Title:
火煙遮断材、火煙遮断方法、耐火間仕切り構造、およびその形成方法
Document Type and Number:
Japanese Patent JP6902412
Kind Code:
B2
Abstract:
To provide a fire smoke cutoff member, a fire smoke cutoff method, a fire-resistant partition structure, and a construction method thereof capable of being easily installed at a wall body position arranged on a lower surface of a flat deck plate and cutting off a hollow part of a reinforcing steel rib arranged in the flat deck plate in a case of fire.SOLUTION: A construction method comprises: forming a cutout C to install a fire smoke cutoff member 100 cutting off a penetration surface of a hollow part 11c in a case of fire at the hollow part 11c of a reinforcing steel rib 11 where a wall body 50 is installed; fixing the fire smoke cutoff member 100 within the hollow part 11c through the cutout C; installing a horizontal member 51 for partitions at a lower surface of a ceiling surface to install the wall body 50; closing an opening formed between the horizontal member 51 for partitions and an irregularity surface of a deck plate 10 with a fire resistance member 60; and fixing the wall body 50 to the horizontal member 51 for partitions.SELECTED DRAWING: Figure 1
Inventors:
Yuji Hatanaka
Akio Okubo
Akio Okubo
Application Number:
JP2017128561A
Publication Date:
July 14, 2021
Filing Date:
June 30, 2017
Export Citation:
Assignee:
Rhombic Japan Co., Ltd.
International Classes:
E04B1/94; E04B2/74; E04B2/82; E04B9/00
Domestic Patent References:
| JP2002332707A | ||||
| JP9242216A | ||||
| JP48022930U | ||||
| JP2011162983A | ||||
| JP2001323579A | ||||
| JP2011026920A |
Foreign References:
| US5913788 |
Attorney, Agent or Firm:
Keisuke Komatsu