In contrast to traditional buildings, steel structures represent a modern approach to construction—these buildings are entirely composed of steel. The framework primarily consists of steel beams, columns, trusses, and other components made from section steel and steel plates. These elements are interconnected through welding, bolts, and rivets.

The lightweight and streamlined designs are widely utilized in large factories, stadiums, super high-rise buildings, and various other applications. Types of steel building structures include portal rigid steel frames, frame structures, truss structures, and grid structures.

Features and Applications of Standard Steel Building Structures:
Portal Frame Structure: This type offers straightforward load distribution, a clear pathway for force transmission, and rapid construction. It is commonly used in both industrial and civil projects, including commercial, cultural, and entertainment public facilities.
Steel Frame Structures: These structures are adaptable and can create expansive spaces. They are frequently employed in multi-story and high-rise buildings such as commercial office complexes, shopping malls, conference centers, and more.
Steel Truss Structures: Utilizing small cross-section tubes to form larger components, these structures are often found in industrial and civil projects like large-span roofs, bridges, towers, and marine oil production platforms, particularly where significant spans or heights are required.
Steel Grid Structures: This high-order statically indeterminate space structure comprises numerous rods arranged according to specific rules, resulting in minimal space stress, lightweight characteristics, high rigidity, and excellent seismic resistance. Applications include gymnasiums, exhibition halls, petrol stations, and hangars.