| abstract |
(57) [Summary] [PROBLEMS] To be excellent in workability and to be able to work so as to be flush with an indoor side wall surface, since a fire-resistant heat-insulating layer formed at the time of heating is maintained without being destroyed. Provided is a fire-resistant steel frame covering excellent in fire resistance performance. The periphery of an H-shaped steel 1 is covered with a laminate of a sheet A made of a non-combustible material and a sheet B made of an adiabatic expansion material according to the length of the H-shaped steel 1 flange portions 2 and 2 '. Between the laminate and the H-section steel 1 flange portions 2, 2 ', Further, a heat insulating material is disposed in the hollow portions 5, 5 'formed by the laminate and the H-section steel 1. |