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PLF Load based on 16" spacing

mgilbertson

Structural
Joined
Mar 28, 2019
Messages
5
Location
US
I am trying to design a beam based on 810# end reaction of the supported products. The products are spaced 16" apart. I know to take that end reaction divide by 2 to get a plf load on that beam for 24" spacing. But do not recall how to get for 16" spacing.
 
PLF = PSF x spacing in feet
To calculate PLF (Permanent Load Factor) use the formula above. FOr distances in inches, convert the distance to feet by dividing the inches by 12.
Example 1: 24 inch spacing. PLF = PSF * 24/12 = PSF * 2
Example 2: 16 inch spacing. PLF = PSF * 16/12 = PSF * 1.3333

A uniform load is a continuous load along the entire length of a member and is expressed in PLF.
 

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