Structural steel engineering primarily involves the construction using steel, mainly composed ofSection steelAndSteel plateUpon completion.Steel beamSteel columns, trusses, and other components are assembled, typically connected by welds, bolts, or rivets between the various components or parts. It is one of the main types of building structures. Due to its relatively light self-weight and ease of construction, it is widely used in large factories, bridges, venues, and ultra-high-rise buildings.