This project is a factory building expansion project of a stone company in Quanzhou, with portal rigid frame structure and 7-degree fortification. The drawings include: general description of steel structure design, ground floor plan, roof plan, elevation of each axis, section, steel column layout plan, roof structure layout plan, crane beam layout plan, roof purlin layout plan, wall purlin layout plan of each axis, 8 drawings in total, including rigid frame drawings of each axle