JPH09221773A - Vessel having earthquake resistance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vessel which is excellent in earthquake resistance and waterproofness by placing concrete in a space whose shell area comprises a plurality of blocks and which is surrounded with a first side wall, a second side wall and a bulkhead of each block and forming a flange on the bulkhead. SOLUTION: A vessel 1 is formed with a shell which comprises 6 to 12 blocks 2a which are cylinder-shaped in their respective identical areas and fixed with each other and a cover on a disk fixedly mounted on the upper opening of the shell. The blocks 2a are formed with a first side wall W1 each of which is arranged on a concentric area and a second side wall W2 separated from the first side wall W1 and a bulkhead having a flange F which extends outside the second side wall W2 which is radially fixed on both sides of the first side wall W1 and the second side wall W2 where concrete K is placed into the space. The blocks 2a are joined, thereby constituting a cylindrical part C1 and an outside cylindrical part C2. It is, therefore, possible to embody excellent waterproofness since the blocks can be joined with each other easily.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a container having earthquake resistance. More specifically, the present invention relates to a container in which a body part having a substantially cylindrical shape and a lid fixed to the body part are composed of a plurality of blocks, and concrete is poured into the blocks.

[0002]

2. Description of the Related Art Regarding the structure of a water tank for fire protection (hereinafter referred to as a water tank) when used as a water tank for fire protection, the Ministry of Home Affairs, Fire and Disaster Management Agency stipulates standards for water supply for fire fighting. As the material of the aquarium, it has the required strength against load and deformation to meet such standards.
It is required to have durability and excellent watertightness,
Conventionally, reinforced concrete, prestressed concrete, steel or their composites have been used.

An example of such a conventional water tank is shown in FIG.

In the case of this water tank, a substantially cylindrical body portion 51 is composed of a plurality of blocks 51a made of reinforced concrete each having the same shape. Therefore, each block has a size that can be transported by a medium-sized truck, and there is an advantage that the transportation cost is low.

However, there is a drawback in that the following complicated work is involved during on-site assembly.

That is, the block 51a transported to the installation site of the water tank is joined on the site (ground) and further waterproofed to manufacture the body portion 51.

The joining process is performed by bolting the joining plate 52 to the outer surface of the block 51 between the adjacent blocks 51a.
Is temporarily fixed to the outer surface of the block 51a, the inner diameter of the body is measured, and it is confirmed that a predetermined dimension is obtained, and then the main tightening is required, which is complicated and requires skill. Moreover, because it is bolted to concrete,
There is a difficulty in earthquake resistance. The waterproofing includes (a) a step of performing a base treatment (application of a primer) on a waterproofing site,
(B) filling the joint with caulking agent, and (c)
It is a very complicated process since it comprises a step of injecting a urethane resin or the like into the joint portion, and it takes time to cure the caulking agent and also requires skill.

When the body portion 51 thus assembled is lifted by a crane without a bottom plate and is pivotally moved to a predetermined place, the body portion 51 excavates the ground and sinks to a predetermined depth. At this time, the body portion 51 is shaken and settles down, so that the body portion 51 receives an impact. Therefore, if the waterproofing is not sufficient, there is a problem that a gap is created at the joint.

An object of the present invention is to solve the above problems of the prior art, to provide a container having excellent earthquake resistance, easy and reliable assembly, and excellent waterproofness.

[0010]

A container according to the present invention has a body portion having a plurality of blocks each having the same partial cylindrical shape and fixed to each other, and is fixed to an upper opening of the body portion. A container having a disk-shaped lid, wherein the blocks are arranged concentrically with each other, a first side wall in contact with the contents, a second side wall separated from the first side wall, the first side wall, and Radially fixed to both ends of the second side wall,
It is characterized by comprising a partition wall having a flange portion extending outward from the second side wall, the first side wall, the second side wall, and concrete cast in a space closed by the partition wall.

The body portion is preferably composed of 6 to 12 blocks.

It is preferable that adjacent flanges of the plurality of blocks are fixed to each other by a bolt joint, and adjacent second side walls are welded to each other.

It is preferable that the adjacent flanges of the blocks 6 to 12 are fixed to each other by a bolt joint, and the adjacent second side walls are welded to each other.

It is preferable that the first side wall, the second side wall and the partition wall are made of steel.

The lid has a disk-shaped first plate forming a surface, a disk-shaped second plate forming a bottom surface, and one end fixed to the first plate to support the second plate, and the first plate. A plurality of partition walls arranged in parallel with each other between the first plate and the second plate, and a cylindrical side wall part having one end fixed to the peripheral edge of the first plate and the other end fixed to the second plate It is preferable that

[0016] It is preferable that concrete is placed inside a lid partitioned by the plurality of partition walls.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The container of the present invention comprises a plurality of blocks in a body portion, concrete is poured into a space surrounded by the first side wall, the second side wall and the partition wall, and further the partition wall is formed. Since it has a structure in which the flange is formed, the blocks are easily and reliably joined to each other, so that excellent waterproofness can be realized. Moreover, since it has the same weight as a conventional water tank, it can be easily buried in the ground.

[0018]

The container of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a body portion of a container according to an embodiment of the present invention.

The container 1 of the present embodiment has a substantially cylindrical body portion 2 each having the same partial cylindrical shape and consisting of eight blocks 2a fixed to each other.
And a disk-shaped lid 3 (see FIG. 4) fixed to the upper opening of the body portion 2 by welding.

The block 2a has a first side wall W1 arranged concentrically with each other and in contact with contents such as stored water, a second side wall W2 spaced from the first side wall W1, and the first side wall W2.
A partition wall P having flange portions F radially fixed to both ends of the side wall W1 and the second side wall W2 and extending to the outside of the second side wall W2, and closed by the first side wall W1, the second side wall W2 and the partition wall P. It consists of concrete K placed in the open space.

Therefore, when the eight blocks 2a are joined together, the eight first side walls W1 constitute the inner cylindrical portion C1 of the body portion 1, and the eight second side walls W2 are the outer cylindrical portions of the body portion 2. It constitutes the section C2. The number of blocks 2a is preferably 8 from the viewpoint of transportation convenience, but is not limited to 8 and may be 6 to 12 in consideration of the internal capacity of the container 1.

In the case of this embodiment, the thickness of the first side wall W1 is about 6 mm, and the thickness of the second side wall W2 is about 9 mm.

Further, in this embodiment, as the partition wall P, as shown in FIG. 2, a die steel P ₁ having an L-shaped cross section is preferably used. For the first side wall W1, the second side wall W2, and the partition wall P, a steel material (SS400) for general structure is preferably used.

Further, in the case of this embodiment, as shown in FIG. 3, in order to secure the strength of the block 2a in the radial direction,
A reinforcing member R is attached by welding between the first side wall W1 and the second side wall W2. Although the basic configuration of the body portion 1 is as described above, the body portion 1 needs to be submerged in the ground, and the body portion 1 can be smoothly penetrated into the ground. It is preferable to provide a sword-shaped member 10 on the lower part of 1 (see FIG. 4).

After the blocks are manufactured in the factory, they are transported to the installation site of the water tank and container and assembled at the site. At this time, adjacent flanges F of the adjacent blocks 2a are joined by a bolt joint B. When the joining of the eight blocks 2a is completed, next, the inner cylindrical portion C
When the joint portions 1 are weld-joined, the body portion 1 as shown in FIG. 1 is obtained.

The body portion 2 configured as described above sinks the body portion 2 to a predetermined depth while excavating the ground. When it reaches a predetermined depth, concrete is poured to form the bottom plate 11 of the water tank and the container (see FIG. 4).

After that, the lid 3 is fixed to the body portion 2 by welding and the excavated earth and sand is backfilled, and the burial in the ground is completed.

The lid 3 has a disk-shaped first portion constituting the surface.
The plate 4 and the disk-shaped second plate 5 constituting the bottom surface
A partition wall 5a having one end fixed to the first plate 4, supporting the second plate 5, and having a plurality of partition walls 5a arranged in parallel between the first plate 4 and the second plate 5; One plate 4 has a cylindrical side wall portion 6 having one end fixed to the peripheral portion and the other end fixed to the second plate 5 (see FIG. 5).

In this embodiment, the number of partition walls 5a is 1.
It is one. Therefore, the lid 3 is divided into 12 spaces, and the concrete K is poured in the 12 spaces.

[0031]

EFFECTS OF THE INVENTION Since the side wall of the container of the present invention is made of steel, it is extremely unlikely to be damaged during transportation, assembly and burial as compared with concrete. In addition, since the body portion can be divided into a plurality of blocks to be manufactured, the standardization can be achieved and the manufacturing cost can be reduced. In addition, since it can be transported in block units, transportation costs can be reduced.

Furthermore, since the container of the present invention uses the steel material in a place where stress is generated by an external force such as earth pressure after being buried in the ground, it is extremely strong against local stress and local. Degradation of the entire container and aquarium due to displacement,
Has excellent resistance to brittle fracture. Furthermore, the blocks are welded to each other, so that they have excellent waterproofness. Therefore, it fully complies with the regulations of the Fire Department of the Ministry of Home Affairs, Fire Department.

Furthermore, since concrete is placed in each block, it is possible to secure a weight almost equal to that of a conventional reinforced concrete water tank, so that sinking work into the ground can be facilitated.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a body part of a container and a water tank of the present invention.

FIG. 2 is an enlarged view of a main part of a body portion of FIG.

3 is a cross-sectional explanatory view of a block of a body portion of FIG.

FIG. 4 is a side view of the container of the present invention.

FIG. 5 is a cross-sectional view of the lid of the container of the present invention.

FIG. 6 is an explanatory diagram showing an example of a conventional container.

[Explanation of symbols]

1 Container 2 Body part 2a Block 3 Lid 4 1st plate 5 2nd plate 6 Side wall part B Bolt joint F Flange part K Concrete P Partition wall P ₁ L-shaped steel W 1 1st side wall W 2 2nd side wall

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location E04H 7/18 301

Claims (8)

[Claims] 1. A container comprising a body portion having a plurality of identical cylindrical shapes, each body fixed to each other, and a disk-shaped lid fixed to an upper opening of the body portion. And the blocks are radially fixed to the first side wall and the second side wall, which are arranged concentrically with each other and are in contact with the content, the second side wall separated from the first side wall, and the first side wall and the second side wall. A container comprising a partition wall having a flange portion extending outward from the second sidewall, the first sidewall, the second sidewall, and concrete poured into a space closed by the partition wall. . 2. The container according to claim 1, wherein the body portion is composed of 6 to 12 blocks. 3. The container according to claim 1, wherein adjacent flanges of the plurality of blocks are fixed to each other by a bolt joint, and adjacent second side walls are welded to each other. 4. The container according to claim 1, wherein the adjacent flanges of the blocks 6 to 12 are fixed to each other by a bolt joint, and the adjacent second side walls are welded to each other. 5. The container according to claim 1, wherein the first side wall, the second side wall and the partition wall are made of steel. 6. The disc-shaped first lid constitutes a surface of the lid.
One end is fixed to the plate, the disk-shaped second plate that constitutes the bottom surface, and the first plate, supports the second plate, and a plurality of them are arranged in parallel between the first plate and the second plate. 5. A partition wall, and a cylindrical side wall portion, one end of which is fixed to the peripheral portion of the first plate and the other end of which is fixed to the second plate, according to claim 2, 3 or 4. container. 7. The fire protection water tank according to claim 6, wherein the first plate, the second plate, the partition wall and the side wall portion are made of steel. 8. The container according to claim 6, wherein concrete is placed inside a lid partitioned by the plurality of partition walls.