Direct Fastening Technical Guide , Edition 24
Allowable Loads Into Minimum f ' c = 3000 psi Structural Lightweight Concrete Over 1-1 / 2 " Deep , B-Type Steel Deck 1 , 4
Fastener description |
Fastener |
Shank diameter in . ( mm ) |
Minimum embedment in . ( mm ) |
Fastener location installed through metal deck into concrete 2 , 3
Tension lb ( kN )
Shear
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|
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|
Upper flute Lower flute lb ( kN ) |
Premium concrete fastener
Universal knurled shank fastener
X-P 0.157 ( 4.0 )
X-U 0.157 ( 4.0 )
Standard fastener X-C 0.138 ( 3.5 )
Gas & Battery Fasteners
Premium Gas & Battery Fasteners
X-C G3 X-C B3 X-C B4 ( except 36- & 39-mm lengths )
X-C G2 ( except X-C 39 G2 ) X-C 36 B3 X-C 39 B4
X-P G2 X-P G3 X-P B3 X-P B4
0.118 ( 3.0 )
0.108 ( 2.75 )
3 / 4 ( 19 ) 140 ( 0.6 ) 130 ( 0.6 ) 335 ( 1.5 )
1 ( 25 ) 215 ( 1.0 ) 215 ( 1.0 ) 385 ( 1.7 ) 1-1 / 4 ( 32 ) – 270 ( 1.2 ) 465 ( 2.1 ) 3 / 4 ( 19 ) 95 ( 0.42 ) 95 ( 0.42 ) 370 ( 1.65 ) 1 ( 25 ) 125 ( 0.56 ) 125 ( 0.56 ) 415 ( 1.85 ) 3 / 4 ( 19 ) 80 ( 0.36 ) 80 ( 0.36 ) 315 ( 1.40 ) 1 ( 25 ) 205 ( 0.91 ) 205 ( 0.91 ) 445 ( 1.98 )
3 / 4 ( 19 ) 75 ( 0.3 ) 85 ( 0.38 ) 175 ( 0.8 )
1 ( 25 ) 155 ( 0.7 ) 160 ( 0.71 ) 255 ( 1.1 )
3 / 4 ( 19 ) 75 ( 0.3 ) 85 ( 0.4 ) 175 ( 0.8 )
1 ( 25 ) 5 155 ( 0.7 ) 160 ( 0.7 ) 255 ( 1.1 )
0.118 ( 3.0 ) 5 / 8 ( 16 ) 60 ( 0.27 ) 60 ( 0.3 ) 175 ( 0.8 )
1 The tabulated allowable load values are for the low-velocity fasteners only , using a safety factor that is greater than or equal to 5.0 , calculated in accordance with ICC-ES AC70 . Wood or steel members connected to the substrate must be investigated in accordance with accepted design criteria .
2 Steel deck profiles are 1-1 / 2 " deep , B-type deck with a minimum thickness of 20 gauge ( 0.0358 " thick steel ). Fasteners may be installed through the metal deck into lightweight concrete having both nominal and inverted deck profile orientations with a minimum lower flute width of 1-3 / 4 " or 3-1 / 2 ", respectively . Fasteners shall be placed at centerline of deck flutes . Refer to Figures 2 and 3 ( Section 3.2.1.6 ) for additional flute dimensions , fastener locations , and load orientations for both deck profiles . 3 Structural lightweight concrete fill above top of metal deck shall be a minimum 2-1 / 2 " deep , unless noted otherwise . 4 Multiple fasteners are recommended for any attachment . 5 Structural lightweight concrete fill above top of metal deck shall be a minimum of 3 1 / 4 " deep .
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