JPS63223273A - Building of high water tank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of constructing an elevated water tank in which an elevated water tank body is installed at the top of a high support in order to obtain a desired water head.

[Conventional technology] Conventionally, only one elevated water tank! When installing, the lowest pillar was first erected on the foundation, and additional pillars were added one after another to the desired height above this lowest pillar. Later, a method was adopted in which an elevated water tank was formed at the top of this support.

[Problems to be Solved by the Invention] However, in the above construction method, since the pillars are successively added upward, the scaffolding must be built higher accordingly, which makes the work difficult. In addition to prolonging the construction period, there were also safety issues as work at heights continued for a long period of time.

Therefore, the present invention has been made to solve the problems of the prior art, and provides an elevated water tank construction method that does not require scaffolding, is easy to work with, shortens the construction period, and improves safety. The purpose is to

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an elevated water tank having an elevated water tank body on the top of a support erected on a foundation. ! 3. A pillar located at the top is erected on the foundation, and pillars are sequentially added downward on the outer periphery of the pillar to form a concentric circle. After fixing the pillar located at the outermost periphery on the foundation, The pillars to be installed are lifted up to their respective heights, and the lower ends of the pillars are connected to the upper ends of the pillars that are added below, thereby constructing a pillar with a viewing height of °Cwr.

[Function] Forms a support from the top to the bottom on the foundation,
The pillars located at the top are lifted up to their respective heights, and the lower ends of the pillars are connected to the upper ends of the branches that are added below, so that the pillars can be built one by one to a predetermined height, making the work easier. can be done in low places and does not require scaffolding.

[Example] An example of the present invention will be described below in detail based on the accompanying drawings.

First, as shown in FIG. 2, the support column 2a located above J111 is erected, and as shown in FIGS.
2c, 2d, and 2e are formed concentrically. In this case, these struts 28 to 2e are formed into frustoconical cylinders whose outer diameter at the lower end is approximately equal to the inner diameter at the upper end of the strut to be added below. In addition, the outer diameter of the lower end is
The inner diameter may be smaller than the inner diameter of the upper end of the strut to be added below, but if it is made larger, the struts 28 to 2e can be connected in a pre-scopic shape.

After the pillars 28 to 2e are formed concentrically on the foundation 1 in this manner, the branch 2f located at the outermost periphery is then fixed onto the foundation 1 with anchor bolts 3 or the like.

Next, as shown in Figure 5, the branch office 2 located above
The uppermost column 2f, which has been formed in advance at a low point at the upper end of the column a, is suspended by a crane 4 or the like and connected by suitable connecting means such as a bottle, bolt, or welding. Note that the uppermost column 2t may be formed integrally with the uppermost column 2a.

Next, the uppermost column 2'' is lifted up by a crane 4, etc., and the uppermost column 2a is lifted by that height, and the lower end and the lower part of the column 2a are spliced. The upper end of the support column 2b is connected with the above-mentioned connecting means. Through this procedure, as shown in FIG.
The lower end portions of the struts 2b that have been lifted one after another are connected to the upper end portions of the struts 2C that are added below.

In this way, as shown in Fig. 111, once the pillar 2 of a predetermined height is constructed, the elevated water tank body 5, which has been formed at a low place in advance, is suspended and attached to the top of the pillar, thereby completing the elevated water tank. Ru. A water tank is formed inside the elevated water tank body 5, and an observation deck, a restaurant, etc. are also formed in some cases.

In this way, the pillars 28 to 2e are divided into predetermined lengths.
(Incidentally, 2a and 2f may be integrated in advance.) are formed concentrically on 1111, and the support 2a is lifted from the center side by that height, and the support 2b is added immediately below. Since they are connected, work such as welding, polishing, painting, etc. can be carried out at a low place, no scaffolding is required, and the elevated water tank can be constructed safely and easily.

Additionally, since there is no need to assemble or remove scaffolding, the construction period can be shortened.

Note that the shapes of the pillars 28 to 2e are not limited to the above embodiments,
For example, it may be cylindrical. In addition, in the embodiment, the elevated water tank body 5 was installed after the pillars 2 were completed, but the elevated water tank body 5 and the pillars 28 to 2f (however, 2e
Excludes. ) can be lifted simultaneously by the crane 4, etc., attach the elevated water tank body 5 to the topmost support 25 in advance, and then lift the branches 28 to 2f (excluding 2e). You may also construct it.

[Effects of the Invention 1 In summary, the present invention exhibits the following excellent effects.

■ The pillars located at the top of the foundation and the pillars added below it are formed in a concentric circle, and the pillars located at the top are lifted up to the same height and sequentially connected with the pillars added below it to a predetermined position. Since the pillars are constructed at a relatively low height, the work can be carried out at a relatively low location, making the work quick and easy, and eliminating the need for scaffolding and assembly and removal, thereby shortening the construction period.

■ Also, the reduction in work at heights increases work safety.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view showing the installation process of an elevated water tank, and Figs. 2 to 4 show the process of forming concentric columns on the foundation. FIG. 5 is a perspective view showing the process of attaching the uppermost column, and FIGS. 6 and 7 are perspective views showing the process of lifting the column height by height and connecting it to the column below. . In the figure, 1 is a foundation, 2 is a column, 2a is a column located at the top, 2b is a column added below, 2e is a column located at the outermost periphery, and 5 is an elevated water tank body. Patent Applicant Ishikawajima Tank Construction Co., Ltd. Representative Patent Attorney Nobuo Kinutani Figure 2 Figure 3 Diagram n Figure 4 Figure 6

Claims (1)

[Claims] When installing an elevated water tank having an elevated water tank body on the top of the pillars erected on the foundation, the pillars located at the upper part are erected on the foundation, and the pillars are successively added downward to the outer periphery of the pillars. are formed into concentric circles, and after fixing the outermost pillar on the foundation, the upper pillar is lifted up to its height, and its lower end is connected to the upper end of the pillar to be added below. A method for constructing an elevated water tank, characterized by constructing pillars of a desired height by connecting them.