Container Building

The integration of a twist-lock mechanism with pre-embedded anchors and optional base plates and inclined surfaces addresses the structural weakness of existing container buildings, ensuring firm fixation and compliance with building standards.

JP7806741B2Active Publication Date: 2026-01-27JFE STEEL CORP
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Patent Information

Application Number
JP2023033064
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-03-03
Publication Date
2026-01-27
Estimated Expiration
2043-03-03

AI Technical Summary

Technical Problem

Existing container buildings do not meet the structural strength requirements of the Building Standards Act due to the use of separate fastening devices for securing the container and the base to the ground, leading to concerns about firm fixation.

Method used

A connecting structure that integrates a twist-lock mechanism with an anchor pre-embedded in the foundation, ensuring the container-style structure is firmly fixed by embedding fastening devices at the corners, with optional base plates and inclined surfaces to prevent corrosion and adjust support heights.

Benefits of technology

The solution provides a robust and secure connection of the container to the foundation, meeting structural standards while allowing easy installation and disassembly, and accommodating power line routing and structural stability.

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Abstract

To provide a container building with a container style structure being firmly fixed to a foundation.SOLUTION: As a coupling structure 6 for coupling a container style structure 1 to a foundation 2, a tightening device 8 of a twist lock mechanism is integrally fixed to an upper end of an anchor 7 embedded in a column base 3 (foundation 2), and thus it is possible to firmly fix the structure 1 to the foundation 2.SELECTED DRAWING: Figure 8
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Description

[Technical Field]

[0001] The present invention relates to container buildings, and more particularly to container buildings in which a container-style structure is connected to a foundation by a connecting structure. [Background technology]

[0002] An example of such a container building is described in Patent Document 1 below. This container building is constructed as a mobile coin laundry, utilizing an existing shipping container and installing the necessary equipment for the coin laundry inside the container. This container-style structure is fixed to the ground via a base. Twist-lock mechanism fastening devices are provided on the top surface of the base at positions facing each of the four corners of the bottom surface of the container-style structure. This twist-lock mechanism fastening device is commonly used, for example, to fasten shipping containers to trailers. After inserting this fastening device into the fastening hole, rotating the upper rotating body prevents it from coming out of the fastening hole. The rotating body is rotated by turning a handle provided at the bottom of the fastening device. The base is fixed to the ground before the container-style structure is connected. If the ground is concrete, anchors are driven into mounting holes provided in the base to secure the base to the ground. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-138042 Summary of the Invention [Problem to be solved by the invention]

[0004] The container building described in Patent Document 1 uses a base to secure the container to the ground, but because the fastening device that secures the container and the component that secures the base to the ground are not the same, it does not meet the requirements for firm fastening to the foundation set forth in the Building Standards Act, raising concerns about structural strength. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to provide a container building in which a container-style structure is firmly fixed to a foundation. [Means for solving the problem]

[0005] In order to achieve the above-mentioned object, one embodiment of the container building of the present invention is a container building in which a container-style structure is connected to a foundation by a connecting structure, and the connecting structure is summarized as comprising an anchor that is pre-embedded in the foundation, and a twist lock mechanism fastening device that is fixed integrally with the upper end of the anchor and inserted into each connecting hole provided at the four corners of the underside of the structure, and then the upper rotating body is rotated so that it cannot come out of the connecting hole.

[0006] In a further aspect of the present invention, the upper surface of the foundation around the fastening device is inclined so as to become lower as it goes away from the fastening device. A further aspect of the present invention is characterized in that the fastening device is fixed to the upper end of the anchor via a base plate. A further aspect of the present invention is characterized in that a pedestal of a predetermined height is provided on the foundation at a position opposite the connecting hole, and the anchor is pre-embedded in the upper end of the pedestal. A further aspect of the present invention is characterized in that an auxiliary pedestal of a predetermined height is provided on the foundation at a position other than the position facing the connecting hole and facing the underside of the structure, and a leveling block that supports the underside of the structure and has an adjustable height for the support surface is arranged on the upper end surface of the auxiliary pedestal. [Effects of the Invention]

[0007] According to the container building of the present invention, a connecting structure for connecting a container-style structure to a foundation is provided in which a twist-lock mechanism tightening device is integrally fixed to the upper end of an anchor buried in the foundation, thereby enabling the structure to be firmly fixed to the foundation. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a first embodiment of the container building of the present invention. [Figure 2] FIG. 2 is a perspective view of a connection structure applied to the container building of FIG. 1. [Figure 3] 3 is a cross-sectional view of the coupling structure of FIG. 2 installed on the foundation of FIG. 1. [Figure 4] 3 is an explanatory diagram of a fastening device used in the connecting structure of FIG. 2. [Figure 5] FIG. 2 is an explanatory diagram of the construction process of the container building in FIG. 1. [Figure 6] FIG. 1 is a schematic diagram showing a second embodiment of the container building of the present invention. [Figure 7] 7 is a cross-sectional view of the connecting structure of FIG. 2 installed on the foundation (base) of FIG. 6. [Figure 8] FIG. 7 is an explanatory diagram of the construction process of the container building in FIG. 6. [Figure 9] FIG. 8 is a perspective view showing a modified example of the connecting structure installed on the column base of FIG. [Figure 10] FIG. 10 is a perspective view of the connecting structure of FIG. 9 before the fastening device is fixed. [Figure 11] FIG. 10 is a cross-sectional view of FIG. [Figure 12] FIG. 10 is a perspective view showing a modified example of the column base (foundation) of FIG. [Figure 13] FIG. 13 is a cross-sectional view of FIG. 12. [Figure 14] FIG. 10 is an explanatory diagram of the construction process showing the third embodiment of the container building of the present invention. [Figure 15] FIG. 15 is a perspective view of a leveling block disposed on the auxiliary column base of FIG. 14. DETAILED DESCRIPTION OF THE INVENTION

[0009] Below, embodiments of the container building of the present invention will be described in detail with reference to the drawings. The embodiments shown below are examples of devices and methods for embodying the technical concept of the present invention, and the technical concept of the present invention does not limit the materials, shapes, structures, arrangements, etc. of the components to the following embodiments. Furthermore, the drawings are schematic. Therefore, it should be noted that the relationship and ratio between thickness and planar dimensions differ from the actual ones, and the drawings also contain parts where the relationship and ratio of dimensions differ from each other.

[0010] FIG. 1 is a perspective view showing the schematic configuration of a first embodiment of a container building, constructed, for example, as an electrical room in a steelworks. The container-style structure 1 in this container building uses, for example, a shipping container, and the shipping container can be a new one or a used one. A container-style structure 1 that imitates a shipping container may also be used. The necessary equipment and functions for an electrical room, the structure and modifications of the container-style structure 1 itself, and ancillary equipment are not relevant to the present invention, so detailed explanations thereof will be omitted. Furthermore, the use of the container-style structure 1 is not limited to an electrical room.

[0011] Because this structure 1 uses a shipping container, its dimensions are approximately 6 m (or 12 m) in length, 2.4 m in width, and 2.9 m in height. Furthermore, the materials and building conformity of this shipping container structure 1 must comply with the Building Standards Act and the Japanese Industrial Standards (JIS). The four corners of the underside of this structure 1 are provided with connection holes 4 for securing the shipping container to, for example, a trailer or to a ship's hull during maritime transport (see Figure 5, etc.). These connection holes 4 are sized to allow the upper part of a twist lock mechanism (described later) to pass through, and a hollow portion is formed above them. These connection holes 4 generally comply with ISO 1161.

[0012] This structure 1 is fixed to a rectangular, thick plate-shaped foundation 2, the size of which is approximately the same as the underside of the structure 1. The structure of the foundation 2 itself and the structure for fastening it to the ground are unrelated to the present invention, and therefore will not be described in detail here. Connection structures 6 are fixed to the four corners of the foundation 2, facing the connection holes 4 on the underside of the structure 1. FIG. 2 is a perspective view of the connection structure 6 of FIG. 1 before installation. This connection structure 6 before installation comprises anchors 7, which are installed at the bottom and embedded in the concrete of the foundation 2, and fastening devices 8, which are integrally fastened to the upper ends of the anchors 7. The fastening devices 8 are welded and fixed to the upper ends of the anchors 7. FIG. 3 is a cross-sectional view of the connection structure 6 of FIG. 2 installed on the foundation 2 of FIG. 1. In this example, the upper ends of the anchors 7, i.e., the lower surfaces of the fastening devices 8, are positioned so as to coincide with the upper surface of the foundation 2. Although the anchors 7 shown in the figure are U-shaped, straight deformed steel bars of a predetermined length can also be used as anchors 7.

[0013] Figure 4 is an explanatory diagram of the fastening device 8 used in the connecting structure 6 of Figure 2. This fastening device 8 is a general-purpose product that is commonly used to secure transport containers to trailers or to the hull of a ship during marine transport. This fastening device 8 is configured with a mechanism generally called a twist lock. This fastening device 8 is configured with an upper insertion part 10 that is inserted into a connecting hole 4 provided on the underside of the container-style structure 1, and a lower base part 11 that supports this insertion part 10.

[0014] As is clear from Figures 4a and 4b, the insertion section 10 further comprises an upper rotating body 12 and a lower fitting section 13. The cross-sectional shape of the fitting section 13 has two flat plane sections formed in opposing positions and a curved section consisting of an arc-shaped surface connecting both ends of the two flat surfaces. The cross-sectional shape of this fitting section 13 is approximately the same shape as the connecting hole 4 of the structure 1, and therefore the outer surface of the fitting section 13 fits into the inner surface of the connecting hole 4. The cross-sectional shape of the fitting section 13 of the rotating body 12 gradually tapers upward. In addition, a shaft (not shown) extending downward from the rotating body 12 is rotatably inserted into the base section 11.

[0015] The base 11 has a generally cylindrical shape, and the upper surface of the base 11 extends radially outward beyond the fitting portion 13. Therefore, when the insertion portion 10 of the fastening device 8 is inserted into the connecting hole 4 of the structure 1, the upper surface of the base 11 supports the underside of the structure 1. A hollow portion is provided inside the base 11, and a shaft portion extending downward from the rotating body 12 protrudes into this hollow portion. The hollow portion opens into the outer peripheral surface of the base 11, and the handle 14 is inserted into the hollow portion from the outside of the side of the base 11 through this opening, and the tip of the handle 14 inside the hollow portion is connected to the shaft portion of the rotating body 12.

[0016] Therefore, when the handle 14 is rotated horizontally from the state of Fig. 4a to the state of Fig. 4b, or vice versa, the rotating body 12 is rotated. As can be inferred from the figures, Fig. 4a shows the state in which the insertion part 10 is inserted into the connecting hole 4 on the underside of the structure 1, and Fig. 4b shows the state in which the insertion part 10 is inserted into the connecting hole 4 and then the rotating body 12 is rotated so that it cannot be removed from the connecting hole 4. Therefore, when the insertion part 10 of the fastening device 8 is inserted into the connecting hole 4 of the structure 1 in the state of Fig. 4a, and then the handle 14 is rotated to the state of Fig. 4b, the structure 1 and the fastening device 8 (= connecting structure 6) are connected.

[0017] Figure 5 is an explanatory diagram of the construction process for the container building of Figure 1, showing the state in which the container-style structure 1 is being lowered onto the foundation 2. Prior to this, the foundation 2 is constructed at the construction location of the container building, and the anchors 7 of the connecting structure 6 are embedded in the concrete at positions corresponding to the connecting holes 4 of the structure 1, and the connecting structure 6 is fixed so that the fastening devices 8 are located on the top surface of the foundation 2. Note that if there is a risk that the anchors 7, i.e., the connecting structure 6, may move due to the flow energy of the concrete when the concrete is poured, it is advisable to position the fastening devices 8 using a separate positioning means, such as a wire.

[0018] Once the foundation 2 is complete, the container-style structure 1 is lifted using a crane or the like, and then lowered so that the connecting holes 4 on the underside face the connecting structure 6. Once the insertion portions 10 of the fastening devices 8 are inserted into each of the connecting holes 4 of the structure 1, the handles 14 of each fastening device 8 are rotated to rotate the rotating bodies 12. This prevents the rotating bodies 12 from coming out of the connecting holes 4, and the structure 1 is connected and fixed to the foundation 2. At this time, the fastening devices 8 are fixed integrally with the anchors 7 embedded in the foundation 2 at the top ends thereof, so the structure 1 is firmly fixed to the foundation 2.

[0019] As described above, in this embodiment, the connecting structure 6 for connecting the container-style structure 1 to the foundation 2 includes a fastening device 8 with a twist lock mechanism integrally fixed to the upper end of an anchor 7 buried in the foundation 2, so that the structure 1 can be firmly fixed to the foundation 2. Furthermore, after inserting the insertion portion 10 of the fastening device 8 into the connecting hole 4 of the structure 1, the structure 1 can be connected to the foundation 2 simply by rotating the handle 14 to rotate the rotating body 12. Therefore, the container-style structure 1 can be easily fixed to the foundation 2 to construct a container building, and the effort and time required to release the connection and move the structure 1 can be reduced.

[0020] 6 is a perspective view showing the schematic configuration of a second embodiment of a container building, which, like the first embodiment, is constructed as an electrical room in a steelworks. In this embodiment, the column base 3 is fixed integrally with the foundation 2 at the position where the connecting structure 6 was fixed in the first embodiment, i.e., at the position where the connecting hole 4 is provided on the underside of the container-style structure 1. Therefore, in this embodiment, the connecting structure 6 is fixed to the upper end of the column base 3 constructed as the foundation 2. Note that the structure and method for fixing the column base 3 integrally with the foundation 2 are unrelated to the present invention, and therefore a detailed description thereof will be omitted.

[0021] The connecting structure 6 of this embodiment is similar to that of the first embodiment shown in FIG. 2. FIG. 7 is a cross-sectional view of the connecting structure 6 of FIG. 2 installed on the column base 3 (foundation 2) of FIG. 6. In this example, the upper end of the anchor 7, i.e., the underside of the fastening device 8, is arranged so as to coincide with the upper surface of the column base 3. FIG. 8 is an explanatory diagram of the construction process of the container building of FIG. 6, showing the container-style structure 1 being lowered onto the column base 3. Prior to this, the foundation 2 is constructed together with the column base 3 at the construction location of the container building. The anchors 7 of the connecting structure 6 are embedded in the concrete of the column base 3 at positions corresponding to the connecting holes 4 of the structure 1, and the connecting structure 6 is fixed so that the fastening device 8 is located on the upper surface of the column base 3. Note that by setting the height (inner height) of the column base 3 to 1.4 m or less, the concrete building will not be considered a two-story structure.

[0022] Once the foundation 2 is completed together with the column pedestals 3, the container-style structure 1 is lifted using a crane or the like, and then lowered so that the connecting holes 4 on the underside face the connecting structures 6 on the column pedestals 3. Once the insertion portions 10 of the fastening devices 8 are inserted into the connecting holes 4 of the structure 1, the handles 14 of the fastening devices 8 are rotated to rotate the rotating bodies 12. This prevents the rotating bodies 12 from coming out of the connecting holes 4, and the structure 1 is connected and fixed to the column pedestals 3 of the foundation 2. At this time, the fastening devices 8 are fixed integrally to the upper ends of the anchors 7 embedded in the upper ends of the column pedestals 3, so the structure 1 is firmly fixed to the column pedestals 3. In addition, because a space is formed below the structure 1, power lines can be routed from the underside of the container building to the interior through this space, which is particularly useful in electrical rooms, substation rooms, and communication-related equipment rooms.

[0023] In this embodiment, a column base 3 of a predetermined height is provided on the foundation 2 at a position facing the connecting hole 4 of the container-style structure 1, and the anchor 7 of the connecting structure 6 is buried in the upper end of the column base 3. Therefore, power lines and the like can be brought inside from the underside of the structure 1 connected and fixed on the column base 3, increasing the usefulness of the container building.

[0024] FIG. 9 is a perspective view showing a modified example of the connecting structure 6 installed on the column base 3 of FIG. 7 according to the second embodiment, and FIG. 10 is a cross-sectional view of FIG. 9. In this embodiment, a base plate (base board) 9 is interposed between the anchor 7 and the fastening device 8. That is, the base plate 9 is welded and fixed to the upper end of the anchor 7, and the fastening device 8 is welded and fixed to the upper surface of the base plate 9. The upper surface of the base plate 9 is set in a position that protrudes at least from the upper surface of the column base 3. The base plate 9 and the fastening device 8 may be welded and fixed in advance before the anchor 7 is embedded. Alternatively, as shown in FIG. 11, the base plate 9 and the fastening device 8 may be separate bodies, and the fastening device 8 may be welded and fixed to the base plate 9 after the anchor 7 is embedded. As mentioned above, there is a risk that the anchor 7 may move due to the flow energy of the concrete when concrete is poured. Therefore, by welding the fastening device 8 to the base plate 9 in the correct position after the concrete is poured and the anchor 7 is embedded, it is possible to compensate for the movement of the anchor 7 when the concrete is poured.

[0025] In this way, in this embodiment, by interposing the base plate 9 between the anchor 7 and the fastening device 8, movement of the anchor 7 during concrete pouring can be compensated for and the fastening device 8 can be positioned in the correct position.

[0026] FIG. 12 is a perspective view showing a modified example of the column base 3 (foundation 2) of FIG. 9 , and FIG. 13 is a cross-sectional view of FIG. 12 . In this embodiment, the connecting structure 6 of the container-style structure 1 is that shown in FIG. 11 . In this embodiment, the top surface of the column base 3 is a truncated pyramidal cone surface, which is inclined so that it becomes lower as it moves away from the fastening device 8. Generally, the base plate 9 and the fastening device 8 are made of steel, and there is a risk of corrosion if water (rainwater, etc.) accumulates around them. Therefore, by inclining the top surface of the column base 3 so that it becomes lower as it moves away from the fastening device 8, it is possible to prevent water from accumulating around the base plate 9 and the fastening device 8, thereby preventing their corrosion. In this embodiment, the top surface of the column base 3 is inclined so that it becomes lower as it moves away from the fastening device 8. However, the same applies when the fastening device 8 is provided on the top surface of the foundation 2. In this case, it is sufficient that the top surface of the foundation 2 around the fastening device 8 is inclined so that it becomes lower as it moves away from the fastening device 8. The inclined surface may be a pyramidal surface such as a truncated cone or a polygonal truncated cone, in addition to a pyramidal surface such as a truncated cone.

[0027] In this way, in this embodiment, the upper surface of the foundation 2 (column base 3) around the fastening device 8 is sloped so that it becomes lower as it moves away from the fastening device 8, thereby preventing corrosion of the fastening device 8, base plate 9, etc.

[0028] FIG. 14 is an explanatory diagram of the construction process for a third embodiment of a container building. In this embodiment, a container-style structure 1 (same width and height as in the first embodiment) with a length of approximately 12 m is used. In this embodiment, the connection structures 6 between the pedestals 3 (foundation 2) at the four corners of the underside of the container-style structure 1 are the same as those in the second embodiment shown in FIG. 6 or FIG. 8. In this embodiment, auxiliary pedestals 5 are erected on the foundation 2 to support the underside of the structure 1 at positions different from the four corners of the underside where the connection holes 4 of the structure 1 are provided. Specifically, the auxiliary pedestals 5 are erected in the longitudinal center of the widthwise end of the container-style structure 1. Furthermore, leveling blocks 15 are arranged on the upper end surfaces of the auxiliary pedestals 5, which support the underside of the structure 1 and allow the height of the support surface 16 to be adjusted.

[0029] FIG. 15 shows an example of a leveling block 15. This leveling block 15 is a general-purpose block. The height of the support surface 16, which is the upper surface of the upper wedge 17, is adjusted by moving the stacked wedges 17, 18 with a screw 19. Specifically, the lower surface of the lower wedge 18 and the upper surface of the upper wedge 17 are both horizontal, and the joint surface between them is smoothly inclined. In this example, the lower wedge 18 is moved in the inclined direction of the inclined surface by the thrust of the screw 19, thereby changing the position of the inclined surface of the upper wedge 17 in the vertical direction, thereby changing the height of the support surface 16, which is the upper surface of the upper wedge 17. Because the container-style structure 1 of this embodiment is long, simply supporting the four corners of the underside would cause the longitudinal center to bend downward. Because the structure 1 of this embodiment is used as an electrical room, it is not desirable for the longitudinal center of the building to be low. Therefore, the structure 1 is supported by a leveling block 15 on an auxiliary column 5 provided in the longitudinal center of the underside of the structure 1, and the height of the center is kept equal to that of the other parts.

[0030] Thus, in this embodiment, auxiliary pedestals 5 of a predetermined height are provided on the foundation 2 at positions other than those facing the connecting holes 4 on the underside of the structure 1 and at positions facing the underside of the structure 1. Then, leveling blocks 15 that support the underside of the structure 1 and have an adjustable height support surface 16 are arranged on the upper end surfaces of the auxiliary pedestals 5. This makes it possible to support the longitudinal center of a long container-style structure 1, for example, and to correct deflection to maintain a constant height.

[0031] Although the container building according to the embodiment has been described above, the present invention is not limited to the configuration described in the above embodiment, and various modifications are possible within the scope of the gist of the present invention. For example, in the above embodiment, the auxiliary column bases 5 and leveling blocks 15 that support the underside of the container-style structure 1 are provided only at the center of the structure 1 in the longitudinal direction, but they may be provided at any location on the foundation 2 as long as they are capable of supporting the underside of the structure 1. [Explanation of symbols]

[0032] 1 structure 2 Basics 3 Pillar base 4 Connection holes 5 Auxiliary column base 6 Connection structure 7. Anchor 8 Fastening device 9 Base Plate 12 Rotating body 15 Leveling Blocks 16 Support surface

Claims

1. A container building in which a container-style structure is connected to a foundation by a connecting structure, The connecting structure comprises an anchor pre-embedded in the foundation, and a twist lock mechanism tightening device that is fixed integrally with the anchor to the upper end of the anchor and is inserted into each connecting hole provided at the four corners of the underside of the structure, and then the upper rotating body rotates so that it cannot come out of the connecting hole, and a column base of a predetermined height is provided on the foundation at a position opposite the connecting hole, and the anchor is pre-embedded in the upper end of the column base, a container building.

2. 2. The container building according to claim 1, wherein the upper surface of the pedestal around the fastening device is inclined so as to become lower as it goes away from the fastening device.

3. 2. The container building according to claim 1, wherein the fastening device is fixed to the upper end of the anchor via a base plate.

4. A container building as described in claim 1, wherein an auxiliary pedestal of a predetermined height is provided on the foundation at a position other than the position facing the connecting hole and facing the underside of the structure, and a leveling block that supports the underside of the structure and has an adjustable height of the support surface is arranged on the upper end surface of the auxiliary pedestal.

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