How do I calculate beam size?

How do I calculate beam size?

Multiply the loading per square foot by the area in square feet of the surface which the beams will be supporting. Divide by the number of beams which will be installed to get the loading per beam.

How do you calculate beam strength?

Shear Stresses in Rectangular Sections The maximum value of Q occurs at the neutral axis of the beam (where y1 = 0): The shear stress at any given point y1 along the height of the cross section is calculated by: where Ic = b·h3/12 is the centroidal moment of inertia of the cross section.

How do you calculate beam load capacity?


  1. Loads on the RCC Slab. Self-weight= concrete unit weight * Volume of concrete. = 24 * 0.1= 2.4 KN/m2
  2. Loads on the Beam. Self-weight= concrete unit weight* beam width*beam height. =24 * 0.28*0.25= 1.68 KN/m.
  3. Compute Applied Moment. Assume partial fixity of columns.
  4. Geometry of the Original Section.

How far can a wood beam span without support?

A 2×10 beam – made up of two 2x10s nailed together – can span up to 11′ without support beneath a deck that is 4′ wide. For a more normal-sized deck, the same beam can span 8′, supporting a deck that is 8′ wide.

How do you calculate steel beam size?

Measure the distance in inches that you need the steel beam to fill. Write this figure down on a sheet of paper as your clear span for the beam. Measure the length in inches of the floor joist that the I-beam must support. Divide that number by two.

How much weight can a 4 I-beam support?

4 inch I-beam | 10′ Long | ASTM A36 Grade When used with Webb 1,500 pound beam trolley model 10711 the maximum load is 1,500 pounds.

Is there a new Branz lintel and beams calculator?

In a major overhaul of the BRANZ Lintels and Beams Calculator, an updated producer statement, additional drawings and more options for types of beams and fixings are now available. Figure 1 New calculation table. Figure 2 Calculating concentrated loads.

What do you need to know about lintels and beams?

The Lintels and Beams calculator is intended for the design of lintels and beams in timber-framed buildings generally within the scope of NZS 3604. While the online calculator is under review, the Lintels and Beams spreadsheet is available to assist in making calculations.

How can I use the free beam calculator?

How to Use The Free Beam Calculator. The ClearCalcs beam calculator allows the user to input the geometry and loading of a beam for analysis in a few simple steps. It then determines bending moment, shear and deflection diagrams, and maximum demands using a powerful finite element analysis engine.

Do you have to include roof load in beam calculator?

You only have to select all of the loads that apply. Most interior beams need to include the roof load. If there is are any questions about anything else, then you should contact your supplier or an engineer. This calculator matches up with 90% of the applications in the 2012 International Residential Code book.