Steel structure design common norms are as follows: "Steel Design Code" (GB50017-2003) "Cold-formed steel structure technical specifications" (GB50018-2002) "Construction Quality Acceptance of Steel" (GB50205-2001) "Technical Specification for welded steel structure" (JGJ81-2002, J218-2002) "Technical Specification for Steel Structures of Tall Buildings" (JGJ99-98) The factory steel structure/prefabricated steel structure/steel frame structure building is an pre-engineered steel structure which is widely used for the large-scale workshop, or used for the warehouse, supermarkets, entertainment centers and other buildings.. Company Information: Yantai Jedha industrial and Trading Co.,ltd is a professional manufacturer of Prefabricated buildings, Structure system, Metal sandwish panels, Prefabricated sandwich sheet, Accessory system, C/Z purlin and roof ventilating system in China. All of our products have been got the ISO9001: 2000/ ISO14001: 2004 Name Steel structuree Dimensions Length H beam: 4000-15000mm Thickness: web plate: 6-32mm wing plate: 6-40mm Height 200-1200mm Color According to customers Size MOQ is 300 m2, width * length * eave height, Advantages 1. Lower cost but beautiful outlook. 2. High safety performance. 3. easy to assemble and dismantle 4. manufacture under complete quality control system---ISO9001 5. installation with instruction of experienced engineers 6. Non-pollution. Main components Base Cement and steel foundation bolts Main frame H beam Material Q235B, Q345B or others as buyers' requests. Purlin C or Z purlin: Size from C120~C320, Z100~Z20 Bracing X-type or other type bracing made from angle, round pipe Bolt Plain bolt and High-strenth bolt Roof & wall Sandwich panel or color plate Door Sliding or rolling door Window Aluminium alloy window Surface Two lays of Anti-rust Painting or Hot Dip Galvanized Sheet 0.5mm or 0.6mm galvanized sheet Accessories Semi-transparent skylight belts, Ventilators, down pipe, Glavanized gutter, etc Usages 1. workshop, warehouse, plant 2. Steel web frame structure 3. Steel H-column and steel H-beam 4. Portal frame products 5. High rise building project 6. Others steel structure buildings Packing Main steel frame without packing load in 40' OT, roof and wall panel load in 40' HQ! Drawing: According to drawings or according to customer ' s requirement. Design Parameters If you need we design for you, please supply us the following parameter together with detail size: 1) length, width, height, eave height, roof pitch, etc 2) wind load, snow load, raining condition, aseismatic requirements, etc 4) Demands for doors and windows 5)Other information if necessary