JPH0417632Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to supporting concrete pillars such as reinforced concrete columns and iron columns, and is especially useful when buried underground, avoiding underground obstacles. This relates to the improvement of crank-type pillars to be erected.

[Conventional technology]

Conventionally, this type of crank type standpost was developed in the 1980s.
The one described in Publication No. 190836 is known. In this case, embedded nuts are opened on the top surface of one end of the concrete support beam and on the bottom surface of the other end, and the holes drilled in the metal fitting on the top surface of the support are made to correspond to the embedded nuts opened on the bottom surface, and the bolts are screwed into the holes. Tighten the bolts to removably fix the concrete pedestal and support, and match the through-holes drilled in the lower end metal fittings of the columns to the upper-opening embedded nuts, and then screw in and tighten the bolts. The concrete support beam and the column are fixed together, and the whole is formed into a crank shape, and the column is erected.

[Problem that the invention attempts to solve]

In the conventional product, the opening for the embedded nut for fixing the support is provided on the bottom of the concrete pedestal, making it difficult to connect the concrete pedestal and the support. It is necessary to connect the beam and the support. Then, a support insertion hole is drilled in the ground, the support is inserted and buried in this insertion hole, and the concrete pedestal is fixedly supported on the lower surface of the ground, and the column is erected by bolting to the embedded nut on the top surface of the other end. . Therefore, since the concrete pedestal and the support are integrated in advance, it is impossible to backfill the excavated hole after drilling a support insertion hole and inserting the support into the excavation hole. I can't measure the integration with. In addition, there are various problems such as corrosion of the end fittings, embedded nuts, bolts, etc. of the support and the column, and the support base of the fixing part becomes extremely weak, leading to collapse of the column.

[Means for solving problems]

This idea was proposed as a solution in view of the above problems, and was designed to integrate the support with the ground and prevent corrosion of flanges, bolts, nuts, etc. , a groove for supporting the column is bored on one side, a plurality of anchor bolts are buried in this groove, and a stepped support insertion hole is formed on the other side, and a groove is inserted into the stepped part. A concrete block with a plurality of anchor bolts embedded therein is buried underground, a support body with a flange fixed to the upper end is inserted into the support insertion hole, and the bolt insertion holes penetrated through the flange are inserted into the support body. Anchor bolts are inserted and connected, and mortar or the like is inserted into the gap between the support insertion hole and the support through the bolt insertion hole provided in the flange. The lower end of the column is joined to the anchor bolt buried in the groove, and the support insertion hole and the upper surface of the joint in the groove are also filled with mortar or the like to complete the entire structure. The purpose is to provide an integrated crank-type pedestal.

[Effect]

This idea involves inserting the support into the support insertion hole on the other side from the top surface, and then inserting the anchor bolt embedded in the step into the bolt insertion hole of the flange fixed to the top end of the support. and tighten it. At this time, the lower part of the support is buried in a support insertion hole excavated underground. Then, the upper and lower surfaces of the flange are filled with mortar or the like in the support insertion hole and integrated. At this time, on the lower surface of the flange, the gap between the support and the support insertion hole drilled through the bolt insertion hole is filled with the mortar or the like. Therefore, the ground and the supporting body are integrally hardened by the filled mortar, and the supporting body and the column are integrally hardened by the bolts and mortar, so that the supporting base becomes strong. Further, a flange is fixed to the lower end of the column, and an anchor bolt insertion hole is provided through the flange. Therefore, in order to erect the column in the groove of the concrete block, first, an anchor bolt is inserted into a hole in the flange fixed to the lower end of the column and tightened with a nut. and,
The grooves are filled with mortar or the like and integrated.

〔Example〕

An embodiment of this invention will be described below in detail with reference to the accompanying drawings. 1 is a concrete block buried underground close to the ground surface. Although this embodiment is shown in the form of a rectangular block, the shape is not limited thereto. 2 is a groove bored on one side of the concrete block 1. In this example figure, it has a square shape, but
This shape should also not be specified. Furthermore, the concave groove (2)
Anchor bolts 3, 3, . . . are provided protruding from the bottom surface. In addition, in the illustrated example, the anchor bolt...
bend the lower part and make concrete block 1
It is integrally buried inside. Reference numeral 4 denotes a column such as a reinforced concrete column or an iron column, and a flange 5 is fixed to the lower end of the column 4. Furthermore, insertion holes 5a, 5a, . . . for the anchor bolts 3, 3, . . . are provided through the flange 5. Preferably, the shape of the flange 5 should match the shape of the groove 2. On the other hand, on the other side of the concrete block 1, an insertion hole 7 of the support body 6 is provided. The length of this support body 6 is formed to a legal length that can withstand the support of the columnar body 4, but the cross-sectional shape is not limited to a circular shape, but may be a rectangular shape. Further, a flange 8 is fixed to the upper end surface of the support 6, and
This flange 8 has bolt insertion holes 8a, 8a...
is formed long toward the center. Further, the inside of the support insertion hole 7 is stepped 7a so that the flange 8 can be placed thereon, and the stepped portion 7a has bolt insertion holes 8a, 8a provided in the flange 8.
Anchor bolts 9, 9, . . . , which are inserted into . In the illustrated example, the anchor bolts 3, 3, . . . are integrally buried in the concrete block 1 with their lower portions bent. Furthermore, the hole diameter of the lower part of the stepped portion 7a of the support body insertion hole 7 is also formed to be larger than the outer diameter of the support body 6, and the bolt insertion holes 8a, 8a, . . . ... are formed so as to face the hole in the lower part of the support insertion hole 7.
In the figure, reference numerals 10, 10, . . . indicate underground objects such as electric wires and cables. 11 indicates a stratum near the ground surface. Therefore, in this embodiment diagram, when the column 4 is erected, the position of the erected column is exactly when it encounters an obstacle to erect the pillar, such as electric wire cables 10, 10, etc. buried underground. As shown in FIG. 2, the pillar is erected on top of the obstacle without changing the position of the erected pillar. That is, the stratum 11 on which the pillar is to be erected is excavated, and the concrete block 1 is buried in this hole. Then, the support 6 is inserted into the support insertion hole 7 on one side.
is inserted, its lower part is buried in the ground, and the flange 8 fixed on the upper end surface is inserted into the support insertion hole 7.
It is placed on the stepped portion 7a in the middle of the. At this time, the anchor bolts 9, 9, .
8a... and secure with nuts. Furthermore, a filler F such as mortar or resin is injected from the inner side of the bolt insertion holes 8a, 8a... provided in the flange 8, and a filler F such as mortar or resin is injected between the support 6 and the lower part of the support insertion hole 7. , and the gap between the support insertion hole and the support, and further, the support insertion hole 7 on the upper surface of the flange 8 is also filled with the filler F, and the filler F is integrally hardened. After the underground support section is constructed in this way, the lower end of the column 4 is inserted into the groove 2 bored on the other side of the concrete block 1 and erected. At this time, bolt insertion holes 5a of the flange 5 fixed to the lower end of the column 4,
Insert anchor bolts 3, 3... into 5a..., respectively, and tighten with nuts. Thereafter, a filler F such as mortar or resin, which also serves as rust prevention for bolts and flanges, is injected into the upper surface and into the groove 2, and is hardened and integrated. The top surface of these is then covered with topsoil. In such a case, the pole will be erected at a predetermined position, and even if there are obstacles such as electric wire cables 8, 8, etc. below, the pole can be erected at this upper surface position.
That is, the lower part of the support 6 is buried in the ground, and the upper end is fixed with anchor bolts 9, 9, etc. in the support insertion hole 7, and is drilled for inserting the support. By filling the gap between the hole and the support body and the upper part thereof with the filler F which also serves as rust prevention, the support base is firmly integrated. Also, as mentioned above,
A filler such as mortar is injected into the gap between the support and the support, allowing it to be integrated with the strata. Further, the direct support of the column 4 itself is also strong, and the work is easy because both the support and the column can be bolted downward in an excavated hole in the stratum.

[Effect of idea]

This invention eliminates the defects of this type of conventional crank type pedestal, as explained in detail in the above-mentioned embodiment. In other words, the pole can be erected at the upper surface of the location without causing any obstruction to underground objects such as electric wires and cables buried underground, and the workability is also extremely good. Furthermore, the pillar foundation becomes stronger, and corrosion of bolts, nuts, flanges, etc. can be prevented at the same time.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with Fig. 1 being a slope view of a concrete block, and Fig. 2 being an explanatory longitudinal cross-sectional view of the concrete block when it is buried underground and erected. Code explanation, 1... Concrete block, 2...
... Concave groove, 3, 9 ... Anchor bolt, 4 ... Column, 5, 8 ... Flange, 5a, 8a ... Bolt insertion hole, 6 ... Support body, 7 ... Support insertion hole, F
……filler.

Claims (1)

[Scope of utility model registration request] A groove for supporting the column is bored on one side, a plurality of anchor bolts are buried in this groove, and a stepped support insertion hole is formed on the other side. A concrete block with a plurality of anchor bolts embedded therein is buried underground, a support body having a flange fixed to the upper end is inserted into the support insertion hole, and the anchor is inserted into the bolt insertion hole penetrated through the flange. The bolts are inserted and connected, and mortar or the like is applied between the support insertion hole and the support through the bolt insertion hole provided in the flange and the gap between the support insertion hole and the support. Fill and integrate, connect the lower end of the column to the anchor bolt buried in the groove, and fill the support insertion hole and the upper surface of the connection in the groove with mortar or the like to integrate the whole. A crank-shaped pillar.