Peri MULTIFLEX - Plywood; 21 mm Plywood Deflection Chart

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Plywood
Plywood 21 mm
LLLLLLL
f f
E = 3000 N/mm
2
E = 4000 N/mm
2
E = 5000 N/mm
2
E = 6000 N/mm
2
E = 7000 N/mm
2
E = 8000 N/mm
2
8.0 6.4 5.3 4.6 4.0
9.3 7.0 5.6 4.7 4.0 3.5
8.0 6.0 4.8 4.0 3.4 3.0
6.7 5.0 4.0 3.3 2.9 2.5
5.3 4.0 3.2 2.7 2.3 2.0
4.0 3.0 2.4 2.0 1.7 1.5
2.7 2.0 1.6 1.3 1.1 1.0
1.3 1.0 0.8 0.7 0.6 0.5
0.0 0.0 0.0 0.0 0.0 0.0
Deflection f [mm]
0 10 20 30 40 50 60 70 80 90 100
0 20 40 60 80 100
10 30 50 70 90
Slab Thickness d [cm]
Fresh Concrete
Pressure m
hk
[kN/m
2
]
70 cm 60 cm 55 cm 50 cm 45 cm
35 cm
30 cm
25 cm
= 13 N/mm
2
= 11 N/mm
2
= 9 N/mm
2
= 7 N/mm
2
Span L
65 cm
= 5 N/mm
2
40 cm
75 cm
Wall Formwork
Slab Formwork
max. deflection
The E-Modulus and the permissible
stress are based on the grade and
moisture content of the plywood.
(See “Overview, Static Values”)
0.0068 · m
hk
· L
4
f =
E · I
max. moment
(valid for min. 3 spans)
M = 0.1071 · m
hk
· L
2
10.7