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"U" Panel Information

"U" PANEL ALLOWABLE LOAD (PSD)*
   
SPAN IN FEET
SPAN TYPE LOAD TYPE 1.5' 2' 2.5' 3' 3.5' 4' 4.5' 5' 5.5' 6' 6.5' 7' 7.5' 8' 8.5' 9'
Single Positive Wind 386 217 139 96 70 54 42 34 28 24 20 17 15 13 12 10
Negative Wind 329 185 118 82 60 46 36 29 24 20 17 15 13 11 10 9
Live 386 217 139 96 70 54 42 34 28 24 20 17 15 13 12 10
Deflection (L/180) 492 207 106 61 38 25 18 13 9 7 6 4 3 3 2 2
Deflection (L/240) 369 155 79 46 29 19 13 9 7 5 4 3 2 2 2 1
2 Span Positive Wind 315 180 116 81 60 46 36 29 24 20 17 15 13 11 10 9
Negative Wind 364 210 136 95 70 53 42 34 28 24 20 17 15 13 12 10
Live 315 180 116 81 60 46 36 29 24 20 17 15 13 11 10 9
Deflection (L/180) 998 421 215 124 78 52 36 26 20 15 12 9 7 6 5 4
Deflection (L/240) 748 315 161 93 58 39 27 20 15 11 9 7 5 4 4 3
3 Span Positive Wind 387 223 144 101 74 57 45 36 30 25 21 18 16 14 12 11
Negative Wind 444 258 168 118 87 67 53 43 35 30 25 22 19 16 15 13
Live 387 223 144 101 74 57 45 36 30 25 21 18 16 14 12 11
Deflection (L/180) 781 329 168 97 61 41 28 21 15 12 9 7 6 5 4 3
Deflection (L/240) 586 247 126 73 46 30 21 15 11 9 7 5 4 3 3 2
4 Span Positive Wind 363 209 135 94 69 53 42 34 28 23 20 17 15 13 11 10
Negative Wind 418 242 157 110 81 62 49 40 33 28 23 20 17 15 14 12
Live 363 209 135 94 69 53 42 34 28 23 20 17 15 13 11 10
Deflection (L/180) 830 350 179 103 65 43 30 22 16 12 10 8 6 5 4 3
Deflection (L/240) 622 262 134 77 49 32 23 16 12 9 7 6 4 4 3 2

NOTES:

  1. Allowable uniform loads are based upon equal span lengths.
  2. Positive Wind is wind pressure and is not increased by 33 1/3%.
  3. Negative Wind is wind suction or uplift and is not increased by 33 1/3%.
  4. Live is the allowable live or snow load.
  5. Deflection (L/180) is the allowable load that limits the panels deflection to L/180.
  6. Deflection (L/240) is the allowable load that limits the panels deflection to L/240.
  7. The weight of the panel has not been deducted from the allowable loads.
  8. Positive Wind, Negative Wind, and Live Load values are limited to combined shear & bending using Eq. C3.3.1-1 of the AISI Specification.
  9. Positive Wind and Live Load values are limited by web crippling using a bearing length of 2".
  10. Web crippling values are determined using a ratio of the uniform load actually supported by the top flanges of the section.

  1. Section properties are calculated in accordance with the 2001 AISI North American Specification for the Design of Cold-Formed Steel Structural Members.
  2. Ix is for deflection determination.
  3. Se is for bending.
  4. Ma is the allowable bending moment.
  5. All values are for one foot of panel width.

*Oil canning is a natural occurance in metal and is not cause for panel rejection.

"U" PANEL SECTION PROPERTIES
 
TOP IN COMPRESSION
BOTTOM IN COMPRESSION
Panel Guage
Weight
PSF
KY
KSI
lx
IN.4
Se
IN.3
Ma
KIP IN.
lx
IN.4
Se
IN.3
Ma
KIP IN.
26
0.87
80
.0190
.0353
1.3043
.0130
.0130
1.1130

 
 
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