| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire-extinguishing facility where piping construction is facilitated and simplified by integrating water supply piping into a steel material for composing the beam of a building. SOLUTION: An H-type steel 1 is a steel material for composing the beam of a building, and water supply piping 5 that is made of a steel pipe is integrated in the longitudinal direction of one end part of a flange 2. A connection member 7 is connected to an opening that is provided at the water supply piping 5, and the lower end part projects toward roof space from a ceiling slab 30. A header 15 has a plurality of connection ports 18 and is connected to a connection member 17, one end of a flexible pipe as a pipe having flexibility or a synthetic resin pipe 20 is connected to each of the connection ports 18 for providing between the ceiling slab 30 and a ceiling plate 31, and the other end of the resin pipe 20 is connected to a sprinkler head 26 that is a fire-extinguishing head being installed at a specific position of the ceiling plate 31 while the fire-extinguishing head faces the inside of a room. |
