Calculate Size Steel Beam Needed For Bridge

The first input you need is the steel i beam load specifications or loading details on the steel i beam.

Calculate size steel beam needed for bridge.

2 load details you need to know what type of load your beam will be supporting. Choose an approximate size of steel i beam from a standard i beam table. We have learned from our experience to use at least a 3 1 4 x 131 groove shank nail in a column of four every foot apart down the laminate. Beams of more than one ply must be fastened together with either nails or bolts.

To calculate properties of girder such as area moment of inertia geometric center and section modulus for both steel wide flange girder section and composite section with concrete deck. 1 2 select steel beam size select the steel beam size from the dropdown list. Calculate the section modulus for the different beams which you could use. A two 2 by 6 standard beam has actual dimensions of 1 5 by 5 5 inches which would give a section modulus of 1 5 x 5 5 x 5 5 6 7 6 which is not enough for this example.

You have a choice of w beams s beams or american standard channels. 1 1 enter the steel beam span length enter the length of the steel beam. The formula for the section modulus is beam width times beam depth squared divided by 6. Once you have chosen the right shape of beam select its dimensions depth width and weight from the dropdown menu.

Staggered pattern with at least a 3 x 120 nail. The 2012 irc code calls for a minimum of a 32 o c. If you re not sure what beam size to use just allow the steel beam calculator to select the beam size for you.