JP3589860B2 - Drainage pipe construction method for seismically isolated buildings - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a method for constructing a drainage pipe for a base-isolated building in an intermediate layer in the base-isolated building.
[0002]
[Prior art]
Generally, the conventional drainage pipe construction method for a base-isolated building uses a base-isolation structure 5 in the middle layer of a building such as a high-rise apartment as shown in FIGS. A seismic isolation joint 7 was attached to the pipe 6 of the slab. As shown in FIG. 4, the seismic isolation joints 7 are installed at two places of the pipe 6 connected at right angles, and are set so as to absorb the vibration in the XY directions.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional drainage pipe construction method for seismically isolated buildings that connects seismic isolation joints to individual pipes as described above, it is necessary to carry out work to attach seismic isolation joints to all pipes such as plumbing pipes and gas pipes. , The work was complicated. In addition, there is a problem that the seismic isolation joint is expensive and construction cost increases.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a drainage pipe construction method for a base-isolated building which is easy in construction and has low drainage resistance, in view of the above-mentioned conventional disadvantages.
[0005]
[Means for Solving the Problems]
Seismic isolation building for water pipe construction method according to the present invention is a building provided with a seismic isolation device, the multiple water pipe that connects between hierarchies with a seismic isolation device with collecting in one place the set basins, The water distribution pipe is attached to a lid of a collecting box, and the lid is connected to a main body of the collecting box by expansion . Further, et click Spansion is characterized in that it has been constructed from soft synthetic resin having sealing property.
[0006]
As described above, the drainage pipe construction method for a seismic isolation building according to the present invention collects a plurality of drainage pipes that connect the stories provided with the seismic isolation devices in one collecting pit, and vibrates the collecting pit. The absorption expansion is provided, which facilitates construction and reduces pipeline resistance. In addition, the amplitude during an earthquake can be completely absorbed.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view showing an example of a drainage pipe construction method for a base-isolated building according to the present invention, and FIG. 2 is an overall perspective view showing a collecting box used in the drainage pipe construction method for the base-isolated building. Here, a seismic isolation device 12 is provided between the floor 10 and the floor 11. The seismic isolation device 12 is formed by laminating synthetic rubber and an iron plate to an appropriate thickness, and absorbs lateral shearing force.
[0008]
Pipes 13 a, 13 b, and 13 c for drainage and the like disposed on the floor 10 are collectively collected in a collecting box 14. The collecting box 14 is composed of a lid 15 and a main body 16. As shown in FIG. 1, an integrated pipe 13 b is attached to the lid 15, and the lid 15 and the main body 16 are sealed. Are connected by an expansion 17 made of a soft rigid resin or the like. The synthetic resin may be a vinyl chloride sheet or a synthetic rubber.
[0009]
In addition, an inspection port 15a is formed in the lid portion 15 of the collecting box 14, and the inside can be inspected from the inspection port 15a. Packing or the like is provided around the inspection lid provided at the inspection port 15a, and airtightness can be maintained.
[0010]
In this embodiment, the main body portion 16 of the collecting basin 14 is a bottomed square tube, and a large-diameter drain pipe 18 is connected to the center of the bottom. Further, the main body portion 16 is fixed to the floor surface 11. Furthermore, the inner bottom part 16a of the main body part 16 is inclined so as to become lower toward the center, so that drainage is easy to flow. The width of the collecting basin 14 is set to be equal to or larger than the maximum seismic isolation amount X. With this setting, the cluster 14 is not destroyed by the earthquake.
[0011]
As described above, according to the drainage pipe construction method for a seismic isolation building of the present invention, a plurality of drainage pipes are connected together at a single place and connected by a collecting pit, and vibration isolation is performed by expansion. There is no need to use seismic isolation joints for drainage pipes, which simplifies construction work. In addition, since the expansion has airtightness, it is possible to prevent odors and the like from leaking from the collecting box.
[0012]
In the above embodiment, the inner bottom portion 16a of the collecting basin 14 is inclined so as to become lower toward the center, and the drain is easy to flow. It may be a collective measure in which a spiral invert is formed. In such a configuration, there is no possibility that the drainage overflows efficiently. Further, the present invention is not limited to this, and the same effect can be obtained even if the outer shape of the collecting box is circular or elliptical.
[0013]
It should be noted that the present invention is not limited to the above embodiments, and various design changes can be made based on the technical idea of the present invention.
[0014]
【The invention's effect】
As described above in detail, according to the drainage pipe construction method for a base-isolated building according to the present invention, in a building provided with a base-isolation device, a plurality of drainage pipes connecting between the floors provided with the base-isolation device are provided. Since it collects in a single collecting pit and has an expansion that absorbs vibrations in the collecting pit, it is only necessary to use one collecting pit at the site where multiple seismic isolation joints were conventionally used, reducing construction costs Can do things. Further, the construction work is easy and the construction time can be shortened. Furthermore, since the wastewater is flown into a large drainage basin at a time, the drainage resistance of the falling material is reduced.
[0015]
Since the expansion is made of a soft synthetic resin having a sealing property, there is no possibility that odor or the like leaks. In addition, since the lid and the main body of the collecting box are connected by the expansion, the amplitude due to the earthquake can be perfectly absorbed in the three-dimensional directions of up, down, left, and right.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an example of a method for constructing a drainage pipe for a seismic isolation building of the present invention.
FIG. 2 is an overall perspective view showing a collecting box used in the drainage pipe construction method for the base-isolated building.
FIG. 3 is a longitudinal sectional view showing an example of a conventional drainage pipe construction method for a base-isolated building.
FIG. 4 is a perspective view showing an example of a seismic isolation joint used in a conventional drainage pipe construction method for a seismic isolation building.
[Explanation of symbols]
5 Seismic Isolation Structure 6 Piping 7 Seismic Isolation Joint 10, 11 Floor 12 Seismic Isolation Devices 13a-c Piping 14 Collecting Measuring 15 Cover 15a Inspection Port 16 Main Body 16a Inner Bottom 17 Expansion 18 Drain Pipe

Claims (2)

In buildings with a seismic isolation device, the multiple water pipe that connects between hierarchies with a seismic isolation device with collecting in one place the set basins, attaching the water pipe to the lid of the collection basins, lid The method of constructing a drain pipe for a base-isolated building, characterized in that the part is connected to the main part of the collecting basin by expansion . Et click Spansion is water pipe construction methods for seismic isolation building according to claim 1, characterized in that it is composed of soft synthetic resin having sealing property.

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