2306.1 Allowable Stress Design
The design and construction of wood elements in structures using allowable stress design shall be in accordance with the following applicable standards:
American Wood Council.
| ANSI/AWC NDS | National Design Specification for Wood Construction |
| SDPWS | Special Design Provisions for Wind and Seismic |
American Society of Agricultural and Biological Engineers.
| ASABE EP 484.3 | Diaphragm Design of Metal-clad, Wood-Frame Rectangular Buildings |
| ASABE EP 486.2 | Shallow Post Foundation Design |
| ASABE EP 559.1 | Design Requirements and Bending Properties for Mechanically Laminated Wood Assemblies |
APA—The Engineered Wood Association.
| ANSI 117 Standard Specifications for Structural Glued Laminated Timber of Softwood Species | |
| ANSI A190.1 Structural Glued Laminated Timber | |
| Panel Design Specification | |
| Plywood Design Specification Supplement 1— | |
| Plywood Design Specification Supplement 2—
Design & Fabrication of Glued Plywood-lumber Beams
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| Plywood Design Specification Supplement 3— | |
| Plywood Design Specification Supplement 4— | |
| Plywood Design Specification Supplement 5—
Design & Fabrication of All-plywood Beams
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| APA T300 | Glulam Connection Details |
| APA S560 | Field Notching and Drilling of Glued
Laminated Timber Beams
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| APA S475 | Glued Laminated Beam Design Tables |
| APA X450 | Glulam in Residential Construction |
| APA X440 | Product and Application Guide: Glulam |
| APA R540 | Builders Tips: Proper Storage and Handling of Glulam Beams |
Truss Plate Institute, Inc.
| TPI 1 | National Design Standard for Metal Plate Connected Wood Truss Construction |
West Coast Lumber Inspection Bureau
| AITC 104 | Typical Construction Details | |
| AITC 110 | Standard Appearance Grades for Structural Glued Laminated Timber | |
| AITC 113 | Standard for Dimensions of Structural Glued Laminated Timber | |
| AITC 119 | Standard Specifications for Structural Glued Laminated Timber of Hardwood Species | |
| AITC 200 | Inspection Manual |
The allowable unit stresses for preservative-treated wood need not be adjusted for treatment, but are subject to other adjustments.
The allowable unit stresses for fire-retardant-treated wood, including fastener values, shall be developed from an approved method of investigation that considers the effects of anticipated temperature and humidity to which the fire-retardant-treated wood will be subjected, the type of treatment and the redrying process. Other adjustments are applicable except that the impact load duration shall not apply.
The capacity of lumber decking arranged according to the patterns described in Section 2304.9.2 shall be the lesser of the capacities determined for flexure and deflection according to the formulas in Table 2306.1.4.
ALLOWABLE LOADS FOR LUMBER DECKING
| PATTERN | ALLOWABLE AREA LOADa, b | |
| Flexure | Deflection | |
| Simple span |  |  |
| Two-span continuous |  |  |
| Combination simple- and two-span continuous |  |  |
| Cantilevered pieces intermixed |  |  |
| Controlled random layup | ||
| Mechanically laminated decking |  |  |
| 2-inch decking |  |  |
| 3-inch and 4-inch decking |  |  |
- σb = Allowable total uniform load limited by bending.
σΔ = Allowable total uniform load limited by deflection. - d = Actual decking thickness.
l = Span of decking.
Fb' = Allowable bending stress adjusted by applicable factors.
E' = Modulus of elasticity adjusted by applicable factors.