Cut Sheet
**Where the slenderness ratio KL exceeds 200, and K = end fixity factor, L = actual length and r = radius of gyration.
r
Beam Loading
Column 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. 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.
Reference page 15 for general fitting and standard finish specifications.
Channel & Combinations
B52 Beam & Column Loading Data
34
Strut Systems
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
12
(305)
B52 1079 (4.80) .026 (.66) 1079 (4.80) 1079 (4.80)
B52A 1270* (5.65) .006 (.15) 1270* (5.65) 1270* (5.65)
24
(609)
B52 539 (2.40) .106 (2.69) 506 (2.25) 337 (1.50)
B52A 1270* (5.65) .052 (1.32) 1270* (5.65) 1270* (5.65)
36
(914)
B52 360 (1.60) .240 (6.09) 225 (1.00) 150 (0.67)
B52A 1013 (4.50) .141 (3.58) 1013 (4.50) 719 (3.20)
48
(1219)
B52 270 (1.20) .427 (10.84) 126 (0.56) 84 (0.37)
B52A 759 (3.37) .250 (6.35) 607 (2.70) 404 (1.80)
60
(1524)
B52 216 (0.96) .667 (16.94) 81 (0.36) 54 (0.24)
B52A 608 (2.70) .391 (9.93) 388 (1.72) 259 (1.15)
72
(1829)
B52 180 (0.80) .960 (24.38) 56 (0.25) 37 (0.16)
B52A 506 (.225) .563 (14.30) 270 (1.20) 180 (0.80)
84
(2133)
B52 154 (0.68) 1.307 (33.20) 41 (0.18) 28 (0.12)
B52A 434 (1.93) .766 (19.45) 198 (0.88) 132 (0.59)
96
(2438)
B52 135 (0.60) 1.707 (43.36) 32 (0.14) 21 (0.93)
B52A 380 (1.69) 1.001 (25.42) 152 (0.67) 101 (0.45)
108
(2743)
B52 120 (0.53) 2.160 (54.86) 25 (0.11) 17 (0.75)
B52A 338 (1.50) 1.267 (32.18) 120 (0.53) 80 (0.35)
120
(3048)
B52 108 (0.48) 2.667 (67.74) 20 (0.89) 13 (0.58)
B52A 304 (.135) 1.564 (39.72) 97 (0.43) 65 (0.29)
Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Channel Loaded@ Loaded@
Height Style C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kN
12
(305)
B52 8407 (37.36) 3162 (14.06) 8543 (38.00) 8205 (36.50) 7989 (35.54)
B52A 19160 (85.23) 5290 (23.53) 19425 (86.41) 18777 (83.52) 18363 (81.68)
24
(609)
B52 7519 (33.44) 2755 (12.25) 7879 (35.05) 6521 (29.01) 5397 (24.01)
B52A 17444 (77.59) 4955 (22.04) 18144 (80.71) 16412 (73.00) 15275 (67.94)
36
(914)
B52 5397 (24.01) 2152 (9.57) 6653 (29.59) 3616 (16.08) 2511 (11.17)
B52A 15275 (67.94) 4496 (20.00) 16547 (73.60) 13376 (59.50) 11243 (50.01)
48 (1219)
B52 3178 (14.13) 1560 (6.94) 4785 (21.28) 2034 (9.05) 1412** (6.28)
B52A 12692 (56.46) 3963 (17.63) 14667 (65.24) 9683 (43.07) 6780 (30.16)
60
(1524)
B52 2034 (9.05) 1159 (5.15) 3081 (13.70) 1302** (5.79) 904** (4.02)
B52A 9683 (43.07) 3383 (15.05) 12516 (55.67) 6248 (27.79) 4339 (19.30)
72
(1829)
B52 1412** (6.28) 891 (3.96) 2139 (9.51) 904** (4.02) – –
B52A 6780 (30.16) 2799 (12.45) 10084 (44.85) 4339 (19.30) 3013 (13.42)
84
(2133)
B52 1038** (4.62) 704 (3.13) 1572 (6.99) 664** (2.95) – –
B52A 4981 (22.15) 2337 (10.39) 7545 (33.56) 3188 (14.18) 2214** (9.85)
96
(2438)
B52 794** (3.53) 570 (2.53) 1203** (5.35) – – – –
B52A 3814 (16.96) 1973 (8.77) 5777 (25.70) 2441** (10.86) 1695** (7.54)
108
(2743)
B52 - - 470 (2.09) 951** (4.23) – – – –
B52A 3013 (13.40) 1684 (7.49) 4564 (20.30) 1928** (8.57) 1339** (5.95)
120
(3048)
B52 - - 394 (1.75) 770** (3.42) – – – –
B52A 2441** (10.86) 1452 (6.46) 3697 (16.44) 1562** (6.95) – –