ASD/LRFD Manual - American Wood Council

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ASD/LRFD Manual for Engineered Wood Construction 91 M13: TIMBER RIVETS M13.1 General 92 M13.2 Reference Design Values 92 M13.3 Placement of Timber Rivets 92 13 American Forest & paper association
92 M13: TIMBER RIVETS M13.1 General This Chapter covers design for timber rivets. Timber rivets are hardened steel nails that are driven through predrilled holes in steel side plates (typically 1/4" thickness) to form an integrated connection where the plate and rivets work together to transfer load to the wood member. M13.2 Reference Design Values Reference wood capacity design values parallel to grain, P w , are tabulated in the timber rivet Tables 13.2.1A through 13.2.1F in the NDS. Reference design values perpendicular to grain are calculated per NDS 13.2.2. for the connection. NDS Table 10.3-1 lists all applicable adjustment factors for timber rivets. Table M13.2-1 shows the applicability of adjustment factors for timber rivets in a slightly different format for the designer. Design Adjustment Factors Connections must be designed by applying all applicable adjustment factors to the reference lateral design value Table M13.2-1 Applicability of Adjustment Factors for Timber Rivets 1 Timber Rivets Allowable Stress Design Load and Resistance Factor Design P′ = P C D C M C t C st P′ = P C M C t C st K F φ z λ Q′ = Q C D C M C t C ∆ Q′ = Q C M C t C ∆ K F φ z λ 1. See NDS Table 10.3.1 footnotes for additional guidance on application of adjustment factors for timber rivets. For a timber rivet connection installed in side grain perpendicular to the length of the wood members, with metal side plates 1/4" or greater, used in a normal building environment (meeting the reference conditions of NDS 2.3 and 10.3), and where wood capacity perpendicular to grain, Q w , does not control, the general equations for P′ and Q′ reduce to: for ASD: P′ = P C D Q′ = Q C D for LRFD: P′ = P K F φ z λ Q′ = Q K F φ z λ M13.3 Placement of Timber Rivets Installation Requirements To achieve stated design values, connectors must comply with installation requirements such as spacing of connectors, minimum edge and end distances per NDS 13.3; and drilling of lead holes, minimum fastener penetration, and other fabrication requirements per NDS 13.1.2. American Wood Council
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2005 EDITION ASD/LRFD MANUAL MANUAL
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Updates and Errata While every prec
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ii ASD/LRFD MANUAL FOR ENGINEERED W
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iv ASD/LRFD MANUAL FOR ENGINEERED W
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viii ASD/LRFD MANUAL FOR ENGINEERED
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ASD/LRFD MANUAL FOR ENGINEERED Wood
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M1: general requirements for struct
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M2: DESIGN VALUES FOR STRUCTURAL ME
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M3: Design Provisions and Equations
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M3: Design Provisions and Equations
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10 M3: Design Provisions and Equati
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12 M4: SAWN LUMBER M4.1 General Pro
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14 M4: SAWN LUMBER M4.4 Special Des
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16 M4: SAWN LUMBER Table M4.4-3 Coe
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18 M4: SAWN LUMBER Table M4.5-1a AS
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20 M4: SAWN LUMBER Table M4.5-2b AS
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22 M4: SAWN LUMBER Table M4.5-3a AS
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24 M4: SAWN LUMBER Table M4.5-4c AS
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26 M4: SAWN LUMBER Column Capacity
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28 M5: structural glued laminated t
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34 M6: ROUND TIMBER POLES AND PILES
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36 M6: ROUND TIMBER POLES AND PILES
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38 M7: PREFABRICATED WOOD I-JOISTS
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142 M16: FIRE DESIGN type of assemb
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144 M16: FIRE DESIGN Table M16.1-10
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146 M16: FIRE DESIGN Compression Me
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156 M16: FIRE DESIGN Example 16.2-1
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158 M16: FIRE DESIGN For the fire d
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160 M16: FIRE DESIGN Figure M16.3-5
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American Forest & Paper Association
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ASD/LRFD Manual - American Wood Council

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