KR20090052527A - The reinforcement structure of the head of concrete pile - Google Patents

Abstract

The bottom plate supported by a number of bar reinforcement is installed inside the concrete pile to which the head is arranged to facilitate fusion of the rod reinforcement and the concrete to be poured during expansion-based concrete placement. A head reinforcement structure of a concrete pile is disclosed which can compensate for cracks and withstand heavy loads. Head reinforcement structure according to the present invention is disposed horizontally inside the concrete pile and a bottom plate formed with a plurality of through-holes adjacent to the edge; A support ring placed on the upper surface of the concrete pile and formed with a plurality of coupling holes along an inner diameter, a head having an annular ring shape, a screw extending through the coupling hole and a screw portion passing through the coupling hole A support member having a plurality of hinge bolts having fastening nuts to be fastened; And a first vertical portion extending vertically upwardly on the upper surface of the concrete pile while being fitted to the head, bent vertically at the bottom of the first vertical portion to be spread over the upper surface of the concrete pile and on the inner side of the concrete pile. It consists of a plurality of bar reinforcement having a second vertical portion which is bent vertically at the extension end of the horizontal portion, extending vertically along the inside of the concrete pile and coupled to the through hole of the bottom plate extending vertically.

Description

Head reinforcement structure of concrete pile {THE REINFORCEMENT STRUCTURE OF THE HEAD OF CONCRETE PILE}

The present invention relates to a head reinforcement structure of a concrete pile for securing a concrete pile cracked inside the head when cleaning the head, more specifically, the bottom plate is supported by a plurality of bar reinforcement in the interior of the pile pile To facilitate fusion between rod reinforcement and concrete being poured when installing foundation-based concrete, the head reinforcement structure of the concrete pile can compensate for the cracks generated inside the concrete pile when arranging the head and can withstand large loads. It is about.

Generally, in order to secure safety and prevent ground subsidence during the construction of structures or structures, such as construction or civil works, piles are embedded or embedded in underground rock to be grounded, and then the structures or structures must be constructed thereon. do.

Recently, with the introduction of construction and seismic design methods in soft ground and coastal areas, piles requiring deep penetration and large bearing capacity are required to secure the safety of structures. Recently, a PHC file (PRETENTIONED SPUN HIGH STRENGTH CONCRETE PILES) has been used to meet these demands.

The above-mentioned PHC pile is a high-strength concrete pile, a cylindrical ready-made concrete product that can be used as a prefabricated product in a factory or another place, or can be used directly in the field. These PHC piles are mainly used for the reclamation of high-rise apartments and large buildings to connect the loads received from the foundation to the ground.

PHC files are constructed through the most common and commonly used direct drilling methods. In order to construct a PHC pile by such a direct drilling method, first flatten the ground of the trench using an excavator or the like, select a location to pile the pile, attach the pile to the crane, and then pile the pile using normal driving. Work inserts the file into the support layer. When the pile is inserted to the support layer, the head cleaning work is performed to cut the top part of the pile exposed to the ground. When the head cleaning is completed, the head can be safely and effectively supported after loading the foundation concrete. Reinforcement structures are installed. That is, after the head to clean up work is completed, the head reinforcement structure is installed, and then the foundation concrete is poured, and the structure is constructed in the poured concrete.

However, the conventional concrete piles are cut to the iron core of the concrete piles using a cutter to clean the head, and the concrete piles are severely damaged by crushing the concrete piles using the fork-crane tongs. There was a problem that takes a lot of work time because we have to put together.

In addition, the situation that a lot of structures to support the reinforcement inserted into the inner surface is being developed, the structure is complicated, there was a problem that construction is difficult in a short time.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to install the base plate supported by a plurality of bar reinforcement in the interior of the concrete pile arranged the head bar when placing the expansion base concrete By facilitating the fusion between the reinforcing steel and the concrete to be poured, it is possible to compensate for the cracks generated inside the head clearance concrete pile, and to provide a head reinforcement structure of the concrete pile that can withstand a large load.

In order to achieve the object of the present invention as described above, the present invention,

In the head reinforcement structure fixedly inserted into the ground and exposed to the ground provided on the top of the conventional concrete pile, the head is arranged,

A bottom plate disposed horizontally inside the concrete pile and having a plurality of through holes formed at a position adjacent to the edge thereof;

A support ring placed on the upper surface of the concrete pile and formed with a plurality of coupling holes along an inner diameter, a head having an annular ring shape, a screw extending through the coupling hole and a screw portion passing through the coupling hole A support member having a plurality of hinge bolts having fastening nuts to be fastened; And

A first vertical portion fitted to the head and extending vertically upwards on the upper surface of the concrete pile, bent vertically at the bottom of the first vertical portion to be spread over the upper surface of the concrete pile and on the inner side of the concrete pile Head reinforcement of the concrete pile consisting of a plurality of bar reinforcement having a horizontal portion extending in the vertical portion, the second vertical portion is bent vertically at the extension end of the horizontal portion and extending vertically along the inside of the concrete pile and coupled to the through hole of the bottom plate Provide the structure.

As described above, the head reinforcement structure according to the present invention has a bottom plate disposed in the concrete pile, a plurality of bar reinforcement for supporting the bottom plate and a support member for supporting the bar reinforcement, when expanding the base concrete rod By facilitating the fusion between the reinforcing bar and the inner surface of the concrete pile, it is possible to secure the cracks generated inside the concrete pile when arranging the head has the advantage that can withstand large loads.

In addition, the structure of the bottom plate, rod reinforcement and the support member is simple, there is another advantage that can be shortened construction time to shorten the construction period.

Hereinafter, with reference to the accompanying drawings will be described for the head reinforcement structure of the concrete pile according to an embodiment of the present invention.

1 is a perspective view illustrating a state in which the head reinforcement structure of the concrete pile according to the present invention is mounted on the concrete pile, FIG. 2 is an exploded perspective view illustrating an exploded head reinforcement structure shown in FIG. 1, and FIG. 3 is FIG. 1. Is a cross-sectional view taken along the line AA.

1 to 3, the head reinforcement structure 100 of the concrete pile according to the present invention is fixedly inserted into the ground and exposed to the ground is provided on top of the conventional concrete pile (C) in which the head is arranged. As anyone can see, the interior of the concrete pile (C) has a hollow shape.

The reinforcing structure 100 provided on the upper portion of the concrete pile C includes a bottom plate 110, a support member 120, and a plurality of rod reinforcing bars 140.

First, the bottom plate 110 has a disc shape and is disposed horizontally inside the concrete pile (C). At a position adjacent to the edge of the bottom plate 110, a plurality of through-holes 112 are formed at equal intervals along the arc of the edge. In addition, a plurality of incision lines 114 are formed in the bottom plate 112 so that the inside can be easily inserted into the irregular concrete pile (C), and the incision line 114 is formed at the edge of the bottom plate 110. It is formed extending by a predetermined length toward the center of the 110.

Preferably, the incision line 114 is cut only from the edge of the bottom plate 110 to the arc of the head which connects the centers of the plurality of through holes 112 to each other.

The support member 120 includes a support ring 122 and a plurality of hinge bolts 126 coupled to the support ring 122.

The support ring 122 has an annular shape and is placed on the upper surface of the concrete pile C in which the head is arranged. The support ring 122 has a plurality of coupling holes 124 are formed at equal intervals along the inner diameter of the support ring 122. Preferably, the coupling holes 124 are drilled in the same number as the through holes 112.

The hinge bolt 126 has a general eye bolt shape. Therefore, the hinge bolt 126 is composed of a head portion 128 having an annular ring shape, and a screw portion 130 extending from the head portion 128, and a male screw 132 is formed on the outer circumferential surface of the screw portion 130. The threaded portion 130 of the hinge bolt 126 thus formed penetrates the coupling hole 124 from the inner circumferential surface of the support ring 122, and the female screw 136 is formed on the inner circumferential surface of the screw 130 passing through the coupling hole 124. The fastening nut 134 is formed is fastened. That is, the hinge bolt 126 is fixed to the support ring 122 by a fastening nut 134 fastened on the outer circumferential surface of the support ring 122.

On the other hand, the rod reinforcing bar 140 is provided in the same number as the coupling hole (124). The bar reinforcement 140 is composed of a first vertical portion 142, a horizontal portion 144 and a second vertical portion 146 from the top to the lower side.

The first vertical portion 142 extends vertically upwards on the upper surface of the concrete pile C in which the heads are arranged, and the horizontal portion 144 is bent vertically at the lower portion of the first vertical portion 142 to be concrete. It extends over the inner surface of the concrete pile (C) as well as over the upper surface of (C), the second vertical portion 146 is bent vertically at the extension end of the horizontal portion (144) to the concrete pile (C) Extends vertically along the inner side. At this time, the support male screw 150 is formed on the outer circumferential surface of the second vertical portion 146. The second vertical portion 146, on which the support male screw 150 is formed, passes through the through hole 112 and the through hole 112. The support nut 152 is fastened to the support male screw 150 of the second vertical portion 146 penetrating the through. Meanwhile, the head 128 of the hinge bolt 126 is fitted into the first vertical portion 142.

The following briefly describes the coupling state of the head reinforcement structure 100 of the concrete pile formed as described above.

2 and 3, first, the bottom plate 110 is coupled to each bar reinforcing bar 140. At this time, the second vertical portion 146 of each bar reinforcing bar 140 passes through the through-hole 112 at the top of the bottom plate 110, the second vertical portion 146 through the through-hole 112 The support nut 152 is fastened to the supporting screw 150 of the bottom plate 110 to support the lower portion.

When a plurality of bar reinforcement 140 is coupled to the bottom plate 110, the bottom plate 110 until the horizontal portion 144 of each bar reinforcement 140 is covered on the upper surface of the concrete pile (C) ) Is inserted into the inside of the concrete pile (C). At this time, the second vertical portion 146 of each bar reinforcement 140 is inserted into the concrete pile (C) with the bottom plate 110.

As such, when the bottom plate 110 is inserted into the inside of the concrete pile C, the support member 120 is coupled to support the plurality of rod reinforcing bars 140. In order to couple the support member 120 to the rod reinforcing rods 140, the head 128 of the hinge bolt 126 is inserted into the first vertical portion 142 of each rod reinforcing rod 140, and then the support ring again. (122) is placed on top of the concrete pile (C). At this time, the first vertical portion 142 of each bar reinforcing bar 140 is disposed on the inner surface of the support ring 122. Under such a state, the threaded portion 130 of each hinge bolt 126 passes through the coupling hole 124 formed in the support ring 122, and then the fastening nut 134 is attached to the threaded portion 130 penetrated through the support ring 122. When fastening), each bar reinforcement 140 is supported without shaking.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims. You will understand.

1 is a perspective view showing a state in which the head reinforcement structure of the concrete pile according to the present invention is mounted on the concrete pile,

2 is an exploded perspective view showing an exploded head reinforcement structure shown in Figure 1, and

3 is a cross-sectional view taken along the line A-A of FIG.

Explanation of symbols on the main parts of the drawing

100: head reinforcement structure of concrete pile 110: bottom plate

112: through hole 114: incision

120: support member 122: support ring

124: coupling hole 126: hinge bolt

128: head 130: screw

132: male thread 134: tightening nut

136: female thread 140: rod reinforcement

142: first vertical portion 144: horizontal portion

146: second vertical portion

Claims (4)

In the head reinforcement structure fixedly inserted into the ground and exposed to the ground provided on the top of the conventional concrete pile, the head is arranged, A bottom plate disposed horizontally inside the concrete pile and having a plurality of through holes formed at a position adjacent to an edge thereof; A support ring placed on an upper surface of the concrete pile and having a plurality of coupling holes formed along an inner diameter, a head having an annular ring shape, a screw extending through the head and passing through the coupling hole and the coupling hole; A support member having a plurality of hinge bolts having fastening nuts fastened to one threaded portion; And A first vertical portion extending vertically upwardly on an upper surface of the concrete pile while being fitted to the head, bent vertically at a lower portion of the first vertical portion to be spread over an upper surface of the concrete pile; A plurality of rod reinforcing bars having a horizontal portion extending on the inner side of the second vertical portion bent vertically at the extension end of the horizontal portion and vertically extending along the inner side of the concrete pile and coupled to the through hole of the bottom plate. Head reinforcement structure of the concrete pile, characterized in that consisting of. The concrete pile of claim 1, wherein a plurality of incision lines extend from the edge of the bottom plate toward the central side of the floor plate so that the bottom plate can be easily inserted into the concrete pile having an irregular inside. Head reinforcement structure. According to claim 1, wherein a male thread is formed on the outer peripheral surface of the screw portion of the hinge bolt, a female thread is formed on the inner peripheral surface of the fastening nut, the hinge bolt is supported by the fastening nut fastened on the outer peripheral surface of the support ring Head reinforcement structure of a concrete pile, characterized in that fixed to the ring. The support nut of claim 1, wherein a support male screw is formed on an outer circumferential surface of the second vertical portion, and the second vertical portion having the support male screw penetrates the through hole, and a support nut is fastened to the support male screw penetrating the through hole. Head reinforcement structure of the concrete pile, characterized in that it is.

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