1996 LRFD Supplements - unprotected PDF - American Wood Council

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GUIDELINE<strong>LRFD</strong>TOSTRUCTURAL<strong>LRFD</strong> FOR STRUCTURALLUMBER SUPPLEMENTCOMPOSITE LUMBER 2525Table 3.3Reference Strengths for Visually Graded Timbers (5" x 5" and Larger)Design values in kips per square inch (ksi)Tension Shear Compression Compression ModulusBending parallel parallel perpendicular parallel of GradingSpecies and Size to grain to grain to grain to grain Elasticity Rulescommercial grade Classification E 05 E AgencyF b F t F v F c β F c (5th pct) (mean)WESTERN WOODSSelect Structural Beams and 2.67 1.69 0.19 0.70 1.62 670 1100No. 1 Stringers 2.29 1.22 0.19 0.70 1.38 670 1100No. 2 1.46 0.81 0.19 0.70 0.84 550 900 WWPASelect Structural Posts and 2.54 1.82 0.19 0.70 1.68 670 1100No. 1 Timbers 2.03 1.49 0.19 0.70 1.50 670 1100No. 2 0.89 0.61 0.19 0.70 0.54 550 900WHITE OAKSelect Structural Beams and 3.56 2.23 0.30 1.66 2.16 610 1000No. 1 Stringers 3.05 1.55 0.30 1.66 1.86 610 1000No. 2 1.91 1.01 0.30 1.66 1.14 490 800 NELMASelect Structural Posts and 3.30 2.36 0.30 1.66 2.28 610 1000No. 1 Timbers 2.67 1.89 0.30 1.66 1.98 610 1000No. 2 1.52 1.08 0.30 1.66 0.96 490 8003REFERENCE STRENGTHS
26 REFERENCE STRENGTHSTable 3.4Reference Bearing Design Strengths for Sawn LumberDry Service ConditionsSpecies Wet Service 5" x 5" 2" to 4"Combination Conditions 1 & Larger thickFg (ksi) Fg (ksi) Fg (ksi)ASPEN 1.78 -- 2.66BALSAM FIR 2.14 2.35 3.19BEECH-BIRCH-HICKORY 2.83 3.12 4.25COAST SITKA SPRUCE 2.28 2.50 3.41COAST SPECIES 2.28 -- 3.41COTTONWOOD 1.82 -- 2.76DOUGLAS FIR-LARCH (DENSE) 3.77 4.15 5.66DOUGLAS FIR-LARCH 3.24 3.55 4.85DOUGLAS FIR-LARCH (NORTH) 3.22 3.55 4.85DOUGLAS FIR-SOUTH 2.93 3.22 4.37EASTERN HEMLOCK 2.74 3.02 --EASTERN HEMLOCK-TAMARACK 2.76 3.05 4.15EASTERN HEMLOCK-TAMARACK (NORTH) 2.78 3.07 4.18EASTERN SOFTWOODS 2.14 -- 3.22EASTERN SPRUCE 2.33 2.57 3.50EASTERN WHITE PINE 2.16 2.38 3.26EASTERN WHITE PINE (NORTH) 2.30 -- 3.46HEM-FIR 2.66 2.93 4.01HEM-FIR (NORTH) 2.78 3.07 4.20MIXED MAPLE 2.09 2.30 3.14MIXED OAK 2.42 2.66 3.65MIXED SOUTHERN PINE 3.05 3.34 4.56MOUNTAIN HEMLOCK 2.57 2.81 --NORTHERN PINE 2.50 2.76 3.77NORTHERN RED OAK 2.76 3.05 4.15NORTHERN SPECIES 2.11 -- 3.17NORTHERN WHITE CEDAR 1.78 1.94 2.66PONDEROSA PINE 2.52 2.78 3.79RED MAPLE 2.64 2.90 3.96RED OAK 2.42 2.66 3.65RED PINE 2.11 2.33 3.17REDWOOD (CLOSE GRAIN) 3.74 4.13 5.62REDWOOD (OPEN GRAIN) 2.76 3.05 4.15SITKA SPRUCE 2.38 2.62 3.55SOUTHERN PINE (DENSE) 3.70 4.06 5.54SOUTNERN PINE 3.17 3.48 4.73SPRUCE-PINE-FIR 2.26 2.50 3.38SPRUCE-PINE-FIR (SOUTH) 1.94 2.16 2.93WESTERN CEDARS 2.54 2.81 3.82WESTERN CEDARS (NORTH) 2.50 2.74 3.74WESTERN HEMLOCK 2.98 3.26 4.46WESTERN HEMLOCK (NORTH) 2.98 3.26 4.46WESTERN WHITE PINE 2.23 2.47 3.36WESTERN WOODS 1.94 2.16 2.93WHITE OAK 2.64 2.90 3.96YELLOW POPLAR 2.14 -- 3.22Note 1. Wet service factor (C M ) has been already been applied.Note 1. Wet service factor (C M ) has already been applied.
Page 1 and 2: SUPPLEMENTStructural LumberLRFDLOAD
Page 3: PrefaceThis supplement contains adj
Page 7 and 8: 2 DESIGNER FLOWCHART1.1 FlowchartSt
Page 9 and 10: 4 INTRODUCTION TO STRUCTURAL LUMBER
Page 11 and 12: 6 REFERENCE STRENGTHS3.1 GeneralThe
Page 13 and 14: 8 REFERENCE STRENGTHSTable 3.1Refer
Page 15 and 16: 10 REFERENCE STRENGTHSTable 3.2Refe
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Page 35 and 36: 30REFERENCE STRENGTHS
Page 37 and 38: 32 DESIGN ADJUSTMENT FACTORS4.1 Gen
Page 39 and 40: 34 DESIGN ADJUSTMENT FACTORSandFgN
Page 41 and 42: 36 DESIGN ADJUSTMENT FACTORSTable 4
Page 43 and 44: 38 MEMBER SELECTION TABLES5.1 Gener
Page 47 and 48: 42 MEMBER SELECTION TABLESTable 5.3
Page 55 and 56: 50MEMBER SELECTION TABLES
Page 57 and 58: 52 OTHER CONSIDERATIONS6.1 GeneralW
Page 59 and 60: 54OTHER CONSIDERATIONS
Page 61 and 62: 56 SPAN TABLES7.1 Explanation of Ta
Page 63 and 64: 58 SPAN TABLESTable 7.2 Floor Joist
Page 65 and 66: 60 SPAN TABLESTable 7.4 Ceiling Joi
Page 67 and 68: 62 SPAN TABLESTable 7.6 Rafters 30/
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Page 71 and 72: 66SPAN TABLES
Page 73 and 74: 68 SECTION PROPERTIES8.1 Cross-Sect
Page 75 and 76: 70CROSS-SECTION PROPERTIES
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76APPENDIX
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SUPPLEMENTStructural GluedLaminated
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TABLE OF CONTENTSChapter/Title Page
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LRFD STRUCTURAL GLUED LAMINATED TIM
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LRFDGUIDELINESTRUCTURALTO LRFDGLUED
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SUPPLEMENTTimber Polesand PilesLRFD
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AMERICAN WOOD COUNCIL
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2 DESIGNER FLOWCHART1.1 FlowchartTi
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4 INTRODUCTION TO TIMBER POLES AND
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6 DESIGN ADJUSTMENT FACTORS3.1 Gene
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8 DESIGN ADJUSTMENT FACTORSTable 3.
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10 REFERENCE STRENGTHS4.1 GeneralTh
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12REFERENCE STRENGTHSAMERICAN WOOD
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14 POLE AND PILE SELECTION TABLES5.
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16 POLE AND PILE SELECTION TABLESTa
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18 POLE AND PILE SELECTION TABLESTa
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20POLE AND PILE SELECTION TABLESAME
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22 OTHER CONSIDERATIONS6.1 GeneralW
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24OTHER CONSIDERATIONSAMERICAN WOOD
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26 SECTION PROPERTIES7.1 SECTION PR
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28 SECTION PROPERTIESTable 7.4Speci
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30 SECTION PROPERTIESAMERICAN WOOD
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SUPPLEMENTStructural-UsePanelsLRFDL
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LRFD STRUCTURAL-USE PANELS SUPPLEME
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GUIDELINELRFD STRUCTURAL-USETO LRFD
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SUPPLEMENTStructuralConnectionsLRFD
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8.3D Factored Resistance Values (φ
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2 DESIGNER FLOWCHART1.1 FlowchartSt
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4 INTRODUCTION TO STRUCTURAL CONNEC
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6 DESIGN ADJUSTMENT FACTORS3.1 Gene
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8 DESIGN ADJUSTMENT FACTORSTable 3.
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10 DESIGN ADJUSTMENT FACTORSTable 3
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12 DESIGN ADJUSTMENT FACTORSTable 3
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14 FACTORED RESISTANCE VALUES4.1 Ge
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16 FACTORED RESISTANCE VALUESAMERIC
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18 FACTORED RESISTANCE VALUESTable
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62FACTORED RESISTANCE VALUESAMERICA
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64 OTHER CONSIDERATIONS5.1 GeneralW
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66 FASTENER DIMENSIONS6.1 Typical D
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68 APPENDIXSimplified Design Equati
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70 APPENDIXLimitations for Simplifi
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72 APPENDIXWood Screw ConnectionsLi
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74APPENDIXAMERICAN WOOD COUNCIL
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1996 LRFD Supplements - unprotected PDF - American Wood Council

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