Basic knowledge of H-beam

Published:

2017-07-29 21:34

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H-section steel is a kind of economical section steel with better section mechanical properties, which is developed from the optimization of I-section steel. Especially, the section is named after the English letter "H".

H-section steel is a kind of economical section steel with better section mechanical properties, which is developed from the optimization of I-section steel. Especially, the section is named after the English letter "H". Its characteristics are as follows:

The flange is wide and the lateral stiffness is large. Strong bending resistance.

The two surfaces of the flange are parallel to each other, which makes the connection, processing and installation simple.

Compared with welded I-beam, it has low cost, high precision, small residual stress, no need for expensive welding materials and weld detection, and it saves about 30% of steel structure production cost.

Under the same section load, the weight of hot-rolled H steel structure is 15% - 20% less than that of traditional tung structure.

Compared with the concrete structure, the hot rolled H steel structure can increase the use area by 6%, reduce the dead weight of the structure by 20% - 30%, and reduce the design internal force of the structure.

H-shaped steel can be processed into T-shaped steel, and honeycomb beams can be combined to form various cross section forms, which can greatly meet the requirements of engineering design and production.

H-shaped steel is mainly used in engineering, plant equipment, mechanical equipment, bridges, highways, civil buildings, etc; Good mechanical and physical properties, firm, energy saving and environmental protection effect. H-shaped steel is a kind of economical section steel, which is widely used in industry, construction, bridges, oil drilling platforms, etc. It is predicted that the demand for H-shaped steel in China will be about 2.5 million tons in 2005 and 5 million tons in 2010. However, the annual production capacity of H-shaped steel in China is 1.2 million tons, and the market demand is very huge.

Representation of hot-rolled H-section steel

H-shaped steel is divided into wide flange H-shaped steel (HK), narrow flange H-shaped steel (HZ) and H-shaped steel pile (HU). Its representation method is: Height H × Width B × Web thickness t1 × Thickness of wing plate t2, such as H-shaped steel Q235B, SS400 200 × two hundred × eight × 12 refers to H-shaped steel with wide flange of 200mm in height and 200mm in width, 8mm in web thickness and 12mm in flange thickness, and its brand is Q235B or SS400.

Advantages of Hot Rolled H-beam Steel H-beam is a new economic building steel

The section shape of H-shaped steel is economical and reasonable, and its mechanical properties are good. When rolling, each point on the section extends evenly, and the internal stress is small. Compared with ordinary I-shaped steel, H-shaped steel has the advantages of large section modulus, light weight, and metal saving, which can reduce the building structure by 30-40%; Because the inner and outer sides of the legs are parallel and the leg ends are at right angles, the welding and riveting work can be saved by 25%. It is commonly used for large buildings (such as factory buildings, high-rise buildings, etc.) with large bearing capacity and good section stability, as well as bridges, ships, lifting and transportation machinery, equipment foundations, supports, foundation piles, etc.  

At present, there are mainly Ma'anshan Iron and Steel Co., Ltd., Laiwu Iron and Steel Co., Ltd., Rizhao Iron and Steel Co., Ltd., Jinxi Iron and Steel Co., Ltd. and Changzhi Iron and Steel Co., Ltd. in China. Masteel is an enterprise producing H-beam steel in China.

On September 1, 2005, the China Strategic Promotion Committee authorized by the General Administration of Quality Supervision, Inspection and Quarantine formally determined that the hot rolled H-beam of Maanshan Iron and Steel Corporation (hereinafter referred to as Maanshan Iron and Steel Corporation) was a Chinese product.

On September 1, 2005, the China Strategic Promotion Committee authorized by the General Administration of Quality Supervision, Inspection and Quarantine formally determined that the hot rolled H-beam of Maanshan Iron and Steel Corporation (hereinafter referred to as Maanshan Iron and Steel Corporation) was a Chinese product.

H-beam

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