JP4334195B2 - Water supply / drainage pipe structure of apartment house - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an arrangement structure of water supply / drainage pipes in an apartment house such as an apartment or an apartment.
[0002]
[Prior art]
Apartment houses such as condominiums and apartments have a plurality of residential sections (residential spaces) on the upper and lower floors. Conventionally, the water supply and drainage of such apartment houses has a structure as shown in FIG.
[0003]
Reference numeral 1 denotes a concrete floor and ceiling that defines the upper-floor room (residence space) 2 and the lower-floor room 3, and reference numeral 4 denotes a water supply pipe (including a drain pipe) for each room (2, 3). Same; not shown). In addition, these water supply / drainage pipes may increase the number of pipes according to various purposes.
[0004]
Reference numeral 6 denotes a ceiling board of the lower floor living room 3, and 7 denotes a floor material of the upper floor living room 2. The vertical part (V) of the water supply / drainage pipe (4) penetrates the partitions (1) of the upper and lower floor rooms (2, 3) by using pipe holes established in the floor 1 made of concrete. The horizontal portion (Z) of the water supply / drainage pipe (4) used exclusively by the floor room 2 is arranged using the space above the ceiling board 6 of the room 3 on the lower floor.
[0005]
Use fire-resistant materials (metals, etc.) for the vertical part (V) of the water supply / drainage pipe (4) and part of the horizontal part (Z) of the water supply / drainage pipe (4) to prevent burning in the event of a fire. Is required by law. This is to prevent the flame from jumping to the upper floor room 2 through the water supply / drain pipe (4) when a fire breaks out from the lower floor room 3.
[0006]
[Problems to be solved by the invention]
By the way, such a conventional water supply / drainage pipe structure has the following problems.
The first is safety guarantees in the event of a fire in an apartment house. Certainly, in order to prevent burning in the event of a fire, it is obliged to use fire-resistant materials for the vertical part (V) of the water supply / drainage pipe (4) and the horizontal part (Z) of the water supply / drainage pipe (4). In general, for the purpose of reducing construction costs, a resin pipe (for example, a vinyl chloride pipe) is used for the horizontal portion (Z) of the water supply / drain pipe (4). This is because the current law requires fire resistance by a predetermined dimension from the vertical portion (V) of the water supply / drainage pipe (4), but the remaining part may use a resin pipe. .
[0007]
However, in such a structure, if the water supply / drainage pipe (Z part) on the back of the ceiling board is melted or burnt by flame or heat during a fire from the lower-floor room 3, the flame, hot air, or smoke is Follow the part (V) and continue to the upper floor. Even if a part of the water supply / drainage pipe (4) is made of a fire-resistant material, there is a possibility that the structure of the water supply / drainage pipe will cause damage in an actual fire.
[0008]
The second problem is the problem of sound during water supply and drainage. In the conventional water supply / drainage structure, the horizontal portion (Z) of the water supply / drainage pipe (4) of the upper floor living room 2 uses the space behind the ceiling board 6 of the lower floor living room 3, so The sound of water supply / drainage will be transmitted directly to the residents on the lower floor. Although there is a space partition called ceiling board 6, this lacks the ability to block sound.
[0009]
Considering these factors, the ceiling board 6 itself must be changed to a material with excellent fire resistance and high sound absorption in order to reduce the noise and safety in the event of maintaining the conventional water supply and drainage pipe structure. become. However, this not only increases the construction cost, but also creates new technically difficult problems such as the need to completely fill the gap between the adjacent ceiling boards 6.
[0010]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to guarantee the safety at the time of a fire in relation to the water supply / drainage pipe of an apartment house, and to eliminate the noise around the water that has to be accepted as unavoidable mutual resident.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the water supply / drainage pipe structure of the apartment house according to the present invention is provided with a common water supply / drainage pipe in the vertical direction (vertical direction) outside the living space (outside the defining wall), The living space and the upper-floor living space are completely blocked by the concrete floor ceiling. And, the water supply / drainage pipe part dedicated to each living space has its one end connected to the joint water supply / drainage pipe, and the horizontal part of the water supply / drainage pipe is laid on the floor ceiling of the concrete, Cover with a predetermined thickness by cellular concrete cast from above.
[0012]
[Action]
In the water supply / drainage pipe structure for an apartment house according to the present invention, the residential space on the lower floor and the residential space on the upper floor are completely blocked by a concrete floor ceiling. The meaning of completely shutting off means that the structure is such that no dedicated water supply / drainage pipe is provided in each living space.
[0013]
For this reason, the water supply / drainage pipe structure of the apartment house according to the present invention is provided with a common water supply / drainage pipe in the vertical direction (vertical direction) outside the living space (outside the defining wall), and one end of the water supply / drainage pipe portion dedicated to each living space. By connecting the department to the common water supply and drainage pipe, it will be possible to make free water supply and drainage at any time.
[0014]
According to such a structure, first, in the event of a fire on the lower floor, transmission of flames, hot air, smoke, etc. to the upper floor through the hole structure around the water supply / drainage pipe can be completely blocked. I can do it. Secondly, since the dedicated portion of the water supply / drainage in each room can be arranged under the floor of the room, for example, even when using the water supply / drainage system at midnight, the residents on the lower floor do not receive the sound of using the water supply. As a result, the sound of the water supply / drainage system in the apartment house, in particular, the problem of the water supply sound (water supply / drainage sound) that becomes a problem between the upper and lower floor rooms can be surely solved.
[0015]
Moreover, the water supply / drainage pipe structure of the apartment house which concerns on this invention coat | covers the exclusive part of the water supply / drainage of each living room, especially the horizontal part of a water supply / drainage pipe with foam concrete. The meaning of covering (buried) the water supply and drainage pipes with cellular concrete is not small.
[0016]
First, it is possible to reliably reduce the noise of using the water supply / drainage pipes in each room. Since the cellular concrete has a large amount of minute voids inside the concrete, the sound absorption efficiency is very good.
[0017]
Secondly, according to the water supply / drainage pipe embedded in the cellular concrete having a large amount of minute voids, the heat loss of the internal flowing water can be minimized. This expands the possibilities of cold water and hot water supply based on, for example, high quality equipment.
[0018]
Thirdly, the water supply / drainage pipe embedded in the cellular concrete does not diffuse moisture (water droplets) generated around the water supply / drainage pipe to the outside. In the conventional water supply and drainage pipe structure, the horizontal part of the water supply and drainage pipe is exposed in the space behind the ceiling, but with such a structure, the temperature difference between the water and hot water passing through the water supply and drainage pipe and the ambient temperature Due to the difference, a large amount of moisture was condensed around the water supply / drainage pipe. The condensed moisture is evaporated and dissipated in the air in the space behind the ceiling.
[0019]
Fourth, it eliminates the need for maintenance due to deterioration of water supply and drainage pipes. In the conventional water supply and drainage pipe structure, the horizontal part is exposed in the space behind the ceiling, so that the pipe constantly vibrates due to the flow of water, and the joint part of the pipe gradually loosens, eventually leading to the phenomenon of water leakage. . It takes 20 to 40 years to exhibit such a phenomenon. However, according to the structure of the present invention, the vibration of the pipe at the time of water supply and drainage is suppressed by the cellular concrete. No degradation occurs. Comparing the cost-effectiveness of the repair of the entire pipe and the new construction, it was apt to be desirable in the past to rebuild, but according to the water supply / drainage pipe structure according to the present invention, rebuilding is done even against the will of the residents. This eliminates the need to do so and ensures long-term reliability of the apartment house.
[0020]
Moisture evaporated from around the water supply / drainage pipe diffuses from the back of the ceiling and flows into the interior of the indentation and the room space, generating mold in the interior of the indentation, and appearing as condensation on the windows and ceiling of the room with low temperature. Sometimes this vicious circle is prominent in modern airtight houses. According to the present invention, excessive moisture diffusion is surely suppressed, so that the problem of mold generated in the intrusion and the problem of condensation in the room can be remarkably reduced. It is sufficient that the thickness of the cellular concrete is such that sound during water supply / drainage in the room can be prevented, for example, about 40 to 60 mm.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 illustrates a water supply / drainage pipe structure for an apartment house according to the present invention. 11 is a room on the upper floor, 12 is a room on the lower floor, 14 is a floor ceiling made of concrete that partitions the upper and lower rooms (11, 12), 15 is a ceiling board disposed in the ceiling portion of the room on the lower floor, 16 Is a ceiling hanging bracket for supporting the ceiling board 15. Reference numeral 17 denotes a space behind the ceiling.
[0022]
21 and 22 are the walls on the corridor side of the upper and lower floor rooms (11, 12). The walls 21 and 22 are preferably made of concrete blocks, for example, in order to improve sound insulation. Reference numeral 24 denotes a collective piping space provided outside the walls 21 and 22 (position opposite to the living room space), and reference numeral 25 denotes a common water supply / drainage pipe provided in the collective piping space 24. The common water supply / drainage pipe 25 is provided with a predetermined number according to the purpose, such as for water supply and for water discharge, but FIG. 1 illustrates only one of them (for water discharge).
[0023]
31 is a dedicated water supply pipe for the upper floor living room 11, and 35 is a dedicated drain pipe for the upper floor living room 11. A hot water supply pipe may be provided. In order to simplify the drawing, the hot water supply pipe is not shown. 32 is a water supply pipe body, and 33 is a heat insulating material (heat insulating material) that covers the water supply pipe body. The dedicated water supply / drainage pipe for the lower-floor room 12 is arranged in the same structure as the upper-floor room 11 in the lower-floor room 12 floor ceiling (14).
[0024]
41 is the cellular concrete layer which covers the horizontal parts 31Z and 35Z of the exclusive water supply / drain pipes (31, 35) of the living room 11 on the upper floor. Since the cellular concrete layer 41 serves as the floor surface (or floor surface foundation) of the upper floor living room 11, it is desirable that the entire floor surface be placed flat.
[0025]
31V and 35V are vertical portions of the dedicated water supply / drain pipes (31, 35) of the upper-floor living room 11. In accordance with the installation location of the water supply / drainage facilities such as kitchen, bathroom, washroom, etc., the dedicated water supply / drainage pipes (31, 35) are set up in the vertical direction at appropriate locations.
[0026]
45 is an outer wall of the apartment house, and 46 is a heat insulating material of the outer wall 45. The heat insulation structure of the outer wall may be internal heat insulation or external heat insulation. The outer wall 45 in FIG. 1 is not necessarily limited to reinforced concrete. A wall structure using a wooden structure, a heat insulating material panel, or another wall panel may be used. This is because the water supply / drainage structure according to the present invention exhibits the expected action and effect regardless of the structure (kind) of the outer wall 45.
[0027]
46 </ b> Z is a horizontal portion of the heat insulating material 46 that extends toward the living room along the upper surface and the lower surface of the floor ceiling 14. The horizontal portion 46Z is for blocking or reducing the influence on the living room (11, 12) of heat (cold air in winter, warm air in summer) transmitted to the floor and ceiling 14 through the outer wall 45. The dimension of the horizontal portion 46Z is preferably set to, for example, about 60 to 90 cm, and is preferably disposed so as to cover the entire floor ceiling 14 within this dimension range.
[0028]
The floor ceiling 14 is formed by placing slab concrete, for example. In this case, the thickness (vertical dimension) of the floor ceiling 14 is, for example, about 100 to 130 mm at the thin portion and about 130 to 160 mm at the thick portion. There is no problem in increasing the vertical dimension, but if it is less than 100 mm, problems such as sound insulation and structural strength are not preferable.
[0029]
It is desirable that the thickness of the cellular concrete layer 41 be at least a vertical dimension that can completely cover the horizontal portions 31Z, 35Z of the water supply / drain pipes (31, 35). Even if it is not completely covered, it does not disturb other people (lower-floor room 12), but in order to keep the room quiet, the horizontal sections 31Z and 35Z of the water supply and drain pipes (31 and 35) are completely It is because it is more preferable to embed it in.
[0030]
Therefore, according to the water supply / drainage pipe structure of the apartment house, the upper-floor room 11 and the lower-floor room 12 are completely blocked by the concrete floor ceiling 14, and the holes and pipes for water supply / drainage that penetrate the floor ceiling 14. Does not exist. Therefore, it is possible to completely block the firing through the holes and pipes around the water supply / drainage pipe in the event of a fire. It can prevent both burning and damage from the lower floor to the upper floor, and burning and damage from the upper floor to the lower floor. In addition, since the upper-floor room 11 and the lower-floor room 12 are completely cut off by the concrete ceiling 14, the problem of noise caused by the use of the water supply / drainage system does not occur at all.
[0031]
The water supply / drainage pipe structure of the apartment house according to the present invention does not merely block the upper and lower floors by the concrete floor ceiling 14. As a result of covering the exclusive horizontal part (31Z, 35Z) of the water supply and drainage with the porous cellular concrete layer 41, as already mentioned, the water supply / drainage sound in each room is reduced (silence guarantee), the heat loss rate is improved (water temperature Stability guarantee), prevention of evaporation of water droplets around the water supply / drainage pipe (prevention of condensation in the room), prevention of aging deterioration of pipe joints, and elimination of maintenance and rebuilding problems associated therewith Get the effect.
[0032]
In addition, as a result of providing a porous cellular concrete layer 41 having a predetermined thickness on the floor (14) of each living room (11, 12), the atmospheric temperature in the living room is stabilized over a long period of time by thermal storage of the micropores in the part. In addition, it is possible to keep the humidity in the room in a stable state by the intake / exhaust action (breathing action) of the micropores.
[0033]
Such stability of temperature and humidity, combined with the effect of preventing evaporation of water droplets around the water supply / drainage pipe, reliably reduces condensation in the house.
[0034]
The horizontal portions 31Z and 35Z of the water supply / drainage pipes (31, 35) may not be completely covered (embedded) with the cellular concrete layer 41. Even if the cellular concrete (41) is placed to such an extent that the movement of the horizontal portions 31Z, 35Z of the water supply / drainage pipes (31, 35) can be constrained, and a material excellent in sound insulation and heat insulation is laid thereon, it is almost the same. This is because an effect can be obtained.
[0035]
Further, the walls 21 and 22 on the corridor side of the outer walls (45) and the upper and lower floor rooms (11 and 12) may have any specific structure as long as they have fire resistance. The same applies to the floor ceiling 14. There is no difference in the basic effects even if the thick fire-resistant board is laid densely without gaps, not limited to concrete placement. Moreover, the present invention can be applied not only to reinforced concrete houses but also to so-called wooden houses such as partition structures on the upper and lower floors as long as the structure around the water supply / drainage pipe is the same.
[0036]
【The invention's effect】
As explained above, according to the water supply / drainage pipe structure of an apartment house according to the present invention, it is possible to prevent fire burning during a fire and to solve the problem of the use sound of the water supply / drainage equipment.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a water supply / drainage structure according to the present invention from the side.
FIG. 2 is a diagram illustrating a conventional water supply / drainage structure from the side.
[Explanation of symbols]
11 Upper Floor Room 12 Lower Floor Room 14 Floor Ceiling 15 Ceiling Board 16 Ceiling Suspension Bracket 17 Ceiling Suspension Space 21, 22 Corridor Wall 24 Collecting Piping Space 25 Joint Supply / Drain Pipe 31 (For Upper Floor Living Room ) Dedicated water supply pipe 32 Water supply pipe body 31Z, 35Z (Dedicated water supply / drainage pipe) Horizontal part 31V, 35V (Dedicated water supply / drainage pipe) Vertical part 33 Insulation (heat insulation)
35 Dedicated drain pipe 41 (for upper-floor room) Foam concrete layer 45 Outer wall 46 Insulation 46Z Horizontal part (of insulation 46)

Claims (1)

While installing a common water supply and drainage pipe in the vertical direction outside the living space,
The residential space on the lower floor and the residential space on the upper floor are completely blocked by the concrete floor ceiling,
The water supply and drainage pipes dedicated to each living space
One end of the pipe is connected to the joint water supply / drainage pipe, and a horizontal portion of the water supply / drainage pipe is laid on the floor ceiling of the concrete,
A water supply / drainage pipe structure for an apartment house, characterized in that a horizontal portion of the water supply / drainage pipe laid on a concrete floor ceiling is buried with a predetermined thickness by cellular concrete placed from above.

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