Analysis of the Classification of Steel Structures

Steel structures are widely used in fields such as architecture, bridges, and machinery due to their high strength, light weight, and good seismic performance. Different classification standards divide steel structures into various types, each with its unique characteristics and applicable scenarios.

structural form

From the perspective of structural form, steel structures are mainly divided into portal frame structures, frame structures, and truss structures.

The portal frame structure consists of steel beams and steel columns. It features a simple shape and convenient construction. People often use it in single-story buildings, such as factories and warehouses. It is suitable for multi-story and high-rise buildings. Frame structures are commonly used in multi-story buildings, such as schools and libraries. The truss structure consists of many rods connected at nodes. It features reasonable stress and light self-weight. People mostly use it in large-span buildings, such as gymnasiums and exhibition halls.

material properties

According to material properties, steel structures can be divided into carbon steel structures and alloy steel structures.

Carbon steel structures use carbon steel as the main material, which has low cost and can meet the stress requirements of general projects, and is widely used in ordinary buildings and light machinery.

Alloy steel structures are made of alloy steel. By adding alloying elements such as manganese, silicon, and chromium, the strength, toughness, and corrosion resistance of the steel are significantly improved.

They are suitable for projects under heavy loads and harsh environments, such as large bridges and high-pressure vessels.​

From the perspective of application, steel structures can be divided into building steel structures, bridge steel structures, ship steel structures, and mechanical steel structures.

Building steel structures are the most widely used type, covering various industrial and civil buildings. Bridge steel structures have the characteristics of large span and strong bearing capacity, and can adapt to complex terrain and traffic needs.

Ship steel structures need to have good seawater corrosion resistance and structural strength to ensure the navigation safety of ships.

Mechanical steel structures are used to manufacture frames, brackets and other components of various mechanical equipment, requiring high precision and stability.​

Different types of steel structures have specific requirements in the design, manufacturing and construction processes. Understanding the classification of steel structures is helpful to select appropriate structural forms and materials according to specific needs in practical projects, give full play to the performance advantages of steel structures, and ensure the safety, economy and efficiency of the project.