JP2001315891A - Internal reinforcing structure of tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an internal reinforcing structure of a tank which can reduce the weight of a reinforcing member and the cost. SOLUTION: The reinforcing member 31 is mounted on an internal wall at a lower portion of a tank body for storing a fluid by joining and fixing a plurality of panels 15 thereto in the longitudinal direction in a substantially orthogonal manner to the panels 15 so as to be located between a bottom plate 13 and lowest horizontal reinforcing bars 16A and 16B, and an intermediate portion of the reinforcing member 31 in the vertical direction is connected to an intermediate portion of the horizontal reinforcing bars 16A and 16B in the horizontal direction via an inclined reinforcing bar 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a tank reinforcement structure, and more particularly to a tank reinforcement structure.

[0002]

2. Description of the Related Art Conventionally, a large water storage tank is reinforced by using a horizontal reinforcing bar and a vertical reinforcing bar inside the tank body. The tank body is 1 meter square, 1 ×
It is constructed by welding a plurality of rectangular panels of 2 meters or 1 × 1.5 meters. That is, each of the panels is formed by bending a joining flange portion on each of four sides, adjacent flange portions are welded inside the tank, and the horizontal reinforcing bar is vertically and horizontally interposed between opposed joining flange portions, and a plurality of upper and lower portions are provided. It is erected and connected to the steps.
The vertical reinforcing bar is erected between the bottom plate and the ceiling plate of the tank body and is connected to the horizontal reinforcing bar.

[0003] The lower part of the tank body is easily subjected to water pressure, and therefore a reinforcing structure as shown in FIG. 11 is employed. That is, the joining flange portions 15b integrally formed on the panel body 15a of the plurality of panels 15 are welded to each other to form a tank body, and the bottom plate 13 and the lowermost horizontal reinforcing bar 16 are formed.
A vertical reinforcing frame 61 is erected so as to be located between the vertical reinforcing frame 61 and A. A plurality of connecting plates 62 are connected between the vertical reinforcing frame 61 and the flange portion 15b by welding. A reinforcing plate 63 is connected to the upper end of the vertical reinforcing frame 61 and the horizontal reinforcing bar 16A by welding. The lower end of the vertical reinforcing frame 61 is connected to the joining flange 15b by a reinforcing bar 64.

[0004]

However, in the above-described conventional tank internal reinforcement structure, the vertical reinforcement frame 61 generally has a vertical length of 2 meters.
The vertical span under large water pressure becomes longer. For this reason, the rigidity of the vertical reinforcing frame 61 must be increased to use a heavy one, and there is a problem that the material cost cannot be reduced.

[0005] Further, since the vertical reinforcing frame 61 is heavy, it is difficult to hold it at a predetermined position in a stationary state, and there is a problem that the welding operation is very troublesome. SUMMARY OF THE INVENTION An object of the present invention is to provide a tank internal reinforcement structure which can solve the above-mentioned problems in the conventional technique, can reduce the weight of material, and can easily perform construction work. .

[0006]

According to a first aspect of the present invention, there is provided a fuel cell system, comprising: a plurality of panels which are joined and fixed to each other to store a fluid in a tank body. A horizontal reinforcing bar for preventing deformation of the tank body to the outside by pressure is vertically and horizontally viewed from a plane and connected to a predetermined height from the bottom plate of the tank body, and is connected between the bottom plate and the ceiling plate of the tank body. In a tank in which a vertical reinforcing bar for supporting a ceiling plate is erected, a reinforcing member is vertically arranged on a lower inner side wall of the tank body so as to be located between the bottom plate and a lowermost horizontal reinforcing bar, and a panel. The gist of the present invention is that the reinforcement member is mounted so as to be substantially orthogonal to the reinforcement member, and the middle part in the vertical direction of the reinforcing member and the middle part in the horizontal direction of the horizontal reinforcement bar are connected by the inclined reinforcement bar.

According to a second aspect of the present invention, in the first aspect, the reinforcing member is a truss-type reinforcing frame. According to a third aspect of the present invention, in the second aspect, the truss-type reinforcing frame has a pair of joining flange portions extending in a longitudinal direction of adjacent rectangular panels joined in a lateral direction, and the joining flange. At a position inwardly separated from the part by a predetermined distance, the inclined truss bar being connected in a zigzag manner between the lowermost horizontal reinforcing bar and a vertical truss bar disposed between the bottom plate. Make a summary.

According to a fourth aspect of the present invention, in the third aspect, the lower end of the vertical truss bar is connected to the bottom plate so as not to be displaced toward the joining flange.

According to a fifth aspect of the present invention, in the fourth aspect, the vertical truss bar is engaged with a bracket horizontally welded to the upper surface of the bottom plate so as to be vertically movable relatively. I do.

According to a sixth aspect of the present invention, in the first aspect, above the truss-type reinforcing frame, the horizontal reinforcing bars of a plurality of upper and lower stages are provided with a longitudinal joining flange portion of a panel which is laterally adjacent to the horizontal reinforcing bar. The vertical reinforcement bars are connected at a predetermined interval inward from the vertical reinforcement bar.

According to a seventh aspect of the present invention, in the sixth aspect, the horizontal reinforcing bars are mounted in several stages in the vertical direction, and the third and fourth horizontal reinforcing bars from the bottom have inclined reinforcing bars. The lower end is connected to the upper end of the vertical reinforcing bar, and the upper end is connected to the middle of the fourth horizontal reinforcing bar.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, a lower end portion of the inclined reinforcing bar is connected to a connecting point between the inclined reinforcing bar and the lowermost horizontal reinforcing bar. The gist of the present invention is that the upper end of the inclined reinforcing bar is connected to the joining flange side of the panel.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a large water storage tank will be described below with reference to FIGS.

As shown in FIG. 5, the water storage tank 11 includes a support frame 12 installed on the ground, a bottom plate 13 mounted and fixed on the upper surface thereof, and a tank body mounted on the upper surface of the bottom plate 13. 14. The tank body 1
Numeral 4 is constructed in the shape of a closed rectangular box by welding a large number of square panels 15 to 15 to each other. As shown in FIG. 3, each panel 15 is composed of a square panel body 15a and joining flange portions 15b to 15b which are integrally formed on four sides of the panel body 15a. And the tank main body 14 is comprised by welding many panels 15-15 in order at the edge part of the flange parts 15b-15b. In this embodiment, illustrations of the welded portions are all omitted.

The panel 15 is formed to have a size of one meter on one side, and six panels 15 are welded in a vertical direction. In the horizontal direction, five pieces are welded on each side. Accordingly, the height of the tank body 14 is about 6 meters, and the width and the depth are about 5 meters each.

In the tank body 14, the tank body 1 is provided.
The first horizontal reinforcing bar 16A (16
B) to the fourth horizontal reinforcing bar 19A (19B) are connected in a horizontal direction by welding both ends to the joining flange portion 15b. The first to first
In FIG. 5, two fourth horizontal reinforcing bars 16A to 19A are provided in parallel with the plane of the paper and at a predetermined interval in a direction orthogonal to the plane of the paper. Also, the first to fourth horizontal reinforcing bars 16B to 19B are arranged in a direction orthogonal to the paper surface.
In addition, they are provided at two locations parallel to each other at a predetermined interval in a direction parallel to the paper surface. Further, the first to fourth horizontal reinforcing bars 16A to 19A and the first to fourth horizontal reinforcing bars 16A
A vertical reinforcing bar 24 is provided between the bottom plate 13 and the ceiling of the tank main body 14 so as to correspond to the intersection with B to 19B.
A and 25A are erected at a total of four locations.

As shown in FIG. 5, the height H of the first horizontal reinforcing bars 16A and 16B from the bottom plate 13 is set to two panels 15, that is, 2 meters.
The horizontal distance from the panel 15 to the vertical reinforcing bar 24A is set to 2 meters, and the distance between the vertical reinforcing bar 24A and the vertical reinforcing bar 25A is set to 1 meter. The interval between the first to fourth horizontal reinforcing bars 16A to 19A is set to 1 meter.

The upper and lower panels 15, 15 below the first horizontal reinforcing bars 16A, 16B are provided with a water storage tank 1.
Since the large water pressure in 1 acts, the truss-type reinforcing frame 31 is mounted to withstand this. The truss-type reinforcing frame 31 is a vertical truss bar 32 erected between the bottom plate 13 and the first horizontal reinforcing bar 16A as shown in FIGS.
, Flange portions 15b, 15b and the vertical truss bar 32
Inclined truss bars 33 to 33 erected and connected by welding, and horizontal truss bars 34 erected and connected horizontally corresponding to the vertical joining flange portions 15b, 15b of the panels 15, 15. It is configured.

The lower end of the vertical truss bar 32 is shown in FIGS.
As shown in the figure, the bottom plate 13 is engaged with a bracket 35 welded to the upper surface. The bracket 35 is a horizontal plate 3
The vertical truss bar 32 is formed of an angle material having a predetermined length composed of the plate portion 32a and the plate portion 3a.
2b. One plate portion 32b of the vertical truss bar 32 is engaged with the engagement groove 35c formed in the vertical plate portion 35b of the bracket 35.
Is engaged, the lower end of the vertical truss bar 32 is connected to the bracket 35. In addition, the vertical truss bar 3
2 is welded to the lower surface of the first horizontal reinforcing bar 16A.

One of the plurality of inclined truss bars 33, which is located at an intermediate portion, extends obliquely rightward and upward toward the first horizontal reinforcing bar 16A, and its tip end is connected to the first horizontal reinforcing bar 16A. Welded. The inclined reinforcing bar 36 increases the reinforcing strength of the truss-type reinforcing frame 31.

The intermediate portion of the joining flange portion 15b extending in the horizontal direction of each panel 15 and the first horizontal reinforcing bar 1
The middle portions of 6A are connected by inclined reinforcing bars 38 located in a horizontal plane. Corresponding to the horizontal truss bar 34, an intermediate portion between the vertical truss bar 32 and the joining flange portion 15b is connected by an inclined reinforcing bar 38 located in a horizontal plane. The middle portion of the first horizontal reinforcing bar 16A and the middle portion of the joining flange portion 15b extending in the vertical direction are connected to each other by an inclined reinforcing bar 39 located in a vertical plane. The intermediate portion of the second horizontal reinforcing bar 17A and the intermediate portion of the joining flange portion 15b are connected to each other by inclined reinforcing bars 38 and 40 located in a horizontal plane and a vertical plane. Similarly, as shown in FIG. Horizontal reinforcement bar 18A
And the middle part of the joining flange 15b, the middle part of the fourth horizontal reinforcing bar 19A, and the middle part of the joining flange 15b are also connected by inclined reinforcing bars 38 and 40, respectively.

As shown in FIG. 5, a vertical reinforcing bar 41 made of an angle material is connected between the first horizontal reinforcing bar 16A and the third horizontal reinforcing bar 18A so as to be close to the joining flange 15b. I have. A position corresponding to the upper end of the vertical reinforcing bar 41 and the fourth horizontal reinforcing bar 19A
Inclined reinforcing bar 4 located in the vertical plane between
2 are erected and connected by welding. Further, a vertical reinforcing bar 43 is connected between the fourth horizontal reinforcing bar 19A and the ceiling of the tank body 14 by welding.

The inside of the water storage tank 11 constructed as described above is supplied with water from an oil supply pipe (not shown), and the stored water is discharged to the outside by a discharge pipe (not shown). It has become.

Next, the effects of the tank reinforcing structure configured as described above will be listed together with the configuration. (1) In the above embodiment, a truss-type reinforcing frame 31 as a reinforcing member is mounted on the inner wall portion of the upper and lower two-stage panel 15 located between the bottom plate 13 and the first horizontal reinforcing bar 16A. The vertical center of the reinforcing frame 31 and the first
The horizontal reinforcing bar 16 </ b> A was connected to the horizontal center portion by an inclined reinforcing bar 36. Therefore, the truss-type reinforcing frame 31
The span that shares the water pressure in the vertical direction is the conventional span (2
M), and the weight of the truss-type reinforcing frame 31 can be significantly reduced, thereby reducing the material cost and facilitating the manufacturing and welding operations. be able to.

(2) In the above embodiment, the inclined reinforcing bar 39 located in the vertical plane is connected between the first horizontal reinforcing bar 16A and the joining flange 15b of the panel 15.
For this reason, the reinforcing function can be stabilized by averaging the tensile stress acting on the inclined reinforcing bar 36 and the tensile stress acting on the inclined reinforcing bar 39 located in the vertical plane.

(3) In the above embodiment, the vertical reinforcing bar 41 is connected between the first horizontal reinforcing bar 16A and the third horizontal reinforcing bar 18A, and the upper end of the vertical reinforcing bar 41 and the fourth horizontal reinforcing bar 19A are connected. Inclined reinforcing bar 42 located in vertical plane
Further, the upper end of the inclined reinforcing bar 42 and the ceiling plate were connected by the vertical reinforcing bar 43. For this reason, it is not necessary to vertically stand the vertical reinforcing bar at the lower position corresponding to the vertical reinforcing bar 43, and the workability at the time of maintenance and inspection of the internal space of the tank body 14 can be improved.

(4) In the above embodiment, the vertical truss bar 3
The lower end of the bracket 2 is engaged with an engagement groove 35c formed in the vertical plate 35b of the bracket 35. Therefore, unlike the case where the lower end portion of the vertical truss bar 32 is connected to the upper surface side of the bottom plate 13 over a wide range, the outer edge of the bottom plate 13 receives a tensile stress due to the water pressure received by the panel 15 and the lower end portion of the vertical truss bar 32 is attached to the bottom plate 13. Bracket 35
, The tensile stress can be shared, and the durability of the bottom plate 13 can be improved.

The above embodiment can be modified and embodied as follows. ○ As shown in FIG. 6, the upper end of the inclined reinforcing bar 36 is
The inclined reinforcing bar 39 may be set to have substantially the same length as the inclined reinforcing bar 40 by extending and connecting to an intersection where the horizontal reinforcing bar 16A and the first horizontal reinforcing bar 16B intersect. In this case, the reinforcement structure of the truss-type reinforcement frame 31 can be stabilized.

The horizontal truss bar 34 may be omitted as shown in FIG. In another example shown in FIG. 8, a hole 61a for reducing the weight is provided in the vertical reinforcing frame 61, and the vertical reinforcing frame 61 and the first horizontal reinforcing bar 16A are connected by the inclined reinforcing bar 36. Further, the joining flange portion 15b of the panel 15 and the vertical reinforcing frame 61 are connected by welding a connecting plate 62 to form a reinforcing plate 63.
The upper part of the vertical reinforcing frame 61 is fixed to the horizontal reinforcing bar 16 </ b> A, and the lower end of the vertical reinforcing frame 61 is connected to the panel 15 by the reinforcing bar 64. Another example of this is the inclined reinforcing bar 36.
Is provided, the vertical reinforcing frame 61 can be reduced in weight and material cost can be reduced.

As shown in FIG. 9, the vertical reinforcing frame 61 may be formed to be thin and narrow, and the vertical reinforcing frame 61 and the first horizontal reinforcing bar 16A may be connected by the inclined reinforcing bar 36. Since the upper end of the inclined reinforcing bar 36 is welded to the intersection of the horizontal reinforcing bar 16A and the vertical reinforcing bar 24A, a short inclined reinforcing bar 40 is used instead of the inclined reinforcing bar 39. Also in this alternative example, the provision of the inclined reinforcing bars 36 can reduce the weight of the vertical reinforcing frame 61 and the material cost.

As shown in FIG. 10, a vertical truss bar 32 and a horizontal truss bar 3 are used in place of the truss-type reinforcing frame 31.
4 may be used. ○ Although not shown, the above-described four-stage horizontal reinforcing bar 16A
To 19A and 16B to 19B may be embodied in a tank provided with one, two, three, or five or more stages.

[0032]

As described in detail above, the first to eighth aspects of the present invention have the effect of reducing the weight of the reinforcing member and reducing the material cost.

Since the truss-type reinforcing frame is used in the second aspect of the present invention, a reasonable reinforcing function can be provided to further reduce material costs. According to the fourth aspect of the present invention, the durability of the bottom plate can be improved by sharing the tensile stress acting on the bottom plate by the reinforcing member.

According to the fifth aspect of the present invention, since the vertical truss bar is engaged with the bracket so as to be relatively movable in the vertical direction, a stable connection structure can be adopted. According to the sixth aspect of the present invention, the workability during maintenance and inspection of the space in the tank can be improved by displacing the vertical reinforcing bar toward the panel.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part of a water storage tank according to an embodiment of the present invention.

FIG. 2 is an enlarged horizontal sectional view of a main part of the same.

FIG. 3 is an enlarged perspective view of a main part.

FIG. 4 is a partial perspective view showing an engagement state between a vertical truss bar and a bracket.

FIG. 5 is a partially omitted longitudinal sectional view of a water storage tank.

FIG. 6 is a partial vertical sectional view of a water storage tank showing another example of the present invention.

FIG. 7 is a partial vertical sectional view of a water storage tank showing another example of the present invention.

FIG. 8 is a partial perspective view of a water storage tank showing another example of the present invention.

FIG. 9 is a longitudinal sectional view of a main part showing another example of the present invention.

FIG. 10 is a longitudinal sectional view of a main part showing another example of the present invention.

FIG. 11 is a perspective view showing an internal reinforcing structure of a conventional tank.

[Explanation of symbols]

13: bottom plate, 14: tank body, 15: panel, 15b
... Flange for joining, 16A ... Horizontal reinforcing bar 16A, 2
4A, 25A: vertical reinforcing bar, 31: truss-type reinforcing frame,
32: Vertical truss bar, 33 to 33: Inclined truss bar, 3
5. Bracket, 36, 39, 42 ... Inclined reinforcing bar, 4
1. Vertical reinforcement bar.

Claims (8)

[Claims] 1. A tank body (14) in which a plurality of panels (15) are joined and fixed to store a fluid is prevented from being deformed outward by a fluid pressure. Horizontal reinforcement bar (16A-19A, 16B-1
9B) vertically and horizontally as seen from a plane, and the tank body (14)
And a vertical reinforcing bar (24A, 25A) for supporting the ceiling plate is provided between the bottom plate (13) of the tank body (14) and the ceiling plate. In the tank, the reinforcing members (31, 61, 31A) are located between the bottom plate (13) and the lowermost horizontal reinforcing bar (16A, 16B) with respect to the lower inner wall of the tank body (14).
Is mounted vertically and substantially perpendicular to the panel (15), and a vertical intermediate portion of the reinforcing member (31, 61, 31A) and a horizontal intermediate portion of the horizontal reinforcing bar (16A, 16B). Internal reinforcement structure of the tank connected to the parts by the inclined reinforcement bar (36). 2. The reinforcing member according to claim 1, wherein
(1, 61, 31A) is the internal reinforcing structure of the tank which is a truss type reinforcing frame (31). 3. The truss-type reinforcing frame (31) according to claim 2, wherein the truss-type reinforcing frame (31) has a pair of joining flange portions (15b, 15b) extending in a longitudinal direction of adjacent rectangular panels (15) joined in a lateral direction. ) And the joining flange portion (15b,
15b), a zigzag connection between a lowermost horizontal reinforcing bar (16A) and a vertical truss bar (32) disposed between the bottom plate (13) at a position inwardly separated by a predetermined distance. Internal reinforcement structure of tank constituted by inclined truss bars (33-33). 4. The internal reinforcement structure of a tank according to claim 3, wherein a lower end of the vertical truss bar (32) is connected to the bottom plate (13) so as not to be displaced toward the joining flange (15b, 15b). . 5. The tank according to claim 4, wherein the vertical truss bar (32) is engaged with a bracket (35) horizontally welded to the upper surface of the bottom plate (13) so as to be vertically movable relatively. Internal reinforcement structure. 6. The vertical reinforcing panel according to claim 1, wherein a plurality of upper and lower horizontal reinforcing bars (16A to 19A, 16B to 19B) are provided above the truss-type reinforcing frame (31) in a vertical direction of a panel adjacent in the horizontal direction. Flange part (15b, 1)
5b) at a predetermined distance inward from the vertical reinforcing bar (4
1) Internal reinforcement structure of the tank to which is connected. 7. The horizontal reinforcing bar (1) according to claim 6, wherein the horizontal reinforcing bars (16A to 19A, 16B to 19B) are mounted in several stages in the vertical direction, and the third and fourth horizontal reinforcing bars from the bottom.
8A, 19A) is connected to an inclined reinforcing bar (42),
The internal reinforcing structure of the tank, the lower end of which is connected to the upper end of the vertical reinforcing bar (41), and the upper end of which is connected to the middle of the fourth horizontal reinforcing bar (19A). 8. The method according to claim 1, wherein:
The inclined reinforcing bar (36) and the lowermost horizontal reinforcing bar (1)
6A) is connected to the lower end of the inclined reinforcing bar (39), and the upper end of the inclined reinforcing bar (39) is connected to the auxiliary tank connected to the joining flange (15b) of the panel. Internal reinforcement structure.