JP2002206669A - Piping structure for base isolation building and base isolation building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping structure for a base isolation building capable of facilitating maintenance and management such as inspection and cleaning. SOLUTION: In this piping structure for a base isolation building, one side of a pipe 1 having a plurality of flexible pipe materials 2, 2 and a pipe joint 3 connecting the flexible pipe materials to each other is connected to the equipment of a base isolation building, the other side of the pipe 1 is connected to an underground pipe on the foundation side, and the pipe 1 is supported between the base isolation building and the ground surface to be freely displaced. A pipe joint part including the vicinity of the pipe joint 3 is provided with an inspection hole 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping structure for a base-isolated building and a base-isolated building, and more particularly to a piping structure of equipment piping for water supply, cold / hot water, drainage, etc. in a base-isolated building, and this piping. It is related to a base-isolated building with a structure.

[0002]

2. Description of the Related Art A building such as a detached house is supported by a laminated rubber bearing, a rolling bearing, a sliding bearing, or the like so that it can be relatively displaced from a foundation, thereby preventing or relaxing seismic energy from acting on the building, and causing the building to collapse due to an earthquake. Attempts to avoid this have already been made in various ways, and buildings supported in this way are called seismic isolation buildings. In the facility piping for water supply, cold and hot water, drainage, etc. in the seismic isolation building as described above, one of the pipes connected to the seismic isolation building and the other connected to the foundation side is a form that can support the seismic isolation building, that is, Even if the building and the foundation are displaced relative to each other due to the earthquake, it is necessary to follow the relative displacement and prevent the pipe from being cracked or damaged.

Conventionally, as a piping structure in a seismic isolation building as described above, a seismic pipe described in JP-A-9-303616 or a seismic isolation building described in JP-A-2000-297879 has been used. Piping structures are known. Japanese Patent Application Laid-Open No. 9-303616 discloses that a flexible pipe having a predetermined length is connected and connected in a substantially right angle direction, and one end of the connected connected pipe is connected to an underground pipe.
The other end is connected to a supply pipe of a building to supply a fluid from the underground pipe into the building. In the above description, a gantry for supporting the connecting portion of the flexible tube material in a displaceable manner is provided, or the connecting portion is suspended by a wire or the like so that the connecting portion can move freely.

[0004] Japanese Patent Application Laid-Open No. 2000-297879 discloses a pipe for connecting a pipe connected to a base-isolated building on one side and a pipe connected to the foundation on the other side. In this case, a hanging member is suspended from the tube, and the intermediate portion of the flexible tube is suspended and supported by the hanging member.

[0005]

However, all of the above-mentioned prior arts can follow the relative displacement between the base-isolated building and the foundation due to the earthquake.
They did not consider the maintenance of piping such as inspection and cleaning.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and has a piping structure for a seismic isolation building which is easy to maintain such as inspection and cleaning, and a seismic isolation device having this piping structure. The purpose is to provide a building.

[0007]

According to the first aspect of the present invention,
One of the pipes having a plurality of flexible pipes and a pipe joint for connecting the plurality of flexible pipes to each other is connected to the equipment of the seismic isolation building, and the other of the pipes is buried underground on the foundation side. A pipe structure for a base-isolated building connected to a pipe, wherein the pipe is supported so as to be displaceable between the base-isolated building and a ground surface, and an inspection port is provided in a pipe joint portion including a vicinity of the pipe joint. It is characterized by having been done.

According to the invention of claim 2, one of the pipes provided with the flexible pipe is connected to the equipment of the seismic isolation building, the other of the pipe is connected to the underground pipe on the foundation side, and the pipe is isolated. A piping structure for a seismic isolation building supported displaceably between an earthquake building and a ground surface, wherein an inspection port is provided in the vicinity of a flexible tube, and a shaft center of the flexible tube and an inspection port are provided. The shaft core intersects at an obtuse angle.

According to a third aspect of the present invention, in the piping structure for a seismic isolation building according to the first or second aspect, the flexible tube located upstream or downstream of the flexible tube located upstream. An inspection port is provided on the downstream side of the pipe material.

According to a fourth aspect of the present invention, there is provided a seismic isolation building, wherein the piping structure for a seismic isolation building according to any one of the first to third aspects is provided.

In the present invention, the piping may be any of piping for supplying water, cold and hot water, gas, etc., and piping for drainage discharged from equipment in a building. Further, the pipe joint may be any of an elbow, a socket, a cheese, a cross joint, and the like.

(Operation) In the piping structure for a base-isolated building according to the first aspect, since the inspection port is provided in the pipe joint portion including the vicinity of the pipe joint, inspection and cleaning in the vicinity of the pipe joint portion can be performed. Maintenance is easy.

In the piping structure for a seismic isolation building according to the second aspect, the inspection port is provided near the flexible pipe, and the axis of the flexible pipe and the axis of the inspection port intersect at an obtuse angle. It is easy to insert a cleaning tool or the like into the flexible tubing, and inspection and cleaning of the flexible tubing becomes easy.

[0014] The piping structure for a seismic isolation building according to claim 3 further inspects the upstream side of the flexible tube located on the upstream side or the downstream side of the flexible tube located on the downstream side. Since the mouth is provided, maintenance and management such as inspection and cleaning of the flexible tubing are further facilitated.

According to the fourth aspect of the present invention, there is provided a base-isolated building.
Since the seismic isolation building piping structure described in any one of the above items is provided, the maintenance of the piping is easy.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 5 show an embodiment of the present invention, and FIGS. 1, 2 and 3 are perspective views each showing a main part of piping for a seismic isolation building, and FIGS. FIG. 2 is a perspective view showing a pipe mounting structure shown in FIG. 1. In the figure, reference numeral 1 denotes a pipe for a base-isolated building, and the pipe 1 for a base-isolated building is discharged from equipment (for example, a bathroom, a sink, a sink, etc.) installed in a base-isolated building (not shown). It is a pipe for drainage.

As shown in FIG. 1, the pipe 1 for a seismic isolation building connects two flexible pipes 2 and 2 (flexible pipes) and connects these two flexible pipes 2 and 2 to each other. A 90 ° elbow type pipe joint 3 is provided in the middle of the pipe, and one side (upstream side) of the pipe 1 is connected to equipment of a seismic isolation building (for example, a drain port of a bathroom). The other (downstream side) is connected to an underground drainage pipe on the foundation side, and is housed in the underfloor space of the seismic isolation building with its pipe axis oriented substantially horizontally.

In the vicinity of the elbow-type pipe joint 3 and the flexible pipe member 2, three inspection ports are respectively provided as shown in FIGS. In FIGS. 1 to 3, the inspection ports 3, 3A, 3B are all pipe joints 3, 3A, 3B.
It is for. In the specific example shown in FIG. 1, a socket 4 with an inspection port 41 is provided on the inflow side of the elbow type pipe joint 3, and this inspection port 41 intersects with the inflow side axis of the pipe joint 3 at an obtuse angle. Things. In the specific example shown in FIG.
An inspection port 31 is provided to project obliquely upward from a bent portion of the elbow type pipe joint 3A. In another specific example shown in FIG. 3, an inspection port 31B is provided which protrudes directly upward from a bent portion of the elbow type pipe joint 3B.

In the pipe 1 for a seismic isolation building shown in FIGS. 1 to 3, an inspection port 51 is further provided near the flexible pipe 2.
61 are provided. The axes of these inspection ports 51 and 61 both intersect with the axis of the flexible tube 2 at an obtuse angle.

A socket 5 having an inspection port 51 is connected to the upstream side of one flexible tube 2 located on the upstream side to provide the inspection port 51, and the other flexible tube 2 located on the downstream side is provided. The inspection port 61 is provided by connecting the socket 6 with the inspection port 61 to the downstream side of.

The piping 1 for a seismically isolated building constructed as described above.
Is displaceably supported between the base-isolated building and the ground surface. In the specific example shown in FIG. 4, one of the pipes 1 (upstream side) is fixed to a gantry 8 fixed to the base-isolated building side, and the other (downstream side) of the pipe 1 is fixed to a gantry 9 fixed to the ground surface. Have been. Then, a portion including the elbow-type pipe joint 3 and the two flexible pipes 2 and 2 on both sides thereof is disposed between the mounts 8 and 9, and a suspension 7 for expanding and contracting the elbow-type pipe joint 3 is used. The pipes 1 for the base-isolated building are displaceably supported between the base-isolated building and the ground surface by being suspended under the floor of the base-isolated building by wires or the like.

In the specific example shown in FIG. 5, one of the pipes 1 (upstream side) is fixed to the gantry 8 as in the specific example of FIG.
The other side (downstream side) of the pipe 1 is fixed to the gantry 9,
By supporting the elbow-type pipe joint 3 on a seismic isolation table 70 that is displaceable with respect to the ground surface, the piping 1 for the seismic isolation building is supported so as to be displaceable between the seismic isolation building and the ground surface. .

(Operation of the Embodiment) The piping structure for a base-isolated building according to the present embodiment includes the elbow-type pipe joint 3 (or 3A,
3B), the inspection port 41 (or 31A, 31B) is provided near the pipe joint 3 (or 3A, 3B).
Inspection and cleaning is possible, and maintenance is easy.

Further, inspection ports 51 and 61 are provided on the upstream side of the one flexible tube member 2 located on the upstream side or on the downstream side of the other flexible tube member 2 located on the downstream side. , And the flexible cores 2 and 2
And the shaft center of the pipe intersect at an obtuse angle, so that it is easy to inject high-pressure water or wash the inside of the pipe with a water-absorbing hose. In addition, it becomes easy to insert a cleaning tool such as a pipe brush into the flexible tube 2A. Accordingly, maintenance and management of the flexible tube 2 such as inspection and cleaning are further facilitated.

As a result of the above, "Japan Housing Performance Labeling Standards" in the "Act on the Promotion of Ensuring Quality of Houses, etc.""Considerations", you can obtain a class 3 of a detached house or apartment. In addition, the above-mentioned class 3 is described as "measures that take special consideration for facilitating maintenance and management, such as providing openings outside the dwelling units that can be cleaned, inspected and repaired".

FIG. 6 shows another embodiment of the present invention, and is a perspective view of a main part of a piping structure for a base-isolated building. The pipe 1A for a seismic isolation building in FIG. 6 is formed of a flexible tube material 2A including a bent portion, and one of the pipes 1A is connected to the equipment of the seismic isolation building, and the other of the pipe 1A is on the foundation side. It is connected to an underground pipe. At the lower part of the floor of the base-isolated building, a wire 7A is stretched along the lower surface of the floor in a state where both ends are supported, and the suspension 7 is engaged displaceably along the extending direction of the wire 7A.
B is suspended from the wire 7A, and the suspension 7
B supports a bent portion of the flexible tube 2A. In the bent portion of the flexible tube 2A, an inspection port 31C is provided.
An attached socket 3C is provided, and the bent portion axis of the flexible tube 2A and the axis of the inspection port 31C intersect at an obtuse angle.

(Operation of the Embodiment) The structure of the piping 1A for a base-isolated building according to the present embodiment is such that an inspection port 3 is provided in a flexible tube 2A.
1C is provided, and the axis of the bent portion of the flexible tube 2A and the axis of the inspection port 31C intersect at an obtuse angle, so that it is easy to insert a cleaning tool or the like into the bent portion of the flexible tube 2A. Inspection and cleaning of the flexible tube 2A becomes easy.

Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the above-described embodiments, and there may be design changes within the scope of the present invention. Are also included in the present invention. For example, in the first embodiment, the elbow type pipe joint 3 is used as the pipe joint, but a socket type, a cheese type, or a cross type pipe joint may be used. In the case of a socket-type fitting, two flexible tubing are connected, in the case of a cheese-type fitting, three flexible tubing are connected, and in the case of a cross-type fitting,
Four flexible tubes are connected.

[0029]

According to the present invention, inspection and cleaning of the pipe joint and the flexible tubing become possible, and maintenance and management become easy.

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention and is a perspective view showing a main part of piping for a seismic isolation building.

FIG. 2 is another example of the embodiment of the present invention, and is a perspective view showing a main part of piping for a seismic isolation building.

FIG. 3 is another example of the embodiment of the present invention, and is a perspective view showing a main part of piping for a seismic isolation building.

FIG. 4 is a perspective view showing a mounting structure of the pipe shown in FIG. 1;

FIG. 5 is a perspective view showing another mounting structure of the pipe shown in FIG. 1;

FIG. 6 is a perspective view of another embodiment of the present invention, showing a main part of piping for a seismic isolation building.

[Explanation of symbols]

1, 1A Seismic isolation building piping 2, 2A Flexible tubing 3, 3A, 3B Pipe joint 41, 51, 61, 31A, 31B, 31C Inspection port

Claims (4)

[Claims] 1. A pipe having a plurality of flexible pipes and a pipe joint for connecting the plurality of flexible pipes to one another is connected to equipment of a seismic isolation building, and the other of the pipes is a foundation. A pipe joint part connected to the underground pipe on the side, wherein the pipe is supported so as to be displaceable between the base isolated building and the ground surface, and a pipe joint portion including a vicinity of the pipe joint A piping structure for a base-isolated building, characterized by having an inspection port in the building. 2. One of the pipes provided with the flexible tubing is connected to the equipment of the seismic isolation building, and the other of the pipes is connected to the underground pipe on the foundation side, and the pipe is connected to the seismic isolation building and the ground surface. A seismic isolation building piping structure supported so that it can be displaced between the flexible pipes, wherein an inspection port is provided in the vicinity of the flexible tubing, and the axis of the flexible tubing and the axis of the inspection port have an obtuse angle. A piping structure for seismically isolated buildings characterized by crossover. 3. An inspection port is provided on an upstream side of the flexible tubing located on an upstream side or on a downstream side of the flexible tubing located on a downstream side.
Or the piping structure for seismic isolation buildings according to 2. 4. A seismic isolation building comprising the seismic isolation building piping structure according to claim 1.