Title:
FIREPROOF STRUCTURE OF STEEL COLUMN
Document Type and Number:
Japanese Patent JP2023003711
Kind Code:
A
Abstract:
To provide a fireproof structure of a steel column improved in workability, without impairing fire resistance.SOLUTION: A fireproof structure 1 of a steel column 2 has the steel column 2 and a fireproof plate 3 arranged with a space in relation to the steel column 2 and covering the steel column 2. The fireproof structure 1 of the steel column 2 has an opening 32 formed to the fireproof plate 3, a wiring box 4 having an opening face on one face and fitted to the fireproof plate 3 with the opening face facing the opening 32 and positioned between the fireproof plate 3 and the steel column 2, and a fireproof covering material 7 covering the wiring box 4 between the fireproof plate 3 and the steel column 2. The fireproof covering material 7 has a pair of side covering materials 71 fitted to a left side plate 42 and a right side plate 43 of the wiring box 4 and extending to the steel column 2, and an upper covering material 72 jointing the upper ends of the pair of side covering materials 71 with each other, and the parts corresponding to a back plate 45 and a bottom plate 44 of the wiring box 4 are opened.SELECTED DRAWING: Figure 3
Inventors:
YOSHIDA YUKIO
ONEDA MASATO
ONEDA MASATO
Application Number:
JP2021104956A
Publication Date:
January 17, 2023
Filing Date:
June 24, 2021
Export Citation:
Assignee:
JAPAN INSULATION CO LTD
International Classes:
E04B1/94; A62C3/16; H02G3/12
Attorney, Agent or Firm:
Saegusa International Patent Office
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