Plywood Design

Pr o j e c t : L o c at i o n : Cl i en t : Job Title

Mad e B y: Ch ec k ed B y: Dat e: Job.No/ Rev.

PLYWOOD PANEL DESIGN AND ANAL YSIS

PL YWOOD PANEL :

REF.  ACI SP-07

1. PROPERTIES: 1.1 Plywood: tp = N_L = Ply_cn =

 At = Ix = KS = Ib/Q =  Ap_w t =

CGB

3/4 in 5.0 unitless unitless 1.0 unitless unitless

2.884 in² 0.197 in4 0.412 in³ 6.762 in² 2.200 lb/ft²

Fb = 1545 lb/in² Fv = 57 lb/in² E = 1.50E+06 1.50E+06 lb/in²

Plywood thickness Minimum number of layers 1.0 - Face Grain Parallel to the Span 2.0 - Face Grain Perpendicular to the Span

Table 4.2

 Area in tension & compression Moment of Inertia Effective Section modulus Rolling Shear Constant  Approximate weight for 4x8' panel

Table 4.3

Bending Stress Shearing Stress Modulus of Elasticity

PLYWOOD CONFIGURATION

1.2 Support: Type =

2.0 unitless unitless

2. LOADINGS: 2.1 Dead Load: - Concrete Slab: ts = 4.00 in 150.0 lb/ft³ c=  Ap_w t = 2.20 lb/ft²

1.0 - Simple, 2.0 - Continuous

100 mm Thickness of Slab Unit Weight of Concrete  Approximate weight for 4x8' panel

2.2 Live Load: Cll = 50.00 lb/ft²

2.40 kN/m² Construction Live Load

2.3 Load Summary: CL = 102.20 lb/ft²

4.91 kN/m² Total Construction Load

Table 4.3

 ASCE 37-02 Table 2 PANEL ASSEMBLY

3. DESIGN AND ANALYSIS: Calculate the maximum spacing, (Ls). 3.1 Check Check in B ending Stress: Ls =

27.33 in

Maximum spacing of Beam support

3.2 Check Check in Shearing Stress: Ls =

75.43 in

Eqtn 6.8-9 102.20 102 .20 l b/ft²

Maximum spacing of Beam support

Eqtn 6.14

3.3 Check in Deflection: (L/360) Ls =

24.08 in

Maximum spacing of Beam support

4. SUMMARY RESULT: 4.1 Maximum Maximum spacing of beam support i n the Plywood panel L=

24.08 in

L=

600.0 mm

Eqtn 6.1-4 PLYWOOD LOADINGS

 Allowable Spacing of the Beam Support Spacing in Milimeters

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