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Secondary framing – Metal Sales Secondary Framing User Manual

Page 43

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PSF-43

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

26 86 142 110

180 168

Span in

Feet

Section

Max Lap - 2 Spans

Z-

8" x 3

1

/

2

"

Stress

Controlling, plf

12 Ga

14 Ga

12 Ga

14 Ga

Defl. (L/180)

Controlling, plf

16 250

448 300

480

Max Lap - 3 Spans

Stress

Controlling, plf

Defl. (L/180)

Controlling, plf

12 Ga

14 Ga

12 Ga

14 Ga

18 194

337 240

380

20 154

260 193

300

22 124

210 158

250

24 102

170 130

212

25 94 155 120

194 190

28 74 120

93 152 90 135

30 63 102

81 130 73 110

28 80 142 102

180 162

Span in

Feet

Section

Max Lap - 2 Spans

Z-

9" x 3"

Stress

Controlling, plf

12 Ga

14 Ga

12 Ga

14 Ga

Defl. (L/180)

Controlling, plf

18 202

391 261

449

Max Lap - 3 Spans

Stress

Controlling, plf

Defl. (L/180)

Controlling, plf

12 Ga

14 Ga

12 Ga

14 Ga

20 163

305 209

363

22 133

245 171

299

24 111

201 142

250

25 102

183 130

230 229

26 94 167 119

212 203

30 69 122 88 154 131

32

60

105

77

133

72

108

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 1996 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.