As one of the commonly used types of steel, hot-rolled H-shaped steel is widely used. So what are the characteristics of hot-rolled H-shaped steel? The following editors will analyze it with you:
H-rolled H-beam is a new type of economic construction steel. The shape of the H-shaped steel section is economical and reasonable, and the mechanical properties are good. The points on the section are evenly extended and the internal stress is small during rolling. Compared with ordinary I-beams, it has the advantages of large section modulus, light weight, and metal saving. The structure is reduced by 30-40%; and because the inside and outside of the legs are parallel, and the leg ends are at right angles, the assembly and assembly into components can save welding and riveting workload by 25%. Commonly used in large buildings (such as factory buildings, high-rise buildings, etc.) that require large load-bearing capacity and good cross-section stability, as well as bridges, ships, lifting and transportation machinery, equipment foundations, supports, foundation piles, etc.
Hot-rolled H-shaped steel is an economical section steel with better cross-section mechanical properties, which is optimized and developed from I-shaped steel. In particular, the cross-section is the same as the English letter "H". Its characteristics are as follows:
The flange is wide, the lateral stiffness is large, and the bending resistance is strong, about 5% -10% than that of I-beam.
The two surfaces of the flange are parallel to each other, which makes connection, processing and installation easy.
Compared with welded I-beams, it has low cost, high accuracy, and small residual stress. It does not require expensive welding materials and weld seams, saving about 30% of the cost of steel structure production.
下 Under the same cross-section load, the weight of hot-rolled H-shaped steel structure is 15% -20% lighter than that of traditional steel structure.
Compared with the 砼 structure, the hot-rolled H steel structure can increase the use area by 6%, while the structure's own weight is reduced by 20% -30%, which reduces the structural design internal force.
