32 16. SIZED FOR SPACING. EXPOSURE 1. THICKNESS 0.451 IN. PS 1-09 C-D PRP-108. 15 32 CATEGORY. 000. WOOD. The Natural Choice. Percent of. Percent of. Material . of qualifying sheathing and single-floor grades of plywood for span ratings. .. The E is the axial modulus of elasticity of the material and A is
fact that the actual modulus of elasticity of peeled wood veneer perpendicular to the grain is only about 1 35 that of its parallel modulus. Also compensated is the effect of use of the .. (3) Properties and stresses apply only to APA RATED STURD-I-FLOOR and APA RATED SHEATHING manufactured entirely with veneers.
Modulus of Rupture, frequently abbreviated as MOR, (sometimes referred to as bending strength), is a measure of a specimen's strength before rupture. It can be used to determine a wood species' overall strength; unlike the modulus of elasticity, which measures the wood's deflection, but not its ultimate strength. (That is to
Determine toughness, moduli of elasticity (where applicable), and compressive strengths of all samples. Determine which Uses include high-grade plywood and flooring. It is also used Our data produced expected stress-strain curves with a modulus of elasticity, compressive strength, and a breaking point. When testing
PRP-108. THE ENGINEERED. WOOD ASSOCIATION. APA. WOOD. The Miracle Material . Percent of. Percent of. Material. Production. Energy Use. Wood. 47. 4. Steel. 23. 48 . since the behavior of plywood sheathing used as roof and floor diaphragms has been well .. E = elastic modulus of chords (psi) from National.
more wood products. That's why using APA trademarked I-joists, glued laminated timbers, laminated veneer lumber, plywood and oriented strand board is the right thing to do. A few facts about wood. .. Etop = Modulus of elasticity of top skin (lb in.2) 3.4.5. EIg = Gross .. actual stiffness. Where roof and floor panels are.
furniture, reels, trailer liners and recreational vehicle floors. Figure 3 shows siding and I-joist application of. OSB in building construction. Similar to other wood any significant problems in terms of its dimensional stability. 145-3. PROPERTY. PLYWOOD. OSB. Bending strength. Modulus of elasticity. Modulus of rupture.
Roofs 4.2. Floors 4.3. Vehicle floors 4.4. Concrete formwork 4.5. TECHNICAL PROPERTIES OF FINNISH PLYWOOD. Mechanical properties 3.1. Moisture properties 3.2. Biological durability 3.3 .. In addition to strength, modulus of elasticity and shear modulus the density and section properties are needed as input values
Describes performance standards for structural wood panels and the compositions of different types of APA panels with the Performance Rated designations of APA Rated Sheathing, APA Rated Sturd-I-Floor, and APA Rated Siding. It also describes where Performance Rated panels are used and provides updated
spans and fixing requirements for plywood floors, roofs and decking can be found in manufacturer's literature. plywood should be laid . for dry structural plywood. Stress grade. Bending tension. Panel shear rolling shear compression in the plane of the sheet. Bearing normal to the plane of the sheet. Modulus of elasticity.
Flooring is manufactured using extra fine wood particles. This ensures a far better distribution of the water Particleboard Flooring. Property. Board Thickness. Unit. 19mm. 22mm. Weight. Kg m2. 13.1. 14.7. Modulus of Rupture. MPa. 25 av. 25 av. Modulus of Elasticity. MPa. 3400 av. 3400 av. Internal Bond. MPa. 800 av.
It is also used for decorative plywood, decorative veneer, domestic flooring, factory flooring, general carpentry, interior construction, joinery (external). Spruce wood from Central and Eastern Europe shows Modulus of elasticity under bending, 12500 N⁄mm2. Modulus of rupture under bending, 77 N⁄mm2.
Technically it's a measurement of the ratio of stress placed upon the wood compared to the strain (deformation) that the wood exhibits along its length. MOE is expressed in pounds-force per square inch (lbf in2) or gigapaschals (GPa). This number is given for wood that has been dried to a 12% moisture content, unless
The National Design. Specification for Wood Construction (NDS) provides guidance on the use of adjustment factors. General Design Information. Methods presented in this section may be used to calculate uniform load capacity of structural-use panels in floor, roof and wall applications. The design capacities presented in
CLT Floor Design: Strength, Deflection and. Vibrations. Scott Breneman, PhD, PE, SE. Senior Technical Director. Architectural and Engineering Solutions. WoodWorks Wood Products Council. Toward Taller Wood Buildings. November . Given lumber for a lamination with modulus of elasticity for bending in major strength
The E is the modulus of elasticity of the material and the I is the moment modulus of rigidity and tv is the effective panel thickness for shear. .. and. Parallel to Strength. Perpendicular to Strength Axis(a). APA Rated Sturd-I-Floor. Axis(a). Other. Structural I. Panel Bending Stiffness. 3-ply plywood. 1.1. 1.0. 1.5. 4-ply plywood
However, the section property and design stress technique is still used occasionally to analyze individual plywood layup variations. For more information on panel design capacities, consult Section 4 of APA's Panel Design Specification, Form D510. For typical Modulus of Rupture (MOR) and Modulus of Elasticity (MOE)