Cut Sheet

B11
• Thickness: 12 Gauge (2.6 mm)
• Standard lengths: 10’ (3.05 m) & 20’ (6.09 m)
• Standard finishes: Plain, DURA GREEN
™
,
Pre-Galvanized, Hot-Dipped Galvanized,
Aluminum
• Weight: 3.05 Lbs./Ft. (4.54 kg/m)
1
5
/8”
(41.3)
3
1
/4”
(82.5)
13
/16”
(20.5)
1.5190
(38.6)
3
/8”
(9.5)
3
/8”
(9.5)
9
/32”
(7.1)
7
/8”
(22.2)
X
Y
Y
X
Reference page 15 for general fitting and standard finish specifications.
Channel & Combinations
Beam Loading
Based on simple beam condition using an allowable design stress of 25,000 psi (172 MPa) in accordance with MFMA, with adequate lateral
bracing (see page 12 for further explanation). Actual yield point of cold rolled steel is 42,000 psi (289 MPa). To determine concentrated load
capacity at mid span, multiply uniform load by 0.5 and corresponding deflection by 0.8. *Failure determined by weld shear.
B11 Channel, Combinations & Load Data
Strut Systems
17
Areas of Momentof Section Radius of Moment of Section Radius of
Channel Weight Section Inertia (I) Modulus (S) Gyration (r) Inertia (I) Modulus (S) Gyration (r)
lbs./ft. kg/m sq. in. cm
2
in.
4
cm
4
in.
3
cm
3
in. cm in.
4
cm
4
in.
3
cm
3
in. cm
B11 3.059 (4.55) .900 (5.81) 1.1203(46.63) .6472 (10.61) 1.116 (2.83) .4357 (18.14) .5362 (8.79) .696 (1.77)
B11A 6.119 (9.11) 1.800(11.61) 6.3931(266.10) 1.9671 (32.24) 1.885 (4.79) .8714 (36.27) 1.0725(17.58) .696 (1.77)
X - X Axis Y - Y Axis
Calculations of section properties are based on metal thicknesses as determined by the AISI Cold-Formed Steel Design Manual.
Section Properties
Uniform Load @ Deflection =
Beam Span Channel Uniform Load and Deflection 1/240 Span 1/360 Span
In. mm
Style
Lbs. kN In. mm Lbs. kN Lbs. kN
24
(609)
B11 5130 (22.82) .029 (.73) 5130 (22.82) 5130 (22.82)
B11A 5130* (22.82) .005 (.13) 5130* (22.82) 5130* (22.82)
36
(914)
B11 3488 (15.51) .065 (1.65) 3488 (15.51) 3488 (15.51)
B11A 5130* (22.82) .017 (.43) 5130* (22.82) 5130* (22.82)
48
(1219)
B11 2616 (11.63) .117 (2.97) 2616 (11.63) 2616 (11.63)
B11A 5130* (22.82) .040 (1.01) 5130* (22.82) 5130* (22.82)
60
(1524)
B11 2093 (9.31) .183 (4.65) 2093 (9.31) 1908 (8.49)
B11A 5130* (22.82) .079 (2.00) 5130* (22.82) 5130* (22.82)
72
(1829)
B11 1744 (7.76) .263 (6.68) 1744 (7.76) 1325 (5.89)
B11A 5130* (22.82) .136 (3.45) 5130* (22.82) 5130* (22.82)
84
(2133)
B11 1495 (6.65) .358 (9.09) 1460 (6.49) 974 (4.33)
B11A 4552 (20.25) .191 (4.85) 4552 (20.25) 4552 (20.25)
96
(2438)
B11 1308 (5.82) .468 (11.89) 1118 (4.97) 745 (3.31)
B11A 3983 (17.72) .250 (6.35) 3983 (17.72) 3983 (17.72)
108
(2743)
B11 1163 (5.17) .592 (15.03) 884 (3.93) 589 (2.62)
B11A 3541 (15.75) .317 (8.05) 3541 (15.75) 3353 (14.91)
120
(3048)
B11 1046 (4.65) .731 (18.57) 716 (3.18) 477 (2.12)
B11A 3187 (14.17) .391 (9.93) 3187 (14.17) 2716 (12.08)
144
(3657)
B11 872 (3.88) 1.053 (26.74) 497 (2.21) 331 (1.47)
B11A 2656 (11.81) .563 (14.30) 2656 (11.81) 1886 (8.39)
168
(4267)
B11 747 (3.32) 1.433 (36.40) 365 (1.62) 243 (1.08)
B11A 2276 (10.12) .766 (19.45) 2078 (9.24) 1386 (6.16)
192
(4877)
B11 654 (2.91) 1.871 (47.52) 280 (1.24) 186 (0.83)
B11A 1992 (8.86) 1.001 (25.42) 1591 (7.08) 1061 (4.72)
216
(5486)
B11 581 (2.58) 2.368 (60.15) 221 (0.98) 147 (0.65)
B11A 1770 (7.87) 1.267 (32.18) 1257 (5.59) 838 (3.73)
240
(6096)
B11 523 (2.32) 2.924 (74.27) 179 (0.79) 119 (0.53)
B11A 1593 (7.08) 1.564 (39.72) 1018 (4.53) 679 (3.02)
Note:
Aluminum loading, for B11, can be determined
by multiplying load data times a factor of 0.38