How much weight will I beam support?
Category:
business and finance
civil engineering industry
If you have a beam of steel which has a basic permissible bending stress of about 23000 lbs per square inch, by the time you make allowances for the span and the lack of restraint, the actual bending stress that the beam can handle is down to about 6100 lbs per square inch under these conditions.
Herein, how far can a steel I beam span without support?
25 feet
Span (feet) | Weight Supported (lb) | |
---|---|---|
2 x 2" x 6" | 2 x 2" x 10" | |
6 | 1680 | 5000 |
8 | 3760 | |
10 | 3010 |
In this regard, how much weight will a 2x12x20 support?
You'd need some maths to figure out specifics but those 2x12's would hold around 150 pounds per foot x length x spans but then at some point you get into mode of rupture or elastics, dead weight live weight.
How to Calculate Load Bearing Beams
- Calculate the weight the beam must support.
- Calculate the maximum bending moment for the wooden beams.
- Calculate the beam's section modulus by dividing the maximum bending moment by the allowable fiber stress for wooden beams.
- Calculate the section modulus for the different beams which you could use.