H-shaped steel is an economical and efficient profile with more optimized cross-sectional area distribution and more reasonable strong 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, simple construction, cost saving and light structural weight in all directions, and has been widely used. The inner and outer sides of the flange of H-shaped steel are parallel or close to parallel, and the ends of the flange are at right angles, so they are named parallel flange I-shaped steel. The web thickness of H-shaped steel is smaller than that of ordinary I-shaped steel with the same high web, and the width of the wing edge is larger than that of ordinary I-shaped steel with the same high web, so it is also named wide edge I-shaped steel. Determined by the shape, the cross-sectional modulus, moment of inertia and corresponding strength of H-shaped steel are significantly better than ordinary I-shaped steel with the same single weight. It is used in metal structures with different requirements, whether it is subject to bending moment, pressure load, or eccentric load, it shows its superior performance, which can greatly improve the load-bearing capacity compared to ordinary I-shaped steel and save 10% to 40% of metal. The H-shaped steel has wide flange, thin webs, many specifications, and flexible use. It can save 15% to 20% of metal in various truss structures. Because the inner and outer sides of the flange are parallel and the edge ends are right angled, it is easy to assemble and combine into various components, thus saving about 25% of the welding and riveting workload, which can greatly speed up the construction speed of the project and shorten the construction period. Due to the above advantages, H-shaped steel is widely used and is mainly used in: various civil and industrial building structures; industrial factories with various large spans and modern high-rise buildings, especially industrial factories with frequent seismic activities and high-temperature working conditions; large bridges with large load capacity, good cross-section stability and large spans; heavy equipment; highways; ship skeletons; mine support; foundation treatment and dam engineering; various machine components.
H-shaped steel is an economical and efficient profile with more optimized cross-sectional area distribution and more reasonable strong 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, simple construction, cost saving and light structural weight in all directions, and has been widely used. The inner and outer sides of the flange of H-shaped steel are parallel or close to parallel, and the ends of the flange are at rig...
