Page 45 - ZSi-Foster-Engineering-Catalog
P. 45

W300 Channel Loads 12 Gauge - 15⁄8" x 13⁄8" (41mm x 35mm)
Section Properties
W300 - 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)
  W300
   1.73
  0.508
   0.123
   0.158
   0.491
   0.208
   0.256
   0.64
  (2.57)
   (3.28)
  (5.12)
  (2.59)
  (1.25)
  (8.66)
  (4.20)
  (1.63)
    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
 2,650
 0.02
 2,650
  2,650
  2,650
  24
 1,320
 0.07
 1,320
  1,320
  1,320
  36
 880
 0.15
 880
  880
  600
  48
 660
 0.26
 660
  500
  340
  60
 530
 0.41
 430
  320
  210
  72
 440
 0.59
 300
  220
  150
  84
 380
 0.81
 220
  160
  110
  96
 330
 1.05
 170
  130
  80
  108
  290
  1.31
  130
   100
   70
  120
   260
 1.62
   110
  80
  50
   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
 12.0
 0.40
 12.0
  12.0
  12.0
  600
 6.0
 1.63
 6.0
  6.0
  6.0
  900
 4.0
 3.66
 4.0
  4.0
  2.8
  1,200
 3.0
 6.46
 3.0
  2.3
  1.6
  1,500
 2.4
 10.16
 2.0
  1.5
  1.0
  1,800
 2.0
 14.63
 1.4
  1.0
  0.7
  2,100
 1.7
 19.62
 1.0
  0.8
  0.5
  2,400
 1.5
 26.21
 0.8
  0.6
  0.4
  2,700
  1.3
  32.92
  0.6
   0.4
   0.3
  3,000
   1.2
 40.65
   0.5
  0.4
  0.3
   W300 - 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
 3,480
 11,260
  10,980
  10,550
  10,080
   24
 3,260
 9,830
  9,100
  8,150
  7,280
   36
 2,980
 8,260
  7,280
  6,180
  5,280
   48
 2,640
 6,890
  5,860
  4,760
  3,890
   60
 2,340
 5,780
  4,760
  3,720
  3,010
   72
 2,080
 4,880
  3,890
  3,010
  2,330
   84
 1,860
 4,130
  3,270
  2,470
  **
   96
 1,680
 3,550
  2,790
  1,890
  **
   108
  1,480
  3,110
   2,330
   **
   **
   120
 1,280
   2,740
  1,890
  **
  **
   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
 15.5
 50.1
  48.9
  47.1
  45.0
   600
 14.5
 43.9
  40.7
  36.6
  32.7
   900
 13.3
 37.1
  32.7
  27.8
  23.8
  1,200
 11.8
 31.0
  26.4
  21.5
  17.6
  1,500
 10.5
 26.1
  21.5
  16.8
  13.7
  1,800
 9.3
 22.1
  17.6
  13.7
  10.7
  2,100
 8.4
 18.7
  14.8
  11.3
  **
  2,400
 7.6
 16.1
  12.6
  8.7
  **
  2,700
 6.8
  14.1
   10.7
   **
   **
  3,000
5.8
   12.4
  8.7
  **
  **
   ** 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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