1996 LRFD Supplements - unprotected PDF - American Wood Council

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<strong>LRFD</strong> STRUCTURAL LUMBER SUPPLEMENT37MEMBERSELECTIONTABLES55.1 General 385.2 Selection Table Checklists 385.3 Selection Tables 39Table 5.1 Tension Member Selection Tables, StructuralLumber ................................................................... 40Table 5.2 Stud Wall Selection Table, StructuralLumber ................................................................... 41Table 5.3 Column Selection Tables, Timbers ....................... 42Table 5.4 Bending Member (Joist) Selection Tables,Structural Lumber ................................................ 45Table 5.5 Bending Member (Beam) Selection Tables,Timbers ................................................................... 46Table 5.6 Combined Loading Stud Wall Selection Tables,Structural Lumber ................................................ 48
38 MEMBER SELECTION TABLES5.1 GeneralMember selection tables provide factored resistancevalues that include all factors needed for many commondesigns. Before using the selection tables, please refer tothe checklists to be certain that the tabulated values areappropriate for your application.The tables in this chapter provide factored referenceresistance values for structural lumber and timber. Factoredmoment resistance, λφ b M′, factored shear resistance,λφ v V′,and bending stiffness, EI, are provided for strongaxis bending. Factored tension resistance, λφ t T′ and factoredcompression resistance, λφ c P′ are also tabulated.Note that AF&PA/ASCE 16-95 uses E 05 as the modulusof elasticity value for several stability-related equations.In this supplement, E 05 values are tabulated basedon assumptions similar to those used in allowable stressdesign (i.e., normal distributions and coefficients of variationof 0.25, 0.15 and 0.11 for visually graded, MEL andMSR lumber, respectively).5.2 Selection Table ChecklistsChecklist for all member types:The selection tables provide values for factored resistance for common species, grades and sizes of members.The tabulated values apply to members that satisfy the following conditions:√ “dry” service conditions (C M = 1.0)√ “normal” temperature range (C t = 1.0)√ untreated material (C pt = 1.0; C rt = 1.0)√ time effect factor based on “live” (L or L r ) or “snow” (S) combination (λ = 0.80)In addition, the beam and joist selection tables require the following check:√ fully laterally supported (C L = 1.0)The column selection tables require the following check:√ end conditions pin-pinIf the answer to any of these questions is NO, the selection tables should NOT be used directly. Forthese cases the designer should refer to the flowchart (Chapter 1) and follow the procedures for manualcalculation of structural lumber strength.
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
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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: 36 DESIGN ADJUSTMENT FACTORSTable 4
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
Page 77 and 78: 72 APPENDIXAppendix: Example of Sel
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Page 81 and 82: 76APPENDIX
Page 83 and 84: SUPPLEMENTStructural GluedLaminated
Page 85 and 86: TABLE OF CONTENTSChapter/Title Page
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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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TABLE OF CONTENTSChapter/TitlePage4
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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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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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