A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FIRE-SPREAD PREVENTION MECHANISM FOR DRAIN PIPE, AND METHOD TO CONFIGURE DRAIN PIPE WITH FIRE-SPREAD PREVENTION MECHANISM
PROBLEM TO BE SOLVED: To provide a fire-spread prevention mechanism for a drain pipe that prevents a flowing water sound in the drain pipe from propagating to a floor slab.SOLUTION: A fire-spread prevention mechanism for a drain pipe is fitted on a drain pipe P that includes an aggregate drain pipe P1 installed to pierce through a floor slab s and formed of a nonflammable material, and a vertical pipe P2 formed of a flammable material. The fire-spread prevention mechanism includes: an expansive material 1 fitted on an outer peripheral surface of the vertical pipe P2 at a location below a bottom end of the aggregate drain pipe P1, the expansive material expanding inward in a radial direction due to a flame heat when the vertical pipe P2 is burnt at a time of fire, for covering at least a part of a drain flow passage; and a sound insulation cover 2 formed of a fire-resisting material that absorbs sound and covering the expansive material 1 from outside in a radial direction.SELECTED DRAWING: Figure 1
【課題】排水管の流水音を床スラブに伝達させない、排水管の延焼防止機構を提供する。【解決手段】床スラブＳを貫通して設置され不燃性材料で形成された集合排水管Ｐ１と、可燃性材料で形成された立て管Ｐ２と、を備えた排水管Ｐに取り付けられる、排水管の延焼防止機構において、前記集合排水管Ｐ１の下端よりも下方の位置で、前記立て管Ｐ２の外周面に取り付けられ、火災時に前記立て管Ｐ２が焼損した場合、火災の熱により径内方向へと膨張して排水流路の少なくとも一部を覆う膨張材１と、吸音性を有する耐火素材で形成され、前記膨張材１を径外方向から覆う遮音カバー２と、を備える。【選択図】図１
FIRE-SPREAD PREVENTION MECHANISM FOR DRAIN PIPE, AND METHOD TO CONFIGURE DRAIN PIPE WITH FIRE-SPREAD PREVENTION MECHANISM
PROBLEM TO BE SOLVED: To provide a fire-spread prevention mechanism for a drain pipe that prevents a flowing water sound in the drain pipe from propagating to a floor slab.SOLUTION: A fire-spread prevention mechanism for a drain pipe is fitted on a drain pipe P that includes an aggregate drain pipe P1 installed to pierce through a floor slab s and formed of a nonflammable material, and a vertical pipe P2 formed of a flammable material. The fire-spread prevention mechanism includes: an expansive material 1 fitted on an outer peripheral surface of the vertical pipe P2 at a location below a bottom end of the aggregate drain pipe P1, the expansive material expanding inward in a radial direction due to a flame heat when the vertical pipe P2 is burnt at a time of fire, for covering at least a part of a drain flow passage; and a sound insulation cover 2 formed of a fire-resisting material that absorbs sound and covering the expansive material 1 from outside in a radial direction.SELECTED DRAWING: Figure 1
【課題】排水管の流水音を床スラブに伝達させない、排水管の延焼防止機構を提供する。【解決手段】床スラブＳを貫通して設置され不燃性材料で形成された集合排水管Ｐ１と、可燃性材料で形成された立て管Ｐ２と、を備えた排水管Ｐに取り付けられる、排水管の延焼防止機構において、前記集合排水管Ｐ１の下端よりも下方の位置で、前記立て管Ｐ２の外周面に取り付けられ、火災時に前記立て管Ｐ２が焼損した場合、火災の熱により径内方向へと膨張して排水流路の少なくとも一部を覆う膨張材１と、吸音性を有する耐火素材で形成され、前記膨張材１を径外方向から覆う遮音カバー２と、を備える。【選択図】図１
FIRE-SPREAD PREVENTION MECHANISM FOR DRAIN PIPE, AND METHOD TO CONFIGURE DRAIN PIPE WITH FIRE-SPREAD PREVENTION MECHANISM
排水管の延焼防止機構、及び、延焼防止機構付き排水管を構築する工法
HAGIMORI YUKIICHI (author) / KOGA SEIICHI (author)
2016-05-09
Patent
Electronic Resource
Japanese
A preventing fire spread between drain pipe of Apartment House
| European Patent Office | 2019
A preventing fire spread between drain pipe of Apartment House
| European Patent Office | 2022
A preventing fire spread between drain pipe of Apartment House
| European Patent Office | 2023
A preventing fire spread between drain pipe of Apartment House
| European Patent Office | 2022