Q:

What is the load capacity of an I-beam?

A:

The type, span and size of an I-beam determine its load capacity. "I-beam" is a general term used to describe the wide flange, the American standard beam and the bearing pile, which all have an I-shaped cross section.

Keep Learning

Engineers consult a chart to find out the load capacity for a specific beam depending on the span and the type of load the beam must withstand. The most commonly used charts are in the Steel Construction Manual from the American Institute of Steel Construction.

Physical constraints determine the load capacities of beams. For example, the allowable uniform load for a W8 x 18 wide flange with a 8-foot span is 30,400 pounds, but it drops to 24,300 pounds for a 10-foot span and to 20,300 pounds for a 12-foot span.

Sources:

Related Questions

• A: The allowable load for an I-beam is determined by the beam’s designation, nominal size and its span. Calculate the designation by multiplying the beam’s wi... Full Answer >
Filed Under:
• A: To calculate beam spans, multiply the length of the beam with the maximum load of the floor of the room in pounds, and use this result to arrive at the bea... Full Answer >
Filed Under:
• A: A beam span table for laminated veneer lumber accounts for snow loads if the region to which it applies is affected by snow. Span tables vary by region, co... Full Answer >
Filed Under:
• A: A fully loaded concrete truck has a maximum load capacity of 10 cubic yards. Ten cubic yards of concrete covers an area of between 270 and 810 square feet,... Full Answer >
Filed Under:
PEOPLE SEARCH FOR