Q355b Low Alloy H-beam - Features and Advantages



1. Compared with I-beams, the structural strength is high, and the cross-sectional modulus is large. When the bearing conditions are the same, it can save 10-15% of metal.



2. The design style is flexible and rich. With the same beam height=100%, the bay of steel structure can be 50% larger than that of concrete structure, making the building layout more flexible. 3. Compared with the weight of concrete structures, the light weight of the structure reduces the internal force of the structural design, which can lower the requirements for foundation treatment of building structures, facilitate construction, and reduce costs.



4. High structural stability. Steel structures mainly made of low alloy H-shaped steel have a scientific and reasonable structure, good plasticity and flexibility, high structural stability, and are suitable for building structures that withstand large vibration and impact loads. They have strong resistance to natural disasters, and are particularly suitable for building structures in earthquake prone zones. According to statistics, among the devastating earthquake disasters with a magnitude of 7 or above in the world, steel structures mainly made of H-beams have the least degree of damage.



5. Compared to concrete structures, steel structure columns have a smaller cross-sectional area, which can increase the effective usable area of the building. Depending on the different forms of the building, it can increase the effective usable area by 4-6%.



6. Compared with welding H-shaped steel, it can significantly save labor and materials, reduce the consumption of raw materials, energy, and labor, lower residual stress, and have good appearance and surface quality. 7. Easy for mechanical processing, structural connection and installation, as well as easy removal and reuse.



8. The use of low alloy H-shaped steel for environmental protection can effectively protect the environment, which is manifested in three aspects:firstly, compared to concrete, dry construction can be used, resulting in less noise and dust; Secondly, due to the reduction of self weight, the amount of soil taken for foundation construction is small, which causes little damage to land resources. In addition, a significant reduction in concrete usage and the amount of rock excavation is beneficial for the protection of the ecological environment; Thirdly, 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.



9. High degree of industrial production. Steel structures mainly made of low alloy H-shaped steel have a high degree of industrial production, which is convenient for mechanical manufacturing, intensive production, high precision, easy installation, and easy to ensure quality. They can be built into real house manufacturing factories, bridge manufacturing factories, industrial factory manufacturing factories, etc. The development of steel structures has created and driven the development of hundreds of emerging industries.



10. The construction speed of the project is fast, the land occupation is small, and it is suitable for all-weather construction, with little impact from climate conditions. The construction speed of steel structures made of low alloy H-shaped steel is about 2-3 times that of concrete structures, and the capital turnover rate is doubled, reducing financial costs and thus saving investment. Taking the ' Jin Mao Building ' in Pudong, Shanghai, the ' tallest building ' in China, as an example, the main structure with a height=100% of nearly 400m completed the structural capping in less than half a year, while the steel concrete structure required a two-year construction period.