Yield strength of steel ksi e g.
How to size steel beam for roof load.
It has been my experience to never use a beam smaller than a two ply 2 x 8.
1 2 select steel beam size.
50 psf x 14ft 700 pounds per lineal foot.
The dead load is.
A single steel beam can easily span 30 feet.
15 psf x 14ft 210 pounds per lineal foot.
This calculator matches up with 90 of the applications in the 2012 international residential code book.
The weight that the steel beam is required to support.
If there is are any questions about anything else then you should contact your supplier or an engineer.
Span of beam inches tributary width inches uniform load pounds square foot e g.
910 pounds per lineal foot.
Determine the load per square foot that the roof must support.
Alternatively design in a specific timber or steel material type.
Individual timbers are relatively inexpensive but steel is so much stronger that you need much less of it.
The roof load is composed of a dead load and a live load.
You have a choice of w beams s beams or american standard channels.
1 1 enter the steel beam span length.
The length of the steel beam.
The size of the steel beam you will require will depend primarily on two factors.
Uniformly loaded simple beam steel i beams.
Most interior beams need to include the roof load.
It is important to list live load dead load and total load separately because live load is used to compute stiffness and total load is used to calculate strength.
No matter what the specs say.
The additional dead load depends.
Pick list all suitable timber and steel sections to design across all timber and steel sections.
Measure the distance in inches that you need the steel beam to fill.
To do a rough estimate get a copy of the architect s studio companion which is a compendium of useful rules of thumb.
Write this figure down on a sheet of paper as your clear span for the beam.
Multiply the load per square foot by the total area of the roof.
If an example roof is 10 feet by 20.
Select the steel beam size from the dropdown list.
It even may be less expensive than replacing the wood with wood.
