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Structural: Steel Design Practices and Principals

Steel Design Practices (and examples)

Las Vegas City Center
Fig. 1: An Example of Steel Construction (L.V. City Center)

From Wikipedia, "Steel is a metal alloy whose major component is iron, with carbon being the primary alloying material." Carbon acts as a binding agent, locking the otherwise easily-moved iron atoms into a rigid matrix. Varying the amount of carbon and its distribution in the alloy controls the qualities of the resulting steel. With the increased carbon, steel is harder and has a much higher tensile strength than iron, but is also more brittle (hardness and ductility can also be altered). One classical definition is that steels are iron-carbon alloys with up to 2.1 percent carbon.

The American Institute of Steel Construction (AISC) provides the design criteria for most steel elements. The most common Design Code currently being used by the IBC is the AISC 360 (13th edition).

Steel Analysis:

The different types of steel:

Common Steel Properties [1]:

Common Steel Properties include (english units):

Common Steel Properties include (metric units):


  1. Gere, James M. "Mechanics of Materials, Sixth Edition",2004
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Page last modified on May 10, 2011