KR20070110187A - Iron rod cap assembly for reinforcing concrete pile - Google Patents

Abstract

A reinforcing bar cap assembly for reinforcing concrete piles is provided to preclude the assembly from being cracked without bubbles by forming support rod recessed parts and support rod projected parts to support rods. A reinforcing bar cap assembly(100) for reinforcing concrete piles comprises a disk shaped cap(130), a plurality of reinforcing bars(120), and support rods(110). The cap is inserted in inner holes of the concrete piles to close the inner holes. The reinforcing bars are vertically installed along the edge surface of the upper surface of the cap. The support rods are formed with a plurality of curved surfaces(111) surface-contacted with the inside of the outer peripheral surface of the reinforcing bars to connect the curved surfaces mutually, and formed with a plurality of projected shapes to be mounted on the upper surfaces of the concrete piles. The support rods are formed with support rod recessed parts(113) and support rod projected parts(115).

Description

Reinforced cap assembly for concrete pile reinforcement {Iron Rod Cap Assembly for reinforcing concrete pile}

1 is a cross-sectional view showing a state in which the cap assembly according to the prior art is inserted into the concrete pile.

Figure 2 is a perspective view showing a reinforcement cap assembly for reinforcing concrete piles according to the prior art.

Figure 3 is a schematic view showing a first embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

4 is a plan view of the reinforcement cap assembly for reinforcing the concrete pile of FIG.

Figure 5 is a schematic view showing a second embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

Figure 6 is a plan view showing a third embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

Description of the main parts of the drawing

100 cap assembly 110 support

111: curved surface 113: support depression

115: support protrusion 120: rebar

130: cap 131: body

132: wing 140: elastic spring

The present invention relates to a reinforcing steel cap assembly for reinforcing concrete piles used in structural foundations, and to a support for improved bearing capacity and a reinforcing steel cap assembly for reinforcing concrete piles to improve a bonding force of reinforcing bars and supports.

In general, when building structures such as buildings, bridges, and dams on the ground, foundation work is carried out to transfer the load in the vertical direction by the weight of the structure and the horizontal load by the earthquake or wind to the ground.

In particular, in the case of soft ground, a kind of pile called a pile (pile) is driven into the ground, and then concrete is poured into the upper portion of the pile to form a floor slab and construct a structure based on the same. Piles are mainly made of steel pipes or concrete, but concrete piles have become mainstream in recent years.

The cap assembly of the concrete pile is used to prevent the concrete from flowing down to the floor through the inner hole of the pile when placing concrete on the pile top.

1 is a cross-sectional view showing a state in which the cap assembly according to the prior art is inserted into the concrete pile.

As shown, after installing a plurality of concrete piles 20 at a predetermined depth in the ground (10), the pile upper end portion 11 so that the height of the pile upper end portion 11 protruding to the upper portion of the ground (10) is constant. Shred part of it. At this time, when the reinforcing bar 14 contained in the concrete pile 20 is exposed over the upper end portion 11 of the pile, it is cut at a uniform height. Subsequently, the cap assembly 12 is inserted into the inner hole formed in the center of the concrete pile 20, and the hook portion 13 formed at the edge of the cap assembly 12 is fixed to the reinforcing bars 14 and then the pile 20 is fixed. Construct the floor slab by pouring concrete (15) up.

This prior art has a problem that the method itself of crushing the upper end 11 of the concrete pile 20 and cutting the reinforcing bars 14 is complicated, uneconomical, and poor in safety and reliability.

In this regard, the present applicant is a cap assembly of a foundation construction file using concrete files of Republic of Korea Patent No. 10-0583880 (2006.05.20) and Republic of Korea Patent No. 10-0583879 (2006.05.20). A one-cutting process and a new cap assembly suitable therefor are disclosed. Accordingly, the one-cutting method is to cut all of the reinforcing bars embedded in the pile at the same time when crushing the upper end of the concrete pile, there is an advantage that the method is simple, economical and excellent safety and reliability.

The one-cutting method also cuts and removes all rebar exposed above the top of the pile, making the existing cap assembly unusable. This necessitates the need for a new cap assembly, and the applicant has proposed a new concrete pile reinforcement cap assembly in the applications listed above.

The structure of a new concrete pile reinforcement reinforcing cap assembly is shown in FIG. 2, which is a perspective view showing a reinforcement cap assembly for reinforcing concrete piles according to the prior art.

As shown, the cap assembly 30 includes a cap 31 installed to block the inner hole of the concrete pile, and a first support plate 32a and a second support plate 32b spaced apart from the cap 31 by a predetermined distance. And a plurality of reinforcing bars 33 installed on the cap 31 and penetrating the two support plates 32a and 32b to protrude upward of the concrete pile.

In the cap assembly 30 of this configuration, the first support plate 32a is mounted on the upper end of the concrete pile to support and fix the cap assembly 30 inserted into the inner hole of the concrete pile.

Such a cap assembly 30 can solve all the problems in the prior art described above with reference to FIG. However, when concrete is placed on the first support plate 32a seated on the upper surface of the concrete pile, the concrete flows smoothly because the area of the space formed between the first support plate 32a and the concrete pile is large and its width is narrow. Cracks occur due to the occurrence of bubbles.

In addition, depending on the fastening method between the first support plate 32a and the reinforcing bar 33 may cause a decrease in reliability.

When the first supporting plate 32a and the reinforcing bar 33 are welded in the fastening method, problems in the reinforcing bar strength in the vertical and horizontal directions are reduced at the welding site of the reinforcing bar 33.

The reason for such a problem is that the welding part is a site where the first support plate 32a and the reinforcing bar 33 are in contact with each other, so that the welding time should be kept long for solid welding. This is because at the point contact portion between the 33 and the first support plate 32a, that is, at one side of the reinforcing bar 33, a weak portion by welding is generated.

To this end, if the welding time is reduced, it is vulnerable to external shocks, that is, the coupling force between the reinforcing bar 33 and the first support plate 32a is weak, causing the reinforcing bar 33 to be easily detached from the first support plate 32a. do.

Therefore, it is required to develop a cap assembly capable of improving the bonding force between the support and the reinforcing bar, and supporting the support of the support and preventing the occurrence of cracks by minimizing the generation of bubbles after the concrete is placed.

An object of the present invention for solving the above problems is to increase the binding force between the reinforcing bar and the support, the support of the support is excellent and can prevent the degradation of the rigidity of the reinforcement by welding and can reduce the occurrence of cracks reinforce the concrete pile To provide a reinforcing bar cap assembly.

In order to achieve the above object, the reinforcing bar cap assembly for concrete pile reinforcement according to the present invention is a reinforcing cap assembly for reinforcing concrete pile, the disc having a disc shape inserted into an inner hole of the concrete pile and blocking the inner hole, Inner and outer surfaces of each outer circumferential surface of the reinforcing bar based on a plurality of reinforcing bars installed in a vertical direction along an upper surface edge surface of the cap, and a center formed by the plurality of reinforcing bars at a position spaced a predetermined distance from the upper surface of the cap. A plurality of curved surfaces are formed in contact and includes a support having a plurality of projecting shapes for interconnecting adjacent curved surfaces and for seating on an upper surface of the concrete pile.

Preferably, the support is formed with a support depression and a support protrusion having a curved shape in the transverse direction in the protruding portion of the support made of iron plate in order to have a support force after concrete pouring.

Preferably, the support recess and the support protrusion are formed in at least one direction selected from the inside and the outside on the basis of the protruding portion of the support.

Preferably, the support is composed of at least one protruding portion among a plurality of 'V' shapes and a plurality of 'U' shapes.

Preferably, the curved surface of the support is welded with the inner circumferential surface of each of the reinforcing bars in surface contact with the curved surface to fix the position.

In another embodiment of the reinforcement cap assembly for reinforcing concrete piles, a disk-shaped cap inserted into an inner hole of the concrete pile and blocking the inner hole, and a plurality of reinforcing bars installed in a vertical direction along an upper edge of the cap. And a plurality of curved surfaces that are in surface contact with the inner side of each outer circumferential surface of the rebars based on a center formed by the plurality of rebars at a position spaced a predetermined distance from the upper surface of the cap, and the adjacent curved surfaces A support having a plurality of protruding shapes for interconnecting and seating on an upper surface of the concrete pile, and a plurality of elastic springs having a shape including the reinforcement and having both ends fastened to the support such that the reinforcing bars are elastically fixed to the support. It includes.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are denoted by the same reference numerals in any where possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, a description will be given with reference to FIG. 1 and like reference numerals refer to like parts.

Figure 3 is a block diagram showing a first embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

As shown, the reinforcement cap assembly 100 for reinforcing concrete piles is composed of a cap 130, a reinforcement 120, and a support 110.

Cap 130 is inserted into the inner hole to block the inner hole of the concrete pile 20, the material of the cap 130 is made of metal or synthetic resin.

Cap 130 is formed of a circular plate and the same shape as the inner hole of the concrete pile 20 and formed of a disk-shaped body 131 and the wing portion 132 is formed in succession to each other and folded separately.

The body 131 is formed in a circular shape in which one side edge portion is cut, but may be formed in a circular shape that is not cut. This is a hollow cylindrical pile, which is generally used by the concrete pile 20 using centrifugal force. For example, a steel cylinder having a high density and a high strength by reinforcing steel for supporting pile load, pouring concrete, and rotating it at high speed in a forced cylindrical mold It is formed as a concrete pile of a sudden stop after high-speed rotation, the inner hole portion located in the center of the concrete pile may be formed in a shape in which one side is cut.

Reinforcing rod 120 is a plurality of installed in the vertical direction with the cap 130 along the edge surface on the top surface of the cap 130, do not contact the interior of the concrete pile 20, located on the upper side of the cap 130 After coupling with the support 110 is positioned to protrude above the upper end of the concrete pile 20 protruding to the top of the ground (10).

In addition, the reinforcing bar 120 is not only for reinforcing the rigidity but also to install a plurality of horizontal reinforcing bar in the horizontal direction during the construction of the floor slab, it is necessary for the reinforcement work of the horizontal reinforcing bars.

The support 110 is installed at a distance apart from the upper surface of the cap 130 by a predetermined distance, located on the upper portion of the cap 130, a thin steel plate having a predetermined height and a predetermined range with the inner surface of each reinforcement 120 It has a plurality of curved surfaces 111 that are in surface contact within the interior (90 to 270 degrees).

Flexure surface 111 of the support 110 in surface contact with the inner surface of the reinforcement 120 wraps the center of the reinforcement 120 preferably 200 degrees to 270 degrees, so the coupling force of the support 110 and the reinforcement 120 Improved, the curved surface 111 recessed inwardly of the reinforcing bar 120 is formed based on the center formed by a plurality of reinforcing bars. In addition, the steel plate passing between the neighboring reinforcing bars protrude out of the reinforcing bars 120 based on the center formed by the plurality of reinforcing bars to have a plurality of 'U' shape and the curved surface 111 Interconnect them.

When the support 110 is seated on the concrete pile 20 and the circular reinforcing bar between the reinforcing bar 120 on the upper surface of the support 110 and the concrete is placed, the support force of the support is weak because of the thin steel plate, the support 110 In the center of the protruding portion of the 'U' of the () to form a support recess recess 113 and the support protrusion protrusion 115 of the curved shape in the transverse direction to improve the supporting force.

3A is an enlarged cross-section of the support recessed part 113 and the support protrusion protrusion 115, and is formed inward with respect to the protruding portion of the support to improve the support force of the support. In addition, the support depression portion 113 and the support protrusion protrusion 115 may be formed to the outside based on the protruding portion of the support.

The support 110 supports the reinforcing rods 120 so that a predetermined interval is maintained, and when the concrete is placed in a state where the thin support 110 is seated on the upper surface of the concrete pile 20, the area of the support 110 is small. Therefore, the concrete overlaps with the upper surface of the concrete pile 20, and the concrete flows smoothly, and as the contact area with the flowed concrete decreases, bubbles are not generated in the poured concrete, so that no crack occurs, and the concrete pile 20 It is easy to combine with the upper surface.

In addition, the inner surface of each of the outer circumferential surface of the reinforcing bars 120 and the curved surface 111 of the support 110 based on the center formed by a plurality of reinforcing bars are contacted by welding and the welding is not performed even if only a part of the welding is made The contact state of the maintains the surface contact state and due to the elasticity of the curved surface 111, the bonding force between each other is improved.

In addition, the reinforcing bar 120 may be maintained in a support state coupled by the support 110 in a vertical state at all times.

The rebar cap assembly 100 of this configuration is used to reinforce the concrete pile 20, the upper end is cut by the one-cutting method.

4 is a plan view of the reinforcement cap assembly for reinforcing concrete piles of FIG. 3, and as shown, the configuration of the reinforcement cap assembly 100 is the same as that of FIG. 3.

Figure 5 is a block diagram showing a second embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

As shown, the configuration of the cap (cap; 130), the reinforcing bar 120, and the support 110 of the cap assembly 100 is configured in the same manner as in Figure 3, the shape of the support 110 is shown in FIG. It is different from the shape of the support 110. Therefore, description of the same configuration as in FIG. 3 is omitted.

In FIG. 5, the curved surface 111 recessed inward of each outer circumferential surface of the rebar 120 based on the center formed by the plurality of rebars makes surface contact with each outer circumferential surface of the rebar 120. In addition, the steel plate passing between the neighboring reinforcing bars protrude outwards based on the center formed by the plurality of reinforcing bars to form a plurality of 'V (V)' shape and interconnects the curved surfaces (111).

The support 110 exemplifies a protruding portion having a plurality of 'U' shapes and a plurality of 'V' shapes, but is not limited thereto. As a reference, the inner side of each outer circumferential surface of the reinforcing bar 120 maintains a form of surface contact instead of point contact.

As such, the inner side of the reinforcement 120 and the curved surface 111 of the support 110 are contacted by welding based on the center formed by the plurality of rebars. Even if only a part of the welding is performed, the contact state of the non-welded portion maintains the surface contact state. Due to the elasticity of the curved surface 111, the coupling force and the support force of the inner side of each outer circumferential surface of the reinforcement 120 and the support 110 may be reduced. As it improves, deviations from external requirements are suppressed.

Figure 6 is a plan view showing a third embodiment of the reinforcement cap assembly for reinforcing concrete piles according to the present invention.

As shown, the reinforcement cap assembly 100 for concrete pile reinforcement is composed of a cap (130), the reinforcement 120, the support 110, and the elastic spring 140.

Cap (130), the reinforcing bar 120 constituting FIG. 6 is the same as the configuration of FIG. 3 and the support 110 is composed of at least one support selected from FIG. Therefore, the description of the same configuration as in FIGS. 3 and 4 has been omitted.

6 is a shape including a central portion of the reinforcement 120 without welding between the inner side of each outer peripheral surface of the reinforcement 120 and the curved surface 111 of the support 110 based on the central portion formed by the plurality of rebars Both ends are fastened to the reinforcement 120 and the support 110 through a plurality of elastic springs 140 are fastened to the support 110.

The cap assembly 100 having the configuration of FIGS. 3 to 6 may prevent the deterioration of the rigidity of the rebar 20 by welding, and at the same time, the rebar 120 may be formed due to the elasticity of the curved surface 111 in contact with the surface. The bonding force of the support 110 is improved, and the support force is improved due to the support depression 113 and the support protrusion protrusion 115 formed at the protruding portion of the support 110.

In addition, since the area of the support 110 seated on the upper surface of the concrete pile 20 is small, the concrete flows smoothly after the concrete is placed, there is no crack.

As described above, the present specification and drawings have been described with respect to various preferred embodiments of the present invention, although specific terms have been used, which are merely used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

According to the present invention described above, the reinforcing bar cap assembly for reinforcing concrete piles consisting of a support that extends over the upper end of the pile projecting onto the ground, the reinforcing bar is coupled to the support in a surface contact manner, and the cap is installed reinforcement, The support between the support and the reinforcing bar through the support of the shape surrounding the reinforcing bar in the inner surface and the surface contact method, and the support can be improved by forming the support depression and the support protrusion on the support made of thin steel plate.

In addition, by the cap assembly support of the present invention seated on the upper surface of the concrete pile air bubbles do not occur after the concrete is placed can prevent cracks.

In addition, the cap assembly of the present invention can prevent the degradation of the rigidity that may occur when welding the reinforcing bar and the support.

Claims (9)

In the rebar cap assembly for reinforcing concrete piles, A disk-shaped cap inserted into an inner hole of the concrete pile and blocking the inner hole; A plurality of reinforcing bars installed in a vertical direction along the upper edge of the cap; And At a position spaced apart from the upper surface of the cap by a predetermined distance, a plurality of curved surfaces which are in surface contact with the inner side of each outer circumferential surface of the rebars are formed on the basis of the center formed by the plurality of rebars, and the adjacent curved surfaces are mutually Reinforcing steel cap assembly for reinforcing concrete piles comprising a support having a plurality of protruding shapes for connecting and seating on an upper surface of the concrete pile. The method of claim 1, In the support, Reinforcing bar cap assembly for reinforcing concrete piles, characterized in that the support protrusions and the support protrusion protrusions of the curved shape in the transverse direction is formed in the protruding portion of the support made of iron plate to have a support force after the concrete casting. The method of claim 2, The support depression and the support protrusion, Reinforcement cap assembly for reinforcing concrete piles, characterized in that formed in at least one direction selected from the inside, and the outside on the basis of the protruding portion of the support. The method of claim 1, The support is, Reinforcement cap assembly for reinforcing concrete piles, characterized in that consisting of a plurality of 'V (V)' shape, and at least one protruding portion among a plurality of 'U' shape. The method of claim 1, The curved surface of the support, Reinforcement cap assembly for reinforcing concrete piles, characterized in that the position is fixed by welding the inner peripheral surface of each of the reinforcing bar in contact with the curved surface. In the rebar cap assembly for reinforcing concrete piles, A disk-shaped cap inserted into an inner hole of the concrete pile and blocking the inner hole; A plurality of reinforcing bars installed in a vertical direction along the upper edge of the cap; At a position spaced apart from the upper surface of the cap by a predetermined distance, a plurality of curved surfaces which are in surface contact with the inside of each outer circumferential surface of the rebars are formed on the basis of the center formed by the plurality of rebars, and the adjacent curved surfaces are mutually A support having a plurality of projecting shapes for connecting and seating on an upper surface of the concrete pile; And Reinforcement cap assembly for reinforcing concrete piles characterized in that the reinforcing bar including a plurality of elastic springs are fastened to the support so that the reinforcement is elastically fixed to the support. The method of claim 6, In the support, Reinforcing bar cap assembly for reinforcing concrete piles, characterized in that the support protrusions and the support protrusion protrusions of the curved shape in the transverse direction is formed in the protruding portion of the support made of iron plate to have a support force after the concrete casting. The method of claim 7, wherein The support depression and the support protrusion, Reinforcement cap assembly for reinforcing concrete piles, characterized in that formed in at least one direction selected from the inside, and the outside on the basis of the protruding portion of the support. The method of claim 6, The support is, Reinforcement cap assembly for reinforcing concrete piles, characterized in that consisting of a plurality of 'V (V)' shape, and at least one protruding portion selected from a plurality of 'U' shape.

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