KR20160130113A

KR20160130113A - Device for Blocking Hollow of Precast Concrete Pile

Info

Publication number: KR20160130113A
Application number: KR1020150062259A
Authority: KR
Inventors: 임병균; 임상훈
Original assignee: 임병균; 임상훈
Priority date: 2015-05-01
Filing date: 2015-05-01
Publication date: 2016-11-10

Abstract

The present invention relates to a device for blocking a hollow of a precast concrete (PHC) pile. More specifically, the present invention installs and fixates connection reinforcement bars and blocks the head part of the concrete pile. The device for blocking a hollow of a PHC pile comprises: a hollow blocking plate inserted into a head part of a concrete pile of which front end is cut through a one-cutting construction method; a plurality of connection reinforcement bars of which bottom is inserted into the hollow blocking plate; a reinforcement bar combination unit combining the reinforcement bars; and a movement prevention bar combined with the reinforcement bar combination unit, and held and locked at the front end of the pile. Therefore, present invention is capable of obtaining excellent combination force to be integrated with base concrete by using only a pair of connection reinforcement bars, reducing costs for materials and reducing the usage of steel materials by using only optimal connection reinforcement bars, significantly reducing transportation costs through a knock-down method and improving work efficiency by quickly and effectively performing the assembly of the reinforcement bars in the construction site without processing in a factory, enabling the construction of a high quality bottom base structure fixated in the head part of the concrete pile with substantial fixing force to be excellently combined with the base concrete and the concrete pile, and providing an economic effect by simplifying the installation of the reinforcement bars and blocking a hollow using minimal components.

Description

{Device for Blocking Hollow of Precast Concrete Pile}

[0001] The present invention relates to a dental adhesive device such as a high strength concrete pile (PHC pile), and more particularly, to a dental adhesive device for inserting a dental adhesive sheet into the inside of a head of a concrete pile cut by a One Cutting method, A pair of connecting reinforcing bars having a lower end inserted into the curtain plate are connected by a reinforcing bar binding member and a restraining bar that is fitted to the leading end of the reinforcing bar is coupled to the reinforcing bar binding member, The blocking of the hollow part and the fixing of the connecting reinforcing bar are fast and efficient, and the knock-down method can be adopted.

Generally, when constructing a building structure on the ground, after installing a concrete type pile, the load of the ground structure is transferred to the support layer through the concrete pile. The concrete pile is composed of a concrete main wall portion formed by a cylindrical cross section having a hollow portion and a steel wire embedded in the concrete main wall portion.

Also, after installing the concrete pile type, the concrete main wall part of the upper part of the concrete pile (about 30 cm) is removed to expose 30 cm of the steel wire embedded in the concrete main wall part, The upper part of the hollow part of the pile (about 15cm) is filled with concrete (C class concrete) to cover the top of the concrete pile, and then the foundation steel is laid by placing the foundation steel.

The process of removing the concrete main wall portion to expose a part of the upper end of the steel wire embedded in the concrete main wall portion of the conventional concrete pile includes a step of drilling a plurality of holes in the upper end portion of the concrete pile, a step of cutting the upper portion of the hole, Cutting the upper portion of the cut portion with a crusher to expose the steel wire, and finishing with a hammer.

In the process of filling the concrete at the upper part of the hollow portion of the concrete pile, the membrane inserts the support plate of the cap at a predetermined depth from the upper end of the hollow portion of the concrete pile, supports the support plate with a plurality of fixed wires, And then filling the hollow portion of the upper part of the support plate with the blocking concrete.

After that, the foundation foundation reinforcement is installed and then the foundation foundation concrete is laid.

In this case, since the upper hollow part of the concrete pile is blocked by the clogged concrete, the live concrete flows into the hollow part in the process of pouring the foundation floor concrete, thereby preventing the depression from occurring in the hollow part.

However, in this conventional technique, in order to expose the steel wire, care must be taken not to damage the upper end of the steel wire and the concrete pile. In addition, since the work is performed at various stages using various equipment and tools, And the upper end of the concrete pile is damaged by the impact in the course of the work, and vertical cracks are generated, so that the bearing capacity of the concrete pile is lowered, thereby losing durability.

In addition, when the steel wire is damaged, the concrete pile and the foundation floor concrete do not work together, which causes a serious problem in the resistance due to the horizontal load.

Also, when the cap is installed, since the lower end of the fixed wire is connected to the edge of the support plate and the upper end of the fixed wire is hooked on the steel wire to support the support member, the installation work is troublesome and the support plate is not installed at the correct position, There is a problem that the concrete filling operation is difficult and the concrete is wasted because the blocking concrete flows down through the gap between the outer circumferential portions.

Meanwhile, in order to solve the problems associated with the membrane cap in the above-mentioned conventional problems, a hollow membrane membrane for a concrete pile such as the registered utility model 20-0186133 has been proposed.

However, in order to solve the above problem, it is necessary to cut the head of the concrete pile including the steel wire of the pile and replace the steel wire of the concrete pile As a result of adopting a construction method for inserting reinforcing bars, conventionally, there has been proposed a structure in which a cap for blocking a hollow portion of a concrete pile, a first support plate placed on a top of a concrete pile at a distance from the cap, A second support plate positioned between the first support plates, and a reinforcing bar supported by the cap and the first and second support plates.

However, concrete piles are usually formed by injecting concrete through a steel mesh network into a mold, filling the concrete by centrifugal force by rotating the mold, and forming concrete with a constant wall thickness and hollow portion, Of the concrete pile is settled and coagulated in the concrete pile so that the circular shape can not be maintained. Therefore, there is a problem that the operation of inserting the cap and the second support plate into the hollow portion of the concrete pile is inevitable.

In addition, since the cap is made to be deformed by tearing the edge by using the steel plate, the concrete paste leaks and the latence is not deformed freely according to the shape of the precipitated and coagulated hollow portion, resulting in distortion, have.

In addition, since the reinforcing bars are welded to the cap and the first and second supporting plates, the strength of the reinforcing bars is drastically lowered due to the welding heat, and the reinforcing bars are melted and damaged.

Also, since the first support plate is simply mounted on the upper surface of the concrete pile, voids are generated between the upper end surface of the concrete pile and the first support plate, and the concrete is not completely filled in the pile, .

Besides, since the steel plate is used, the work efficiency is lowered due to the increase of the weight of the steel plate, and the manufacturing cost is increased.

Meanwhile, the inventor (applicant) has developed and applied an adhesive plug device of Patent Application No. 10-2005-0110608 in order to solve all the problems described above.

Since the support structure of the present invention is such that the support plate is supported on the supporting frame constituting the connecting reinforcing bar supporting means through the connecting reinforcing bar, the load of the connecting reinforcing bar and the blocking concrete is completely applied to the supporting plate, The concrete is not properly installed and the reinforcing bar is not installed correctly.

In addition, since the supporting state of the connecting reinforcing bars becomes unstable, a separate blocking concrete pouring process is required in order to secure the reinforcing bars. Since the operator must manually fill in each hollow portion of each concrete pile, the work is very troublesome and requires separate air.

In addition, since a separate wedge must be inserted in the process of supporting the connecting reinforcing bars to the supporting plate and the supporting frame, there is a problem that the assembling of the retaining device is troublesome, the working efficiency is lowered and the inadequate construction is carried out. There is a problem that the manufacturing cost is increased.

In order to solve the above-mentioned problems, the inventor of the present invention (Applicant) has developed and applied an adhesive blocking device of Patent Application No. 10-2005-130383.

Since the spacer of the present invention has a structure in which the spacer supporting the connection reinforcing bars is simply placed on the barrier plate supporting wire which is wound on the upper end of the concrete pile, the spacers are moved arbitrarily in the assembling process, Is not maintained in the correct position and the blocking plate supporting wire is scattered, so that installation work for the inside of the concrete pile is difficult, resulting in poor construction and deterioration of the construction quality. Further, there is a problem that the blocking plate is joined to the lower end of the blocking plate supporting wire There is a problem that the hands are slipped during the process and the work is delayed.

Accordingly, the applicant of the present invention has proposed a method of manufacturing a concrete pile as shown in Japanese Patent Application No. 10-0795437, which comprises a blocking plate installed at a certain depth on the upper end of a hollow portion of a concrete pile; A plurality of blocking plate supporting wires connected to the edge of the blocking plate, an elastic hook formed at the lower end of the blocking plate supporting wire, a hooking ring formed on the upper end of the blocking plate supporting wire to extend over the upper end of the concrete pile, A barrier plate supporting means formed on the barrier plate and having a plurality of connection bosses to which the elastic hooks are connected; A plurality of connecting reinforcing bars each of which is inserted into the hollow portion to protrude from the upper end of the hollow portion and whose lower end is fixed to the blocking plate; A connecting reinforcing bar lower end supporting means for supporting a lower end of the connecting reinforcing bar; A spacer having an annular spacer body inserted into an upper end portion of the hollow portion of the concrete pile and a connecting reinforcing bar stop supporting portion formed at an inner peripheral portion of the spacer body to support a middle portion of the connecting reinforcing bar; And a spacer supporting means for supporting the spacer, wherein the spacer supporting means comprises a rod-like spacer supporting piece extending from the lower end of the connecting ring of the connecting reinforcing bar supporting wire toward the center of the concrete pile, And an engaging portion protruding from an outer peripheral portion of the spacer and having a coupling groove of a C-shaped cross section into which the spacer supporting piece is inserted.

However, since the conventional method of reinforcing the head of the concrete pile and the structure of the head reinforcement by the line registration of the present invention and the head reinforcing structure of the present invention all involve a plurality of connecting reinforcing bars, a lot of processes and long working time are required , A barrier plate supporting means made of a complicated structure together with a lead frame plate, and a connecting reinforcing bar fixing means are used together, which is extremely uneconomical and inefficient.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described above, and it is an object of the present invention to provide a reinforced concrete pipe having a reinforced concrete structure in which a reinforced concrete pipe is cut into two pieces, The reinforcing bars for binding the reinforcing bar and the reinforcing bars for restricting the head of the pile and the reinforcing bars for fixing the reinforcing bars are used for blocking the head of the concrete pile and fixing the reinforcing bars,

It is possible to easily fix the optimum connecting steel reinforced with two diameters, as well as the fast and efficient fixing of the reinforced concrete of the concrete pile, and the adoption of the knockdown method. It is an object of the present invention to provide a device of a concrete pile to which a cutting method is applied.

According to an aspect of the present invention, there is provided a concrete pile cut by circular cutting, wherein a guide plate is inserted into a head portion of a concrete pile and a lower end of two connecting reinforcing bars is inserted into a center portion of the guide plate, The reinforcing bar binding sphere is connected to the intermediate portion of the concrete pile and the reinforcing bar binding sphere is connected to the flow preventing bar restrained at the front end of the concrete pile, A fixed installation is made for the connecting reinforcing bar located at the center of the tip.

The present invention can achieve excellent bonding force with a foundation floor concrete even with a pair of connecting reinforcing bars having a reinforced diameter, and it is possible to reduce the amount of steel material used and material cost by using only the optimum connecting reinforcing bar. The assembly can be done quickly and effectively not in the factory but also in the construction site. It is possible to reduce the transportation cost by adopting the knockdown system as well as improving the working efficiency. The connecting reinforcing bars are firmly fixed in the head of the concrete pile Accordingly, it is possible to construct a high-quality lower foundation structure in which the concrete file and the foundation floor concrete are integrated, and it is possible to simplify the installation of the barrier and the reinforcing bar through the minimum parts.

Fig. 1 is a diagram showing the entire structure of a device according to the present invention,
Figure 2 is an overall cross-sectional view of a device according to the present invention,
Fig. 3 is a perspective view of the main part of the device of the present invention,
Fig. 4 is a perspective view of a reinforcing bar in the device of the present invention,
Fig. 5 is a graph showing the relationship between the reinforcing filler sphere plane
Fig. 6 is a graph showing the relationship between the reinforcing ligand sphere action
FIG. 7 is a graph showing the state of use of the reinforcing bar binding member in the dental treatment apparatus according to the present invention
Fig. 8 is a plan view showing the whole of the embodiment of the present invention,
Fig. 9 is a view showing another example of the reinforcing bar binding member in the dental treatment apparatus according to the present invention

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

FIG. 2 is a sectional view showing the main part of the device according to the present invention, and FIG. 3 is a perspective view showing the main part of the device according to the present invention.

As shown in the drawing, the device of the present invention is a device for cutting the ends of concrete piles in a circular cutting manner in a state where a leveling operation is carried out in order to sort out the heads of concrete files inserted in the ground, And a reinforcing bar fixing operation for connection to the foundation floor concrete.

Accordingly, in the present invention, the adhesive tape 110 is inserted up to a certain depth into the front end of the cut concrete pile 100, and the pair of connecting bars 120 (120 'Are inserted into the plate 110, the plate 110 is inserted. At this time, the tab 110 and the connecting reinforcing bars 120 and 120 'may be coupled to each other through separate fixing means, and the connecting reinforcement 120 and 120' It may be inserted and fixed in the form of an insert.

Thus, as the plate 110 is inserted into the inside of the tip of the concrete pile 100, it is possible to block the hollow portion of the concrete pile.

The pair of connecting bars 120 and 120 'are coupled to each other in a tightly adhered state by a separately provided reinforcing bar binding member 10. The reinforcing bar binding bar 10 has a separate anti- The reinforcing bars 120 and 120 'are fixed to the reinforcement bars 10 as well as the reinforcing bars 120 and 120' by the flow preventive bar 20, 'Will produce a firm fixation from the head of the concrete pile 100.

4 and 5, the reinforcing bar coupling 10 includes a reinforcing bar insertion hole 11 in which a pair of connecting reinforcing bars 120 and 120 'can be positioned inside by injection molding, The reinforcing bar binding tool 10 is cut from the reinforcing bar insertion holes 11 and 11 'so as to form an engaging groove 12 at one side of the cut end, The reinforcing bar insertion holes 11 and 11 'can be opened and closed by the locking groove 12 and the locking groove 13 as the locking groove 13 is formed.

In addition, a fitting groove 14 having a downwardly opened shape is formed at a lower end of one side of the reinforcing bar binding tool 10.

6, the locking jaws 13 are separated from the locking grooves 12 to allow the reinforcing bars 11 and 11 'to be opened, and then the connecting reinforcing bars 120 and 120' The engaging jaws 13 are engaged with the engaging grooves 12 by applying an artificial force in a state of being inserted into the reinforcing bars 11 and 11 ' (120) and (120 ') can be constrained in the reinforcing bar insertion holes (11) and (11') in a state in which they are in close contact with each other and fixed.

The flow restraining bar 20 for preventing the flow of the reinforcing bars 10 and the connecting bars 120 and 120 'is formed by bending a reinforcing bar or a steel bar, Both ends 21 and 21 'bent downward at both ends are formed and the inner bent portions 22 and 22' are formed at the inner sides of the both end portions 21 and 21 ' The inner side portions of the both cut-away curved portions 21 and 21 'are brought into close contact with the outer surface of the concrete pile 100 and the outer side portions of the inner side bent portions 22 and 22' are brought into close contact with the inner surface of the concrete pile 100, The middle portion of the flow preventive band 20 is inserted into the fitting groove 14 of the reinforcing bar binding member 10 so that the reinforcing bar binding member 10 and the flow preventive band 20 and the connecting reinforcing bars 120 and 120 ' It is possible to maintain a firm fixed state.

At this time, the reinforcing bar binding tool 10 repeatedly forms vertical irregularities 15 and 15 'on the entire inner surface of the reinforcing bar insertion holes 11 and 11', thereby forming the connecting reinforcing bar 120 using the deformed reinforcing bar, The reinforcing bars 16 and 16 'vertically penetrating the reinforcing bars 10 are formed at both sides of the reinforcing bar insertion holes 11 and 11' 7) in the process of strongly pressing the connecting reinforcing bars 120 and 120 'located in the reinforcing bar insertion holes 11 and 11' through the concave and convex portions 15 and 15 ' The concave and convex portions 15 and 15 'are elastically deformed outwardly in the range of the expansion and contraction holes 16 and 16' so that the tight fitting force of the connection reinforcing members 120 and 120 ' It can be configured.

The pair of connecting bars 120 and 120 'are connected to each other by the reinforcing bars 120 and 120' in a state where the bottom plate of the connecting reinforcing bars 120 and 120 'is inserted into the inside of the head of the concrete pile 100, The intermediate portion of the flow restraining bar 20 is inserted into the fitting groove of the reinforcing bar binding groove 10 in a state where the flow preventing bar 20 is fitted to the front end of the concrete pile 100, 14, the connection reinforcing bars 120 and 120 'are fastened and fixed to each other.

At this time, the connection reinforcing bars 120 and 120 'are located at the central portion of the concrete pile 100 because the lower end of the connection reinforcing bars 120 and 120' is inserted into the central portion of the plate 110, The flow restraining band 20 inserted into the one fitting groove 14 of the reinforcing bar binding member 10 fixing the reinforcing bar 10 is positioned in one side from the center line of the concrete pile 100, (20) is biased in parallel from the center of the concrete pile (100) to one side of the concrete pile (100), the flow preventive band (20) can be firmly connected to the concrete pile (100).

In other words, both of the curved portions 21 and 21 'of the flow preventive band 20 are in close contact with the outer surface of the head of the concrete pile in a state of being biased from the center line of the concrete pile 100, Since the inner bent portions 22 and 22 'of the reinforcing bars 120 and 120' are also in close contact with the inner surface of the head of the concrete pile in a state of being biased from the center line of the concrete pile 100, A restraint state that can not flow to the valve seat is achieved.

More specifically, as shown in FIG. 8, when a force to move leftward is applied, the two disconnecting curved portions 21 and 21 ', which are in close contact with the outer surface of the head, are spaced at a narrower interval than the outer diameter of the concrete pile 100 When the force to flow to the right is applied, the inner bending portions 22 and 22 ', which are in close contact with the inner surface of the head, cause a reduction interference with the inner surface of the concrete pile 100 The flow to the right side will be suppressed.

The flow in the left and right directions in the drawing relative to the reinforcing bar binding tool 10 is transmitted to both sides of the curved portions 21 and 21 'and the inner bent portions 22 'Is suppressed by the interference with the outer surface and the inner surface of the concrete pile 100. In the figure, the restraining force in the plan view and the downward direction is a force that the reinforcing bars 10 and the anti- . &Lt; / RTI >

Accordingly, the flow restraint 20 is prevented from flowing in the left, right, up and down directions while being coupled to the head end of the concrete pile 100, The connection reinforcing bars 120 and 120 'constrained by the reinforcing bar binding member 10 and the reinforcing bar binding member 10 can also be formed to have a rigid fixing state that can not flow at all in the inner central portion of the concrete pile 100 do.

Particularly, in order to increase the fixing force between the reinforcing bar binding member 10 and the flow preventive band 20, a plurality of screw holes 17 and 17 'are formed in the side of the reinforcing bar binding member 10 as shown in FIG. The screw holes 17 and 17 'penetrate through the fitting grooves 14 so that the screw holes 17 and 17' are formed in a state where the reinforcing bar coupling 10 and the flow- The fixing bolts are inserted through the screw holes 17 and 17 'so as to press the side of the inner side flow prevention member 20 or the lower side of the flow prevention member 20 The fastening force of the reinforcing bars 10 and the flow restraining bar 20 can be further improved.

Accordingly, the device of the present invention includes a pair of connecting bars 120 and 120 'having a diaphragm 110 having various structures and a diameter of a larger diameter, a reinforcing bar 10, The connection reinforcing bars 120 and 120 'can be firmly and quickly fixed using only the bar 20, so that the head blocking operation and the connection reinforcing bar fixing installation work of the concrete pile can be performed quickly and efficiently.

If necessary, the connection reinforcing bars 120 and 120 'may be joined again by using a wire or a bundle or the like separately provided on the upper side of the reinforcing bar binding member 10, Even if the diameters of the connecting reinforcing bars 120 and 120 'are varied according to the conditions of the room, the locking grooves 12 and the locking hooks 13 The connection reinforcing bars 120 and 120 'may have different diameters depending on the interlocking positions of the reinforcing bars 120 and 120'.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the present invention as defined by the appended claims. Examples should be understood.

10: Reinforcing bar 11, 11 ': Reinforcing bar
12: locking groove 13: locking jaw
14: fitting groove 15, 15 ': concave /
16,16 ': Newly stretched ball 17,17'
20: anti-flow bars 21 and 21 ': both cut-
22, 22 ': Inner bend
100: Concrete file
110:
120,120 ': connection reinforcing bar

Claims

The guide 110 is inserted into the inside of the head of the concrete pile 100 cut by the original cutting and the lower ends of the plurality of connecting reinforcing bars 120 and 120 'are inserted into the center of the guide 110, ,
A reinforcing bar binding member 10 provided at the middle portion of the connecting reinforcing bars 120 and 120 'is coupled to the reinforcing bar binding bar 10, The reinforcing bar binding member 10 and the flow preventive band 20 are fixedly connected to the connecting reinforcing bars 120 and 120 'located at the center of the front end of the concrete pile 100, The method according to any one of claims 1 to 3,

The method according to claim 1,
The reinforcing bar binding tool 10 is provided with vertical reinforcing bars 11 and 11 'and the reinforcing bars 11 and 11' are formed by cutting one side of the reinforcing bar insertion holes 11 and 11 ' Wherein the reinforcing bars are formed to be opened and closed by the locking groove formed and the corresponding locking jaws and the downwardly opening fitting groove is formed at one side of the reinforcing bar binding groove. Of the device.

3. The method of claim 2,
Wherein the reinforcing bars (11) and (11 ') are formed on the inner surface of the reinforcing bars with irregularities (15) and (15') repeatedly formed on the inner surface thereof.

3. The method of claim 2,
Wherein the reinforcement holes 16 and 16 'are formed on the sides of the reinforcing bar insertion holes 11 and 11'.

3. The method of claim 2,
Wherein the screw holes 17 and 17 'are formed in the side surface of the reinforcing bar 10 so that the screw holes 17 and 17' are penetrated toward the fitting groove 14. [ Adhesive device of applied concrete pile.

The method according to claim 1,
The flow restraining member 20 includes both the curved portions 21 and 21 'which are brought into close contact with the outer surface of the concrete pile 100 and the inner bent portions 22 and 22' which are brought into close contact with the inner surface of the concrete pile 100, The method of manufacturing a concrete pile of a concrete pile according to claim 1,

The method according to claim 6,
The flow restraining member 20 is configured to be coupled to the front end of the concrete pile 100 in a state of being biased to one side from the center line of the concrete pile 100. The both ends of the curling portion 21 and the inner bent portion 22 ' (22 ') is held in close contact with the outer and inner surfaces of the head of the concrete pile (100) at the same time.