H-shaped steel is an economical cross-section and high-efficiency profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". Since all parts of H-shaped steel are arranged at right angles, H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost saving and light structural weight, and has been widely used.
H-shaped steel is a new type of economical construction steel. H-shaped steel has an economical and reasonable cross-section shape and good mechanical properties. During rolling, the extension of each point on the cross-section is relatively uniform and the internal stress is small. Compared with ordinary I-beam steel, it has the advantages of large section modulus, light weight and metal saving, which can make buildings The structure is reduced by 30-40%; and because the inner and outer sides of the legs are parallel and the leg ends are at right angles, they can be assembled into components, which can save 25% of the welding and riveting workload. It is often used in large buildings that require large interception capacity and good cross-sectional stability (such as factories, high-rise buildings, etc.), as well as bridges, ships, lifting and transportation machinery, equipment foundations, brackets, foundation piles, etc.
H-shaped steel is an economical cross-section steel optimized and developed from I-shaped steel with better cross-section mechanical properties. In particular, the cross-section is the same as the English letter "H", so it is named after it. Its characteristics are as follows:
◆Wide flange and high lateral stiffness.
◆Strong bending resistance, about 5%-10% better than I-beam.
◆The two surfaces of the flange are parallel to each other, making connection, processing and installation easy.
◆ Compared with welded I-beam, it has low cost, high precision and small residual stress. It does not require expensive welding materials and weld detection, saving about 30% of the cost of steel structure production.
◆Under the same cross-sectional load, the hot-rolled H steel structure is 15%-20% lighter than the traditional steel structure.
◆Compared with concrete structures, hot-rolled H steel structures can increase the use area by 6%, while the structure's dead weight is reduced by 20% to 30%, reducing the internal forces of structural design.
◆H-shaped steel can be processed into T-shaped steel, and honeycomb beams can be combined to form various cross-sectional forms, which greatly meets the needs of engineering design and production.
