KR102370333B1 - Steel plate And Steel plate inserting PHC Pile - Google Patents

Abstract

The present invention relates to an embedded plate having an anti-rotation member for preventing rotation and a PHC pile having an embedded plate, and more specifically, to an embedded plate having an anti-rotation member for preventing rotation and a PHC pile having an embedded plate, wherein a fixed steel plate is configured inside a mold during the centrifugal molding manufacture of a PHC pile to be exposed to the front surface of the PHC pile by rotating, thereby facilitating the installation of a wale bracket and preventing the fixed steel plate from being separated from a regular position or rotating inside the mode for centrifugal molding during the assembly and centrifugal molding of a reinforcing rod net. A desirable embodiment of the embedded plate according to the present invention comprises: a fixed steel plate having the shape of a plate with a certain size; a fore-end connection material bonded at constant intervals in a lengthwise direction on a central part in the widthwise direction of the upper surface of the fixed steel plate; a steel rod for fixation fixed to the upper part of the fore-end connection material arranged in a lengthwise direction on the central part in the widthwise direction of the fixed steel plate; an anti-rotation member having a certain length and configured in a vertical direction at constant intervals in a lengthwise direction on the upper surface of the fixed steel plate; and a concrete inflow preventing member having the shape of a plate with a planar upper surface and a curved lower surface and configured at ends of both sides in the lengthwise direction of the lower surface of the fixed steel plate.

Description

A PHC file composed of an embedded plate and an embedded plate composed of an anti-rotation member for rotation prevention {Steel plate And Steel plate inserting PHC Pile}

The present invention relates to an embedded plate configured with a rotation preventing member and a PHC pile configured with an embedded plate, and more particularly, to expose the fixed steel plate to the front of the PHC pile by rotating it inside the mold during centrifugal molding manufacturing of the PHC pile. The embedded plate and the embedded plate are composed of a rotation preventing member to prevent the fixed steel plate from deviate from the original position or rotate inside the mold for centrifugal molding after assembling the reinforcing bar network and centrifugal molding while making the installation of the wale bracket easy. is related to the configured PHC file.

In general, PHC piles are manufactured by a centrifugal forming process after placing a circular reinforcing bar network made of steel wire and strips on the formwork, pouring concrete, and introducing prestress to the steel wire. The general PHC pile manufactured in this way can be added with various means to install the wale bracket in the retaining method. In this case, each means must be integrated into the PHC pile, and it must be possible to prevent damage to the concrete. Moreover, when using the steel wire forming the circular reinforcing bar network of the PHC pile, welding should be avoided. This is because, when welding is made to a steel wire, a deterioration stress is generated and a problem arises in the introduction of prestress. Therefore, in consideration of this point, a PHC file capable of installing a wale bracket should be manufactured.

As the technology that is the background of the present invention, there is Patent Registration No. 1302743 "PHC file for wall pile and construction method of retaining wall using the same" (Patent Document 1). In the background art, 'a straight surface formed equal to the width of the steel plate while being cut or indented in the longitudinal direction on the outer peripheral surface of the file body; a lifting ring installed and built into the end of the file body; and a lifting guide member formed to face the end of the file body while being perpendicular to the lifting ring so that the lifting guide rod is coupled; a bolt fixing nut buried in the straight surface spaced apart from each other to fix the steel plate; a steel plate mounted on the bolt fixing nut and fixed by welding so that a support bracket supporting the wale is in surface contact; The steel plate is in close contact with the bolt fixing nut and the straight surface, and the PHC file for wall piles, characterized in that it is fixed by fastening the bolt to the bolt fixing nut through the bolt guide hole.'

However, in the background art, the bolt fixing nut is coupled only to the concrete layer, and there is a possibility that a defect in which the bolt fixing nut is buried or damaged may occur, and in this case, there was a problem in the structural safety of the pile.

Patent Registration No. 1302743 "PHC file for wall pile and construction method of retaining wall using the same"

The present invention is to solve the above problems, so that the plate is exposed on the front side of the PHC pile to facilitate the installation of the wale bracket, and to prevent the plate from moving out of its original position or rotating inside the mold for centrifugal molding An object of the present invention is to provide an embedded plate to prevent and a PHC file configured with the embedded plate.

The present invention is a fixed steel plate having a plate shape of a certain size; a shear connecting member joined at regular intervals in the longitudinal direction at the central portion of the upper surface of the fixed steel plate in the width direction; An anti-rotation member made of a certain length and configured vertically at regular intervals in the longitudinal direction on the upper surface of the fixed steel plate; and a plate shape having a flat upper surface and a curved lower surface. At both ends in the longitudinal direction of the lower surface of the fixed steel plate To provide an embedded plate comprising a rotation preventing member for preventing rotation, characterized in that it comprises;

In addition, it is an object of the present invention to provide an embedded plate configured with an anti-rotation member for preventing rotation, characterized in that a fixed steel bar is reinforced in the longitudinal direction from the upper portion of the front end connecting material of the fixed steel plate.

In addition, the front end connecting material is formed by bending the wire and includes a horizontal joint for a certain length, and a fixing part extending in an oblique direction from one end of the joint to the upper part, so that the fixing part faces outward and the joint is positioned so that the joint overlaps. An object of the present invention is to provide an embedded plate comprising an anti-rotation member for anti-rotation, characterized in that it is joined to the upper surface of the fixed steel plate.

In addition, it is intended to provide an embedded plate comprising a rotation preventing member for preventing rotation, characterized in that the shear connecting member is formed by bending the wire into a U shape.

In addition, the anti-rotation member has a cylindrical shape with an empty inside, and a fixed socket whose lower end is joined to the upper part of the fixed steel plate, and a fixed muscle inserted into the fixed socket to be fixed. would like to provide

In addition, an upper end of the anti-rotation member is intended to provide an embedded plate configured with an anti-rotation member for preventing rotation, characterized in that a support portion extending in a direction perpendicular to the longitudinal direction of the fixed steel plate is formed.

In addition, the fixed steel plate has joint bolts configured to protrude upward, respectively, on both end sides, and the fixed steel plate is continuously arranged in the longitudinal direction, and the joint plate is added to the joint bolt to fasten it with a nut. Rotation, characterized in that An object of the present invention is to provide an embedded plate configured with an anti-rotation member for prevention.

In addition, a circular reinforcing bar network consisting of a steel wire having a certain length, arranged in a circular arrangement, into which tensile force is introduced, and a strip connecting the steel wire, is fixed to the embedded plate composed of the anti-rotation member for preventing rotation by fastening the fixing rod to the steel wire with a fixing ring. Accordingly, it is intended to provide a PHC file comprising an embedded plate, which is inserted into a mold and manufactured by centrifugal molding.

The embedded plate with the anti-rotation member of the present invention and the PHC pile with the embedded plate are configured inside the mold during centrifugal molding of the PHC pile and rotated so that the fixed steel plate is exposed on the front of the PHC pile, so that the installation of the wale bracket is easy. There is a very useful effect of assembling the reinforcing bar network and preventing the fixed steel plate from deviated from the original position or rotated inside the mold for centrifugal forming during centrifugal forming.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit 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 an embedded plate of the present invention.
FIG. 2 is a cross-sectional view of FIG. 1 .
3 is a view showing various embodiments of the fixed muscle used in the present invention.
Figure 4a is a perspective view showing a coupling embodiment of the circular reinforcing bar network and the embedded plate of the PHC pile composed of the embedded plate of the present invention.
4B is a cross-sectional view of FIG. 4A.
5 is a diagram schematically illustrating a method of manufacturing a PHC file using the embedded plate of the present invention in sequence.
6 is a perspective view of a PHC pile in which the embedded plate of the present invention is configured.
7 is a cross-sectional view of FIG. 6A.
8 is a perspective view showing an embodiment of a joint method when dividing a fixed steel plate of the present invention.
9 is a side cross-sectional view of an embodiment in which a wale bracket is installed in a PHC pile configured with an embedded plate 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.

1 is a perspective view of an embedded plate of the present invention, and FIG. 2 is a cross-sectional view of FIG. 1 .

The embedded plate 10 of the present invention includes a fixed steel plate 110 having a plate shape of a predetermined size, as shown in FIGS. 1 and 2 ; A shear connecting member 120 joined at regular intervals in the longitudinal direction in the central portion of the upper surface of the fixed steel plate 110 in the width direction; It is made of a predetermined length and is made of a rotation preventing member 160 vertically configured at regular intervals in the longitudinal direction on the upper surface of the fixed steel plate 110; ) in the longitudinal direction of the fixing steel bar 130 may be configured.

The fixed steel plate 110 is made of a flat steel plate of a certain size, and may be made to have the same length as the length of the PHC pile or to be formed to have a short predetermined length, or to have a constant length at regular intervals.

The shear connector 120 is configured on the upper part of the fixed steel plate 110 as described above, and the shear connector 120 is disposed in the longitudinal direction from the central part in the width direction of the fixed steel plate 110 to be embedded in the concrete after the PHC pile is manufactured. It serves as a shear connecting material, and in particular, provides a coupling surface for fixing the fixing steel rod 130 to the fixing steel plate 110 by various known methods such as welding, and at the same time, the fixing steel rod 130 is attached to the fixing steel plate ( 110) to serve to keep the coating thickness of the fixing steel rod 130 constant when coupled.

The shear connecting material 120 may be formed in various shapes, but the fixing steel rod 130 is spaced apart from the fixing steel plate 110 by maintaining the same distance at a certain distance, and the fixing steel rod 130 is easily joined by a method such as welding. do it

In the present invention, the shear connecting member 120 is arranged at regular intervals in the longitudinal direction of the fixed steel plate 110 so that a pair is arranged symmetrically on both sides in the width direction on the upper surface of the fixed steel plate 110, so that the fixed steel rod 130 is disposed. This can be stably seated and fixed.

At this time, the front end connecting material 120 is formed by bending a wire rod, as shown in FIG. 2A , and a horizontal joint 121 of a certain length, and a fixing part 122 extending in an oblique direction from one end of the joint 121 to the upper part. ), and as shown, when the fixing unit 122 faces outward and the bonding unit 121 is positioned to be overlapped, the pair are facing each other and joined to the upper surface of the fixed steel plate 110, the pair of Since the fixing unit 122 is configured to form a v-shape, the fixing steel rod 130 is seated on the upper portion of the pair of fixing units 122 and fixed by various methods such as welding, so that stable mounting and bonding are possible, so that uniform mounting and bonding are possible. It is possible to hold the installation position of the fixed steel plate 110 while having the same coating thickness and uniform quality.

In addition, as in FIGS. 2B and 2C , when the number of fixing steel rods 130 is large, the shear connecting material 120 may be configured by bending a wire such as a deformed reinforcing bar into a U shape to minimize interference, at this time At the time of installing the circular reinforcing bar network 210, interference with the steel wire 211 can be minimized to facilitate installation.

In particular, in the present invention, the anti-rotation member 160 of a certain length is vertically configured at regular intervals in the longitudinal direction on the upper surface of the fixed steel plate 110 so that the embedded plate 10 does not rotate or separate during centrifugal molding. can do.

Accordingly, the length of the anti-rotation member 160 is the same as the diameter of the cross-section of the PHC pile 20 or is made of a slightly smaller length.

In addition, in the lower surface of the fixed steel plate 110, the concrete inflow prevention member 150 having a curved lower surface is configured at both ends in the longitudinal direction, thereby stably supporting the fixed steel plate 110 in the mold, When concrete is injected into the mold, it is possible to prevent concrete from flowing into the outer surface of the fixed steel plate 110 .

Figure 4a is a perspective view showing a coupling embodiment of the circular reinforcing bar network and the embedded plate of the PHC pile composed of the embedded plate of the present invention, Figure 4b is a cross-sectional view of Figure 4a, Figure 5 is using the embedded plate of the present invention It is a diagram schematically showing a method of manufacturing a PHC file in order.

The anti-rotation member 160 may be made of a member such as a single reinforcing bar or a steel bar, but it facilitates movement or on-site assembly, and in particular, the anti-rotation member 160 may be formed in various lengths. It can also be manufactured as a separate type.

To this end, as shown in FIGS. 1 and 2 , it may be formed of a fixing socket 161 welded to the upper portion of the fixing steel plate 110 and a fixing muscle 161 fitted and coupled to the fixing socket 161 . Of course, the fixing muscle 162 may be additionally welded after being inserted into the fixing socket 161 .

The fixing socket 161 has a cylindrical shape with an empty inside, as shown in FIGS. 1 and 2, so that the lower end is joined to the upper part of the fixing steel plate 110, and the fixing root 162 is inserted into the fixing socket 161. make it fixed

Therefore, it is possible to configure the standard of the fixed muscle 162 in various ways according to the size of the cross-section of the PHC pile.

As in Fig. 3a, the fixed muscle 162 is made of one vertical member, or as in Figs. 3b and 5, the anti-rotation member 160 is configured inside the mold (2a) (2b), Since the upper end is supported in contact with the inner surface of the upper mold 2b, the upper end of the anti-rotation member 160 is perpendicular to the longitudinal direction of the fixed steel plate 110 so as to increase the support area and provide stable support even during rotation. The extended portion 163 may be formed, and as shown in FIG. 3c , a horizontal support member 164 of a certain length is formed at the upper end of the rotation preventing member 160 to be formed in a T-shape.

The PHC pile 20 configured with the embedded plate of the present invention is configured such that the embedded plate 10 is pre-buried on the side, thereby exposing the fixed steel plate 110 on the front side to facilitate the installation of the wale bracket.

When manufacturing the PHC pile 20 having the embedded plate of the present invention as described above, it has a constant length and is circularly arranged in the same way as a general PHC pile, and a steel wire 211 to which tensile force is introduced, and a strip connecting the steel wire 211 ( 212), the circular reinforcing bar network 210 embedded in the concrete is put in a mold and the concrete is filled and then manufactured by centrifugal molding. In the present invention, the embedded plate 10 is placed in the lower part of the lower mold 2a. At the lower part of the circular reinforcing bar network 210, the steel rod 130 for fixing is fastened to the steel wire 211 with the fixing ring 140, and after filling the inside of the lower mold 2a with concrete to a certain height, the upper mold ( 2b) is covered with the upper part of the lower mold 2a and fastened to perform centrifugal molding.

The rotation preventing member 160 may also be fixed to the circular reinforcing bar network 210 by a separate fixing ring or an iron wire.

The fixing ring 140 is made in a ring shape and one side is cut to fix the steel rod 130 for fixing by using the fixing ring 140 to the steel wire 211 of the PHC pile 20 for fixing. The entire embedded plate 10 can be fixed without welding by the steel rod 130, and can be made of various materials such as iron, synthetic resin, and the like.

Such a fixing ring 140 may be configured at regular intervals in the longitudinal direction of the fixing steel rod 130 .

At this time, when the upper mold 2b is covered with the upper part of the lower mold 2a and fastened, the fixed steel plate 110 is located at the lower part inside the cross-section of the molds 2a and 2b, and the upper end of the rotation preventing member 160 . is located on the upper portion of the cross section of the mold (2a) (2b) and comes into contact with the lower surface of the upper mold (2b), so that the embedded plate 10 does not rotate while the fixed steel plate 110 located at the lower part is out of position and the upper part It can play a role in maintaining the embedding depth by preventing it from rising to the bottom.

Therefore, even in centrifugal molding, the embedded plate 10 is fixed to the steel wire 211, and the anti-rotation member 160 is formed with a length close to the diameter inside the cross-section of the molds 2a and 2b, so that both ends are each The mold (2a) (2b) is to support the lower part and upper part of the cross section, respectively, so as not to be separated even during centrifugal molding.

6 is a perspective view of a PHC pile having an embedded plate of the present invention, FIG. 7 is a cross-sectional view of FIG. 6A, and FIG. 8 is a perspective view showing an embodiment of a joint method when the fixed steel plate of the present invention is divided.

The fixed steel plate 110 may be made of a single member, as in FIG. 6a, but in order to facilitate handling such as production and transportation, as shown in FIG. 6b, it may be separately manufactured and used by connecting it. .

To this end, the fixed steel plate 110 has joint bolts 190 configured to protrude upward, respectively, on both end sides, and the fixed steel plate 110 is continuously arranged in the longitudinal direction, and the joint bolt 190 is coupled to the plate. (180) can be padded to be fastened with a nut (170).

9 is a side cross-sectional view of an embodiment in which a wale bracket is installed in a PHC pile configured with an embedded plate of the present invention.

As shown in FIG. 9 , the PHC pile 20 configured with the embedded plate is constructed after exposing the fixed steel plate 110 in the embedded plate 10 , and various methods such as welding the wale bracket 30 to the fixed steel plate 110 . After bonding with the wale (50) so that it can be installed.

The PHC pile comprising the embedded plate and the embedded plate configured with the anti-rotation member of the present invention as described above is configured inside the mold during centrifugal molding of the PHC pile and rotated so that the fixed steel plate is exposed on the front of the PHC pile, thereby forming a wale bracket of the present invention. While facilitating installation, there is a very useful effect of assembling the reinforcing bar network and preventing the fixed steel plate from deviated from the original position or rotated inside the mold for centrifugal forming during centrifugal forming.

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: embedded plate
110: fixed steel plate
120: shear connector
130: fixed steel bar
140: fixing ring
160: rotation prevention member
20: PHC file with embedded plate configured
30: wale bracket
50: belt

Claims (9)

In the embedded plate used by inserting into the inside of the mold (2a) (2b) at the time of centrifugal molding manufacturing of the PHC file (20),
a fixed steel plate 110 having a plate shape of a certain size;
A shear connecting member 120 joined at regular intervals in the longitudinal direction in the central portion of the upper surface of the fixed steel plate 110 in the width direction;
It is made of a certain length and is vertically configured at regular intervals in the longitudinal direction on the upper surface of the fixed steel plate 110, and is the same as the diameter of the cross-section of the PHC pile 20 or has a length smaller by a certain length, mold (2a) (2b) a rotation preventing member 160 for preventing separation even during centrifugal molding so that both ends respectively support the lower and upper portions of the cross-section of the mold (2a) and (2b) in the cross-section of the; and
The upper surface is flat and the lower surface has a plate shape made of a curved surface, and the concrete inflow prevention members 150 respectively configured at both ends in the longitudinal direction of the lower surface of the fixed steel plate 110; Recessed plate with prevention member. The method according to claim 1,
An embedded plate configured with an anti-rotation member for rotation prevention, characterized in that the fixing steel bar 130 is reinforced in the longitudinal direction from the upper portion of the front end connector 120 of the fixing steel plate 110 . The method according to claim 1,
The front end connecting material 120 is formed by bending a wire rod and includes a horizontal joint 121 of a certain length and a fixing part 122 extending in an oblique direction from one end of the joint 121 to the upper part,
An embedded plate configured with an anti-rotation member for preventing rotation, characterized in that the fixing unit 122 faces outward and the bonding unit 121 is positioned to be overlapped and joined to the upper surface of the fixed steel plate 110 facing each other. The method according to claim 1,
The shear connecting member 120 is an embedded plate comprising a rotation preventing member for rotation prevention, characterized in that the wire rod is bent in a U shape. The method according to claim 1,
The anti-rotation member 160 has a cylindrical shape with an empty interior, the lower end of which is joined to the upper part of the fixed steel plate 110 , and a fixed root 162 inserted into the fixed socket 161 and fixed. An embedded plate comprising an anti-rotation member for anti-rotation, characterized in that it. The method according to claim 1,
The upper end of the fixed root 162 of the anti-rotation member 160 is formed with a support portion 163 extending in a perpendicular direction to the longitudinal direction of the fixed steel plate 110. The method according to claim 1,
An embedded plate comprising a rotation prevention member for rotation prevention, characterized in that the upper end of the fixed root 162 of the rotation prevention member 160 is formed with a horizontal support member 164 of a certain length and is formed in a T shape. The method according to claim 1,
The fixed steel plate 110 has joint bolts 190 configured to protrude upward, respectively, on both end sides,
By continuously disposing the fixed steel plate 110 in the longitudinal direction,
An embedded plate configured with an anti-rotation member for rotation prevention, characterized in that the coupling plate 180 is added to the joint bolt 190 to be fastened with a nut 170 . In the PHC pile comprising the embedded plate of any one of claims 1 to 8,
A circular reinforcing bar network 210 consisting of a steel wire 211 having a certain length and a circular arrangement into which a tensile force is introduced, and a strip 212 connecting the steel wire 211,
By fastening the steel rod 130 for fixing with a fixing ring 140 to the steel wire 211 and fixing it to the embedded plate 10 having a rotation prevention member for rotation prevention,
A PHC file comprising an embedded plate, characterized in that it is inserted into the mold (2a) (2b) and manufactured by centrifugal molding.

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