Direct Fastening Technical Guide , Edition 24
36 / 11 |
36 / 9 |
914 / 11 |
c |
Limit States Design ( LSD ) – Factored resistance diaphragm shears , S LSD , ( N / mm ) and stiffness factors , G ’, ( 10 3 N / mm ) for standard 38mm deep flutes , 152mm center-to-center deck ( F y
≥345 Mpa ; F u
≥450 Mpa ) installed with Hilti S-MD 12-24 x 1-5 / 8 M HWH5 fasteners with 914 / 11 ( 36 / 11 ) or 914 / 9 ( 36 / 9 ) end and interior support fastener patterns 1 , 2 , 3 , 4 , 5 , 6 , 7
Gauge
22
20
18
Number of Hilti SLC per span
2
3
4
5
6
7
2
3
4
5
6
7
2
3
4
5
6
7
6 ''
Factor
36 '' 1-1 / 2 ''
Span ( mm )
152 mm 36 ''
7141-1 mm/ 2 ''
1200 1500 1800 2100 2400 2700 3000 36 / 11
Fasteners per sheet to support 11 9 11 9 11 9 11 9 11 9 11 9 11 9
S LSD
16.3 14.2 13.5 11.8 11.4 10.0 9.6 8.5 6 '' 8.4 7.4 7.4 6.5 6.7 5.9 36 ''
1-1 / 2 '' G ' 10.9 10.6 11.6 11.2 12.0 11.5 12.1 11.5 12.0 11.3 11.8 11.0 11.5 10.7
S LSD
18.0 15.7 15.0 13.2 12.8 11.3 11.0 9.9 9.5 8.5 8.4 7.6 7.6 6.8 G ' 11.1 10.9 12.0 11.6 12.5 12.0 12.6 12.1 12.6 12.0 12.5 11.8 12.2 11.5
S LSD
19.6 17.1 16.4 14.5 14.1 12.6 12.3 11.0 10.7 9.7 9.5 8.6 8.5 7.7 G ' 11.3 11.1 12.3 12.0 12.8 12.4 13.1 12.6 13.1 12.6 13.0 12.4 12.9 12.2
S LSD
21.1 18.4 17.8 15.8 15.3 13.7 13.4 12.1 11.9 10.8 10.5 9.6 9.5 8.7 G ' 11.5 11.3 12.5 12.3 13.2 12.8 13.5 13.1 13.6 13.1 13.5 13.0 13.4 12.8
S LSD
22.4 19.5 19.1 16.9 16.5 14.8 14.5 13.1 12.9 11.7 11.6 10.6 10.4 9.6 G ' 11.6 11.5 12.7 12.5 13.4 13.1 13.8 13.5 14.0 13.6 14.0 13.5 13.9 13.4
S LSD
23.7 20.5 20.3 17.9 17.7 15.8 15.6 14.1 13.9 12.6 12.5 11.4 11.3 10.4 G ' 11.8 11.6 12.9 12.7 13.7 13.4 14.1 13.8 14.3 14.0 14.4 14.0 14.3 13.9
S LSD
23.1 20.0 19.1 16.7 16.2 14.3 13.8 12.2 12.0 10.6 10.5 9.3 9.5 8.4 G ' 15.0 14.5 15.6 14.9 15.7 14.9 15.5 14.5 15.1 14.1 14.6 13.6 14.1 13.0
S LSD
25.6 22.3 21.3 18.8 18.2 16.2 15.8 14.1 13.7 12.3 12.1 10.9 10.9 9.8 G ' 15.5 15.0 16.2 15.6 16.4 15.7 16.3 15.5 16.0 15.1 15.6 14.6 15.1 14.1
S LSD
27.9 24.4 23.5 20.8 20.1 18.0 17.6 15.8 15.5 14.0 13.7 12.4 12.3 11.2 G ' 15.8 15.5 16.7 16.2 17.0 16.4 17.0 16.3 16.8 16.0 16.4 15.5 16.0 15.1
S LSD
30.0 26.2 25.5 22.5 22.0 19.6 19.2 17.3 17.1 15.5 15.2 14.0 13.7 12.6 G ' 16.1 15.8 17.1 16.7 17.5 17.0 17.6 17.0 17.4 16.7 17.1 16.4 16.7 15.9
S LSD
32.0 27.8 27.3 24.2 23.7 21.2 20.9 18.8 18.6 16.9 16.7 15.2 15.1 13.9 G ' 16.4 16.1 17.4 17.1 18.0 17.5 18.1 17.6 18.0 17.4 17.8 17.1 17.4 16.7
S LSD
33.8 29.2 29.1 25.6 25.4 22.7 22.4 20.2 20.0 18.2 18.0 16.5 16.4 15.1 G ' 16.6 16.4 17.8 17.4 18.4 18.0 18.6 18.1 18.6 18.0 18.4 17.8 18.1 17.4
S LSD
27.0 23.5 22.4 19.7 19.1 16.9 16.5 14.7 14.3 12.8 12.6 11.3 11.3 10.1 G ' 22.9 21.8 22.7 21.5 22.1 20.7 21.2 19.7 20.3 18.7 19.3 17.7 18.3 16.7
S LSD
30.3 26.4 25.4 22.4 21.7 19.4 18.9 17.0 16.7 15.1 14.7 13.4 13.2 12.0 G ' 23.7 22.8 23.8 22.7 23.3 22.1 22.5 21.2 21.6 20.2 20.7 19.2 19.7 18.3
S LSD
33.2 29.0 28.1 24.9 24.2 21.7 21.2 19.1 18.8 17.1 16.8 15.4 15.1 13.9 G ' 24.4 23.7 24.7 23.8 24.4 23.3 23.7 22.5 22.8 21.6 21.9 20.6 21.0 19.7
S LSD
35.9 31.2 30.7 27.1 26.6 23.8 23.4 21.1 20.8 18.9 18.8 17.1 17.0 15.6 G ' 25.1 24.4 25.5 24.7 25.3 24.3 24.7 23.7 23.9 22.8 23.1 21.9 22.2 21.0
S LSD
38.2 33.0 33.0 29.1 28.8 25.8 25.5 23.0 22.8 20.7 20.5 18.8 18.7 17.2 G ' 25.6 25.0 26.2 25.5 26.1 25.3 25.6 24.7 24.9 23.9 24.1 23.1 23.3 22.2
S LSD
40.4 34.7 35.2 30.9 30.9 27.5 27.5 24.7 24.6 22.4 22.3 20.4 20.3 18.7 G ' 26.1 25.6 26.8 26.2 26.9 26.1 26.5 25.6 25.8 24.9 25.1 24.1 24.3 23.3
1 Tabulated diaphragm shear values are for attachment of steel deck to base steel thicknesses , t f , with the range 1 / 8 " ≤ t f
≤ 6 mm . 2 Tabulated LSD diaphragm shear loads are calculated with a phi factor ( Φ ) of 0.75 for wind loads . To calculate LSD values for load combinations involving earthquake , divide values in table by
0.75 and multiply by a phi factor ( Φ ) of 0.55 . Panel buckling has been checked . 3 Please refer to footnotes 3 through 7 on page 171 .
6 '' 38 mm
203