JPS5845275Y2 - liquid storage tank - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a liquid storage tank.

Conventionally, most of the liquid storage tanks installed are made of reinforced concrete or steel.

For the former, for example, in a water treatment plant's regulating pond, expansion joints must be installed at appropriate intervals to prevent concrete from curing and shrinking and from cracking due to temperature changes, but it is extremely difficult to prevent water leakage at these joints and it is difficult to completely prevent water leakage. Construction is difficult, and there is no perfect surface treatment material for waterproofing the concrete itself.

Furthermore, since the latter is lightweight and susceptible to external pressure, when built underground, it becomes an extremely uneconomical structure to withstand the buoyancy of earth pressure and groundwater, and it is also inferior in heat retention of contents.

The present invention proposes a liquid storage tank that can compensate for the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

FIG. 1 shows a plate-shaped composite member 1A, with steel plates 2 disposed on both outer surfaces, a partition plate 3 interposed between these steel plates 2 at appropriate distances in two orthogonal directions, and both steel plates 2. It consists of a slip prevention member 4 fixed to the inner surface of the steel plate 2, and concrete 5 cast in a space surrounded by the steel plates 2 and integrated with the steel plates 2 by the slip prevention member 4.

FIG. 2 shows a columnar composite member 1B, in which steel plates 2 are arranged on the outer surface of the four sides.

In FIGS. 1 and 2, the inside of the notch is shown as a space to clarify the structure, but it is actually filled with concrete 5.

In such composite members IA and IB, the steel plate 2 shares compressive force and tensile force with respect to stresses such as bending moments caused by various loads.

The partition plate 3 shares the tensile force generated between the steel plates 2, but around the concrete 5 during concrete pouring (
The opening 6 is made as large as possible within a range that does not impede its function, taking into consideration the filling property.

In addition, the concrete 5 shares compressive force and shear force,
It is tightly connected to the steel plate 2 by the anti-slip member 4.

This anti-slip member 4 also serves as a buckling stiffener for the steel plate 2 on the compression side among the steel plates 2.

Further, the anti-slip member 4 preferably has a shape as simple as possible considering the surroundings of the concrete 5, and in this embodiment, flat steel is used.

FIGS. 3 and 4 show a composite member IA as described above.

1B, for example, shows a water purification pond with a flat slab structure.

The water purification pond includes basic construction, sheds 7 such as ventilation rooms and inspection rooms, outflow pipes 8, sludge removal pipes 9, inflow pipes 10, and overflow pipes 11.
Composite member I consisting entirely of steel plates 2, concrete 5, etc.
It is composed of A and IB.

That is, the side walls 12 and the floor slab 13 are made of the plate-like composite member 1A, and the columns 14 are made of the column-like composite member 1B.

At this time, the combination of the plate-like composite members 1A for constructing the side walls 12 and the floor slab 13 is performed by welding and joining the steel plates 2 of the plurality of plate-like composite members 1A.

Further, the columnar composite member 1B is assembled by welding its steel plate 2 to the steel plate 2 of the plate-like composite member 1A.

Note that the columnar composite member 1B may be omitted depending on the scale of the liquid storage tank.

Although FIGS. 3 and 4 show a box-shaped liquid storage tank, by using a curved steel plate 2, an arc-shaped liquid storage tank can be constructed.

15 is a drainage basin, 16 is a discharge valve chamber, and 17 is an inflow valve chamber.

As described above, according to the liquid storage tank of the present invention, when constructing the box-shaped storage tank body consisting of the bottom floor slab 13, the ceiling floor slab 13, and the side walls 12 and the pillars 14, conventionally necessary It is highly economical as it does not require formwork for concrete pouring.

In addition, a large number of plate-shaped composite members 1 manufactured in advance at the factory
Since it is only necessary to appropriately weld A and the columnar composite member 1B on site, the construction period can be significantly shortened.

Furthermore, the dimensional accuracy of the structure can be maintained at a high level, and since there is no need to provide expansion joints, the construction process can be significantly shortened, and water leakage can be completely prevented.

Furthermore, since the composite members IA and IB have high toughness, they also have better earthquake resistance than conventional ones.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view of a plate-like composite member, Fig. 2 is a partially cutaway perspective view of a columnar composite member, and Fig. 3 is an example of a liquid storage tank. A vertical cross-sectional view, and FIG. 4 is a cross-sectional view of the same. 1A: plate-like composite member, 1B: columnar composite member, 2: steel plate, 3: partition plate,
4... Slip prevention member, 5... Concrete, 6... Opening, 7... Shed, 8
...Outflow pipe, 9...Sludge removal pipe, 10...
...Inflow pipe, 11...Overflow pipe, 12...
...Side wall, 13...Floor slab, 14...
Pillar, 15... Drainage basin, 16... Outflow valve chamber, 17... Inflow valve chamber.

Claims (1)

[Scope of utility model registration request] A box-shaped storage tank body consisting of a bottom floor slab 13, a ceiling floor slab 13, and a side wall 12 is provided at a suitable location in the ground, and a box-shaped storage tank body consisting of a bottom floor slab 13, a ceiling floor slab 13, and a side wall 12 is provided between the bottom floor slab 13 and the ceiling floor slab 13 so that they are properly connected to each other. A large number of pillars 14 are arranged at intervals, a drainage basin 15 is formed at an appropriate location on the bottom floor plate 13, and an outflow pipe 8 and a mud removal pipe 9 are provided that open to the drainage basin 15, and the inside of the storage tank main body is An inflow pipe 10 and an overflow pipe 11 that open at appropriate locations are provided, and the bottom floor slab 1 is
3. The ceiling slab 13 and the side walls 12 are formed by a large number of plate-like composite members 1A whose edges are butted against each other and the abutting points are welded, and each of the plate-like composite members 1A is Steel plates 2 parallel to each other at regular intervals, a lattice-shaped partition plate 3 having an opening 6 interposed between the two steel plates 2, and a slip prevention member 4 fixed to the inner surface of each steel plate 2; It is constructed of concrete 5 that is cast in a space surrounded by steel plates 2 and is integrated with each steel plate 2 by the anti-slip member 4, and the ends of the columns 4 are brought into contact with each other. It is formed by a plurality of columnar composite members 1B whose abutting parts are welded together, and each plate-like composite member 1B is connected to a steel plate 2 formed in a rectangular cylindrical shape, and a longitudinal side of this steel plate 2 inside the steel plate 2. A plurality of partition plates 3 are arranged at appropriate intervals along the direction and have an opening 6 in the center.
A liquid characterized by comprising: a non-slip member 4 fixed to the inner surface of the steel plate 2; and a conchnote 5 driven into the steel plate 2 and integrated with the steel plate 2 by the anti-slip member 4. Storage tank.