The main types of steel frame structures include:

Steel frame structure: Formed by steel beams and columns connected by welding or bolts to form a spatial frame, bearing vertical and horizontal loads (such as wind and earthquake). High node rigidity, good overall stability, flexible spatial layout, suitable for high-rise buildings, office buildings, shopping malls, etc. Typical applications include the Shanghai Tower and Ping An Finance Centre in Shenzhen.

Steel truss structure: Composed of rods connected by hinges or rigid joints to form triangular units, forming a large-span spatial structure, mainly subjected to axial forces. Light weight, large span (can reach more than 100 meters), outstanding economy, suitable for stadiums, airport terminals, etc. Typical applications include the National Stadium (Bird's Nest) and Beijing Daxing International Airport.

Portal frame structure: Formed by rigid connections of variable-section steel columns and beams into single-span or multi-span frames. Simple structure, fast construction. Suitable for single-story industrial plants, warehouses, logistics centers and other low-rise, large-space buildings.

Suspension and tension structures: Utilizing high-strength steel cables or tie rods to bear tensile forces, combined with supporting structures to form large-span coverage. Light and elegant shape, extremely large span (such as bridges), but complex node design. Typical applications include suspension bridges (such as the Akashi Kaikyō Bridge) and membrane structure stadiums.

Composite structure: A combination of steel and concrete (such as steel-concrete composite columns, steel-concrete composite beams), combining the lightweight properties of steel with the compressive strength of concrete, excellent seismic performance, suitable for super-high-rise buildings and bridges. Typical applications include Taipei 101 (steel-concrete core tube).

These steel frame structures each have their own characteristics and applicable scopes. With the continuous development of construction technology, more innovative forms will continue to emerge, providing more possibilities for the development of the construction field.