim beams for predesign. 0 5 10 15 20 25 30 35 40 1,5 2,0 2,5 3,0 3,5 4,0 Characterastic load [kN/m] Maximum span length [m] LVL 48 P rim beams h = 200 - 300mm 45x200 45x240 45x260 45x300 75x200 75x300 LVL Handbook Europe 89
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