JP2002362682A - Tank internal reinforcement structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tank internal reinforcement structure wherewith side walls of a tank can be prevented certainly from deforming even in case of earthquake. SOLUTION: First horizontal reinforcement bars 29 and second horizontal reinforcement bars 30 for preventing the tank main body 21 from deforming outward by a liquid pressure are installed respectively crossing each other at the inside of the tank main body 21, on positions at a specified distance from a ceiling wall 24 of the tank main body 21 which is made up by joining a plurality of panels 26 for storing liquid. A plurality of vertical reinforcement bars 31 for supporting the ceiling wall 24 are erected between the bottom wall 25 and the ceiling wall 24 of the tank main body 21. Diagonal reinforcement bars 32 are arranged at positions respectively between both ends of the first horizontal reinforcement bar 29 and the upper end of the adjoining vertical reinforcement bar 31 and between both ends of the second horizontal reinforcement bar 30 and the upper end of the adjoining vertical reinforcement bar 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal reinforcing structure for a tank for storing a liquid such as tap water.

[0002]

2. Description of the Related Art For example, a tank body such as a large water storage tank is constructed by welding a large number of square or rectangular panels to form a substantially flat rectangular cylinder as a whole. That is, each panel is welded to another adjacent one, and a predetermined number of panels are joined to form each wall of the tank body.

[0003] Inside a tank body of a large tank, a plurality of horizontal reinforcing bars are erected and arranged so as to intersect in the vertical and horizontal directions. In addition, a plurality of vertical reinforcing bars for supporting the ceiling wall are provided between the ceiling wall and the bottom wall of the tank body. And each intersection part of the said horizontal reinforcement bar is mutually welded, and the vertical reinforcement bar is each welded to those intersection parts.

[0004]

However, in this conventional internal reinforcing structure for a tank, when a lateral run-out occurs with respect to the side wall due to an earthquake or the like in a state where the liquid is stored in the tank body, the side wall is tilted. Or may be done. In other words, when a lateral sway load acts on the tank body due to an earthquake or the like, the ceiling and bottom walls cause the lateral sway load to act in the extension direction, not in the bending direction or the inclination direction,
Can withstand enough. However, the lateral load on the side wall acts in a direction in which the side wall is tilted or bent. In this case, since the reinforcement of the side wall is a vertical and horizontal reinforcing bar, the reinforcing effect is not sufficient.

[0005] The present invention has been made by paying attention to such problems existing in the prior art. An object of the present invention is to provide a tank internal reinforcement structure capable of suppressing tilting and deformation of a side wall of a tank main body with a simple configuration even when a lateral load occurs due to an earthquake or the like.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method of manufacturing a fuel cell system, comprising the steps of: connecting a plurality of panels to each other; With the horizontal reinforcing bar and the second horizontal reinforcing bar crossing each other, the horizontal reinforcing bar is erected at a predetermined distance from the ceiling wall of the tank body, and a plurality of vertical reinforcing bars are provided between the bottom wall and the ceiling wall of the tank body. In the internal reinforcing structure of a standing tank, an inclined reinforcing bar is disposed in a space surrounded by the first and second horizontal reinforcing bars, the outermost vertical reinforcing bar, the side wall and the ceiling wall. .

Therefore, according to the present invention, even when an earthquake occurs and a horizontal run-out occurs, the horizontal reinforcing bars and the vertical reinforcing bars are maintained orthogonal to each other by the inclined reinforcing bars. Therefore, it is possible to suppress the side wall of the tank body from tilting or deforming. In addition, as a configuration for obtaining such an effect, only the inclined reinforcing bar is provided, so that the configuration is simple.

Further, the present invention provides a plurality of first horizontal reinforcing bars and a plurality of second horizontal reinforcing bars intersecting each other between side walls inside a tank body in which a plurality of panels are joined and fixed to store a liquid. In this state, a plurality of vertical reinforcing bars are provided between the intersections of the first horizontal reinforcing bar and the second horizontal reinforcing bar and the ceiling wall of the tank main body at predetermined intervals from the ceiling wall of the tank main body. In the internal reinforcing structure of the disposed tank, a truss-type reinforcing frame is provided between the lower end of the outermost vertical reinforcing bar and the side wall, and the first and second horizontal reinforcing bars, the outermost vertical reinforcing bar, An inclined reinforcing bar is provided in a space surrounded by the side wall and the ceiling wall.

Therefore, also in the present invention, even when an earthquake occurs and a horizontal run-out occurs, each horizontal reinforcing bar and the vertical reinforcing bar are maintained in an orthogonal state by the first inclined reinforcing bar. At the same time, the side wall of the tank body is held upright by the truss-type reinforcing frame. Therefore, tilting and deformation of the side wall of the tank main body can be prevented.

[0010] If the inclined reinforcing bar is disposed between the intersection between the end of each of the first and second horizontal reinforcing bars and the side wall and the intersection between the vertical reinforcing bar and the ceiling wall, it is substantially at the center of the side wall. The part and the bottom wall are connected via the inclined reinforcing bar.
Therefore, tilting and deformation of the side wall of the tank body can be effectively prevented.

If the tank main body is formed in a substantially rectangular tube shape having four side walls and each side wall is connected by an arc-shaped corner portion, the strength of the four corners of the tank is improved.

If the truss-type reinforcing frame is a truss bar assembly comprising an inclined truss bar, the inside of the side wall of the tank body can be reliably reinforced by the truss-type reinforcing frame having a simple structure.

[0013] If the truss reinforcing member has a structure in which the truss bar assembly has two or more layers, the inclination and deformation of the side wall can be suppressed even when the tank body is high.
The truss-type reinforcing frame comprises a truss bar assembly having at least three layers of upper and lower layers, wherein an auxiliary truss bar assembly is provided between an inner protruding end of an intermediate horizontal truss bar and an inner end of a vertically adjacent horizontal truss bar. Is provided, it is possible to cope with a case where the side wall is higher.

The reinforcing bar of the truss bar assembly at the lower end is attached to a mounting plate erected on the upper surface of both ends of the bottom wall of the tank body.
If it is fixed so as to extend in a direction deviated from the diagonal line, breakage can be prevented when a repeated load of a constant water level acts on the side wall. In other words, in this way, when a repeated load of the water level is constantly applied, the compressive load acting on the inclined reinforcing bar at the lower end acts as a pressing force against the bottom wall or the like against the mounting plate. Therefore, no rotational force is applied to the mounting plate around its corner, and the possibility of fatigue failure due to repeated loads occurring at the joint between the mounting plate and the bottom wall of the tank body is prevented. Can be.

At the center of the tank main body, a column is provided upright between the intersection of the first horizontal reinforcing bar and the second horizontal reinforcing bar and the bottom wall of the tank main body. The load acting on the ceiling wall, each horizontal reinforcing bar and the vertical reinforcing bar can be carried. For this reason, it is possible to make the whole structure sturdy.

The outer periphery of the upper end of the support and the first
By disposing the inclined reinforcing bars between the horizontal reinforcing bar and the respective intersections of the second horizontal reinforcing bars, the columns and the horizontal reinforcing bars are maintained orthogonal to each other even when the lateral vibration occurs. Therefore, it is possible to improve the load supporting ability of the support, and it is possible to make the overall structure more robust.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1 to FIG.
Is installed on the foundation concrete 22 and stores liquid such as tap water inside. This tank body 2
1 is formed in a substantially rectangular cylindrical shape by four side walls 23, a ceiling wall 24 and a bottom wall 25. Each of the side walls 23, the ceiling wall 24, and the bottom wall 25 is composed of a plurality of panels 26, and the panels 26 are welded to each other at joints 26a composed of flanges on the outer periphery or square pipes provided on the outer periphery. And is fixed by bonding. For example, as shown by a two-dot chain line in FIG. 1, the portions between the side walls 23 at the four corners of the tank body 21 may be connected via an arc-shaped corner portion 27.

A side wall reinforcing member 28 having a substantially L-shaped cross section is welded and fixed to the flange or joint 26a of each side wall 23 so as to extend in the vertical direction. Ceiling wall 24
Between the side wall reinforcing members 28 of the pair of side walls 23 opposed to each other (in the left-right direction in FIG. 1) so as to be spaced apart from each other by a predetermined distance from each other. A horizontal reinforcing bar 29 is erected and fixed. A plurality of substantially rectangular L-shaped cross sections are provided between the side wall reinforcing members 28 of the pair of side walls 23 which are opposed to each other via the space in the tank (vertical direction in FIG. 1) so as to intersect with the first horizontal reinforcing bars 29. The second horizontal reinforcing bar 30 is erected and fixed. In this state, the intersections of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 are welded and fixed to each other.

The tank body 2 is arranged so as to correspond to each intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30.
1 between the bottom wall 25 and the ceiling wall 24, a plurality of vertical reinforcing bars 31 having a substantially L-shaped cross section for supporting the ceiling wall 24.
Is fixed upright. In this state, each vertical reinforcing bar 31 is welded and fixed to the intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30.

An inclined reinforcing bar 32 is disposed in a space surrounded by the side wall 23, the ceiling wall 24, the first and second horizontal reinforcing bars 29, 30 and the vertical reinforcing bar 31. That is, both ends of the first horizontal reinforcing bar 29 and the side wall reinforcing members 28
And the intersection between the upper end of the outermost vertical reinforcing bar 31 and the ceiling wall 24, the inclined reinforcing bar 32
Are fixed by welding via mounting plates 33, respectively. Further, the intersections between both ends of the second horizontal reinforcing bar 30 and the side wall reinforcing member 28 and the outermost vertical reinforcing bar 3
Similarly, between the upper end of 1 and the intersection of the ceiling wall 24, the inclined reinforcing bars 32 are similarly fixed by welding via the mounting plates 33, respectively. Then, the inclined reinforcing bars 32 maintain the orthogonality between the first horizontal reinforcing bar 29 and the vertical reinforcing bar 31 and between the second horizontal reinforcing bar 30 and the vertical reinforcing bar 31 at all times. Has become.

Therefore, when a liquid such as tap water is stored in the tank main body 21 configured as described above, an earthquake or the like occurs, and a lateral sway load is applied to the tank main body 21 in the left-right direction or the front-rear direction. Even when it acts, the side wall 23 does not significantly tilt in the left-right direction or the front-back direction. That is, the lateral sway load acts in the tilting direction of the side wall 23 and the vertical reinforcing bar 31, which can be endured by the tilting reinforcing bar 32. Therefore, there is no possibility that the side wall 23 of the tank main body 21 is greatly inclined or deformed by receiving the lateral swing load and the liquid pressure.

Therefore, according to this embodiment, the following effects can be obtained. (1) In this tank internal reinforcement structure, the side wall 2
3, the first and second horizontal reinforcing bars 29, 3 located on the inner surface
0, and between the both ends of the second horizontal reinforcing bar 30 located on the inner surface of the side wall 23 and the upper ends of the vertical reinforcing bars 31 adjacent thereto. Inclined reinforcing bars 32 are respectively provided.

For this reason, even if a lateral shake occurs due to an earthquake, each of the horizontal reinforcing bars 2 is
9, 30 and the vertical reinforcing bar 31 are held in an orthogonal state. Therefore, it is possible to reliably prevent the side wall 23 of the tank main body 21 from being inclined and deformed by receiving the lateral swing load and the liquid pressure. Moreover, in order to obtain this effect, only the inclined reinforcing bar 32 is provided, so that the configuration is extremely simple.

(2) In this internal reinforcing structure of the tank, if the corner portions 27 between the side walls 23 are formed in an arc shape, the strength of the corner portions between the side walls 23 is improved by the arc shape.

(Second Embodiment) Next, a second embodiment of the present invention will be described focusing on parts different from the first embodiment.

Now, also in the second embodiment, FIG.
As shown in FIG. 9, a plurality of first horizontal reinforcing bars 29 are provided at predetermined intervals from the ceiling wall 24 between the side wall reinforcing members 28 in the pair of side walls 23 facing left and right (left and right in FIG. 5). It is erected and fixed at a predetermined pitch. In addition, the first horizontal reinforcing bars 29 are opposed to each other so as to intersect with the first horizontal reinforcing bars 29 (FIG. 5).
Between the side wall reinforcing members 28 in the pair of side walls 23.
A plurality of second horizontal reinforcing bars 30 are erected and fixed at a predetermined pitch.

Between each intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 and the ceiling wall 24, a vertical reinforcing bar 36 having a substantially L-shaped cross section is interposed. In this state, the intersections of the first horizontal reinforcement bar 29 and the second horizontal reinforcement bar 30 are welded and fixed to each other, and the vertical reinforcement bars 36 are welded and fixed to the intersections.

The vertical reinforcing bars 36 between both ends of each of the first horizontal reinforcing bars 29 and the upper ends of the vertical reinforcing bars 36 adjacent to the inside thereof, and both ends of the second horizontal reinforcing bar 30 and the insides thereof. The first inclined reinforcing bars 37 are respectively erected and disposed between the upper ends of the first reinforcing bars 37 via mounting plates 38. And, by these first inclined reinforcing bars 37,
The space between the first horizontal reinforcing bar 29 and the vertical reinforcing bar 36 and the space between the second horizontal reinforcing bar 30 and the vertical reinforcing bar 36 are always kept orthogonal.

The tank main body 2 is arranged so as to correspond to lower portions of both ends of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30.
1, horizontal reinforcing bars 29, 30 inside each side wall 23.
A plurality of truss-type reinforcing frames 39 are disposed between the truss-type reinforcing frame 39 and the bottom wall 25. Each truss-type reinforcing frame 39 is configured by connecting a truss bar assembly 40 in a vertical direction with a mounting plate 41 in three layers. Each truss bar assembly 40 includes a horizontal truss bar 40a extending in the lateral direction, a vertical truss bar 40b extending upward from the inner end of the horizontal truss bar 40a, and an inclined truss bar 40c extending obliquely outward from the inner end of the horizontal truss bar 40a. Are connected by welding with a mounting plate 41. In addition,
The upper vertical truss bar 40b is fixed to the horizontal reinforcing bars 29, 30 by welding.

A second inclined reinforcing bar 42 is disposed between the mounting plate 41 inside the upper part of each truss-type reinforcing frame 39 and the lower end of the vertical reinforcing bar 36 adjacent to the inside thereof. A third inclined reinforcing bar 4 is provided between a mounting plate 41 on the lower inner side of each truss-type reinforcing frame 39 and a mounting plate 43 erected on the upper surface of the end of the bottom wall 25 of the tank body 21.
4 are provided respectively.

Further, as shown in FIG. 9, the lower end of the third inclined reinforcing bar 44 constituting the lower end truss bar assembly 40 is deviated from the diagonal line L1 with respect to the mounting plate 43 on the bottom wall 25. It is welded and fixed in a state of extending in the direction indicated. Thus, even if a compressive load is applied to the third inclined reinforcing bar 44 when a constant load of the water level is applied, the compressive load acts on the mounting plate 43 as a force in a rotational direction about the diagonal L1. Therefore, the occurrence of fatigue failure due to repeated load at the joint between the mounting plate 43 and the tank bottom wall 25 is avoided.

When assembling the truss-type reinforcing frame 39 inside each side wall 23 of the tank body 21, a plurality of truss bar assemblies 40 are formed on the upper surface of the bottom wall 25 as shown in FIGS. The support bar 45 to be set up and fixed. Then, after the truss bar assemblies 40 of the truss-type reinforcing frames 39 are laminated and assembled on the upper ends of the support bars 45, the second inclined reinforcing bars 42 and the third inclined reinforcing bars 44 are assembled.

As shown in FIGS. 5 to 8, at the center of the tank main body 21, a portion between the intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 and the bottom wall 25 of the tank main body 21 is provided. , A cylindrical column 46 is erected and fixed. The support 46 supports the load of the ceiling wall 24, the horizontal reinforcing bars 29, 30 and the vertical reinforcing bar 36 at the center of the tank body 21.

A receiving plate 47 is provided on the outer peripheral surface of the upper end of the support column 46.
Are fixed by welding, and the outer peripheral portion of the upper surface of
Eight connecting plates 47a are erected and fixed by welding between the outer peripheral surfaces of the connecting plates 47a. A fourth inclined reinforcing bar 48 is provided between an intermediate portion of each connecting plate 47a and each intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 adjacent to the outside thereof.
Are respectively provided by welding and fixing. The columns 46 and the horizontal reinforcing bars 29 and 30 are held in an orthogonal state by the fourth inclined reinforcing bars 48.

For this reason, in a state where tap water or other liquid is stored in the tank main body 21 configured as described above, an earthquake occurs, and the side wall 23 of the tank main body 21 oscillates in the left-right direction or the front-back direction. Even when a load is applied, the side wall 2
3 does not significantly tilt or deform in the left-right direction or the front-back direction. That is, the inclined reinforcing bar 37 at the upper end performs the same operation as the inclined reinforcing bar 32 in the first embodiment. Further, the truss-type reinforcing frame 39 in the second embodiment prevents the side wall 23 from tilting or deforming. Further, in the second embodiment, the support 46
And the fourth inclined reinforcing bar 487 connected to the column 46 restrains the ceiling wall 24, thereby preventing the side wall 23 from tilting or deforming.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the effects (1) and (2) of the first embodiment. (3) In this tank internal reinforcement structure,
The first inclined reinforcing bar is provided between both ends of the horizontal reinforcing bar 29 and the upper end of the vertical reinforcing bar 36 adjacent thereto and between both ends of the second horizontal reinforcing bar 30 and the upper end of the vertical reinforcing bar 36 adjacent thereto. 37 are provided respectively. Inside the side wall 23 of the tank body 21, a plurality of truss-type reinforcing frames 39 are arranged corresponding to the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30. Between the upper inner side of each truss-type reinforcing frame 39 and the lower end of the vertical reinforcing bar 36 adjacent thereto, second inclined reinforcing bars 42 are respectively disposed, and the lower inner side of each truss-type reinforcing frame 39 and the tank body 21 Bottom wall 25
Third inclined reinforcing bars 44 are provided between both ends.

Therefore, even when an earthquake occurs and a horizontal run-out occurs, each of the horizontal reinforcing bars 29 and 30 and the vertical reinforcing bar 36 are maintained in an orthogonal state by the first inclined reinforcing bar 37. At the same time, the side wall 23 of the tank body 21 is held upright by the truss-type reinforcing frame 39, the second inclined reinforcing bar 42, and the third inclined reinforcing bar 44. Therefore, it is possible to reliably prevent the side wall 23 of the tank body 21 from tilting or deforming.

(4) In this tank internal reinforcing structure, the truss-type reinforcing frame 39 is provided with a horizontal truss bar 40a.
And a truss bar assembly 40 having a vertical truss bar 40b extending upward from the inner end of the horizontal truss bar 40a and an inclined truss bar 40c extending obliquely outward from the inner end of the horizontal truss bar 40a. It is configured.

Therefore, the truss-type reinforcing frame 3 having a simple structure is used.
9, the inside of the side wall 23 of the tank body 21 can be reliably reinforced. (5) In this tank internal reinforcing structure, the third inclined reinforcing bar 44 is attached to the mounting plate 43 erected on the upper surface of both ends of the bottom wall 25 of the tank body 21 by a diagonal line L1.
Is fixed so as to extend in a direction deviated from. For this reason, when a lateral swing load is generated, a compressive load acting on the third inclined reinforcing bar 44 acts on the mounting plate 43 as a pressing force against the bottom wall 25. Therefore, no rotational power is applied to the mounting plate 43 and the bottom wall 2 of the tank body 21 is not rotated.
It is possible to prevent the possibility of fatigue failure due to a repeated load at all times at the joint between the mounting plate 43 and the mounting plate 43 due to the vertical rise and fall of the water level.

(6) In this tank internal reinforcement structure, at the center of the tank main body 21, the intersection between the first horizontal reinforcement bar 29 and the second horizontal reinforcement bar 30 and the bottom wall 25 of the tank main body 21. A support 46 is provided upright. Therefore, in the center of the tank body 21, the support 4
6, the load of the ceiling wall 24 of the tank body 21, the horizontal reinforcing bars 29, 30 and the vertical reinforcing bar 36 can be reliably supported. Further, the columns 46 and the like restrain the ceiling wall 24, and as a result, it is effective to prevent the side wall 23 from tilting or deforming.

(7) In this tank internal reinforcing structure, a fourth inclined portion is provided between the outer periphery of the upper end of the column 46 and each intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 adjacent thereto. Reinforcing bars 48 are provided respectively. For this reason, even when an earthquake or the like occurs and a horizontal run-out occurs, the column 46 and the horizontal reinforcing bars 29 and 30 are maintained in an orthogonal state. Therefore, the function of the support column 46 described above is effectively exerted, and a sturdy tank can be realized as a whole.

(Third Embodiment) Next, a third embodiment of the present invention will be described focusing on parts different from the second embodiment.

In the third embodiment, FIG.
As shown in FIG. 0 and FIG. 11, the tank main body 21 is formed to be horizontally longer than in the case of the second embodiment. Each first horizontal reinforcing bar 29 is formed longer than in the second embodiment so as to conform to the shape of the tank main body 21, and the second horizontal reinforcing bar 29 is formed longer than in the second embodiment. Are also arranged in large numbers.

In this embodiment, the tank body 21
In the center, two columns 46 are erected between the intersection of the first horizontal reinforcing bar 29 and the second horizontal reinforcing bar 30 and the bottom wall 25 of the tank body 21. Then, at the center of the tank body 21 by these columns 46,
The loads of the ceiling wall 24, the horizontal reinforcing bars 29, 30 and the vertical reinforcing bar 36 are supported.

Therefore, according to the third embodiment, the following effects can be obtained in addition to the effects described in (2) to (7) in each of the above embodiments. (8) In the internal reinforcement structure of the tank, a plurality of columns 46 are provided upright at the center of the tank body 21. Therefore, the tank body 21 is
The load of the ceiling wall 24, the horizontal reinforcing bars 29, 30 and the vertical reinforcing bar 36 can be shared by a plurality of members and can be reliably supported. Therefore, it is particularly effective when applied when the installation area of the tank body 21 is large.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described focusing on parts different from the second embodiment.

In the fourth embodiment, FIG.
As shown in FIG. 2, the side wall 23 of the tank body 21 is formed so as to be higher than in the case of the second embodiment.
Each of the truss-type reinforcing frames 39 provided on the inner surface of the side wall 23 has a configuration in which the truss bar assemblies 40 are vertically connected to each other by four layers with a mounting plate 41. Each truss bar assembly 40 is configured by connecting a horizontal truss bar 40a, a vertical truss bar 40b, and an inclined truss bar 40c, similarly to the second embodiment.

The intermediate truss bar assembly 40
The horizontal truss bar 40a is protruded inward, and a mounting plate 49 is welded and fixed to a protruding end thereof. Lateral truss bar 4 of truss bar assembly 40 located vertically adjacent
An auxiliary truss bar 50 is mounted in an inclined state between each mounting plate 41 at the inner end of Oa and the intermediate mounting plate 49. And, by these auxiliary truss bars 50,
Truss-type reinforcement frame 3 composed of three-layer truss bar assembly 40
The reinforcement capacity of 9 is enhanced.

Therefore, according to the fourth embodiment, the following effects can be obtained in addition to the effects described in (2) to (8) in each of the above embodiments. (9) In the internal reinforcing structure of the tank, the auxiliary truss bar 50 is provided between the inner protruding end of the middle horizontal truss bar 40a and the inner end of the vertically adjacent horizontal truss bar 40a.
Are arranged. Therefore, the side wall 2 of the tank body 21
Even if the truss bar 3 is high and the truss bar assembly 40 has four or more layers, the inside of the side wall 23 of the tank body 21 can be strongly reinforced by the truss-type reinforcing frame 39 having a simple structure.

(Modification) This embodiment can be embodied with the following modifications. In the first embodiment, as shown by a chain line in FIG. 4, the inclined reinforcing bars 32 are arranged inside and outside the inclined reinforcing bars 32 so that the inclined directions are opposite to each other. . With such a configuration, the effect of reinforcing the tank body 21 can be further improved.

In the third embodiment, when the installation area of the tank body 21 is large, the number of the columns 46 to be erected is increased in the left-right direction or the front-back direction. In the fourth embodiment, when the side wall of the tank main body 21 is high, the number of stacked truss bar assemblies 40 of the truss-type reinforcing frame 39 is increased to four or more layers.

Also, in the case of such a configuration, the same effect as in the above embodiment can be obtained.

[0054]

As described in the above embodiments, the present invention can suppress the inclination and deformation of the side wall of the tank body with a simple structure even when a lateral load occurs due to an earthquake or the like. It has an excellent effect.
Further, in a tank having a certain size or more, the total weight of the material used is reduced and the number of welded joints is reduced as compared with the reinforcing structure of the conventional tank, so that the construction time can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an internal reinforcement structure of a tank according to a first embodiment.

FIG. 2 is a schematic front view of the internal reinforcing structure of the tank of FIG.

FIG. 3 is an enlarged partial plan view showing a part of FIG. 1;

FIG. 4 is an enlarged partial front view of FIG. 2;

FIG. 5 is a schematic plan view showing an internal reinforcing structure of a tank according to a second embodiment.

FIG. 6 is a schematic front view of the internal reinforcing structure of the tank in FIG. 5;

FIG. 7 is an enlarged partial front view showing a part of FIG. 6;

FIG. 8 is a transverse sectional view of the part of FIG. 7;

FIG. 9 is an enlarged sectional view of a main part of the internal reinforcing structure of the tank in FIG. 6;

FIG. 10 is a schematic plan view showing an internal reinforcing structure of a tank according to a third embodiment.

11 is a schematic front view of the internal reinforcing structure of the tank shown in FIG.

FIG. 12 is an essential part cross-sectional view showing an internal reinforcing structure of a tank according to a fourth embodiment.

[Explanation of symbols]

21: tank body, 23: side wall, 24: ceiling wall, 25 ...
Bottom wall, 26 panel, 27 corner, 29 first horizontal reinforcing bar, 30 second horizontal reinforcing bar, 31 vertical reinforcing bar, 32 inclined reinforcing bar, 36 vertical reinforcing bar, 37
First inclined reinforcing bar, 39: truss type reinforcing frame, 40: truss bar assembly, 40a: horizontal truss bar, 40b: vertical truss bar, 40c: inclined truss bar, 42: second inclined reinforcing bar, 43: mounting plate, 44 ... 3 inclined reinforcing bars, 46 ...
Prop, 48: fourth inclined reinforcing bar, 50: auxiliary truss bar, L1: diagonal line.

Claims (10)

[Claims] 1. A state in which a plurality of first horizontal reinforcing bars and a plurality of second horizontal reinforcing bars cross each other between side walls inside a tank body in which a plurality of panels are joined and fixed to store a liquid. In the internal reinforcement structure of a tank, which is erected at a predetermined distance from the ceiling wall of the tank body and a plurality of vertical reinforcing bars are erected between the bottom wall and the ceiling wall of the tank body, An internal reinforcing structure for a tank, comprising a horizontal reinforcing bar, an outermost vertical reinforcing bar, and an inclined reinforcing bar disposed in a space surrounded by a side wall and a ceiling wall. 2. A state in which a plurality of first horizontal reinforcing bars and a plurality of second horizontal reinforcing bars cross each other between side walls inside a tank body in which a plurality of panels are joined and fixed to store a liquid. A tank which is erected at a predetermined distance from a ceiling wall of a tank main body and a plurality of vertical reinforcing bars are arranged between each intersection of the first horizontal reinforcing bar and the second horizontal reinforcing bar and the ceiling wall of the tank main body. In the internal reinforcing structure, a truss-type reinforcing frame is provided between the lower end of the outermost vertical reinforcing bar and the side wall, and the first and second horizontal reinforcing bars, the outermost vertical reinforcing bar, the side wall, and the ceiling wall are provided. The internal reinforcement structure of the tank, characterized in that an inclined reinforcement bar is arranged in the space surrounded by. 3. The method according to claim 1, wherein the inclination reinforcing bar is provided in each of the first and second bars.
3. The internal reinforcement structure for a tank according to claim 1, wherein the internal reinforcement structure is arranged between an intersection between the horizontal reinforcing bar and both ends and the side wall and an intersection between the vertical reinforcing bar and the ceiling wall. 4. The tank body according to claim 1, wherein the tank body is formed in a substantially rectangular cylindrical shape having four side walls, and each side wall is connected by an arc-shaped corner portion. The internal reinforcing structure for a tank according to claim 1. 5. The internal reinforcement structure of a tank according to claim 2, wherein the truss-type reinforcing frame comprises a truss bar assembly having an inclined truss bar. 6. The truss reinforcing member has a structure in which a truss bar assembly has two or more upper and lower layers.
The internal reinforcement structure of the tank according to 1. 7. The truss-type reinforcing frame has a structure in which the truss bar assembly has at least three layers, and an auxiliary truss bar assembly is provided between an inner protruding end of an intermediate horizontal truss bar and an inner end of a vertically adjacent horizontal truss bar. The internal reinforcement structure for a tank according to claim 5, wherein a three-dimensional structure is provided. 8. The inclined reinforcing bar of the truss bar assembly at the lower end is fixed to a mounting plate erected at the intersection of the side wall and the bottom wall of the tank body so as to extend in a direction deviated from a diagonal line thereof. The internal reinforcement structure for a tank according to any one of claims 5 to 7, wherein: 9. A fuel cell system comprising:
The support column is provided upright between the intersection of the horizontal reinforcing bar and the second horizontal reinforcing bar and the bottom wall of the tank body. An internal reinforcement structure for a tank according to claim 1. 10. An inclined reinforcing bar is provided between an outer periphery of an upper end of the column and each intersection of the first horizontal reinforcing bar and the second horizontal reinforcing bar adjacent thereto. The internal reinforcement structure of the tank according to 1.