KR101701123B1 - Fixture for connecting concrete piles and method for connecting concrete piles using the same - Google Patents

Fixture for connecting concrete piles and method for connecting concrete piles using the same Download PDF

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Publication number
KR101701123B1
KR101701123B1 KR1020160016451A KR20160016451A KR101701123B1 KR 101701123 B1 KR101701123 B1 KR 101701123B1 KR 1020160016451 A KR1020160016451 A KR 1020160016451A KR 20160016451 A KR20160016451 A KR 20160016451A KR 101701123 B1 KR101701123 B1 KR 101701123B1
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South Korea
Prior art keywords
fastener
concrete
file
concrete pile
bolt fastening
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KR1020160016451A
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Korean (ko)
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김민각
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김민각
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
    • E02D5/526—Connection means between pile segments
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The present invention relates to a fastener for connecting a lower concrete pile and an upper concrete pile, comprising: a first fastener (210) fastened to a front end of the lower or upper concrete piles (20, 30); and a second fastener (250) coupled to the first fastener (210). Thus, even when positions of bolt coupling holes are different, because manufacturers of the upper concrete pile and the lower concrete pile are different from each other, the present invention allows to conveniently connect the upper and the lower concrete pile together.

Description

Technical Field [0001] The present invention relates to a fastening member for connecting a concrete file and a concrete file connecting method using the fastening member,

The present invention relates to a concrete pile, and more particularly, to a concrete pile fastening and a concrete pile connecting method for firmly connecting concrete piles formed in the ground during a ground reinforcement work.

During the construction of the building, the pile is pushed to a certain depth in order to reinforce the ground, and steel pipe or high strength concrete is used depending on the material. A high strength concrete pile is a file that is made by inserting a stressed steel wire in the inner side and then putting the high strength concrete into the mold and turning it to increase the strength.

The high-strength concrete pile fabricated as described above is pushed to a certain depth or more according to the size of the building or the ground condition. At this time, one or more high-strength concrete pile files are connected to each other if necessary.

Generally, in order to construct high-strength concrete files by connecting them, a file is classified into a lower file, a middle file, and an upper file. Then, a metal joint cap is attached to each end of the file according to the depth of the ground, The joining operation of the concrete file is performed by welding the cap.

FIG. 1 is a view showing an example of a conventional joint cap for a concrete pile, in which a joint cap 10 for a concrete pile comprises a circular support plate 12 having a hole 13 at the lower center of a cylindrical metal body 11, .

The joint cap 10 is made of a metal material so that it can be welded to another joint cap. The joint cap 10 is fixed to the lower end of the concrete pile and is assembled with a joint cap of another concrete pile The welding operation is terminated by welding.

2 and 3 are views showing a jointing process of a conventional joint cap.

2, the second concrete pile 30 is lifted up on the first concrete lower pile 20 in a state in which a top part of the first concrete pile 20 pierced on the ground G is exposed, The first joint cap 21 and the second joint cap 31 fixed to the concrete lower pile 20 and 30 are brought into close contact with each other.

Next, as shown in FIG. 3, the first joint cap 21 and the second joint cap 31 are welded to each other to weld the first concrete file 20 and the second concrete file 30 Connect. After the connection between the first concrete file 20 and the second concrete file 30 is completed, the concrete pile is continuously pierced to the desired depth.

However, the method of connecting the concrete file by welding the joint cap for the concrete pile has the following problems.

First, it is difficult to maintain the exact straightness of the upper and lower piles when welded, because the welding is performed while the crane is holding the upper file with the wire while each metallic joint cap is in contact with the two concrete files to be joined. There is a risk that cracks or fractures may occur due to excessive stresses at the welded site due to the damage of the pile due to the lateral force at the pile type.

Secondly, it is inconvenient to work by moving the welding equipments in every place, and it is inconvenient to work such as exposure of workers to the danger of electric shock, , There is a problem that a lot of operation time is required.

Third, there are many kinds of piles which are divided into a plurality of piles, and various types of piles such as a lower pile, a middle pile, and an upper pile are to be stacked in a narrow yard.

As a conventional technique for solving the above-mentioned problems, there has been proposed a fastener for connecting a concrete file.

As shown in FIGS. 4 and 5, a cylindrical body portion 110 having a through-hole 111 and a flange-like body portion 110 are formed to connect the upper concrete pile 30 and the lower concrete pile 20, And upper and lower flange portions 120 and 130 having a plurality of bolt coupling holes 121 and 131 and coupled to upper and lower ends of the body portion 110, A plurality of support pieces 112 for supporting the upper and lower flange parts 120 and 130 protrude from the outer periphery of the body part 110 and a lower end part A guide ring 113 protruded downward so as to be inserted into the lower concrete pile 20 when the pile is coupled with the concrete pile 20 and serve as a guide are formed. The inner circumferences of the outer circumferential and upper and lower flange portions 120 and 130 are provided with threads 110a, 120a, 130a are formed so that the body 110 and the upper and lower flange portions 120 and 130 are coupled to each other by screw engagement and the bolt coupling hole 131 of the lower flange portion 130 is engaged with the lower concrete pile 130. [ The bolt 50 is inserted into the bolt coupling hole 22 of the joint cap 21 of the lower concrete pile 20 and the bolt coupling hole 131 when the fastener is coupled to the lower concrete pile 20, And is formed in an elliptical shape having a hole extended in the circumferential direction of the lower flange portion 130 (refer to Patent Document 1).

On the other hand, there are cases where the positions of the bolt coupling holes are made different for each manufacturer of the concrete pile. In this case, when the positions of the bolt coupling holes are different due to the difference in the manufacture of the upper concrete file and the lower concrete file to be connected, the bolt coupling holes of the upper and lower flange portions are formed in the same position, Can not be used. In addition, the above-described file connection fastener is inconvenient because it is necessary to perform the bolt fastening operation in the vertical direction when connecting the concrete file.

Korean Patent No. 0976563

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a concrete pile connecting structure capable of easily connecting upper and lower concrete files even when the positions of the bolt holes are different due to the different makers of the upper concrete file and the lower concrete file. And a method of connecting a concrete pile using the same.

It is another object of the present invention to provide a fastener for connecting a concrete file and a method for connecting a concrete file using the fastener, wherein the upper and lower concrete files are connected more quickly to improve workability.

Another object of the present invention is to provide a fastener for a concrete file connection and a method for connecting a concrete file using the same, which simplify and simplify a file to produce without producing an upper file, a middle file and a lower file, .

In order to accomplish the above object, a concrete file connecting fastener according to the present invention includes: a first fastener 210 fastened to a front end of a lower or upper concrete pile 20, 30; And a second fastener (250) coupled to the first fastener (210) while being fastened to the tip of the lower or upper concrete pile (20,30) and being fitted inside the first fastener (210) The first fastener 210 has bolt fastening holes 222 and 222 corresponding to the bolt fastening holes 22 and 32 formed in the concrete piles 20 and 30 so as to be fastened to the front ends of the lower or upper concrete piles 20 and 30, A cylindrical supporting part 230 having a circular bottom part 220 formed with a bottom part 220 formed thereon and a bolt fastening part 232 fastened to the bottom part 220 for bolt fastening with the second fastening part 250, And a guide part 240 installed upright on the bottom part 220 or the support part 230 for positioning with the second fastener 250, A bolt fastening hole 262 corresponding to the bolt fastening holes 22 and 32 formed in the concrete piles 20 and 30 is formed so as to be fastened to the front ends of the bolts 20 and 30 A bolt fastening hole 272 is formed in the base 260 so as to correspond to the bolt fastening hole 232 of the support part 230 and is formed in a circle having a diameter smaller than that of the support part 230, And a guide part 280 installed upright on the bottom part 260 or the fastening part 270 so as to correspond to the normal fastening part 270 and the guide part 240, The bolt head is formed in a tapered shape so that the head of the bolt fastened with the hole 232 can be received inside the hole, and a screw thread is formed in the bolt fastening hole 272 of the fastening part 270.

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In addition, through holes 224 and 264 may be formed in the center of the bottom portions 220 and 260.

According to the present invention, even when the positions of the bolt holes are different due to the difference in the manufacture of the upper concrete file and the lower concrete file, the first and second fasteners having the bolt- Can be easily connected to each other. Therefore, even if the manufacturers are different from each other, compatibility is possible.

In addition, since the first and second fasteners are bolted to the side of the concrete file, the workability can be improved by connecting the upper and lower concrete files more quickly, thereby improving both workability, economy and convenience.

In addition, when connecting concrete files, it is possible to fasten without separating the upper file, the middle file and the lower file, so that the file can be unified and simplified to provide the convenience of production and construction without producing the upper file, the middle file and the lower file.

1 is a view showing an example of a conventional joint cap for a concrete pile.
FIGS. 2 and 3 are views showing a connection process of a concrete pile using a conventional joint cap.
4 is a view showing a conventional fastener for a concrete file connection;
5 is a view showing an embodiment of using a conventional concrete file connection fastener;
6 is a view showing a fastener for connecting a concrete file according to the present invention.
FIGS. 7 and 8 are views showing the state of use of a fastener for connecting a concrete file according to the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the same parts as those of the prior art will be described with reference to the conventional drawings.

FIG. 6 is a view showing a fastener for connecting a concrete file according to the present invention, and FIGS. 7 and 8 are views showing a fastener for connecting a concrete file according to the present invention.

The file connection fastener and the concrete file connection method using the same according to the present invention can easily connect the upper and lower concrete files even when the positions of the bolt coupling holes are different due to the different makers of the upper concrete file and the lower concrete file But it is also possible to improve the workability by connecting the upper and lower concrete files more quickly.

As shown in the figure, the concrete file connection fastener 200 according to the present invention is a fastener used for connecting the lower concrete pile 20 and the upper concrete pile 30, And a second fastening part 250 formed to be inserted into the first fastening part 210 and coupled to the first fastening part 210.

A first fastener 210 fastened to the front end of the lower or upper concrete pile 20,30 and a second fastener 210 fastened to the front end of the lower or upper concrete pile 20,30, And a second fastener 250 coupled to the first fastener 210 in a state where the second fastener 250 is inserted inside.

Specifically, the first fastener 210 includes a bottom 220, a support 230, and a guide 240.

The bottom part 220 is a circular shape having the same shape as that of the lower or upper concrete piles 20 and 30 so as to be connected to the concrete piles 20 and 30 so as to be fastened to the ends of the lower or upper concrete piles 20 and 30. [ A bolt fastening hole 222 corresponding to the formed bolt fastening holes 22 and 32 is formed.

The support part 230 is cylindrically coupled to one side of the bottom part 220 and formed with a bolt fastening hole 232 for fastening the bolt with the second fastener 250.

The guide part 240 is installed upright on the bottom part 220 or the support part 230 for positioning with the second fastener 250.

The second fastener 250 includes a bottom portion 260, a fastening portion 270, and a guide portion 280.

The bottom portion 260 is a circular shape having the same shape as that of the lower or upper concrete piles 20 and 30 and is formed in a shape of a cone pile 20 or 30 so as to be fastened to the front end of the lower or upper concrete pile 20, A bolt fastening hole 262 corresponding to the formed bolt fastening holes 22 and 32 is formed.

The fastening part 270 is cylindrically fastened to one side of the bottom part 260 and formed with a bolt fastening hole 272 so as to correspond to the bolt fastening hole 232 of the support part 230, 230 have a relatively smaller diameter than the support portion 230 so as to be fitted into the inside of the support portion 230.

The guide portion 280 is installed upright on the bottom portion 260 or the coupling portion 270 to correspond to the guide portion 240. The guide portion 240 of the first fastener 210 is positioned by the guide portion 280 of the second fastener 250 so that the second fastener 250 inserted into the first fastener 210 The bolt fastening holes 232 of the support portion 230 and the bolt fastening holes 272 of the fastening holes 270 are aligned with each other.

As described above, the concrete file connection fastener 200 according to the present invention includes the first fastener 210 and the second fastener 250, which are separated from each other, The first and second fasteners 210 and 250 may be provided with bolt fastening holes 222 and 262 corresponding to the positions of the holes. Thus, the upper and lower concrete files may be manufactured differently, The upper and lower concrete files can be conveniently connected by applying the first and second fasteners 210 and 250 corresponding thereto.

The bolt fastening holes 232 of the support portions 230 are formed in the support portions 230 so that the heads of the bolts fastened to the support portions 230 in the circumferential direction 230, and a screw thread may be formed in the bolt fastening hole 272 of the fastening part 270. The bolt fastening hole 272 of the fastening part 270 may be threaded.

This makes it possible to fasten the bolts to the bolt fastening hole 232 of the support part 230 and the bolt fastening holes 272 of the fastening part 270 in a more convenient manner, The head of the bolt does not protrude outward of the support part 230, and there is an advantage in that the bolt does not interfere with the external object during the pile construction.

In the center of the bottoms 220 and 260, through holes 224 and 264 having a predetermined size may be formed in the same manner as the concrete piles 20 and 30 in consideration of cost reduction and the like.

Hereinafter, the operation of the concrete file connecting fastener 200 according to the present invention will be described with reference to FIGS.

7, the first fastener 210 is brought into contact with the joint cap 21 of the lower concrete pile 20, and the bolt connection (not shown) formed on the bottom part 220 of the first fastener 210, The first bolt 50 is inserted into the bolt coupling hole 22 of the hole 222 and the joint cap 21 to fasten the first coupling hole 210 to the lower concrete pile 20.

The second fastener 250 is brought into contact with the joint cap 31 of the upper concrete pile 30 and the bolt coupling hole 262 and the joint cap 262 formed in the bottom portion 260 of the second fastener 250 A predetermined bolt 50 is inserted in the bolt coupling hole 32 of the upper concrete pile 30 to thereby fasten the second fastening hole 250 to the upper concrete pile 30.

8, the guide portion 240 of the first fastener 210 and the guide portion 280 of the second fastener 250 are aligned with the first fastener 210, A bolt fastening hole 232 formed in the support portion 230 of the first fastening hole 210 and a bolt fastening hole 270 formed in the fastening portion 270 of the second fastening hole 250 are formed in the first fastening hole 210, The first fastener 210 and the second fastener 250 are coupled by tightening a predetermined bolt 60 in the hole 272. [

As a result, the lower concrete pile 20 and the upper concrete pile 30 are connected by the first and second fasteners 210 and 250.

For reference, contrary to the above, the second fastener 250 is coupled to the lower concrete pile 20, the first fastener 210 is coupled to the upper concrete pile 30, The lower concrete pile 210 and the second concrete pile 250 may be bolted to each other to connect the lower concrete pile 20 and the upper concrete pile 30. [

As described above, according to the present invention, even though the positions of the bolt coupling holes are different due to the difference in the manufacture of the upper concrete file and the lower concrete file, the first and second fasteners having the bolt- , You can conveniently connect the lower concrete files.

In addition, since the first and second fasteners are bolted to the side of the concrete file, the workability can be improved by connecting the upper and lower concrete files more quickly, thereby improving both workability, economy and convenience.

In addition, although the file is divided into an upper file, a middle file, and a lower file in the case of a file connection by the existing welding, it is manufactured and manufactured. However, when the concrete file is connected by using the fastener of the present invention, It is possible to simplify and simplify the file so as to produce the upper file, the middle file, and the lower file without distinction, thereby providing the convenience of production and construction.

While the present invention has been shown and described with reference to certain exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And various modifications, alterations, and changes may be made without departing from the scope of the present invention.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

200: fastener 210: first fastener
220: bottom part 230: support part
240: guide portion 250: second fastener
260: bottom part 270: fastening part
280: guide portion

Claims (5)

A fastener (200) used for connecting a lower concrete pile (20) and an upper concrete pile (30)
A first fastener (210) fastened to the front end of the lower or upper concrete piles (20,30);
And a second fastener (250) coupled to the first fastener (210) while being fastened to the tip of the lower or upper concrete pile (20,30) and being fitted inside the first fastener (210)
The first fastener 210 has bolt fastening holes 222 and 222 corresponding to the bolt fastening holes 22 and 32 formed in the concrete piles 20 and 30 so as to be fastened to the front ends of the lower or upper concrete piles 20 and 30, A cylindrical supporting part 230 having a circular bottom part 220 formed with a bottom part 220 formed thereon and a bolt fastening part 232 fastened to the bottom part 220 for bolt fastening with the second fastening part 250, And a guide part 240 installed upright on the bottom part 220 or the support part 230 for positioning with the second fastener 250,
The second fastener 250 has bolt fastening holes 262 corresponding to the bolt fastening holes 22 and 32 formed in the concrete piles 20 and 30 so as to be fastened to the front ends of the lower or upper concrete piles 20 and 30 A bolt fastening hole 272 is formed to correspond to the bolt fastening hole 232 of the support portion 230 and is smaller than the support portion 230 And a guide part 280 installed upright on the bottom part 260 or the fastening part 270 so as to correspond to the guide part 240,
The bolt fastening hole 232 of the support part 230 is formed in a tapered shape so that the bolt head to be fastened while being elongated can be received in the hole,
Wherein a screw thread is formed in the bolt fastening hole (272) of the fastening part (270). delete delete The method according to claim 1,
And a through hole (224, 264) is formed at the center of the bottom (220, 260). A concrete pile connecting method according to claim 1, wherein the concrete first and second fasteners (210, 250) are combined to connect the lower concrete pile (20) and the upper concrete pile (30).
KR1020160016451A 2016-02-12 2016-02-12 Fixture for connecting concrete piles and method for connecting concrete piles using the same KR101701123B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190019228A (en) * 2017-08-16 2019-02-27 유영산업(주) Connecting unit for concrete pile
KR20200001239A (en) * 2018-06-27 2020-01-06 (주)성심씨앤엠 Concrete Pile Joining Device With Solid Joining Function
WO2021045261A1 (en) * 2019-09-03 2021-03-11 백기원 Pile connecting device and pile connecting method using same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002363972A (en) * 2001-06-08 2002-12-18 Kubota Corp Steel pipe, steel pipe connection structure, and steel pipe connection method
KR100976563B1 (en) 2007-11-13 2010-08-18 삼부건설공업 주식회사 Fixture for connecting concrete piles
KR101451164B1 (en) * 2014-03-14 2014-10-15 문종화 The clamping device for Concrete piles extending
KR20150110336A (en) * 2014-03-21 2015-10-02 주식회사 파일웍스 Concrete pile connection apparatus and method
KR101562984B1 (en) * 2015-06-19 2015-10-23 주식회사 태산플랜트 Upper and lower separation type quick connector for material to each other in pile and pile construction method using that

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002363972A (en) * 2001-06-08 2002-12-18 Kubota Corp Steel pipe, steel pipe connection structure, and steel pipe connection method
KR100976563B1 (en) 2007-11-13 2010-08-18 삼부건설공업 주식회사 Fixture for connecting concrete piles
KR101451164B1 (en) * 2014-03-14 2014-10-15 문종화 The clamping device for Concrete piles extending
KR20150110336A (en) * 2014-03-21 2015-10-02 주식회사 파일웍스 Concrete pile connection apparatus and method
KR101562984B1 (en) * 2015-06-19 2015-10-23 주식회사 태산플랜트 Upper and lower separation type quick connector for material to each other in pile and pile construction method using that

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190019228A (en) * 2017-08-16 2019-02-27 유영산업(주) Connecting unit for concrete pile
KR102138666B1 (en) * 2017-08-16 2020-07-29 유영산업(주) Connecting unit for concrete pile
KR20200001239A (en) * 2018-06-27 2020-01-06 (주)성심씨앤엠 Concrete Pile Joining Device With Solid Joining Function
KR102104172B1 (en) * 2018-06-27 2020-04-23 (주)성심씨앤엠 Concrete Pile Joining Device With Solid Joining Function
WO2021045261A1 (en) * 2019-09-03 2021-03-11 백기원 Pile connecting device and pile connecting method using same

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