Do you know the characteristics of H-Beam steel?
Do you know the characteristics of H-Beam steel?
H-Beam steel is a widely used profile in today's steel structure buildings. The surface of H-Beam steel has no inclination, and the upper and lower surfaces are parallel. The section characteristics of H-Beam steel are obviously better than those of traditional I-beams, channel steel and Angle steel. So what are the characteristics of H-Beam steel?!
NO.1
The structural strength is high compared with I-steel, the section modulus is large, and the metal can be saved by 10-15% under the same bearing conditions.
NO.2
The design style is flexible and rich
In the case of the same beam height, the opening of the steel structure is 50% larger than that of the concrete structure, which makes the building layout more flexible.
NO.3
Light structural weight
Compared with the concrete structure, the reduction of the structure's self-weight reduces the internal force of the structure design, which can make the building structure foundation treatment requirements low, the construction is simple and the cost is reduced.
NO.4
High structural stability
The steel structure based on hot-rolled H-Beam steel has scientific and reasonable structure, good plasticity and flexibility, and high structural stability, which is suitable for building structures with large vibration and impact loads and strong resistance to natural disasters, especially for some building structures with multiple earthquake zones. According to statistics, in the world's devastating earthquake disaster of magnitude 7 or more, the H-Beam steel mainly steel structure buildings have the least degree of damage.
NO.5
Increase the effective use area of the structure
Compared with the concrete structure, the section area of the steel structure column is small, which can increase the effective use area of the building, depending on the different forms of the building, can increase the effective use area of 4-6%.
NO.6
Save labor and materials
Compared with welding H-Beam steel, it can significantly save labor and materials, reduce the consumption of raw materials, energy and labor, low residual stress, and good appearance and surface quality.
NO.7
Easy machining
Easy structural connection and installation, but also easy to remove and reuse.
NO.8
Environmental protection
The use of H-Beam steel can effectively protect the environment, which is reflected in three aspects: first, compared with concrete, dry construction can be used, resulting in less noise and less dust; Second, due to the reduction of self-weight, less soil extraction for foundation construction, less damage to land resources, in addition to a large reduction in the amount of concrete, reduce the amount of rock excavation, conducive to the protection of 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.
NO.9
High degree of industrial production
The steel structure based on hot rolled H-Beam steel has a high degree of industrial production, which is convenient for mechanical manufacturing, intensive production, high precision, easy installation, easy quality assurance, and can be built into a real house production factory, bridge production factory, industrial plant production factory, etc. The development of steel structure has created and driven the development of hundreds of new industries.
NO.10
The construction speed is fast
It covers a small area and is suitable for all-weather construction and is less affected by climatic conditions. The construction speed of the steel structure made of hot-rolled H-Beam steel is about 2-3 times that of the concrete structure, the capital turnover rate is doubled, and the financial cost is reduced, thus saving investment. Taking China's "tallest building" in Shanghai Pudong "Jinmao Tower" as an example, the main body of the structure up to nearly 400m has completed the structure capping in less than half a year, while the steel-concrete structure takes two years to complete.
