Fire Safety Engineering of Concrete-Filled Steel Tubular Column without Fire Protection

Abstract

The concrete-filled steel tubular column without fire protection was initially developed in Europe. Recently, the column has been widely used in buildings in Japan. Because of the differences of the form of the frame and differences of regulations between Japan and Europe, an improved approach is needed to apply the column more extensively in practice. This report presents modeling of the member and frame, based on fire tests and previous research, thermal analysis of the frame during fire, and consideration of on-site planning and execution, as designed by the authors in 47 buildings.