鋼結構建筑是以建筑鋼材構成承重結構的建筑。通常由型鋼和鋼板制成的梁、柱、析架等構件構成承重結構。其與屋面、樓面和墻面等圍護結構，共同組成整植的建筑物。

　　建筑型鋼通常指熱軋成型的角鋼、槽鋼、工字鋼、H型鋼和鋼管等。由其構件構成承重結構的建筑稱型鋼結構建筑。另外由薄鋼板冷軋成型的、卷邊或不卷邊的L形、U形、Z形和管形等薄壁型鋼，以及其與小型鋼材如角鋼、鋼筋等制成的構件所形成的承重結構建筑，一般稱輕型鋼結構建筑。還有采用鋼索的懸索結構建筑等,也屬鋼結構建筑。

　　Steelstructure building is a structure of building steel bearing structure.Beams, columns and trussesusually made of section steeland steelplate constitute load-bearing structures.lt and the roof,floorandwalland other envelope structure, together constitute a whole plant building.Construction steelusuallyrefers to hotrolled Angle, channel, i-beam, h-beam and steelpipe.By its component constitutes theload-bearing structure the building is called the section steelstructure building.In addition, by the thin steelplate cold rollingformed,rolled ornotrolled l-shaped, u-shaped, z-shaped and tubularand otherthin-wallsteel, and its and smallsteelsuch asAngle steel,steel bar made of components formed by the load-bearingstructure building,generally called light steelstructure building.still have the structure that USES steelcable to hang a cable to wait, also belong to steelstructure building.