![]() ![]() This section is highly efficient to be used as a secondary structural member where the loading is transferred onto other primary structural members. Channel is the common notation used in AISC Steel Construction manual for this type of section This section is mostly used for uniformly distributed load applications with small moment/bending. The shape profile of this section looks similar to alphabet “C” hence we call them C shape. Offers less torsional resistance, since it is an open section.įigure: Typical usage of I shape section as Beams and Columns C Shape / Channels.Cannot be loaded in the X-X direction, as the section offer very little structural capacity compared to Y-Y direction.Provides good compatibility for connections to other primary or secondary members.Wide range of defined section availability in steel design manuals, allows for optimum structural design.Universal member - can be used for most structural member applications.High conservation of steel compared to solid rectangular or square section.Most common usages of this section are beams/girder, columns in Buildings and Bridges. This section is highly efficient to resist (in order) flexure, and compression. This section is used for all the types of load combinations, except pure rotation. W shape is the common notation used in AISC Steel Construction manual for this type of section. The shape profile of this section looks similar to alphabet “I” or “H”. We analyze each section type based on structural design criteria, usability and shape profile benefits. Here we go through each section type briefly. Thus, conserving steel consumption (volume and weight). The molding of a solid section into shape profiles help to achieve high material to capacity ratio. Moment of Inertia and/or Section modulusĬheck out Sk圜iv's free moment of inertia calculatorĬircling back to molding a solid section into different steel profiles Based on multiple load combinations load applied, structural phenomena subjected and resistance parameter required, solid sections are molded and configured to various shape profiles.In order to assess a member against the above-mentioned phenomena, there are few parameters (including but not limited to) that indicate the resistance offered such as: Most common load applications that are encountered in the construction includes one or combination of below:ĭepending on type and manner of the load application/s, a member is subjected to one or combination of structural phenomena such as: Square, Rectangular, and Round Hollow Structural Section (HSS)Īfter going through the above list, one might wonder, why do we need to mold the steel sections into different shapes, instead use solid shapes (rectangular, square, circular or other polygons)? In order to know the reason, we need to understand a little about the load applications, structural phenomena subjected on member, parameters that control the structural capacity of a member. ![]()
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