Calculate Size Steel Beam Needed For Bridge

2 load details you need to know what type of load your beam will be supporting.
Calculate size steel beam needed for bridge. Staggered pattern with at least a 3 x 120 nail. If you re not sure what beam size to use just allow the steel beam calculator to select the beam size for you. The formula for the section modulus is beam width times beam depth squared divided by 6. Beams of more than one ply must be fastened together with either nails or bolts.
1 2 select steel beam size select the steel beam size from the dropdown list. Use a calculator to multiply the clear span by the length of the floor joist by the vertical load. The 2012 irc code calls for a minimum of a 32 o c. 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.
Choose an approximate size of steel i beam from a standard i beam table. Once you have chosen the right shape of beam select its dimensions depth width and weight from the dropdown menu. Divide the result by 1000 to get the figure in kips a non si unit of force equal to 1 000 pounds force and understand that 1 kip is equal to 4448 222 newtons. Calculate the section modulus for the different beams which you could use.
Draw bending moment diagram for the given loads and you will find the value of maximum bending moments say m that the steel i beam is expected to experience. 1 1 enter the steel beam span length enter the length of the steel beam. You have a choice of w beams s beams or american standard channels.