2. LVL STRUCTURES IN FLOORS, WALLS, ROOFS AND IN SPECIAL APPLICATIONS Figure 2.20. LVL open box slabs of intermediate floor constructions in multi-storey buildings. Figure 2.21. Installation of an LVL open box slab element. Figure 2.22. Span table of LVL rib slab and open box slabs for predesign of compartment floors. Loads: 2,0 kN/m2 imposed load, 0,3 kN/m2 partition load and 1,6 kN/m2 self-weight including 50mm screed in addition to the LVL members. Transverse bracings are according to Figure 2.5. Lowest natural frequency f1 > 8 Hz and maximum deflection under 1kN point load is 0,5 - 0,8 mm depending on the span length (Finnish National Annex requirements for EN1995-1-1). T-section with 25 mm LVL 36 C top slab and 51 x 200-450 mm LVL 48 P ribs in 612 mm spacing. Open box section with 25 mm LVL 36 C top slab, 45 x 200-450 mm LVL 48 P ribs in 612 mm spacing and 43x300 mm sanded LVL 48 P bottom flange. Metsä Wood LVL 02, Figure 2.19.A 475 425 385 325 285 250 225 7,2 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 6,7 6,3 5,7 5,2 4,7 4,2 Maximum span length [m] LVL RIB SLAB FLOORS Height of rib slab [mm] 518 468 428 368 328 293 268 8,6 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 8,1 7,7 7,1 6,6 6,2 6,0 Maximum span length [m] LVL OPEN BOX SLAB FLOORS Height of open box slab [mm] LVL 02, Figure 2.19.B 62 LVL Handbook Europe
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