Page 14 - Aickinstrut Framing Catalog

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Channel Loading
The multipliers shown in the beam loading conversion table reflect the adjustments to be made for a variety of beam loading conditions. The multipliers should be used in conjunction with the Beam Loading Chart.
The values in the Beam Loading Chart are based on a simple beam with uniform loading. By using the Beam Loading Conversion Table, you will be able to estimate the maximum recommended loading and deflection for your particular application.
3. Simple Beam,
Two Equal Concentrated Loads at 1/4 pts
7. Cantilever Beam, Concentrated Load at End
LOAD AND SUPPORT CONDITION
LOAD FACTOR
0.50
0.25
0.12
DEFLECTION FACTOR
1. Simple Beam, Uniform Load
2. Simple Beam,
Concentrated Load at Center
SPAN
1.00
1.00
0.80
1.00
1.10
4. Beam Fixed at Both Ends, Uniform Load
1.50
1.00
0.30
5. Beam Fixed at Both Ends, Concentrated Load at Center
0.40
6. Cantilever Beam, Uniform Load
SPAN
2.40
3.20
8. Continuous Beam, Two Equal Spans, Uniform Load on One Span
1.30
0.92
SPAN
SPAN
9. Continuous Beam, Two Equal Spans, Uniform Load on Both Ends
10. Continuous Beam, Two Equal Spans, Concentrated Load at Center of One Span
1.00
0.62
0.42
11. Continuous Beam, Two Equal Spans, Concentrated Load at Center of Each Span
0.67
0.71
0.48
EXAMPLE:
Determine load and deflection of a 30" 20P-2100 cantilever beam with a concentrated load on the end.
Solution:
1. From the load table on the previous page, the maximum load for a 30" span is 2,224 lbs. and deflection for that load is 0.177".
2. Multiply by factors from the table above. Load = 2,224 lbs. x 0.12 = 267 lbs. Deflection = 0.177" x 3.20 = 0.566"
3.Thus, the 30" cantilever beam will support a maximum concentrated load of 267 lbs. on the end and that load will cause a 0.566" deflection.
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Aickinstrut
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