With the development of society and the continuous progress of construction technology, the importance of steel structure construction in new construction systems is becoming increasingly prominent. As a new construction system, steel structure has the advantages of high strength, lightweight, strong plasticity, and fast construction speed, and is widely used in various fields. Next, this article will provide a detailed introduction to this new construction system from four aspects: the definition, history, advantages and disadvantages, and future of steel structures.

1、 What is steel structure

Steel structure is a construction structure composed of steel as the primary material and connected by welding, bolts, and other means. It is made of steel as the skeleton, and can be filled with other materials such as concrete and bricks, and designed with decoration materials such as glass and sandwich panels for appearance. Compared to traditional concrete structures, steel structures have the characteristics of high strength, lightweight, strong plasticity, and fast construction speed, and can be suitable for various construction types.

2、 The History of Steel Structures

Early steel structures were primarily used in engineering such as bridges and railway tunnels. In the late 19th and early 20th centuries, steel structures were used in the construction field. The earliest steel structure construction was the West Side High Building in Chicago, USA, which used structural forms such as steel pipes and steel trusses. After the 1930s, with the continuous development of steel production technology and the acceleration of industrialization, steel structure construction has been widely used. Nowadays, steel structure construction has become an important type of construction system.

3、 Advantages of Steel Structures

(1) High strength: Steel structures have high strength and rigidity, which can effectively support large-span construction.

(2) Lightweight: Compared to concrete structures, steel structures are lighter in weight and can reduce foundation loads and transportation costs.

(3) Fast construction speed: Prefabricated modular production methods can be used for steel structure construction, reducing on-site construction time and costs, and improving construction efficiency.

(4) Strong plasticity: Steel structures can undergo diverse deformations and combinations according to design needs, adapting to various complex environments.

(5) Environmental protection and energy conservation: The construction of steel structures can not only reduce waste emissions and natural resource consumption, but also achieve the use and reuse of energy, in line with the concept of green construction.

4、 The Future of Steel Structures

With the improvement of social environment and people's requirements for construction quality, steel structure construction will inevitably be more widely used in the future.