異形鋼結構也叫空間任意鋼結構，就是不同形狀的鋼結構，非標準件，主要的結構形式有網架、網殼、析架、門式鋼架、拉索結構以及以上幾種結構的組合。異形鋼結構一般用于商場、綜合樓、賓館、體育場館、城市雕塑、門樓造型、收費站，大樓屋頂，大型鋼結構樓梯、民用建筑中的影劇院、體育館、展覽館、大會堂、航空港候機大廳及其它大型公共建筑,要業建筑中的大跨度廠房、飛機裝配車間和大型倉庫等。

　　異形鋼結構重量輕、抗震性能好;鋼結構建筑占地面積小，具有良好的空間感。

　　Special-shaped steelstructure is also called spatialarbitrary steelstructure, is the different shape of thesteelstructure, non-standard parts , the main structuralform ofthe grid, mesh shell, truss, portalsteelframe, cable structure and the combination of the above severalstructures.Special-shaped steel structureis commonly used in shopping malls, buildings, hotels, stadiums, city sculpture,gate house modelling, tollstation, building roof, large steelstructure of the stairs,movie theater in civil building,gymnasium,exhibition hall, hall, airport lounges, and otherlarge public buildings, the construction oflarge span

　　workshop to industry, the aircraft assembly workshop and large warehouse, etc.The special-shaped steelstructure has light weight andgood seismic performance.Steelstructure building covers a smallarea andhas a good sense ofspace.