KR20210082739A - Pile Coupling Device And Connecting Pile Method Using Thereof - Google Patents

Abstract

The present invention relates to a pile connection device, capable of effectively resisting pulling force and a pile connection method using the same. In accordance with the pile connection device, a pair of connectors are spaced apart from each other by a predetermined interval to allow a pulling-force resistance connection assembly to be oriented to the outside, and an anchor rotation support unit is formed in a central portion in a longitudinal direction.

Description

File Coupling Device And Connecting Pile Method Using Thereof

The present invention relates to a pile connection device and a file connection method using the same, and more particularly, to embed the connection body in the head of the connection part of the pile in advance and connect the pile and the file with a pile connection anchor body without welding when connecting the pile. It relates to a file connection device and a file connection method using the same.

In the conventional connection of concrete piles, the two concrete piles were connected to each other by welding the edge of the steel plate in contact. According to the connection method by welding, it is inconvenient in construction because the periphery of the end of the concrete must be welded one by one, and since it takes a lot of time by welding, the time is long, and it is disadvantageous in terms of cost. In addition, in the most important structural strength problem in a building, the connection of concrete piles by welding causes the welding part to be oxidized first, so there was a weak problem in terms of structural strength.

As the technology that is the background of the present invention, there is Korean Patent Registration No. 1018006 "File Connection Method" (Patent Document 1).

In the background art, a plurality of through-holes are respectively formed at equal intervals in the circumferential direction at the joint of the upper and lower piles, and the upper half of the socket of the inner support means is inserted into the lower inner circumferential surface of the upper pile, and the upper pile The upper half of the primary shear reinforcement plates of the outer support means are fastened to the outer peripheral surface of the joint using a high-tensile bolt of the fastening means to maintain a certain distance in the circumferential direction, and the lower half of the socket of the inner support means and the shear reinforcement of the outer support means The upper and lower piles are extended in the same direction by inserting the upper end of the lower pile into the annular fitting space formed between the lower half of the plate, and the secondary shear reinforcing plates are installed between the first shear reinforcing plates of the outer support means, respectively. A plurality of high-tensile bolts are inserted to surround the outer peripheral surface of the upper and lower piles with primary and secondary shear reinforcement plates by inserting them in turn, and then penetrate the upper and lower piles from the shear reinforcement plate to connect to the socket. Including the steps of fastening and fixing, the upper and lower piles are connected in a prefabricated manner at the work site, and the step of fastening the socket of the inner support means and the primary shear reinforcement plate of the outer support means to the upper pile is formed in the socket. The first female threaded holes on the upper half side of the first female threaded holes in the second row are aligned with the through holes of the upper pile, and a plurality of primary shear reinforcing plates are arranged at equal intervals in the circumferential direction on the outer peripheral surface of the joint of the upper pile, and each After aligning the second female threaded holes on the upper half of the second row of second female threaded holes formed in the first shear reinforcement plate with the through holes of the upper pile, the high-tensile bolt penetrates the second female threaded holes on the upper half side formed in the first shear reinforcement plate. are each screwed, and pass through the through hole of the upper pile to pass through the first female screw hole on the upper half side formed in the socket of the inner support means.

However, the background art has problems in that the configuration is complicated and the fastening method is difficult.

Republic of Korea Patent Registration No. 1018006 "File Connection Method"

The present invention is to solve the above problems, and it is possible to manufacture a pile by embedding a connector into the head of the connecting part of the pile, and to connect the file and the file with a pile connection anchor body, so that it is possible to easily combine without welding work, The connecting body embedded inside is made of a key box and a pull-out resistance key to effectively resist the pull-out force. Increase the acupressure area by connecting the acupressure reinforcing pin to the pull-out resisting key and connecting the acupressure reinforcing pin to the pile connection anchor. An object of the present invention is to provide a pile connection device and a pile connection method using the same to suppress the destruction of concrete at the end of the pile.

The present invention includes a head cap in which a plurality of coupling holes are formed so as to be perforated to form a screw thread on the inner circumferential surface in a plate shape; It has a rectangular box shape with an open bottom and an empty inside, a key box with a through hole formed on the upper surface, and a lower plate coupled to the opened lower surface, and a coupling hole having a thread formed on the inner circumferential surface in the shape of a rectangular plate having a certain thickness. A pull-out resistance key that is formed through and is configured inside the key box, a nut hole is formed vertically to a certain depth in the central part of the upper part, and threads are formed on the outer peripheral surface from the upper part to the lower part to a certain height and from the lower part to a certain height, respectively, and the lower part is the key box A pin cover formed to cover the outer circumferential surface of the acupressure reinforced pin between the upper surface of the key box and the lower part of the upper thread of the acupressure reinforced pin through the through hole of the acupressure reinforced pin that is bolted to the coupling hole of the pull-out resistance key. Consisting of, a pull-out resistance connection assembly in which the threaded upper portion of the acupressure reinforcing pin is formed on one side of the head cap is fastened to the coupling hole of the head cap; A pair of connecting bodies are configured to be spaced apart by a distance, and an anchor rotation support is formed in the central portion in the longitudinal direction, and both ends of the pile connection anchor body in which a thread is formed on the outer peripheral surface except for the anchor rotation support portion are formed with acupressure reinforcing pins of the connectors on both sides, respectively. An object of the present invention is to provide a pile connection device, characterized in that it is coupled to the nut ball of the

In addition, the lower plate is formed larger than the size of the cross section of the key box to provide a pile connection device, characterized in that to form a large acupressure area.

In addition, an object of the present invention is to provide a pile connection device, characterized in that a loosening groove is formed on the outside of the nut ball.

In addition, an object of the present invention is to provide a pile connection device, characterized in that a spiral groove is formed on the outer peripheral surface of the acupressure reinforcing pin that faces the pin cover.

In addition, the pin cover is to provide a pile connection device, characterized in that the unevenness is formed on the outer peripheral surface.

In addition, (a) manufacturing a pile so that the pull-out resistance connection assembly is embedded in the head connecting the connector; (b) coupling the pile connection anchor body to the head cap of the upper end connection body of the lower pile; (c) positioning the upper pile on the upper part of the lower pile, and fastening the pile connection anchor body coupled to the lower pile to the anchor body of the lower part of the upper pile; (d) filling the gap portion between the upper pile and the lower pile with mortar to finish; to provide a pile connection method using a pile connection device, characterized in that it comprises a.

The pile connection device of the present invention and the pile connection method using the same can make a pile by embedding the connection body in the head of the connection part of the pile, and connect the pile and the file with the pile connection anchor body, so that easy coupling is possible without welding work, The connecting body embedded inside is made of a key box and a pull-out resistance key to effectively resist the pull-out force. Increase the acupressure area by connecting the acupressure reinforcing pin to the pull-out resisting key and connecting the acupressure reinforcing pin to the pile connection anchor. There is a very useful effect of suppressing the destruction of concrete at the end of the pile.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings It should not be construed as being limited.
The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings It should not be construed as being limited.
1 is a perspective view of a combined state of the pile connection device of the present invention.
FIG. 2 is a cross-sectional view of FIG. 1 .
Figure 3 is a perspective view and a cross-sectional view of the head cap of the present invention.
4A is a perspective view of a pull-out resistance connection assembly of the present invention;
4B is an exploded perspective view of FIG. 4A.
4C is a cross-sectional view of FIG. 4A.
4D and 4E are cross-sectional views illustrating another embodiment of FIG. 4C.
5 is a perspective view and a cross-sectional view of a pile connection anchor body of the present invention.
6 is a view sequentially illustrating a file connection method using the file connection device of the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment.

Figure 1 is a perspective view of a coupled state of the pile connection device of the present invention, Figure 2 is a cross-sectional view of Figure 1 above.

1 and 2, the pile connection device of the present invention includes a pair of connectors 10 made of a head cap 200 and a pull-out resistance assembly 100 coupled to one side of the head cap 200. It is positioned to face and consists of a pile connection anchor body 20 to fasten a pair of connecting bodies 10 and 10 .

Figure 3 is a perspective view and a cross-sectional view of the head cap of the present invention.

As shown in FIG. 3 , the head cap 200 is made of a plate shape of steel that is the same as the size and shape of the cross section of the pile, and a plurality of coupling holes 210 are perforated in the head cap 200 .

The coupling hole 210 is formed at a required location by the design load, and a thread 211 is formed on the inner circumferential surface of the coupling hole 210, so that it can be easily coupled with the pull-out resistance connection assembly 100 to be described later. let it be

The pull-out resistance assembly 100 is coupled to one side of the coupling hole 210 of the head cap 200 , respectively.

4A is a perspective view of the drawing force resistance connection assembly of the present invention, FIG. 4B is an exploded perspective view of FIG. 4A, and FIG. 4C is a cross-sectional view of FIG. 4A.

The pull-out resistance assembly 100 includes a key box 110 , a pull-out resistance key 120 configured inside the key box 110 , and acupressure reinforcing pins 130 coupled to the pull-out resistance key 120 , and acupressure It consists of a pin cover 160 configured to surround the outer circumferential surface of the reinforcing pin 130 so as to be embedded in concrete to resist the pulling force.

The key box 110 has a through hole 111 formed on the upper surface in the shape of a rectangular box with an empty interior. At this time, to configure the pull-out resistance key 120 inside, open the lower part separately, insert the pull-out resistance key 120 to which the acupressure strengthening pin 130 is coupled, and then weld the lower part to a separate lower plate 112, etc. to be closed in a variety of ways.

In particular, as in 4e, the lower plate 112 is formed to be larger than the size of the cross-section of the key box 120, so that the acupressure area is enlarged when buried in concrete to increase the pull-out resistance, and also to prevent the destruction of the end concrete. It can also be suppressed.

The pull-out resistance assembly 100 of the present invention may be used in both permanent piles and temporary piles.

The height of the cross-section of the inside of the key box 110 and the height of the cross-section of the pull-out resistance key 120 may be configured to be the same, and in particular, the height of the cross-section inside the key box 110 for easy disassembly in a temporary file is determined by the pull-out force. To be formed larger than the height of the cross section of the resistance key 120, when the acupressure reinforcing pin 130 assembled to the pull-out resistance key 120 during replacement is released by rotation, the pull-out resistance key 120 is Falling from the inside of the key box 110 to the bottom, by rotating the unlocking device in the opposite direction later so that the acupressure reinforcing pin 130 is coupled to the pull-out resistance key 120, it can be reused.

The key box 110 has a hexahedral box shape and a flat cross-section is formed in a cut-off type, and the pull-out resistance key 120 is a square plate material having a certain thickness and rotates when inserted into the square box shape key box 110. It is made in the shape of a square plate of a flat size of the same or similar size as the key box 110 so as not to be prevented.

That is, the pull-out resistance key 120 is inserted into the key box 110 to prevent the pull-out resistance key 120 from rotating when the acupressure reinforcing pin 130 is coupled to the pull-out resistance key 120 to prevent the acupressure reinforcing pin ( 130) to facilitate the combination and disassembly of the

Such a pull-out resistance key 120 has a coupling hole 121 having a screw thread formed in the central portion to penetrate vertically, so that the lower end of the acupressure reinforcing pin 130 can be screwed together.

As shown, the acupressure reinforcing pin 130 has a cylindrical shape and a nut hole 131 is formed in the central portion of the upper end to a certain depth vertically, and a screw thread 133 is formed on the outer circumferential surface from the lower end to a certain height. 133) is formed is screwed to the coupling hole 121 of the pull-out resistance key 120 so that the height in the vertical direction can be adjusted.

In addition, the acupressure reinforcing pin 130 has a screw thread 139 formed on the outer circumferential surface from the upper end to the lower portion to a certain height, so that the acupressure reinforcing pin 130 is easily attached to the head cap 200 without a separate welding operation. 210) so that it can be screwed.

The acupressure reinforcing pin 130 is bolted to the coupling hole 121 of the pull-out resistance key 120 through the through hole 111 of the key box 110, and the upper portion is the through hole of the key box 110. It is formed to protrude upward through (111).

The nut hole 131 is where the pile connection anchor body 20 to be described later is coupled, and is formed at a predetermined depth in the central portion of the upper end of the acupressure reinforcing pin 130 so that the pile connection anchor body 20 can be coupled. do.

In addition, at the upper end of the acupressure reinforcing pin 130, a loosening groove 132 composed of grooves of various shapes is configured on the outside of the nut hole 131 to dismantle the acupressure reinforcing pin 130 or the acupressure reinforcing pin 130. When adjusting the height of the release groove 132, a separate release device is inserted so that the acupressure reinforcing pin 130 can be rotated clockwise or counterclockwise.

The pin cover 160 is made of a material such as polyethylene, and is formed to surround the outer circumferential surface of the acupressure reinforcing pin 130 between the upper surface of the key box 110 and the lower surface of the fixing plate 140, and is embedded in concrete. By separating the concrete from the outer peripheral surface of the acupressure reinforcing pin 130 of the pull-out resistance connection assembly 100 that becomes the acupressure reinforcing pin 130, disassembly and error control of the acupressure reinforcing pin 130 are facilitated.

4D and 4E are cross-sectional views illustrating another embodiment of FIG. 4C.

The pin cover 160 has irregularities formed on the outer circumferential surface, so that the slip phenomenon does not occur when buried in concrete. In particular, as shown in FIG. 4d, the acupressure reinforcing pin 130 that interfaces with the pin cover 160 as shown in FIG. 4D. Assemble the pull-out resistance assembly 100 so that a spiral groove is formed on the outer circumferential surface of the The acupressure reinforcing pin 130 is in close contact with the inner circumferential surface to form a spiral, so that the pin cover 160 itself can be configured to perform the role of a nut, so that the acupressure reinforcing pin 130 can be easily removed when dismantling because replacement is required. there will be

The pull-out resistance assembly 100 configured as described above includes the head cap 200 and the pull-out resistance assembly 100 by screwing the upper end of the acupressure reinforcing pin 130 to the coupling hole 210 of the head cap 200 . A connection body 10 is formed.

As such, when the pull-out resistance assembly 100 is coupled to the head cap 200 , a separate welding operation is not required, and the pull-out resistance assembly 100 can be easily combined by rotating the assembly 100 .

5 is a perspective view and a cross-sectional view of a pile connection anchor body of the present invention.

The pile connection device of the present invention consists of a pair of connection bodies (10) and a pile connection anchor body (20) for fastening a pair of connection bodies (10).

Since the connecting body 10 is configured so that the pull-out resistance assembly is embedded in the head of the connecting part of the pile, the pile connecting device of the present invention is a pair of connecting bodies so that the pull-out resistance connecting assembly 100 is spaced apart by a certain distance to the outside. (10) is positioned and using the pile connection anchor body (20) to connect the connection body (10) on both sides.

The pile connection anchor body 20 is, as shown in FIG. 5 , the anchor rotation support 21 is formed in the longitudinal central portion, and the screw thread 22 is formed on the outer peripheral surface except for the anchor rotation support 21 .

The anchor rotation support 21 is configured to rotate the pile connection anchor body 20 by inserting a separate device, and to be made in a cross section larger than the size of the cross section formed of the screw thread 22 .

Such a pile connection anchor body 20 is coupled so that both ends are fastened to the nut holes 131 of the acupressure reinforcing pins 130 of the connection bodies 10 on both sides, respectively.

6 is a view sequentially illustrating a file connection method using the file connection device of the present invention.

The file connection method using the file connection device of the present invention will be described in detail in order as follows.

First, the files 50 and 60 are manufactured so that the connector 10 is configured (a).

To manufacture the piles 50 and 60 so that the pull-out resistance connection assembly 100 is embedded in the head of the connecting side of the connecting body 10 of the piles 50 and 60 and the other side of the head cap 200 is exposed. do.

Then, as in FIGS. 6a and 6b, the pile connection anchor body 20 is coupled to the head cap 200 of the upper end connector 10 of the lower pile 50 (b).

The pile 50 is constructed in the lower part and the pile connection anchor body 20 is coupled to the connection body 10 of the upper part of the lower pile 50, and the pile connection anchor body 20 is connected to the bottom pile 50 connection body ( 10) is rotated to the nut hole 131 of the acupressure reinforcing pin 130 to be fastened.

Thereafter, as in FIG. 6c , the upper pile 60 is positioned on the upper part of the lower pile 50 and the lower pile 50 and the upper pile 60 are connected with the pile connection anchor body 20 (c) .

Since the pile connection anchor body 20 is coupled to the upper part of the lower pile 50 , the upper pile 60 on the upper part of the lower pile 50 , the pile connection anchor body 20 and the connection body 10 , acupressure After positioning the nut hole 131 of the reinforcing pin 130 to match, the upper pile 60 and the lower pile 50 are separated by rotating the pile connection anchor body 20 while moving the upper pile 60 downward. to connect

At this time, a gap portion (d) for fastening the pile connection anchor body 20 is formed between the upper pile 60 and the lower pile 50, and the coupling error of the pile can be corrected with this gap portion (d). have.

Finally, as in FIG. 6d , the gap portion (d) of the connection part of the upper pile 60 and the lower pile 50 is filled with mortar 70 to finish (d).

The pile connection device and the pile connection method using the same of the present invention as described above can produce a pile by embedding the connection body in the head of the connection part of the pile, and connect the file and the file with the pile connection anchor body, so that easy coupling is possible without welding , The connecting body embedded in the pile is made up of a key box and a pull-out resistance key to effectively resist the pull-out force, and the acupressure reinforced pin is coupled to the pull-out resistance key and the acupressure reinforced pin is connected to the pile connection anchor with the acupressure reinforced pin. It has a very useful effect of increasing the area to suppress the destruction of the concrete end of the pile.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

10: connector
100: pull-out resistance assembly
110: key box
111: through hole
120: pull-out resistance key
121: coupling hole
130: acupressure reinforcing pin
131: nut ball
132: release groove
133: thread
160: pin cover
200: tofu cap
210: coupling hole
211: thread
50, 60 : file
70: mortar

Claims (6)

a head cap 200 in which a plurality of coupling holes 210 are formed so as to be perforated to form a screw thread 211 on the inner circumferential surface in a plate shape;
It has a rectangular box shape with an open bottom and an empty inside, a key box 110 having a through hole 111 formed on the upper surface, and a lower plate 112 coupled to the opened lower surface, and a rectangular plate material having a certain thickness. A coupling hole 121 having a screw thread formed on the inner circumferential surface is formed to penetrate vertically, and a pull-out resistance key 120 configured in the key box 110, and a nut hole 131 are formed vertically to a certain depth in the center of the upper end. Threads 133 and 139 are formed on the outer peripheral surface from the upper end to a certain height from the upper end to the lower end, respectively, so that the lower end penetrates the through hole 111 of the key box 110 and the pull-out resistance key 120 is coupled. The outer circumferential surface of the acupressure reinforcement pin 130 between the ball 121 bolted to the acupressure reinforcement pin 130 and the upper surface of the key box 110 and the lower part of the upper thread 139 of the acupressure reinforcement pin 130 It is made to include a pin cover 160 that is formed to wrap, and the upper part of which the thread 139 of the acupressure reinforcing pin 130 is formed on one side of the head cap 200 is in the coupling hole 210 of the head cap 200. A connection body 10 consisting of; a pull-out resistance connection assembly 100 that is fastened and coupled;
A pair of connecting bodies 10 are configured such that the pull-out resistance connection assembly 100 is spaced apart by a predetermined distance to face outward,
Anchor rotation support 21 is formed in the central portion of the longitudinal direction, and on the outer peripheral surface except for the anchor rotation support 21, a pile connection anchor body 20 having a screw thread 22 is formed at both ends of the connection body 10 on both sides. A pile connection device, characterized in that it is coupled to the nut hole 131 of the acupressure reinforcing pin 130 . The method according to claim 1,
The lower plate 112 is formed larger than the size of the cross-section of the key box 120 to form a large acupressure area. The method according to claim 1,
File connection device, characterized in that the loosening groove 132 is formed on the outside of the nut hole (131). The method according to claim 1,
A pile connection device, characterized in that a spiral groove is formed on the outer peripheral surface of the acupressure reinforcing pin 130 that faces the pin cover 160 . The method according to claim 1,
The pin cover 160 is a pile connection device, characterized in that the unevenness is formed on the outer peripheral surface. In the method of connecting a file using the file connecting device of any one of claims 1 to 5,
(a) manufacturing the piles 50 and 60 so that the connecting body 10 is connected to the connecting body 10 and the pull-out resistance connecting assembly 100 is embedded in the head;
(b) coupling the pile connection anchor body 20 to the head cap 200 of the upper end connection body 10 of the lower pile 50;
(c) positioning the upper pile 60 on the upper part of the lower pile 50, and attaching the pile connection anchor body 20 coupled to the lower pile 50 to the anchor body 10 of the lower part of the upper pile 60 fastening;
(d) filling the gap portion (d) of the connection part of the upper pile (60) and the lower pile (50) with mortar (70);

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