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FLOOR UNIFORM LOAD DISTRIBUTION
These examples use an assumed load of 50 PSF.
You will be designing with two sets of loads:
Live Loads and Total Loads (dead load + live load)
The live load appropriate to your locale is specified by your building official. The dead load is the actual weight of the construction materials to be used in the project. Common residential loads are 40 PSF live load and 10 PSF dead load, for a total load of 50 PSF.
Note that the formulas in Example 3 provide for more accurate reactions. Beginning designers often try to be overly exact in their calculations only to find that a close approximation will often result in the same beam size selection. Accuracy is important, but the range of accuracy should to be appropriate to the task.
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