steel load limits
steel load limits
(OP)
I need to know for a generalized estimate "how to figure a load limit for say a W8x18 wide flange beam?
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RE: steel load limits
There are several variables you have to consider such as the unbraced length, the span, the allowable deflection, bending, shear and axial loads (if any). If your conditions do not exactly fit the load tables, you must compute the stresses in the beam for each condition. An example would be a non-uniform load, a concentrated load, or other conditions.
Most libraries have a copy of at least one of the variations of the manuals. If you are near a University which has an engineering program, you can likely get a copy of one of the manuals from their bookstore or you can order online from a variety of sources, including the American Institute for Steel Construction (AISC) at www.aisc.org
If you are considering this for anything other than estimating purposes, please get a licensed structural engineer involved.
Ron
RE: steel load limits
The AISC Manual (both ASD and LRFD) provides beam tables for wide flanges. The tables provide max. uniform loads (kips/ft) for beams assuming they are totally laterally supported. This means that there are braces attached to the beam which prevent sideways movement of the compression flange, or some type of torsional restraint.
The AISC Specifications provide more detail in calculating the maximum load for a beam with unbraced lengths.
RE: steel load limits
RE: steel load limits
The bolt shear, clip angle bearing and shear, and connection of the clip to the supporting structure would not be affected.
RE: steel load limits
I think not only the section dimensions but also the support conditions are important when considering the capacity of this section.The 'Manual' will help as well but it won`t take the conditions like e.g. fork supports into account,so the strength of the section is not the only parameter.
Greetings from Turkey.