Features of I-beam Applications

I-beams are primarily categorized into standard I-beams, light I-beams, and wide-flange I-beams. Based on the ratio of flange width=100% to web height=100%, wide-flange I-beams can be further classified into wide, medium, and narrow series. The standard and light types are produced in specifications ranging from No. 10 to No. 60, corresponding to height=100%s of 10 cm to 60 cm. For the same height=100%, light I-beams have narrower flanges, thinner webs, and are lighter in weight. Wide-flange I-beams, also known as H-beams, are characterized by parallel legs with no inner slope.

Both standard and light I-beams have relatively tall and narrow cross-sections. This results in a significant difference in the moment of inertia about the two principal axes of the section.
Consequently, they are generally suitable only for use as members subjected to bending within the plane of their web or for building up latticed structural members. They are generally not suitable for axial compression members or for situations where bending occurs perpendicular to the plane of the web, which imposes significant limitations on their scope of application. I-beams are widely used in building structures and other metal structures.

The selection of I-beams must be based on the requirements specified in the design drawings.http://www.hnftsteels.com

In structural design, the choice of a suitable I-beam should be based on its mechanical properties, chemical composition, weldability, and dimensional characteristics.