Page 21 - ZSi-Foster Channel Loads for Strut
P. 21

 W211SS - 14 Gauge Channel
15⁄8" x 31⁄4" (41mm x 83mm) with 9⁄16" x 11⁄8" Short Slots on 2" centers
41mm 22mm
10 mm
X
83mm
15⁄8" 7⁄8"
3⁄8"
X
31⁄4"
Y
Y
Wt.. Area of Lbs./ Section Ft. in.2
(Kg/M) (cm2)
2 .84 0 .834
(4.23) (5.38)
X-X Axis Sx in.3
(cm3)
0 .455
(7.46)
Y-Y Axis Sy in.3
(cm3)
0 .450
(7.37)
Load Load /180 /240 /360 Reduction In Lbs In Lbs Lbs Lbs
12 1,440 * 24 1,440 * 36 1,440 * 48 1,440 * 60 1,377 72 1,143 84 981
96 855 108 765 120 684
0 .00 1,440
0 .01 1,440
0 .04 1,440
0 .11 1,440
0 .20 1,377
0 .28 1,143
0 .39 981 891 594 0 .81 0 .50 855 684 450 0 .76 0 .64 720 540 360 0 .70 0 .78 585 432 288 0 .64
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
Unbraced Max. Max. Column Load Applied at C.G.
* * * *
1,440 * 1,440 * 1,440 * 1,440 * 1,377 1,143
1,440 * 1 .00 1,440 * 1 .00 1,440 * 1 .00 1,440 * 0 .98 1,161 0 .93
300 6.4 600 6.4 900 6.4
1,200 6.4 1,500 6.2 1,800 5.2 2,100 4.4 2,400 3.9 2,700 3.4 3,000 3.1
* * * *
0.04 6.4 0.32 6.4 1.08 6.4 2.56 6.4 4.84 6.2 6.96 5.2 9.51 4.4 12.41 3.9 15.66 3.3 19.49 2.7
* * * *
6.4 * 6.4 * 6.4 * 6.4 * 6.2
5.2 4.1 3.1 2.5 2.0
6.4 * 1.00 6.4 * 1.00 6.4 * 1.00 6.4 * 0.98
In Lbs Lbs Lbs Lbs Lbs
mm kN kN kN kN kN
12 5140 24 5040 36 4890 48 4720 60 4500 72 4230 84 3890 96 3490
19130
18230
16970
15590
14260
13080
12080
11150
18970
17670
16010
14360
12920
11740
10210
 8380
 6690
 5420
18700 18390 16860 16010 14760 13610 12920 11740 11480 9280 9280 6690 7080 4920 5420 3770 4280 2980
3470 KL/r >200
300 22.9 600 22.4 900 21.8
1,200 21.1 1,500 20.1 1,800 18.9 2,100 17.5 2,400 15.7 2,700 13.9 3,000 12.2
85.1 84.4 81.2 78.8 75.8 71.6 69.7 64.3 63.9 57.9 58.7 52.7 54.2 46.3 50.4 38.3 43.8 30.7 37.3 24.9
83.3 82.0 75.3 71.6 66.1 61.0 57.9 52.7 51.5 42.2 42.2 30.7 32.5 22.6 24.9 17.3 19.7 13.7 15.9 KL/r >200
108 3060 9620 120 2690 8160
W211SS - Allowable Beam Loads
Uniform Load at Deflection Lateral Max. Defl.
Span Uniform at Span Span Span Bracing Span Uniform at Span Span Span Bracing
Max.
Defl.
Lateral Reduction
810 0 .87
5.3 3.7 2.7 2.1 1.6 1.3
0.93 0.88 0.82 0.76 0.71 0.65
W211SS - Allowable Column Loads
* Load limited by spot weld shear
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 3 - 6 for other beam support conditions.
ZSi-Foster Channel Load Data zsi-foster.com – 21 –
Height
Slot Face K = 0.65 K = 0.80 K = 1.0 K = 1.2 Load
W211SS Section Properties
lx in.4
(cm4)
0 .739
(30.76)
rx. in.
(cm)
0 .942
(2.39)
ly in.4
(m4)
0 .365
(15.19)
ry in.
(cm)
0 .662
(1.68)
Uniform Load at Deflection Load Load /180 /240 /360
mm kN mm kN kN kN
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