Premium Profile Steel H Beam for Structural Support
H-beam is a kind of high efficient profile with economic section which has more optimised distribution of cross-sectional area and more reasonable strength-to-weight ratio, and is named because its section is the same as the letter "H" in English. Since all parts of H-beam are arranged at right angles, steel h beam has the advantages of strong bending resistance in all directions, simple construction, cost saving and light weight structure, etc., and has been widely used.
Scope of application of H-beam
H-beam is mainly used for beams and columns in industrial and civil structures.
Analysis of the characteristics of section steel
◆Steel structure load-bearing bracket of industrial buildings
◆ Steel piles and supporting structures of underground projects
◆ Industrial equipment structure of petrochemical and electric power
◆ Large-span steel bridge components
◆ Ship, machinery manufacturing frame structure
◆Trains, automobiles, tractor beam supports
◆ Harbour conveyor belt, high-speed baffle bracket
H-beam is a kind of economic section steel, which is widely used in industry, construction, bridge, oil drilling platform, etc. It is predicted that the demand of H-beam in China is about 2.5 million tonnes in 2005, and 5 million tonnes in 2010, but at present, the annual production capacity of H-beam in China is 1.2 million tonnes, which makes the market demand very huge.
1. High structural strength: compared with I-beam, the section modulus is large, which can save 10-15% of metal in the same bearing conditions.
2. Flexible and rich design style: in the case of the same beam height, the opening of steel structure can be 50% larger than that of concrete structure, thus making the building layout more flexible.
3. Light structural deadweight: compared with the deadweight of concrete structure, the reduction of structural deadweight reduces the internal force of structural design, which can make the building structure with low foundation treatment requirements, easy construction and lower cost.
4. High structural stability: hot-rolled H-beam steel-based steel structure, its structure is scientific and reasonable, good plasticity and flexibility, high structural stability, suitable for bearing vibration and impact loads on the building structure, strong resistance to natural disasters, especially suitable for some of the multi-earthquake zone of the building structure. According to statistics, in the world, in the devastating earthquake disaster of more than 7 magnitude, the degree of damage to the steel structure building mainly made of H-beam is the smallest.
5. Increase the effective use area of the structure: Compared with concrete structure, the cross-section area of steel structure column is small, which can increase the effective use area of the building, depending on the different forms of the building, it can increase the effective use area by 4-6%.
6. Save labour and materials: compared with welded H-beam steel, it can obviously save labour and materials, reduce the consumption of raw materials, energy and labour, low residual stress, good appearance and surface quality.
7. Convenient mechanical processing: easy structural connection and installation, but also easy to dismantle and reuse.
8. Environmental protection: the use of H-beam steel can effectively protect the environment, specifically in three aspects: First, compared with concrete, can be used in dry construction, resulting in small noise, less dust; Secondly, due to the self-weight reduction, the foundation of the construction of the amount of soil less, less damage to land resources, in addition to a large number of reduction in the amount of concrete to reduce the amount of excavation and stone cutting, conducive to ecological protection; Thirdly, the expiration of the service life of the building structure. Thirdly, after the expiry of the service life of the building structure, the amount of solid waste produced is small, and the recycling value of scrap steel resources is high.
9. High degree of industrialised production: the steel structure mainly made of hot-rolled H-beam steel has a high degree of industrialised production, which is convenient for machinery manufacturing, intensive production, high precision, convenient installation and easy to guarantee the quality, and it can be built into a real house making factory, bridge making factory, industrial plant making factory, and so on. The development of steel structure has created and driven the development of hundreds of new industries.
10. Fast construction speed: small footprint, and suitable for all-weather construction, less affected by weather conditions. The construction speed of steel structure made of hot rolled H-beam steel is about 2-3 times of the construction speed of concrete structure, and the capital turnover rate is improved exponentially, which reduces the financial cost and thus saves investment.