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An I-beam is a type of steel shape. The elements of the beam are the web and horizontal symmetrical flanges on both sides of the web, together forming an H-shaped cross-section. I-beams can be distinguished based on their shape (narrow-flange, normal, wide-flange and column type), fabrication technology (rolled, welded, riveted or cold-formed), design (common or light), application (general or industry-specific) and other attributes.
Application of I-beams
I-beams are primarily used as a bridging material for the construction of buildings, support structures, bridge elements, overhead runways, etc. They are also used to reinforce mine shafts and other underground infrastructure facilities. The beams are normally used for horizontal steel structures to absorb vertical loads and bending stress. The flanges of the I-beam compensate for high deflection force, and the web helps to resist shear force. Depending on the type of structure and impacts the structure will be exposed to, design engineers select the required steel grade, type and cross section of I-beams.
This type of rolled product is also used in machine building, wagon building and other industries.
Welding helps to extend the range of beams and enhance the efficiency of their use, making it possible to manufacture practically any height and width of both flange and web. Welded I-beams can be produced with requested cutouts and holes and can also be made of different steel grades (bi-steel beams), which provides for more adaptable and efficient shapes.