Analysis and Suggestion About Development of Hot Rolled H-Beam Steel Products in Civil Buildings

To promote the use of hot-rolled H-beam steel products in civil buildings, the design principles of hot-rolled H-beam are analyzed and summarized by the Four Cardinal Principles: safety, reasonability, economy, and convenience. A product system that suits China’s conditions should be established accordingly. According to the analysis of hot-rolled H-beam product specifications systems in Europe, America, and Japan, combined with the actual situation in China and the development of the construction industry, some suggestions are proposed for the development direction of hot-rolled H-beam products in China. It is suggested that the hot-rolled H-section steel for civil construction should be subdivided according to the type of components, and the existing product specifications and subdivisions should be optimized. At the same time, the supporting detailing and the standardized set of application systems should be researched and developed. For beams, improving economy and convenience should be the main research direction to guide the standardization of steel structure design. For compression members, safety and rationality should be highly concerned, which should be used in their appropriate scope. The apposite scope could be extended by inventing new products, derivative products, and new structural systems.