| 摘要 |
PROBLEM TO BE SOLVED: To provide an outer wall fireproof structure for a steel-frame construction, whose fireproof performance is hardly reduced even at an abutting part of ground materials and an abutting part of outer wall materials.SOLUTION: An outer wall fireproof structure for a steel-frame structure includes a plurality of vertically long light-gauge steel bars 1, and rectangular first gypsum boards 2, rectangular second gypsum boards 3, and rectangular outer wall materials 5, which are arranged on a surface of the light-gauge steel bars 1. Two vertical sides of the first gypsum boards 2 are positioned on the light-gauge steel bars 1, and two vertical sides of the second gypsum boards 3 are positioned on the light-gauge steel bars 1 different from the ones on which the vertical sides of the first gypsum boards 2 are positioned. Lateral sides of the second gypsum boards 3 and the first gypsum boards 2 are positionally shifted from each other in the vertical direction. The outer wall materials 5 are installed in the laterally long direction and fixed on the surface of the light-weight steel bars 1 with fastening tools 6 interposed therebetween in a state that two long sides thereof do not overlap with the lateral sides of the first gypsum boards 2 and the second gypsum boards 3. |
