JPS63945Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a columnar support structure particularly suitable for constructing a support for a power transmission line on the ground made of rock such as the edge of a cliff.

Conventionally, in such places, it has been extremely difficult to construct power transmission line supports by directly drilling into the bedrock, and this work has been problematic in that it is dangerous.

The present invention was developed in view of these problems, and involves driving reinforcing bars into the ground through reinforcing bar insertion holes provided in a block body installed on bedrock, and applying mortar or the like to the gaps between the reinforcing bars and the reinforcing bar insertion holes. Fill with grout, use this grout to fix the reinforcing bars and block body together, fix the block body to the rock via the reinforcing bars, and then insert the lower end of the column into the column insertion hole provided in the block body. The present invention provides a support groove structure for a column in which the column is fixed to a block by filling the gap between the column and the column insertion hole with grout.

The embodiments of the present invention will be explained with reference to the drawings: 1
is a block body made of concrete placed on the ground, and is formed into a cubic shape with a square cross section with the corners cut out.A column insertion hole 2 is inserted through the center of the block, and holes are formed in the surrounding corners. Four reinforcing bar insertion holes 3 are provided through the hole.

Reference numeral 4 denotes a reinforcing bar that is driven into the ground through a reinforcing bar insertion hole 3. A grout 5 such as mortar is filled in the gap between the surface of the reinforcing bar and the reinforcing bar insertion hole 3, and the grout 5 hardens to connect the reinforcing bar 4 and the block body 1. It is fixed in one piece.

Reference numeral 6 denotes a column whose lower end is inserted into the column insertion hole 2. The gap between the lower end and the column insertion hole 2 is filled with grout 7 such as mortar, and as the grout 7 solidifies, the column is closed. The lower end of the body 6 is integrally fixed to the block body 1.

In the figure, 8 is a arm attached to the upper end of the column 6, and 9
is a power transmission line installed on the arm 8.

To construct the column support structure of the embodiment configured as described above, first, the block body 1 is installed at an appropriate location on the bedrock, and then the reinforcing bars 4 are driven into the bedrock through the reinforcing bar insertion holes 3, and the reinforcing bars 4 The reinforcing bars 4 and the block body 1 are fixed together by filling the gap between the reinforcing bars 4 and the reinforcing bar insertion holes 3 with grout 5 and solidifying the grout 5.

Next, the lower end of the column 6 is inserted into the column insertion hole 2, and the gap between the column 6 and the column insertion hole 2 is filled with grout 7 and solidified, thereby blocking the lower end of the column 6. The construction of the column 6 is completed by fixing it integrally to the body 1.

As described above, the column support structure of the present invention is a cubic structure having a column insertion hole 2 in the center and reinforcing bar insertion holes 3 in at least four corners of the periphery of the column insertion hole 2. A concrete block body 1 is installed on the ground, and a reinforcing bar 4 having a smaller diameter than the through hole 3 is driven into the ground through the reinforcing bar insertion hole 3 of the block body 1, and a reinforcing bar 4 with a diameter smaller than that of the through hole 3 is inserted into the column insertion hole 2 from the insertion hole 2. The lower end of the small-diameter column 6 is inserted, and the gap between the reinforcing bar insertion hole 3 and the reinforcing bar 4 and the gap between the column insertion hole 2 and the column 6 are filled with grouts 5 and 7, respectively.
7, the reinforcing bars 4 and the column 6 are fixed to the concrete block 1, so the lower end of the column 6 is grouted over the entire length of the insertion hole 2 penetrated through the cubic concrete block 1. 7, the reinforcing bars 4 driven into the rock through the reinforcing bar insertion holes 3 can also be securely fixed to the block 1 via the grout 5. With an extremely simple structure, the column 6 can be reliably and stably erected and supported on the bedrock via the block 1, and can be used without danger even in places where it has traditionally been difficult to construct columns. Column construction work can be done easily.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall view, FIG. 2 is a plan view of a main part, and FIG. 3 is a sectional view taken along the line A--A in FIG. 2. 1...Block body, 2...Column body insertion hole, 3...
Reinforcing bar insertion hole, 4... Reinforcing bar, 6... Column, 5, 7...
…grout.

Claims (1)

[Scope of utility model registration request] A cubic concrete block body 1 having a column insertion hole 2 in the center and reinforcing bar insertion holes 3 in at least four corners around the column insertion hole 2 is installed on the ground. A reinforcing bar 4 with a smaller diameter than the insertion hole 3 is driven into the ground through the reinforcing bar insertion hole 3 of the body 1, and a lower end portion of the column 6 with a smaller diameter than the insertion hole 2 is inserted into the column insertion hole 2. The grouts 5 and 7 are filled in the gap between the reinforcing bar insertion hole 3 and the reinforcing bar 4 and the gap between the column insertion hole 2 and the column 6, respectively, and the grouts 5 and 7 connect the reinforcing bar 4 and the column 6. A column support structure fixed to a concrete block body 1.