Page 53 - ZSi-Foster Engineering Catalog - Electronic Version 2
P. 53

   Channel Part No.
  Wt./Ft. Lbs. (Kg/M)
  Area of Section Sq. in. (Sq. cm)
  X-X Axis
 Y-Y Axis
 4 (lx cm4)
lx in.
  3 (Sx cm3)
Sx in.
  rx. in. (rx. cm)
  4 (ly cm4)
ly in.
  3 (Sy cm3)
Sy in.
  ry in. (ry cm)
  W900
W900 Channel Loads 12 Gauge - 15⁄8" x 7⁄8" (41mm x 22mm)
Section Properties
1.37 0.403 0.038 0.074 0.307 0.147 0.181
(2.04) (2.60) (1.58) (1.21) (0.78) (6.12) (2.97)
W900 - Allowable Beam Loads
0.604
(1.53)
   Span
 Max. Uniform Load
(W)
 Deflection at Load (W)
 Uniform Load at Deflection
 Span /180
 Span /240
 Span /360
 In
  Lbs
  In
  Lbs
  Lbs
  Lbs
  Span
 Max. Uniform Load (W)
 Deflection at Load (W)
 Uniform Load at Deflection
 Span /180
 Span /240
 Span /360
 mm
  kN
  mm
  kN
  kN
  kN
   12 1,250 0.03
18 830 0.06
24 620 0.10
30 500 0.16
36 420 0.23
42 360 0.31
48 310 0.40
60 250 0.63
72 210 0.91
84 180 1.24
12 2,560 8,900
18 2,500 8,400
24 2,440 7,880
30 2,330 7,380
36 2,190 6,620
42 2,020 5,840
48 1,820 5,040
60 1,420 3,540
72 1,110 2,460
84 ** 1,810
1,250 1,250 1,250
830 830 740
620 620 420
500 400 270
370 280 180
270 200 140
210 160 100
130 100 70
90 70 50
70 50 30
300 5.6 0.62 5.6 5.6 5.6
450 3.7 1.38 3.7 3.7 3.4
600 2.8 2.45 2.8 2.8 1.9
750 2.3 3.87 2.3 1.8 1.2
900 1.9 5.51 1.7 1.3 0.8
1,050 1.6 7.50 1.2 0.9 0.6
1,200 1.4 9.96 0.9 0.7 0.5
1,500 1.1 15.19 0.6 0.4 0.3
1,800 0.9 22.05 0.4 0.3 0.2
2,100 0.8 30.01 0.3 0.2 0.1
                          W900 - Allowable Column Loads
 Unbraced Height
 Max. Slot Face Load
 Max. Column Load Applied at C.G.
 K = 0.65
 K = 0.80
 K = 1.0
 K = 1.2
 In
  Lbs
  Lbs
  Lbs
  Lbs
  Lbs
  Unbraced Height
 Max. Slot Face Load
 Max. Column Load Applied at C.G.
 K = 0.65
 K = 0.80
 K = 1.0
 K = 1.2
 mm
  kN
  kN
  kN
  kN
  kN
   8,670 8,360
8,040 7,580
7,430 6,510
6,510 5,280
5,530 4,100
4,560 3,050
3,650 2,340
2,340 1,500
1,620 **
8,040
6,980
5,530
4,100
2,890
2,120
1,620
**
**
300 11.4 39.6 38.7 37.3 35.9
450 11.1 37.5 35.9 33.9 31.3
600 10.9 35.2 33.2 29.3 25.0
750 10.4 33.1 29.3 23.9 18.7
900 9.8 29.8 25.0 18.7 13.3
1,050 9.1 26.3 20.8 14.0 9.7
1,200 8.2 22.9 16.8 10.7 7.5
1,500 6.4 16.3 10.7 6.9 **
                1,800 5.1
11.3 7.5 ** **
  ** KL ⁄ r > 200
NR = Not Recommended
Beam loads shown are total uniform load, including the channel weight,
for a simple span supported at each end that is adequately laterally
braced.
Refer to pages 20 -23 for other beam support conditions.
Refer to page 77 for load reduction factor for an unbraced beam length.
ZSi-Foster Engineering Catalog
– 53 –
** ** **
2,100 ** 8.3 ** ** **
Beam Loading of Punched Channels
Load for punched channel is obtained by multiplying the loads shown by the following reduction factors:
SS - Channel with Short Slots. . . . . . . . . . . . . . 0.90 SL - Channel with Long Slots . . . . . . . . . . . . . . 0.90 H - Channel with Holes . . . . . . . . . . . . . . . . . . . 0.95 KO - Knock-Out Channel. . . . . . . . . . . . . . . . . . 0.95
   WARNING: These products can expose you to chemicals including lead, which is known to the State of California to cause cancer, and which is known to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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