Structure introduction
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 that is 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:
1. The flange is wide and the lateral stiffness is large.
2. Strong bending resistance, about 5%-10% better than I-beam.
3. The two surfaces of the flange are parallel to each other, making connection, processing and installation easy.
4. Compared with welded I-beam, it has low cost, high precision and small residual stress. It does not require expensive welding materials and weld inspection, saving about 30% of the cost of steel structure production.
5. Under the same cross-sectional load, the weight of hot H steel structure is 15%-20% lighter than that of traditional steel structure.
6. Compared with the structure, the hot-rolled H steel structure can increase the use area by 6%, while the structure's self-weight is reduced by 20%-30%, reducing the internal stress of the structural design.
7. 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.
