Steel Structure and Roof of Shopping Mall - Creating Modern Commercial Space Shopping Mall Steel Structure refers to shopping mall buildings that use steel as the main structural material. The steel structure roof of shopping malls is one of the most important components in steel structure buildings. The steel structure roof of the shopping mall not only needs to bear its own weight and wind load, but also the weight of the pedestrian flow and logistics inside the mall. The design of steel structure roofs in shopping malls needs to consider various factors, such as the purpose of the building, geographical location, climate conditions, etc. In the design process, it is necessary to fully consider the drainage, insulation, waterproofing and other issues of the roof to ensure the long-term stability and service life of the steel structure roof of the shopping mall. The application of steel structures in shopping malls has become increasingly widespread. In commercial buildings, steel structures have become a mainstream construction technology, applied to various commercial places such as shopping centers, supermarkets, department stores, hotels, etc.