KR20070084975A - Iron rod cap assembly for reinforcing concrete pile - Google Patents

Abstract

An iron rod cap assembly for reinforcing a concrete pile is provided to ensure the strength of the iron rod in vertical and horizontal directions by using an insert scheme. An iron rod cap assembly for reinforcing a concrete pile comprises a cap(11), a plurality of iron rods(12), a support plate(13) and an insert type coupler(14). The cap is inserted into a hole of the concrete pile. The iron rods are formed along an edge of the cap vertically to an upper surface of the cap. The support plate is spaced apart from the upper surface of the cap and has an inner space for pouring concrete into the concrete pile. The insert type coupler has an inner space, which has a common center with that of the support plate, and is forcedly inserted between the iron rods in the inner space of the support plate.

Description

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 rebar cap assembly for reinforcing concrete piles according to another prior art.

3A and 3B are perspective views illustrating a state before and after assembly of a reinforcing cap assembly for reinforcing concrete piles according to a first embodiment of the present invention.

4A and 4B are perspective views showing a state before and after assembly of the reinforcing cap assembly for reinforcing concrete piles according to the second embodiment of the present invention.

5A and 5B are perspective views showing a state before and after assembling the reinforcing cap assembly for reinforcing concrete piles according to the third embodiment of the present invention.

Description of the main parts of the drawing

10: rebar cap assembly 11: cap

12: rebar 13: support plate

14: fitting fastening 17: locking fastening

19: adhesive fastening 20: adhesive applicator

The present invention relates to a reinforcing steel cap assembly for reinforcing concrete piles used in the foundation work of a structure, and for reinforcing concrete piles having a structure in which a support plate and reinforcement or a support plate and a cap are fastened using a variety of new methods rather than existing welding methods. A rebar cap assembly.

In general, when building structures such as buildings, bridges, and dams on the ground, foundation work is carried out to transfer the vertical load by its own weight and the horizontal load by earthquake or wind to the ground. . Particularly, in the case of soft ground, a kind of pile called pile is embedded in the ground, and then concrete is placed on the pile to form a floor slab, and the structure is constructed based on the pile. Piles are mainly made of steel pipes or concrete. Recently, concrete piles have become the mainstream.

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 top of the 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.

Referring to FIG. 1, after installing a plurality of concrete piles 210 at a predetermined depth in the ground 100, the pile upper portion 111 so that the height of the pile upper portion 111 protruding to the upper portion of the ground 100 is constant. Shred a portion of). At this time, when the reinforcing bars 140 contained in the concrete pile 210 are exposed to the upper end portion of the pile 111, all of them are cut to a uniform height. Subsequently, the cap assembly 120 is inserted into the inner hole formed in the center of the concrete pile 210, and the hook portion 130 formed at the edge of the cap assembly 120 is fixed to the rebar 140 by the hook 140. Construct the floor slab by pouring concrete 150 up.

This prior art has a problem that the method itself of crushing the upper end 111 of the concrete pile 210 and cutting the reinforcing bars 140 is complicated, uneconomical, and poor safety and reliability.

In this regard, the present applicant is one-cut in Korean Patent Application No. 10-2005-0079165 (basic construction construction method using concrete pile) and Korean Utility Model Registration Application No. 20-2005-0024747 (cap assembly of basic public pile) We have proposed a new cutting assembly and a suitable cap assembly. One-cutting method is to cut all the reinforcing bars embedded in the pile at the time of breaking the upper end of the concrete pile, there is an advantage that the process is simple, economical, safety and reliability is excellent.

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

Referring to FIG. 2, the cap assembly 220 includes a cap 221 installed to block an inner hole of the concrete pile, a first support plate 222a and a second support plate 222b spaced apart from the cap 221 by a predetermined distance. And a plurality of reinforcing bars 223 installed in the cap 221 and penetrating the two support plates 222a and 222b to protrude upward of the concrete pile. In the cap assembly 220 of this configuration, the first support plate 222a is mounted on the upper end of the concrete pile to support and fix the cap assembly 220 inserted into the inner hole of the concrete pile.

The cap assembly 220 may solve the problems in the related art described above with reference to FIG. 1, but may cause a weakening of reliability depending on a fastening method between the first support plate 222a and the reinforcing bars 223. . That is, when the first supporting plate 222a and the reinforcing bars 223 are fastened to each other by welding, rebar strength in the vertical and horizontal directions may decrease at the welding site of the reinforcing bars 223.

Accordingly, an object of the present invention is to provide a reinforcing cap assembly for reinforcing concrete piles of a structure for fastening, supporting, or fixing a support plate and reinforcement or a support plate and a cap by using a new method rather than the existing welding method.

Another object of the present invention is to provide a reinforcing bar cap assembly for reinforcing concrete piles that can secure reinforcing bars in vertical and horizontal directions.

Still another object of the present invention is to provide a reinforcing cap assembly for reinforcing concrete piles, which is economical by reducing manufacturing costs.

In order to achieve these objects, the reinforcing bar cap assembly for concrete pile reinforcement according to the present invention includes a cap in the form of a disc inserted into an inner hole of the concrete pile to block the inner hole; A plurality of reinforcing bars installed along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into an inner hole of the concrete pile; And an inner space of the support plate and an inner space formed concentrically and inserted into the rebars in the inner space of the support plate to fit the support plate and the reinforcing bars.

In this case, it is preferable that the fitting fastening part is inclined on the outer side, and the fitting fastening part may include a concave part protruding so that its upper end is placed on each of the concave parts accommodating the reinforcing bars and the upper surface of the support plate.

Reinforcing bar cap assembly for reinforcing concrete piles according to the present invention, the cap of the disc shape is inserted into the inner hole of the concrete pile to block the inner hole; A plurality of reinforcing bars installed along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into the inner hole of the concrete pile, and having an insertion hole through which the respective bars are fastened; And a locking type formed integrally with the support plate in the insertion hole and separated into a plurality of wings, and the reinforcing bar is folded in the insertion direction when passing through the insertion hole and hooked to the surface of the reinforcing bar to fasten the support plate and the reinforcing bar. It may be configured to include a part.

At this time, the locking fastening portion is preferably folded on the upper surface side of the support plate.

In addition, the reinforcement cap assembly for reinforcing concrete piles of the present invention includes: a cap having a disc shape inserted into an inner hole of the concrete pile and blocking the inner hole; A plurality of reinforcing bars installed along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into the inner hole of the concrete pile, and having an insertion hole through which the respective bars are fastened; And an adhesive fastening part applied between the insertion hole of the support plate and the rebar to fasten the support plate and the reinforcement by an adhesive force.

Here, the adhesive fastening part is an epoxy material, for example.

In the reinforcement cap assembly for reinforcing concrete piles of the present invention, the cap and the support plate are preferably made of a plastic material, and the cap may include a plurality of wings formed at an edge thereof.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

In describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly communicate without obscure the subject matter of the present invention by omitting unnecessary description. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size. The same reference numerals are used for the same or corresponding components throughout the drawings.

First Example

3A and 3B are perspective views illustrating a state before and after assembling the reinforcing cap assembly for reinforcing concrete piles according to the first embodiment of the present invention.

3A and 3B, the reinforcing cap assembly 10 of the first embodiment includes a cap 11 having a disc shape, a plurality of reinforcing bars 12, a support plate 13, and a fitting fastening portion 14. do. The rebar cap assembly 10 of this configuration is used to reinforce the concrete pile cut at the upper end by the one-cutting method.

The cap 11 is inserted into the inner hole to block the inner hole of the concrete pile. The cap 11 may have a shape as shown in FIG. 2. The material of the cap 11 may be metal or plastic.

The plurality of reinforcing bars 12 are installed along the edge of the upper surface of the cap 11 and are installed to be perpendicular to the upper surface of the cap 11. Reinforcing bars 12 may penetrate a portion of the cap 11 through the cap 11 as shown in FIG. 2. Reinforcing bars 12 may have a form that slightly opens toward the top, that is, the diameter of the virtual circle made by the entire reinforcing bars 12 slightly increases.

The support plate 13 is located at the middle or top side of the reinforcing bars 12 a distance from the top surface of the cap 11. The support plate 13 has a ring shape in which the inner space 13a is formed. In order to pour the concrete for the floor slab into the inner hole of the concrete pile, an inner space 13a must be formed in the support plate 13. The plurality of reinforcing bars 12 are located adjacent to the inner side of the supporting plate 13 while passing through the inner space 13a of the supporting plate 13. At this time, the reinforcing bars 12 are fastened to the support plate 13 by the fitting fastening portion 14.

The fitting fastening part 14 has an inner space 13a of the support plate 13 and a concentric inner space 14a so as to pour concrete, and reinforcing the support plate 13 and the reinforcing bars 12 to fasten the concrete. 12 are inserted into the inner space 13a of the support plate 13. The diameter of the circle formed by the inner surface of the support plate 13, the diameter of the circle formed by the reinforcing bars 12, the diameter of the circle formed by the outer surface of the fitting fastening portion 14 is almost the same. Therefore, by inserting the fitting fastening portion 14 into the inside of the reinforcing bars 12 located in the inner space 13a of the supporting plate 13 as a force fit, the supporting plate 13 and the reinforcing bars 12 may be physically fastened.

Referring to the process of fastening the support plate 13 and the reinforcing bars 12 using the fitting fastening portion 14, first, the reinforcing bars 12 are inserted into the inner space 13a of the support plate 13. At this time, the reinforcing bars 12 are located along the inner surface of the support plate 13. Subsequently, the fitting fastening portion 14 is forcibly inserted into the bars 12. Reinforcing bars 12 are pushed in close contact with the inner surface of the support plate 13 while being pushed out by the fitting fastening portion 14.

In order to facilitate the interference fit of the fitting fastening portion 14, the outer surface of the fitting fastening portion 14 may have a slightly inclined shape. In addition, in order to increase the fastening force by increasing the insertion depth, the overall height of the fitting fastening portion 14 is preferably larger than the thickness of the supporting plate 13. It is preferable that the upper end of the fitting fastening part 14 consists of the concave part 14b which accommodates each rebar 12, and the convex part 14c which protrudes so that it may be mounted on the upper surface of the support plate 13. As shown in FIG. The insertion direction of the fitting fastening portion 14 may be the upper surface side of the support plate 13 as shown in FIG. 3A, or in some cases, may be the lower surface side of the support plate 13.

Like the cap 11, the support plate 13 and the fitting fastening portion 14 may be made of metal or plastic. In particular, when the fitting fastening portion 14 is used without using a conventional welding method, the reinforcing bar strength can be sufficiently secured, and a plastic material that cannot be welded can be used as a material of the support plate 13, thereby greatly reducing the manufacturing cost. Can be saved.

2nd Example

4A and 4B are perspective views illustrating a state before and after assembly of the reinforcing cap assembly for reinforcing concrete piles according to the second embodiment of the present invention.

In order to fasten the reinforcing bar and the reinforcing bar of the reinforcing cap assembly, the second embodiment uses the locking fastening unit 17 as shown in Figs. 4A and 4B, unlike the above-described embodiment.

The engaging fastening portion 17 is formed integrally with the support plate 13 in the insertion hole of the support plate 13 has a shape separated into a plurality of wings. When each of the reinforcing bars 12 passes through the insertion hole of the support plate 13, the locking fastening portion 17 is wrapped around the reinforcing bars 12 while the wings are folded along the insertion direction of the reinforcing bars 12. The engaging fastening part 17 supports the reinforcing bar 12 by the elastic force of the wing, whereby the support plate 13 and the reinforcing bar 12 are fastened to each other.

In particular, the reinforcing bar 12 is preferably inserted from the bottom to the top. When the reinforcing bar 12 is inserted in the upward direction, the locking fastening part 17 is folded on the upper surface of the support plate 13, and the folded wing is caught on the surface of the screw reinforcing bar 12 so that the reinforcing bar 12 is pulled downward. Will be prevented.

The third Example

5A and 5B are perspective views illustrating a state before and after assembly of a reinforcing cap assembly for reinforcing concrete piles according to a third exemplary embodiment of the present invention.

Unlike the above embodiments, the third embodiment uses adhesive fastening to fasten the reinforcing bar with the support plate of the rebar cap assembly.

5A and 5B, after inserting the reinforcing bar 12 into the insertion hole of the supporting plate 13, the adhesive is applied along the boundary between the supporting plate 13 and the reinforcing bar 12 using the applicator 20. (19) is applied. The applied adhesive 19 is cured to form an adhesive fastening part for fastening the support plate 13 and the reinforcing bar 12. The adhesive 19 is, for example, epoxy type, but is not necessarily limited thereto.

The adhesive fastening portion 19 can be used by itself, but can also be used with other fastening methods described above. In other words, the fastening force can be further enhanced by using the fastening part of the first embodiment and the fastening part of the second embodiment.

Since the rebar cap assembly having the configuration of the present embodiments does not use the conventional welding method, all components other than the reinforcing bars 12, that is, the cap 11 and the support plate 13 may be made of a plastic material. This significantly reduces manufacturing costs and simplifies the manufacturing process. On the other hand, although not shown in the drawings, when manufacturing the cap 11, the fingerboard 13 from a plastic material in order to increase the strength may be embedded in the cap 11, the support plate 13 of a plastic material.

In the present embodiments, only the method of fastening the support plate 13 and the reinforcing bar 12 has been described, but the same method may be applied to the fastening of the cap 11 and the reinforcing bar 12, and the support plate 13 and the cap 11 may be used. In the case where there is a second support plate (eg, 222b of FIG. 2) in between, it is obvious that the same method may be applied to the fastening of the second support plate and the reinforcing bar 12.

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.

Reinforcement cap assembly for reinforcing concrete piles according to the present invention is fastened to the support plate and the reinforcement or support plate and the cap by using the fastening fastening portion, the fastening fastening portion, the adhesive fastening portion. Therefore, since the conventional welding method does not have to be used, the reinforcing bar strength in the vertical and horizontal directions can be secured.

In addition, the reinforced steel cap assembly for reinforcing concrete piles of the present invention may be manufactured using a plastic material that is not welded because it does not use a welding method. Therefore, the manufacturing process is simple and the manufacturing cost can be greatly reduced.

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 along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into an inner hole of the concrete pile; And A fitting fastening part having an inner space of the supporting plate and an inner space having a concentric shape and inserted into the reinforcing bars in the inner space of the supporting plate to fasten the supporting plate and the reinforcing bars; Reinforcement cap assembly for reinforcing concrete piles including a. The method of claim 1, Reinforced cap assembly for reinforcing concrete piles, characterized in that the fitting fastening portion is inclined on the outer side. The method according to claim 1 or 2, Reinforced cap assembly for reinforcing concrete piles reinforcement, characterized in that the upper fastening portion is composed of a concave portion protruding so that the upper end of each of the reinforcing receiving the rebar and the upper surface of the support plate. 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 along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into the inner hole of the concrete pile, and having an insertion hole through which the respective bars are fastened; And It is formed integrally with the support plate in the insertion hole is separated into a plurality of wings and when the reinforcing bar is folded in the insertion direction when passing through the insertion hole, the engaging fastening part for fastening the support plate and the reinforcing bar on the surface of the reinforcing bar ; Reinforcement cap assembly for reinforcing concrete piles including a. The method of claim 4, wherein Reinforced cap assembly for reinforcing concrete piles, characterized in that the engaging fastening portion is folded on the upper surface side of the support plate. 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 along an edge of the cap to be perpendicular to an upper surface of the cap; A support plate installed at a predetermined distance from an upper surface of the cap and having an inner space to pour concrete into the inner hole of the concrete pile, and having an insertion hole through which the respective bars are fastened; And An adhesive fastening part applied between the insertion hole of the support plate and the rebar to fasten the support plate and the reinforcing bar by adhesive force; Reinforcement cap assembly for reinforcing concrete piles including a. The method of claim 6, Reinforced cap assembly for reinforcing concrete piles, characterized in that the adhesive fastening portion is made of an epoxy material. The method according to any one of claims 1, 4 and 6, Reinforced cap assembly for reinforcing concrete piles, characterized in that the cap and the support plate is made of a metal or plastic material. The method according to any one of claims 1, 4 and 6, The cap is a reinforced concrete reinforcement cap assembly, characterized in that it has a plurality of wings formed on the edge.

Images