Steel structure building is a form of construction in which building steel is the main load-bearing structure：

1.Definition and Composition

Steel structure building mainly consists of beams, columns, trusses and other components made of steel sections and plates to form the load-bearing structure, which together with the roof, floor and wall enclosure structure form a complete building. Building steel sections usually include hot rolled steel angles, channels, I-beams, H-beams and steel pipes. In addition, thin-walled steel sections such as L-shape, U-shape, Z-shape and tube-shape cold-rolled from thin steel plates, and its load-bearing structure buildings formed with components made of small steel materials such as angles and bars, are generally known as light steel structure buildings.

2.Features and Advantages

• Light weight and high strength:

The high strength and elastic modulus of steel and the uniformity of the material make the steel structure building, under the same stress conditions, have a small cross-section of members and light self-weight, which is convenient for transportation and installation.

Steel structure buildings are able to span a large space and are suitable for structures with high height and heavy load.

• Fast construction speed:

Steel structure components are easy to be manufactured in factories to realize industrialized production, and the site assembly speed is fast, which can greatly shorten the construction cycle.The construction of steel structure buildings is not affected by seasons, which is conducive to speeding up the project progress.

• Good seismic performance:

Steel has good toughness and plasticity, which can absorb and dissipate earthquake energy and improve the seismic performance of buildings.

• Environmental protection and energy saving:

After dismantling the steel structure building, the steel can be recycled and reused, reducing construction waste and environmental pollution.

Steel structure building is in line with the national sustainable development strategy, low carbon, green, environmental protection and energy saving, which is the key industry supported by the state.

• Flexibility and remodelability:

Steel structure buildings are easy to be remodeled and expanded in the process of use, and can meet the changes of different functions and spatial requirements.

• Fireproof & Anti-corrosion:

Although the steel structure building itself is not fire-resistant and easy to corrode, its fireproof and anti-corrosion performance can be improved by taking fireproof coating and anti-corrosion measures.

3.Application Fields

Steel structure buildings are widely used in many fields such as industry, civil buildings and public facilities. In the field of industrial buildings, steel structure buildings are suitable for factory buildings, warehouses, logistics centers, gas stations and substations, etc. In the field of civil buildings, they can be applied to office buildings, shopping malls, hotels, supermarkets, schools, etc. In the field of public facilities, they include gymnasiums, museums, hospitals, theaters, etc.

4.Development Prospects

With the continuous progress of modern technology and the enhancement of environmental protection consciousness, steel structure building, as a new type of building system, has a broad development prospect. Its advantages of high strength, light quality, fast construction speed, good seismic performance, environmental protection and energy saving will make it play a more important role in the future construction industry. Meanwhile, with the national emphasis on green building and sustainable development, steel structure building will also receive more policy support and promotion.

To summarize, steel structure building is gradually becoming an important part of modern buildings with its unique advantages and wide application fields.