Engineering Design Software for Steel Structure Constructions: AutoCAD, PKPM, MTS, 3D3S, Tarch,Tekla Structures(Xsteel)V12.0.etc Prefabricated Steel Building, Multi-storey structure construction, High-rise Steel Structure Living Apartment, Steel Storage Building 1. Light Weight  With high tensile strength, and resist compression, steel structure component has light section and weight. Using load-bearing framework, steel structure is lighter by 30% than ferroconcrete structure, which reduces transportation and lifting cost. 2. Good Seismic Performance Steel has good elastoplastic performances, which makes framework and node with good Ductility 3. High Effective Use of Space  Multi-storey steel structure has small section, and small floor space, which increases usable floor area. 4. Fast Construction Components of high-rise steel structure construction are made in factory and assembled at site. Compared with ferroconcrete multi-storey building, steel structure can shorten construction period by 25%~30%.