JPS60102448A - Pole connecting method - 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 The present invention relates to a method of constructing a tall ball by connecting a lower ball and an upper pole.

Conventionally, heights with a height of 20 to 30 m above the ground (such as utility poles and lighting poles) were constructed by connecting two concrete balls. /
(1) on the ground surface, and fill the lower port iv (1) with earth and sand (3) that supports the upper port tv (2).
) on top of the sealing concrete (4), and after the concrete (4) hardens, insert the upper pole /L/ (2) into the lower pole (1) and lower the lower pole /L/( 1) Place the upper pole/l/(2) on the concrete (4) inside, and place a hard mortar/l/ for joining between the outer peripheral surface of the upper pole (2) and the inner peripheral surface of the lower ball (1). l/(51 packed, lower port/I/
(1) Epoxy resin mortar for sealing (6
). However, the lower land established on the surface of the earth /I/
The work of filling earth and sand (3) into (1) and placing concrete (4) requires a lot of effort as the worker has to climb up to the upper opening of (1). This increases labor costs. Further, since the sealing concrete (4) for preventing the hard-mixed mortar (5) from leaking takes about three days to a week to harden, the construction period becomes long.

The object of the present invention is to eliminate the disadvantages of the more conventional methods mentioned above,
To provide a ball connection construction method that is low in construction cost and short in construction period.

Next, examples of the present invention will be described.

First Example (See Figures 2 and 3) The cylindrical lower ball (7) made of reinforced concrete used in the pole connection construction method of this example has an iron support rod (8) on its inner peripheral surface. A support part for supporting the tapered cylindrical upper port /l/(+1) made of reinforced concrete is formed by a large number of support rods (8) protruding at equal intervals and at the same height and arranged radially. Note that the base end of each support rod (8) is welded to each vertical reinforcement (9) of the lower pole (7).

When constructing a high pole by connecting the above lower hoe /l/ (7) and upper ball (lfl), install the lower ball (7) on the ground surface and insert the upper ball Q1 into the lower pole (7). Then, place the lower end of the upper port/L'GO, which has been fitted with a ring-shaped rubber tube sealant (1]) and glued, onto the support part (8) in the lower hose /l/ (7). A highly elastic sealing material (l) is applied to the outer peripheral surface of the lower end of the upper pole and the lower bow/L.
The hard mortar for joining is press-fitted between the inner circumferential surfaces of the upper pole (7) and the outer circumferential surface of the upper pole (L/L) located above the sealing material DI) and the inner circumferential surface of the lower pole (7). Fill the road and lower the pole (7
) Place epoxy resin mortar (14) for sealing on the upper opening of the upper end of the opening, and connect the upper pole +10 to the lower pole (forced).

Second Embodiment (Refer to Figures 1 and 5) In the hole connection construction method of this example, the lower hole v (7) has a support 4 (
8+ 1E- are provided protrudingly, and iron reinforcing rods (141) that support the tips of the support rods are provided diagonally on the lower side of each support rod (8), and a circular iron plate is provided on the upper side of the support rod (8). The bottom plate (l
Weld e to 1 strong support part (81, (14), (
It forms In. Since the other points are the same as in the previous example, the same reference numerals are given to No. 1/113 (1 and FIG. 5), and the explanation thereof will be omitted.

Third Embodiment (See Figures 4 to g) In this example, when forming the support part on the lower bow /I/(7), the upper end (lη) is attached to the two shown in Figure 5. The bent longitudinal reinforcements aQ are arranged at equal intervals in the cylindrical surface, and circular reinforcements (to) are welded at equal intervals on the outer periphery, and a circular ring is placed above the upper end αη bent inside the vertical reinforcements uQ. A rectangular piece of metal made of welded iron plates was buried in the lower pole (1). As shown in Figs. The other points are the same as in the first embodiment, such as forming a support part on which the bottom plate 09 is fixed to the upper part of the support rod αη+)Il+, so the same reference numerals are used in FIGS. 4 and 7. The explanation thereof will be omitted.

1I Example (Refer to Figures 1 and 70) In this example, the support part in the lower bow) V (7) is the lower bow) They are strung together and arranged in a parallel grid pattern. In addition, each end of each support rod (a) is welded to each vertical strip (9) of the lower ball, respectively.

Other points are the same as in the first embodiment, so the same reference numerals are given to FIG. 70 and FIG.

Fifth Embodiment (Refer to Figure 1) In this example, the inner diameter of the lower pole (71) is made larger at the upper part and smaller at other parts, and a step is formed inside the lower pole (7). c2υ is formed, and the step part C]) of C is used as a support part. Other points are the same as in the first embodiment.

As is clear from the description of the above embodiments, the present invention has the following features:
Establish a cylindrical lower pole with a support part inside to support the upper ball, insert the upper ball into the lower ball, and place the upper ball under the support part in the lower pole! 1゛M part is mounted, a sealing material is fitted between the outer circumferential surface of the lower end of the upper ball and the inner circumferential surface of the lower ball, and mortar is placed between the outer circumferential surface of the upper pole and the inner circumferential surface of the lower ball. This is a pole connection construction method characterized by connecting the upper pole to the lower pole.

In this connection construction method, the upper ball is supported by a support part pre-installed inside the lower pole, and a sealing material is fitted between the upper and lower poles, so earth and sand are not packed into the lower pole as in the conventional method. There is no need for concrete pouring, so there is no need for much labor and construction costs are low. Also, unlike the conventional method, it is necessary to wait for the concrete poured in the lower gate to harden, resulting in a short construction period.

[Brief explanation of drawings]

FIG. 1 is a partial longitudinal cross-sectional view of a pole constructed using a conventional method, FIG. 2 is a partial vertical cross-sectional view of a pole constructed using the construction method of the first embodiment of the present invention, and FIG. Figures 1 and 2 are enlarged cross-sectional views taken along the line ■-■, and Figures 1 and 2 are partial vertical cross-sectional views of poles constructed using the construction method of the second embodiment, and Figure S is an enlarged cross-sectional view taken along the lines V-■ of Figures 1 and 2. FIG. 4 is a partial vertical cross-sectional view of a pole constructed using the construction method of the third embodiment, and FIG.
The vu-vn line cross-sectional enlarged view of the figure, the second figure is a perspective view 1g1 of the hardware buried in the lower pole of the same pole, and the second figure is a partial longitudinal section of the pole constructed by the construction method of the first example. The plan view and FIG. 70 are an enlarged cross-sectional view taken along the line X--X in FIG. 9, and FIG. 1/FIG. 7 is a partial vertical cross-sectional view of a pole constructed by the construction method of the fifth embodiment. 7: Lower ball 8: Support rod, support part 10: Upper bow / I / 11: Seal paulownia 12: Freezing mortar / l / 14: Reinforcement rod, support part 15: Bottom plate, support part 1
7: Support rod, support part 19: Bottom plate, support part 20: Holding rod, support part 21: Step part, support part 4 Figure 7'6

Claims (2)

[Claims] (1) Establish a cylindrical lower ball with a support part inside to support the upper pole, insert the upper hole into the lower ball, and attach the lower end of the upper 7Iζ-ru to the support part in the lower pole. Place the upper pole on a rack, fit a sealant between the outer circumferential surface of the lower end of the upper pole and the inner circumferential surface of the lower pole, apply mortar between the outer circumferential surface of the upper pole and the inner circumferential surface of the lower ball, and then install the lower pole. A ball connection construction method characterized by C connecting an upper ball to a ball. (2) The method for connecting balls according to claim 1, wherein the sealing material is a rubber tube.