Project overview: This project is a roof project of ICBC, with a total length of 55.25m. It is a triangular steel roof truss structure, with single span and web members of butt welded equilateral L steel, The roof adopts cold-formed thin-walled steel purlins, and the roof uses color steel cladding. General description of steel structure design, structural plan, foundation reinforcement drawing, node detail drawing, GWJ, embedded parts layout drawing, 1 in total