H-beam for bridge construction and house construction / steel beam Short span steel / H-shaped beam

H-shaped steel is a new type of economical construction steel with good mechanical properties. When rolling, the extension of each point on the section is relatively uniform and the internal stress is small. Compared with ordinary I-shaped steel, it has the advantages of large section modulus, light weight, and metal saving. It can reduce the building structure by 30-40%; and because the inside and outside of the legs are parallel, and the legs are at right angles, they can be assembled and combined into components, which can save welding and riveting workload by up to 25%. It is often used in large buildings (such as factories, high-rise buildings, etc.) that require large bearing capacity and good section stability, as well as bridges, ships, lifting and transportation machinery, equipment foundations, brackets, foundation piles, etc. H-shaped steel is divided into two types: hot-rolled H-shaped steel and welded H-shaped steel.

H-beam classification

There are many product specifications of H-beam, and the classification methods are as follows.

(1) According to the flange width of the product, it is divided into wide flange H-beam (HW), middle flange H-beam (HM) and narrow flange H-beam (HN). The flange width B of wide flange and middle flange H-section steel is greater than or equal to the web height H. The flange width B of the narrow flange H-beam is approximately equal to one-half of the web height H.

(2) According to product use, it is divided into H-shaped steel beam, H-shaped steel column, H-shaped steel pile, and extremely thick flange H-shaped steel beam. Sometimes parallel leg channels and parallel flange T-beams are also included in the scope of H-beams. Generally, the narrow flange H-beam is used as the beam material, and the wide-flange H-beam is used as the column material.