H-shaped steel is a commonly used steel. Today I will tell you what are the common application characteristics of H-shaped steel.
High structural strength
Compared with I-shaped steel, it has a large section modulus and can save 10-15% of metal under the same load-bearing conditions.
Flexible and rich design style
Under the same beam height, the bay of the steel structure can be 50% larger than that of the concrete structure, making the building layout more flexible.
Light structural weight
Compared with the concrete structure, the reduction of the structural weight reduces the internal force of the structural design, which can make the foundation treatment requirements of the building structure low, the construction is simple, and the cost is reduced.
High structural stability
The steel structure mainly composed of hot-rolled H-shaped steel has a scientific and reasonable structure, good plasticity and flexibility, and high structural stability. It is suitable for building structures that withstand large vibration and impact loads, and has strong resistance to natural disasters. It is especially suitable for building structures in some earthquake-prone areas. According to statistics, in the world’s devastating earthquake disasters of magnitude 7 or above, steel structure buildings mainly composed of H-shaped steel suffered less damage.
Increase the effective use area of the structure
Compared with concrete structures, the cross-sectional area of steel structure columns is small, which can increase the effective use area of the building. Depending on the different forms of the building, the effective use area can be increased by 4-6%.
Save labor and materials
Compared with welded H-shaped steel, it can significantly save labor and materials, reduce the consumption of raw materials, energy and manpower, have low residual stress, and good appearance and surface quality.
Easy to machine
Easy to connect and install the structure, and easy to dismantle and reuse.
Environmental protection
Using H-shaped steel can effectively protect the environment, which is specifically manifested in three aspects: First, compared with concrete, it can be used for construction, which produces less noise and less dust; second, due to the reduction of self-weight, the amount of soil taken for foundation construction is small, and the damage to land resources is small. In addition, the amount of concrete used is greatly reduced, and the amount of mountain excavation and stone excavation is reduced, which is beneficial to the protection of the ecological environment; third, after the service life of the building structure expires, the amount of solid waste generated after the structure is dismantled is small, and the recycling value of scrap steel resources is high.
High degree of industrialized production
Steel structures mainly based on hot-rolled H-shaped steel have a high degree of industrialized production, are easy to machine, intensively produced, have high precision, are easy to install, and are easy to ensure quality. They can be built into real house manufacturing factories, bridge manufacturing factories, industrial plant manufacturing factories, etc. The development of steel structures has created and driven the development of hundreds of emerging industries.
