2001 ASD Supplements - unprotected PDF - American Wood Council

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PP-28SECTION PROPERTIES7.1 Section Properties7.1.1 Pole DimensionsPole sizes are standardized by ASTM D3200. Standardizedsizes are independent of species. For a given pole,minimum circumference at the tip is specified along withminimum circumference 3 ft. from the butt, the latter beinga function of pole length. These specified dimensions(Table 7.1) with assumed linear taper shall be used in designcomputations associated with NDS.7.1.2 Pile DimensionsPile dimensions are specified either by minimum tipcircumference or by minimum butt circumference. Thesedimensions are specified by ASTM D25 as a function ofpile length, species, and class. These dimensions (Tables7.2 through 7.6) with assumed linear taper or the actualmeasured dimensions shall be used in computations associatedwith NDS.Table 7.2 provides the specified tip circumferenceswith corresponding minimum butt circumferences, andTable 7.3 gives the specified butt circumferences with correspondingminimum tip circumferences for Southern Pinepiles. Tables 7.4 and 7.5 provide similar minimum circumferencesfor piles of Pacific Coast Douglas-Fir andother species, except Southern Pine. Note that the buttcircumference is specified at 3 ft. from the butt.Pacific Coast Douglas-Fir piles may be specified intoClass A and Class B. This classification depends on theminimum pile circumferences given in Table 7.6. The designershould inquire as to the availability of Class A andB sizes, which generally represent larger circumferencesthan the minimums specified in Table 7.6.Table 7.1Specified Tip Circumferences with Corresponding Minimum ButtCircumferences for Poles Graded to (ASTM D3200)Minimum Tip Circumference (in.)16 19 22 25 28 31 35 38Length (ft.)Minimum Circumference 3 feet from butt (in.)10 18.5 21.5 24.5 27.5 30.5 33.5 37.5 40.515 19.8 22.8 25.8 28.8 31.8 34.8 38.8 41.820 22.0 24.0 27.0 30.0 33.0 36.0 40.0 43.025 22.2 25.2 28.2 31.2 34.2 37.2 41.2 44.230 23.5 26.5 29.5 32.5 35.5 38.5 42.5 45.535 24.8 27.8 30.8 33.8 36.8 39.8 43.8 46.840 26.0 29.0 32.0 35.0 38.0 41.0 45.0 48.0AMERICAN WOOD COUNCIL
<strong>ASD</strong> TIMBER POLES AND PILES SUPPLEMENTPP-29Table 7.2Specified Tip Circumferences with Corresponding Minimum ButtCircumferences for Southern Pine Piles 1 (ASTM D25)Minimum Tip Circumference (in.)16 19 22 25 28 31 35 38Length (ft.)Minimum Circumference 3 feet from butt (in.)20 19 22 25 28 31 34 38 4125 20 23 26 29 32 35 39 4230 21 24 27 30 33 36 40 4335 22 25 28 31 34 37 41 4440 26 29 32 35 38 42 4545 27 30 33 36 39 43 4650 31 34 37 40 44 4755 32 35 38 41 45 4860 33 36 39 42 46 4965 34 37 40 43 47 5070 35 38 41 44 48 5175 36 39 42 45 49 5280 37 40 43 46 50 5385 38 41 44 47 51 5490 39 42 45 48 52 551. Piles purchased as “8 in. and natural taper” have a required minimum tip circumference of 25 in. and are available in lengths of 20 to 45 ft.7Table 7.3Specified Butt Circumferences with Corresponding Minimum TipCircumferences for Southern Pine Piles 1,2,3 (ASTM D25)Minimum Circumference 3 feet from butt (in.)22 25 28 31 35 38 41 44 47 50 57Length (ft.)Minimum Tip Circumference (in.)20 16 16 18 21 25 28 31 34 37 40 4725 16 16 17 20 24 27 30 33 36 39 4630 16 16 16 19 23 26 29 32 35 38 4535 18 22 25 28 31 34 37 4440 17 21 24 27 30 33 36 4345 20 23 26 29 32 35 4250 19 22 25 28 31 34 4155 21 24 27 30 33 4060 20 23 26 29 32 3965 19 22 25 28 31 3870 18 21 24 27 30 3775 20 23 26 29 3680 19 22 25 28 3585 18 21 24 27 341. Where the taper applied to the butt circumference calculates to a tip circumference of less than 16 in., corresponding values have been increased to 16 in. toassure a minimum 5 in. diameter tip for purposes of driving.SECTION PROPERTIES2. Class A piles are all those listed with a specified required minimum circumference of 44 in. at 3 ft. from butt.3. Class B piles are those listed with a specified required minimum circumference at 3 ft. from butt of 35 in. and lengths of 20 to 25 ft. minimum circumference at 3 ft.from butt of 38 in. and lengths of 20 to 50 ft. and minimum circumference at 3 ft. from butt of 41 in. and lengths of 55 to 80 ft.AMERICAN FOREST & PAPER 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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SUPPLEMENTWood StructuralPanel Shea
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ASD WOOD STRUCTURAL WOOD PANEL FRAM
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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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