Hot Rolled H-Beam (GB 11263-89) (III)
Hot rolled H-beams are a kind of steel structure, with an H-shaped cross section in which the two parallel sides are usually equal in length. It is widely used in construction and engineering structures due to its relatively good combination of beam strength and column stiffness. In contrast to traditional I-beam, hot rolled H-beams are light and have greater bending strength compared to the same area of I-beam.
Hot rolled H-beams generally have flanges and web regions of the same thickness, which can provide stronger load points for the entire beam. In China, the national standard specification for hot rolled H-beam (GB 11263-89) provides the standard steel flange width and the corresponding height, which can correspond to the same value of the I-beam. At present, the H-beam production and installation cost is 15% lower than the I-beam.
In addition, hot-rolled H-beam can further improve the utilization efficiency of steel material.Modern H-beam production technology has enabled H-beam with a single web and double flange to be produced using the same universal steel mill.This means that a single compact mill could produce both H-beam and I-beam without having to switch different material. This technology not only reduces production costs, but also increases production efficiency.
Furthermore, hot rolled H-beams have higher connectable strength than traditional I-beams when used in connection in frames.Thanks to greater surface area on the flange, H-beam sections are used as support systems in building structures, cranes and other lifting machines, and transportation systems.Compared to traditional I-beam, H-beam can provide solid support from the web to the beam, which improves the safety and stability of the structure.
In summary, hot rolled H-beams offer significant advantages compared to I-beams. This is due to their stronger load bearing strength, stronger connection strength, higher utilization rate of steel material, and greater surface area of the flange.Hot rolled H-beam is widely used in various types of engineering structures such as buildings, bridges, and towers. As a result, it is an important part of the construction industry.
