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2. LVL STRUCTURES IN FLOORS, WALLS, ROOFS AND IN SPECIAL APPLICATIONS
Figure 2.8.
Maximum span lengths of LVL 48 P floor joists for predesign of compartment floors. 2,0 kN/m
2
live load, 0,3 kN/m
2
partition load
and 1,6 kN/m
2
self-weight including a 50 mm screed in addition to the LVL members. The
basic
option has c/c400 mm joist spacing, 22 mm
chipboard decking without gluing and no transverse bracings. In
advanced
option has transverse bracing, glued decking and 45x45 mm c/c
400 mm cross batten underneath the joists. Lowest natural frequency f
1
> 8 Hz and maximum deflection under 1kN point load is 0,5 - 0,8 mm
depending on the span length (FI NA requirement for EN1995-1-1).
LVL 02, Figure 2.7
Maximum span length [m]
63x500
51x400
45x360
75x300
45x300
45x260
45x240
75x200
45x200
LVL 48 P JOISTS FOR COMPARTMENT FLOOR
Floor joist size
Advanced
Basic
7,9
0
1
2
3
4
5
6
7
8
9
7,5
6,6
6,2
6,1
5,7
5,9
5,6
5,6
5,0
4,6
4,4
4,2
4,2
4,2
4,1
3,7
3,5
Figure 2.7.
Maximum span lengths of LVL 48 P floor joists for predesign of residential floors. 2,0 kN/m
2
live load, 0,3 kN/m
2
partition load and
0,6 kN/m
2
self-weight. The
basic
option has c/c400 mm joist spacing, 22 mm chipboard decking without gluing and no transverse bracings. The
advanced
option has transverse bracing, glued deck panel and 45x45 c/c 400mm cross batten underneath the joists. Lowest natural frequency
f
1
> 8 Hz and maximum deflection under 1kN point load is 0,5 - 0,8 mm depending on the span length (FI NA requirement for EN1995-1-1).
Maximum span length [m]
63x500
51x400
45x360
75x300
45x300
45x260
45x240
75x200
45x200
LVL 48 P JOIST FOR RESIDENTAL FLOOR
Floor joist size
Advanced
Basic
9,0
0
1
2
3
4
5
6
7
8
9
7,1
7,5
5,4
6,9
4,8
6,8
4,6
6,0
4,2
5,1
3,5
4,8
3,3
4,7
3,2
4,0
2,9
54
LVL Handbook Europe