Page 53 - ZSi-Foster-Engineering-Catalog
P. 53

W900 Channel Loads 12 Gauge - 15⁄8" x 7⁄8" (41mm x 23mm)
Section Properties
W900 - Allowable Beam Loads
   Channel Part No.
   Wt./Ft. Lbs. (Kg/M)
    Area of Section Sq. in. (Sq. cm)
   X-X Axis
 Y-Y Axis
 lx in.4
(lx cm4)
  Sx in.3
(Sx cm3)
  rx. in.
(rx. cm)
  ly in.4
(ly cm4)
  Sy in.3
(Sy cm3)
  ry in.
(ry cm)
  W900
   1.37
  0.403
   0.038
   0.074
   0.307
   0.147
   0.181
   0.604
  (2.04)
   (2.60)
  (1.58)
  (1.21)
  (0.78)
  (6.12)
  (2.97)
  (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
  12
 1,250
 0.03
 1,250
 1,250
  1,250
  18
 830
 0.06
 830
 830
  740
  24
 620
 0.10
 620
 620
  420
  30
 500
 0.16
 500
 400
  270
  36
 420
 0.23
 370
 280
  180
  42
 360
 0.31
 270
 200
  140
  48
 310
 0.40
 210
 160
  100
  60
 250
 0.63
 130
 100
  70
  72
  210
  0.91
  90
  70
   50
  84
   180
 1.24
  70
   50
  30
   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
  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
   12
 2,560
 8,900
  8,670
  8,360
  8,040
   18
 2,500
 8,400
  8,040
  7,580
  6,980
   24
 2,440
 7,880
  7,430
  6,510
  5,530
   30
 2,330
 7,380
  6,510
  5,280
  4,100
   36
 2,190
 6,620
  5,530
  4,100
  2,890
   42
 2,020
 5,840
  4,560
  3,050
  2,120
   48
 1,820
 5,040
  3,650
  2,340
  1,620
   60
 1,420
 3,540
  2,340
  1,500
  **
   72
  1,110
  2,460
   1,620
   **
   **
   84
 **
   1,810
  **
  **
  **
   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
   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
   **
   **
   2,100
 **
   8.3
  **
  **
  **
   ** 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
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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