Secondary framing – Metal Sales Secondary Framing User Manual
Page 46
PSF-46
Secondary Framing
© Metal Sales Manufacturing Corporation/ Subject to change without notice/ Effective Date 9/11
800.406.7387 (Corporate Office) • www.metalsales.us.com
a
lloWable
u
niform
l
oads
in
P
ounds
Per
l
inear
f
ooT
Load TaBLeS For STandard ZeeS
(Symmetrical Flanges Only)
3'-6" Lap
Flange
Web
Flange
Max Lap
Notes:
1. Tabulated values are allowable superimposed loads. Purlin and all other load weights have not been subtracted from them.
2. Allowable loads have been calculated in accordance with 2001 AISI Specifications.
3. Bearing must be checked using actual bearing length and loads.
4. Wind loads can be obtained by multiplying tabulated values by 1.33.
5. Tabulated values are valid only if the compression flange of the section is adequately supported laterally.
Span in
Feet
Section
Max Lap - 2 Spans
Z-
12" x 3"
Stress
Controlling, plf
12 Ga
14 Ga
12 Ga
14 Ga
Defl. (L/180)
Controlling, plf
20 170
410 200
520
Max Lap - 3 Spans
Stress
Controlling, plf
Defl. (L/180)
Controlling, plf
12 Ga
14 Ga
12 Ga
14 Ga
22 143
335 175
430
24 123
280 150
350
25 114
255 140
325
26 105
235 131
300
28 93
202
115
260
30 81 194 100
220