IES20060879A2 - Reinforced concrete tank - Google Patents

Abstract

A method for manufacturing reinforced concrete liquid retaining tank includes forming a reinforced concrete base (2). A number of prefabricated side wall panels (4) are mounted upstanding on the base (2) end to end to form an endless side wall on hte base (2). Each side wall panel (4) has an inner wall (6) and outer wall (7) spaced-apart and parallel and interconnected by a steel reinforcing frame (8). Upstanding tie bars (16) on the base (2) locate between the inner wall (6) and outer wall (7) of each wall panel (4). an opening (20) between the inner wall (6) and outer wall (7) is filled with concrete which is set to form the tank having a solid reinforced concrete side wall upstanding on the base (2). <Figure 2>

Description

This invention relates to a reinforced concrete tank.

The invention relates in particular to reinforced concrete tanks and a method for 10 manufacturing such tanks which may be used, for example, as slurry tanks, liquid reservoir tanks, swimming pools and the like.

Statements of Invention According to the invention, there is provided a method for manufacturing a reinforced concrete liquid retaining tank, including: forming a reinforced concrete base with upstanding tie bars on the base defining a periphery of the tank, prefabricating a plurality of reinforced concrete side wall panels, each side wall panel having an inner wall and an outer wall spaced-apart from the inner wall and substantially parallel thereto, said inner wall and outer wall being interconnected by a metal reinforcing frame, one side of the reinforcing frame being embedded in the inner wall and the other side of the reinforcing frame being embedded in the outer wall, mounting a number of the reinforced concrete side wall panels upright on the base end to end to form an endless side wall upstanding on the base, engaging the upwardly extending tie bars on the base between the inner and outer walls of the side wall panels and supporting each side wall panel in an upright orientation, filing the opening between the inner and outer walls of the side wall panels with -2concrete, and setting the concrete to form the tank having a solid reinforced concrete side wall upstanding on the base.

The side wall panels may be supported in any suitable fashion on the base. Conveniently, one or more stays may be mounted between each side wall panel and the base and secured to each of the side wall panel and the base to support the side wall panel upstanding on the base. If desired, such stays may be adjustable. This may be facilitated, for example, by incorporating a bottle screw in the stay.

In another embodiment, the method includes the step of applying a sealing material between adjacent side wall panels and/or between each side wall panel and the base. Any suitable sealing material may be provided, for example, a bitumen paste seal.

In another embodiment, the method includes the step of forming a channel in a top of the base around a periphery of the tank for subsequent alignment with the opening between the inner wall and outer wall of the side wall panels. Thus, when the opening is backfilled with concrete, the side walls are keyed onto the base by the concrete.

It is generally desirable to vibrate the concrete when it is backfilled into the opening between the inner and outer side walls of the side wall panels for air exclusion.

If desired, the inner and outer walls of each side wall panel may be staggered at their ends to facilitate improved interlocking of adjacent side wall panels.

Detailed Description of the Invention The invention will be more clearly understood by the following description of some embodiments thereof, given by way of example only, with reference to the accompanying drawings, in which: -3Fig. 1 is a perspective view of a reinforced concrete tank according to the invention; Fig. 2 is a detail, partially sectioned, perspective view showing portion of the tank; Fig. 3 is a detail sectional elevational view showing portion of the tank; Fig. 4 is a detail sectional plan view showing a side wall portion of the tank; Fig. 5 is a detail sectional plan view showing portion of a side wall of the tank at a corner of the tank; Fig. 6 is a detail sectional elevational view showing a reinforced concrete side wall panel used in the construction of the tank; Fig. 7 is a view similar to Fig. 6 showing the side wall portion supporting a cattle slat; Fig.8 is a sectional plan view of a side wall panel; Fig. 9 is a sectional elevational view of an inner portion of the side wall panel; Fig. 10 is a sectional elevational view of an outer portion of the side wall panel; and Fig. 11 is a sectional end elevational view of the side wall panel.

Referring to the drawings, there is illustrated a reinforced concrete tank according to the invention, indicated generally by the reference numeral 1. The tank essentially comprises a reinforced concrete base 2 with an upstanding endless reinforced concrete side wall 3 which together form a tank for the retention of liquids, such as a slurry tank, for example. The side wall 3 is formed by a number of juxtaposed reinforced concrete side wall panels 4 of twin wall construction which, when mounted -4together on the base, have concrete backfilled between the twin walls.

Each side wall panel 4 has an inner wall 6 and an outer wall 7 spaced-apart from the inner wall and substantially parallel thereto. The inner wall 6 and outer wall 7 are interconnected by a steel reinforcing frame 8. An inner side 9 of the reinforcing frame 8 is embedded in the inner wall 6 and an outer side 10 of the reinforcing frame 8 is embedded in the outer wall 7. The reinforcing frame 8 essentially comprises a reinforcing mesh 9 in the inner wall 6 and another reinforcing mesh 10 in the outer wall 7 interconnected by intermediate reinforcing members 11, as indicated in the drawings.

In constructing the tank 1, the reinforced concrete base 2 is formed. Reinforcing elements 15 for the base 2 can be seen in Fig. 3. As can be seen in Figs. 2 and 3, the base 2 is formed with upstanding tie bars 16 defining a periphery of the tank 1. A channel 17 is preferably formed in the top of the base 2 around a periphery of the tank 1for subsequent alignment with an opening 20 between the inner wall 6 and outer wall 7 of the side wall panels 4. Each side wall panel 4 is transported to the site and is then lifted into place on the base 2 aligning the channel 17 with the opening 20 between the inner wall 6 and outer wall 7 and inserting the tie bars 16 into the opening 20.

Tie bars 25 are used to support the side wall panels 4 on the base 2. Each tie bar 25 has a mounting plate 26, 27 at each end for attachment to the side wall panel 4 and base 2 respectively. The tie bar 25 may include a bottle screw 28 for length adjustment and assisting in correctly positioning the side wall panel 4 on the base 2.

It will be noted from Figs. 4 and 8 that reinforcing bars 28 project outwardly of each inner wall 6 and are cranked so they can be inserted in the opening 20 formed between the inner wall 6 and outer wall 7 of the next adjacent side wall panel 4. Additional reinforcing elements/ties 29 may also be mounted in the opening 20 at the join between two side wall panels 4, as shown in Fig. 4 and Fig. 5. In Fig. 5, the corner construction is shown in which the inner wall 6 is stepped inwardly at the end from the outer wall 7 to facilitate formation of the corner 30. j|U ου 67 9 -5The opening 20 between the inner walls 6 and outer walls 7 ot the side wall panels 4 are filled with concrete which is then set to form the tank having a solid reinforced concrete side wall upstanding on the base 2.

Sealing material may be applied between adjacent side wall panels 4 and/or between each side wall panel 4 and the base 2.

After the concrete has set in the opening 20, the tie bars 25 can be removed and any finishing required can be carried out on the tank 1.

Fig. 7 shows the mounting of cattle slats 40 on top of the side walls 4 when the tank 1 is used as a slurry tank.

The invention is not limited to the embodiments hereinbefore described which may be 15 varied in both construction and detail.

Claims (5)

1. A method for manufacturing a reinforced concrete liquid retaining tank, including; forming a reinforced concrete base with upstanding tie bars on the base defining a periphery of the tank, prefabricating a plurality of reinforced concrete side wall panels, each side wall panel having an inner wall and an outer wall spaced-apart from the inner wall and substantially parallel thereto, said inner wall and outer wall being interconnected by a metal reinforcing frame, one side of the reinforcing frame being embedded in the inner wail and the other side of the reinforcing frame being embedded in the outer wall, mounting a number of the reinforced concrete side wall panels upright on the base end to end to form an endless side wall upstanding on the base, engaging the upwardly extending tie bars on the base between the inner and outer walls of the side wall panels and supporting each side wall panel in an upright orientation, filing the opening between the inner and outer walls of the side wall panels with concrete, and setting the concrete to form the tank having a solid reinforced concrete side wall upstanding on the base.

2. A method as claimed in claim 1, including the step of applying a sealing material between adjacent side wall panels and/or between each side wall panel and the base.

3. A method as claimed in claim 1 or claim 2, including the step of forming a channel in a top of the base around a periphery of the tank for subsequent 7alignment with the opening between the inner wall and outer wall of the side wall panels.

4. A method for manufacturing a reinforced concrete tank substantially as 5. Hereinbefore described with reference to the accompanying drawings.

5. A reinforced concrete tank whenever produced by the method as claimed in any preceding claim.