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Title:
CONSTRUCTION STRUCTURE OF REPLACEMENT PIPE AND FLOOR SLAB PENETRATION PIPING MATERIAL USED FOR THE CONSTRUCTION STRUCTURE
Document Type and Number:
Japanese Patent JP2011257001
Kind Code:
A
Abstract:

To provide a construction structure of a replacement pipe, which reduces generation of noise, vibration and dust during construction when an existing pipe penetrating a floor slab is replaced with a new pipe, and which can easily secure fire protection in the floor slab penetrating part, and to provide a floor slab penetration piping material used for the construction structure.

A straight pipe part 22a, which is a part of the floor slab penetration piping material 2b and on which a fireproof thermal expansion material 3 is wound, is inserted into a through-hole H from the upper part of the through-hole H after coating the upper surface of the floor slab S with a sealing agent 5 at the position where the lower end surface of the socket 22b of the floor slab penetration piping material 2b faces, so as to surround the through-hole H, formed by pulling out the existing pipe, in the floor slab S. While receiving the socket 22a by the floor slab S with the sealing agent 5 tucked under the lower end surface of the socket 22b, the fireproof thermal expansion material 3 is sandwiched, around the entire outer periphery, between the outer peripheral surface of the straight pipe part 22a and the inner peripheral surface of the through-hole H.


Inventors:
ICHINOSAWA SATORU
UBAGAI TSUTOMU
KITAGAWA YOSHIAKI
TSUCHIDA YUKIHIRO
SAKAMOTO MASAKATSU
Application Number:
JP2011098023A
Publication Date:
December 22, 2011
Filing Date:
April 26, 2011
Export Citation:
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Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
F16L1/00; E04B5/48; F16L5/00
Domestic Patent References:
JP2001152501A2001-06-05
JP2008274639A2008-11-13
JP2001227083A2001-08-24
JP2003222271A2003-08-08
JP2010530945A2010-09-16
JP2009249937A2009-10-29
JP2005226725A2005-08-25
JP2006336798A2006-12-14
JPH1119242A1999-01-26
JP2009108939A2009-05-21
JP2011509728A2011-03-31
JPH04151086A1992-05-25
JPH07139004A1995-05-30
JP2002323177A2002-11-08
JP2004052881A2004-02-19
JP2005213853A2005-08-11
JP2007056537A2007-03-08
JP2007154566A2007-06-21
JP2009293692A2009-12-17
Foreign References:
WO2009000778A12008-12-31
US4424867A1984-01-10
Attorney, Agent or Firm:
Katsunori Sugimoto



 
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