CONSTRUCTION METHOD OF FIRE RESISTING STRUCTURE OF STEEL FRAME BEAM EQUIPPED WITH THROUGH HOLE

摘要

PROBLEM TO BE SOLVED: To provide a construction method of a fire resisting structure of a steel frame beam capable of having the excellence in fire resistance and workability and executing work for making a through-hole formed in the steel frame beam small.;SOLUTION: [1] The construction method of the fire resisting structure of the steel frame beam is equipped with a process providing a thermal expansion fire resisting sheet to the inside of the through-hole formed in the steel frame beam and a process providing a fire resistant coating material to the steel frame beam. [2] The process providing the thermal expansion fire resisting sheet to the inside of the through-hole formed in the steel frame beam is so executed that the thermal expansion fire resisting sheet is provided by extending it to both outsides of the steel frame beam from the through-hole, and the process providing the fire resistant coating material to the steel frame beam is the construction method of the fire resisting structure of the steel frame beam mentioned in [1] which is characterized by spraying the fire resistant coating material on the steel frame beam with the approximately same thickness as that of the extended width to the outside of the thermal expansion fire resisting sheet.;COPYRIGHT: (C)2007,JPO&INPIT