This book introduces the commonly used geometric drawing methods, the basic theory and concept of lofting, the material length calculation and cutting and blanking of steel plates and sections, the basic knowledge of metal materials, tools and appliances commonly used by riveting workers, tools and materials commonly used by welders, lofting and blanking and plate thickness treatment, riveting operation technology, cutting and blanking, bending and calendering, manual arc welding operation technology, welding and gas cutting operation technology, riveting assembly, deformation and correction of steel structures. The content is concise and practical, which can be used as self-study reading materials and technical training materials for riveters in construction and installation enterprises, and can also be used as a reference for other types of work.