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.
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 building structure foundation treatment requirements low, simple construction and lower cost.
High structural stability: The hot rolled H-shaped steel based steel structure, its structure is scientific and reasonable, good plasticity and flexibility, high structural stability, suitable for bearing vibration and impact load of large building structures, strong resistance to natural disasters, especially suitable for some multi-earthquake zone building structures. According to statistics, in the world's devastating earthquake disaster of magnitude 7 or more, the H-shaped steel mainly steel structure buildings have the least degree of damage.
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%.
Save labor and materials: Compared with welding H-shaped 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.
Easy machining: easy structural connection and installation, but also easy to remove and reuse.
Environmental protection: The use of H-shaped 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.
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.
Fast construction speed: small footprint, and suitable for all-weather construction, little affected by climate conditions. The construction speed of the steel structure made of hot-rolled H-shaped 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.