2001 ASD Supplements - unprotected PDF - American Wood Council

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ASD WOOD STRUCTURAL PANELS SUPPLEMENTSP-19DESIGNADJUSTMENTFACTORS44.1 General SP-204.2 Grade and Construction Factor, C GSP-204.3 Load Duration Factor, C DSP-204.4 Creep Adjustment Factor, C CSP-204.5 Moisture Effect Factor, C MSP-214.6 Preservative Treatment SP-214.7 Fire Retardant Treatment SP-214.8 Panel Size Factor, C sSP-224.9 Temperature Factor, C tSP-22Table 4.2 Frequently Used Load Duration Factors, C D .. SP-20Table 4.3 Creep Adjustment Factor, C C ............................ SP-20Table 4.4 Moisture Effect Factor, C M ............................. SP-21Table 4.5 Panel Size Factor, C s ........................................ SP-21APA – The Engineered Wood Association
SP-20DESIGN ADJUSTMENT FACTORS4.1 GeneralPanel design capacities are determined by multiplyingbaseline capacities, as given in Tables 3.1 through 3.4,by the adjustment factors in NDS Section 9.3.Tabulated capacities provided in this Supplement aresuitable for reference end-use conditions. Reference enduseconditions are consistent with conditions typicallyassociated with light-frame construction. For wood structuralpanels, these typical conditions involve the use offull-sized untreated panels in moderate temperature andmoisture exposures.Appropriate adjustment factors are provided for applicationsin which the conditions of use are inconsistentwith reference conditions. In addition to temperature andmoisture, this includes consideration of panel treatmentand size effects. Reference conditions and adjustment factorsare provided in Sections 4.2 through 4.9.The tabulated adjustment factors are applicable foruse with capacities of wood structural panels.4.2 Grade and Construction Factor, C GAdjustments to wood structural panel design valuesfor grade and construction and panel size, shall be in accordancewith NDS Section 9.3.4. Reference capacitiespresented in Tables 3.1 through 3.4 of this Supplementrepresent minimum values for each listed grade and construction.Tables 3.1.1, 3.2.1, 3.3.1, and 3.4.1 provideadjustments to the minimum capacities as appropriate forspecific constructions and grades. These Tables are locatedclose to the capacity tables for convenience. To takeadvantage of these, the specifier must insure that the correctpanel is used in the final construction.4.3 Load Duration Factor, C DDesign capacities listed are based on normal loadduration. Adjustment factors for strength capacities shallbe based on NDS Section 9.3.2 (see Table 4.2).Table 4.2Frequently Used LoadDuration Factors, C D1Load Duration C D Typical Design LoadsPermanent 0.9 Dead LoadTen years 1.0 Occupancy Live LoadTwo months 1.15 Snow LoadSeven days 1.25 Construction LoadTen minutes 1.6 Wind/Earthquake LoadImpact 2 2.0 Impact Load1. Load duration factors shall not apply to modulus of elasticity, E, nor tocompression perpendicular to grain design values, F c⊥ , based on a deformationlimit.2. Load duration factors greater than 1.6 shall not apply to structural memberspressure-treated with water-borne preservatives, or fire retardant chemicalsand are not recommended for wood structural panels. The impact loadduration factor shall not apply to connections.APA – The Engineered Wood Association
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SUPPLEMENTStructural LumberASDALLOW
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SUPPLEMENTStructural LumberASDALLOW
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ASD WOOD STRUCTURAL FRAME CONSTRUCT
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ASD STRUCTURAL LUMBER SUPPLEMENTL-1
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SUPPLEMENTStructural GluedLaminated
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ASD STRUCTURAL GLUED LAMINATED TIMB
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ASD STRUCTURAL GLUED LAMINATED TIMB
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GL-2DESIGNER FLOWCHART1.1 Flowchart
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GL-4INTRODUCTION TO STRUCTURAL GLUE
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GL-6INTRODUCTION TO STRUCTURAL GLUE
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GL-8ALLOWABLE STRESS AND STIFFNESS3
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GL-10ALLOWABLE STRESS AND STIFFNESS
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GL-12ALLOWABLE STRESS AND STIFFNESS
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GL-14DESIGN ADJUSTMENT FACTORS4.1 G
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GL-16DESIGN ADJUSTMENT FACTORS4.9 V
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GL-18DESIGN ADJUSTMENT FACTORSTable
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GL-30CAPACITY SELECTION TABLES5.1 G
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GL-32CAPACITY SELECTION TABLESTable
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GL-56OTHER CONSIDERATIONS6.1 Genera
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GL-58OTHER CONSIDERATIONSTable 6.3
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GL-60OTHER CONSIDERATIONSAMERICAN W
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GL-62LOAD AND SPAN TABLES7.1 Genera
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GL-64LOAD AND SPAN TABLES7.2 Load-S
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GL-66LOAD AND SPAN TABLESTable 7.2A
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GL-76LOAD AND SPAN TABLESAMERICAN W
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GL-78DESIGN EXAMPLES8.1 GeneralGene
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GL-80SECTION PROPERTIES9.1 Cross Se
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GL-82SECTION PROPERTIESTable 9.1(Co
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SUPPLEMENTTimber Polesand PilesASDA
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ASD WOOD TIMBER FRAME POLES CONSTRU
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ASD WOOD TIMBER FRAME POLES CONSTRU
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ASD TIMBER POLES AND PILES SUPPLEME
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ASD WOOD STRUCTURAL PANEL SHEAR WAL
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2001 ASD Supplements - unprotected PDF - American Wood Council

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