KR20160000313U - head reinforce equipment of a steel pile - Google Patents

Abstract

The present invention relates to a reinforcing bar fixing device for a steel pipe pile.
The present invention relates to a steel pipe pile having a hollow section 120 having a circular cross section inside a body 100 and having a front end portion 130 for penetration and a head portion 140 at one side of the body 100, And is formed in a circular shape so as to be inserted into the hollow portion 120 and is formed in a horizontal state in a downward position from the upper end of the head portion 140 to support a concrete filler material 240 filled in the hollow portion of the cut head portion 140 (200); A plurality of position fixing hooks 300 for fixing the fastening plate 200 at the upper end by forming the folding end 320 and engaging the upper end of the head 140 and fixing the fastening plate 200 at the lower end through the fixing end 340; A reinforcing bar fixing part 400 formed on an upper surface of the flat filling plate 200 and fixing the lower end of the reinforcing bar 420 integrated with the concrete inserted into the inside of the toasting part 140; (520) is formed at one end to be fixed to the upper end of the head portion (140), and the reinforcing bar (420) is horizontally formed on the upper side of the hollow portion (120) And a plurality of engaging slices 500 in which a horizontal surface 540 through which the guide holes 542 are formed is formed.
The present invention has the advantage that the reinforcing bars installed on the hollow portion of the toe are easily fixed by the operator and the structure is easily assembled.

Description

Technical Field [0001] The present invention relates to a head reinforcement apparatus for a steel pile,

The present invention relates to a steel pipe pile having a toe for connecting the front end and a structure for underground filling, more specifically, a reinforcing steel which is coupled to the tofu when the structure to be based on the tofu is connected, The present invention relates to a head reinforcement device for reinforcing a vertical force, a shearing force, and a bending moment through a reinforcing bar.

Generally, a steel pipe pile or steel pile refers to a pipe-shaped pile manufactured by forcing, and is connected to a base structure that is exposed to the ground by being penetrated into the ground, It is made up of tofu as a foundation.

Also, in the case of a steel pipe pile foundation, a steel pipe pile is penetrated into the ground so that the front end of the steel pipe pile is supported, and then a reinforcing steel structure is installed on the head of the steel pipe pile. Then, concrete is poured around the reinforcing steel structure And a foundation structure in which a steel pipe pile and a concrete structure are integrally formed.

In order to connect the foundation structure to the steel pipe pile, the tofu is reinforced to absorb the normal force, shear force, and bending moment. In the case of reinforcing the head of the existing steel pipe pile, a cover plate is placed on the top of the steel pipe, There is a cover type which welds the reinforcing bars, and an in-fill type in which a plurality of reinforcing bars are fixed to the hollow portion formed in the head of the steel pipe pile, and concrete is poured and filled.

The lid type is a method of welding the vertical reinforcing steel to the cover plate, and the inner filling method is an inner filling method in which concrete is filled in the tofu of a steel pipe pile.

In the case of the above-mentioned in-fill method, the conventional in-situ steel pipe pile head stiffener is formed by forming a hanging jaw or bolt on a hollow portion of a steel pipe pile, There is a problem that there is a great inconvenience in terms of construction since a separate latching jaw should be formed.

In order to prevent vertical and horizontal displacements, it is necessary to increase the resistance to vertical axial force and shear force concentrated on the head of the steel pipe pile by strengthening the steel pipe pile penetrating into the ground during the foundation work of the structure, It is required to develop a technique to reinforce

In other words, there is a need to develop a steel pipe pile head reinforcement device capable of improving the bonding force between the steel pipe pile and the vertical reinforcing steel and concrete, and improving the workability by simplifying the assembly.

The reinforcing structure of the head pipe of a recently constructed steel pipe pile is characterized in that it is provided at the upper end of the head cut horizontally in the process of embedding the steel pipe pile and has a ring shaped coupling hole corresponding to the sectional shape of the head, A reinforcing plate inserted into the inner hollow portion of the head portion and a plurality of reinforcing bars connected to the reinforcing bar by being embedded in the foundation of the structure fastened at a predetermined interval around the fitting hole.

In the head reinforcing structure of the conventional steel pipe pile, the reinforcing plate is welded to the inner circumferential surface of the head portion at the time of installation, the fitting hole is welded along the periphery of the upper edge of the toe, and the reinforcing steel is welded around the fitting hole, As shown in FIG. The reinforcing bars exposed to the outside may be bound to the reinforcing bar, and the filled concrete may be placed in the hollow portion of the toe.

However, in the case of the above-mentioned head reinforcement structure, the worker has to work harder in welding the head to reinforce the head, and when the reinforcing bars are arranged, the reinforcing bars of the neighboring steel pipe piles are not constant in position There has been a problem of difficulty in connecting the structures.

In addition, the head of the steel pipe pile with the structure foundation on the upper head in the state of being installed on the ground receives the stress of the horizontal force and the bending moment applied on the foundation of the structure. In order to firmly support the foundation of the structure, A strong reinforcement structure is additionally required.

A conventional method for reinforcing a braided hair using a steel material is disclosed in Korean Patent No. 10-1346686.

A plurality of hair reinforcing parts coupled to the steel pipe; a blocking plate for closing the upper end of the steel pipe at a predetermined depth, the catching plate being positioned at a predetermined depth inside the upper end of the steel pipe; And the other end of each of the plurality of hair reinforcing parts includes a plurality of supporting legs coupled to the blocking plate, wherein each of the plurality of hair reinforcing parts includes a locking jaw which is seated on the upper end of the steel pipe, Wherein the first brace of the first hair reinforcing part, which is at least a part of the plurality of hair reinforcing parts, is located at a position corresponding to the outer hole of the steel pipe, And the first hair reinforcing portion may be coupled to the steel pipe by a bolt passing through the fastening hole and the outer hole of the steel pipe It is a lock.

When the end of the reinforcing bar installed to be assembled with the foundation structure is positioned on the upper side of the concrete filler, the reinforcing bar assembly structure and the concrete filling material of the toe are assembled in a state where they are spaced apart from each other, There has been a problem that this is weakened.

In addition, various types of structures have been applied to the head reinforcement structure of the steel pipe pile, but most of the workers have difficulty in assembling and the foundation structure after the installation is not stably connected to the head.

It is to be understood that the technical objectives to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems which are not mentioned are apparent from the following description to those skilled in the art It can be understood.

[Patent Document 1] Korean Patent Registration No. 10-1346686 Published on March 31, 2013 [Patent Document 2] Korean Patent Registration No. 10-1007006 Published Date 2010. 03. 10 [Patent Document 3] Korean Utility Registration No. 20-0455415 Disclosure Date Apr. 21, 2010 [Document 4] Korea Practical Registration No. 20-0378210 Registration date 2005. 03. 02 [Literature 5] Korean Patent Registration No. 10-0507291 Published on November 30, 2002 [Literature 6] Korean Patent Registration No. 10-0666596 Disclosure Date 2006. 06. 07 [Patent Literature 7] Korean Patent Registration No. 10-0996724 Date Added Nov. 19, 2010

The present invention has been made to solve the above problems,

The purpose of this invention,

first; Reinforcing bars located at the head of the steel pipe pile are extended with the filling material filled in the hollow part of the tofu so that the tofu can be reinforced.

second; The reinforcing bars installed on the hollow part of the head are easily fixed by the operator and the structure is easily assembled.

In order to achieve the above object,

A steel pipe pile having a circular hollow section with an inner hollow body and a tip portion for penetration and a tofu portion at one side of the body,

An inner filling plate which is circularly inserted to be inserted into the hollow portion and is horizontally positioned at a downward position from the top of the toe to support a concrete filler to be filled in the hollow portion of the cut toe; A plurality of position fixing rings for fixing the fastening plate at the upper end to the upper end of the head by forming a bent end, and a lower end for fastening the fastening plate; A reinforcing bar fixing part formed on an upper surface of the fastening plate and fixing the lower end of a reinforcing bar integrally formed with the concrete inserted into the inside of the toe part; A plurality of guide holes are formed in the upper end of the hollow portion so as to be engaged and fixed at the upper end of the head portion, ≪ / RTI >

The reinforcing steel fixing part may be formed as a position fixing groove formed by press forming by punching striking up and down from the upper surface of the fastening plate and having an inclined surface whose inner diameter is gradually reduced so that the lower end of the reinforcing steel is slidably guided.

The reinforcing bar fixing part may be formed as a plurality of fixing bars provided on the upper surface of the fastening plate and forming an inclined guide hole so that the lower end of the reinforcing bar is fixed at the center.

The present invention is advantageous in that the reinforcing bar located at the head of the steel pipe pile is extended with the filler filled in the hollow portion of the head to facilitate the assembly with the base structure as well as the head reinforcement.

In addition, when the rebar is installed, the rebar is installed in the hollow section of the head to automatically set the position through the rebar fixing part. Therefore, it is easy to install the rebar.

1 is a perspective view of a head reinforcement apparatus of a steel pipe pile according to the present invention,
FIG. 2 is an exploded perspective view of FIG. 1,
3 is a longitudinal sectional view of the coupling state of Figs. 1 and 2,
Fig. 4 is an exploded perspective view of the position fixing ring in Figs. 1 to 3,
FIG. 5A is a perspective view illustrating a process of engaging the engaging pieces in FIGS. 1 to 3. FIG.
FIG. 5B is a perspective view of a process in which other engaging pieces are engaged in FIGS. 1 to 3. FIG.
6 is an assembling flowchart of the head reinforcement apparatus of a steel pipe pile according to the present invention,
7 shows another embodiment of the rebar fixing part according to the present invention,
8 shows another embodiment of the rebar retainer as another example according to Fig. 6,
Fig. 9 is another embodiment of the rebar fixing portion according to another example according to Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which: FIG. do.

The present invention is intended to reinforce the head 140 in a steel pipe pile supported by a foundation 130 and a structure for foundation on the head 140, and at the same time to stably connect the foundation structure.

1 to 5, the steel pipe pile has a circular hollow section 120 inside the body 100, and a tip portion 130 for penetration is formed at one side of the body 100, A head portion 140 for supporting the structure is formed.

The present invention relates to a pile of a steel pipe pile having a body 100 having a hollow portion 120 formed therein and an inner filler plate 140 disposed inside the upper head portion 140 of the hollow portion 120 of the body 100 A plurality of reinforcing bars 420 which are erected from the fastening plate 200 and a plurality of reinforcing bars 420 which are formed on the reinforcing bars 420, A reinforcing steel fixing part 400 for fixing the reinforcing reinforcing bars 420 such that the ends of the reinforcing reinforcing bars 420 are extended from the head 140 to the fastening plate 200, (500, 500a) to be positioned at equal intervals by a pair of legs (500, 500).

The body 100 is made of a metal material and has a circular cross section, and a hollow portion 120 is formed therein.

The inner filling plate 200 is made of a metal or a synthetic resin and has an outer shape of a thin plate thickness and an outer diameter at least smaller than the inner diameter of the hollow portion 120. A position of the fixed portion 240 in a downward position from the top of the head portion to support a concrete filler 240 which is circularly formed to be inserted into the hollow portion 120 and filled in the hollow portion 120 of the cut head portion 140, And is horizontally positioned through the hook ring 300.

The position fixing ring 300 is formed in a wire shape and has a bent upper end and a bent end 320. The lower end of the position fixing ring 300 has a fixed end 340 to fix the fastening plate 200, . That is, the bent end 320 is hooked on the upper end of the head 140, and the lower fixed end 340 fixes the fastening plate 200.

The reinforcing bar 420 is made of a metal material and has a lower end inserted into the head portion 140 and positioned at the upper surface of the lower filling plate 200 of the head portion 120, 400).

That is, the reinforcing steel reinforcing part 400 is formed on the upper surface of the inward filling plate 200, and the lower end of the reinforcing reinforcing bar 420, which is integrated with the concrete filled and inserted into the inside of the toe part 140, .

In addition, the reinforcing bar 420 must be free of oxidized rust as the hot-rolled steel sheet material, the machined surface must be clean without irregularities, and the burr (rough surface at the time of puncturing) Of course, there should be no warping of the steel sheet due to machining or work.

7, the reinforcing steel fixing part 400 may be embodied as a clamp 430 which surrounds the reinforcing reinforcing bars 420 under the reinforcing reinforcing bars 420 as an example. The clamp 430 is fixed in a manner to wrap around the reinforcing bar 420 so that the end of the reinforcing bar 420 passes through the engaging piece 500 and comes into contact with the upper surface of the fastening plate 200, So that the reinforcing bars 420 are integrally formed with the concrete.

8 shows another example of the reinforcing steel fixing part 400a, which is press-formed by punching striking up and down on the upper surface of the fastening plate 200 so that the lower end of the reinforcing steel rod 420 is slidably guided, And a position fixing groove 480 in which a sloped surface 482 is formed to be reduced.

9 shows another example of the reinforcing steel fixing part 400b. The reinforcing steel fixing part 400b is provided on the upper surface of the fastening plate 200 and has an inclined guide hole 492 formed at the center thereof to fix the lower end of the reinforcing steel bar 420 The plurality of fasteners 490 can be realized.

The engaging section 500 has a retaining end 520 formed at one end thereof to be engaged with an upper end of the head 140 and has a hollow portion 120 formed at the other end thereof. And a horizontal surface 540 is formed on the upper surface of the guide hole 542 so that the reinforcing steel bar 420 is passed through the guide hole 542.

At least four engaging pieces 500 may be installed at the upper end of the head 140 and four engaging pieces 500 coupled to the head 140 in the "+" Is preferably fixed by fastening the nut 620 of the bolt 600 coupled to the head 140. When eight bolts 600 are installed, another interlocking piece 500a may be interposed between the engaging pieces 500, .

That is, a guide hole 552 is formed in the vertical surface 550 of the four engaging pieces 500, and a threaded portion of the bolt 600 coupled to the head 140 passes through the guide hole 552 When the nut 620 is fixed, the vertical surface 550 can be closely fixed to the head 140.

The other four engaging pieces 500a are formed with a support end 560 bent inward at the lower end of the vertical surface 550 which carries the outer surface of the body 100 at the engagement end 520, When the engaging end 520 of the engaging piece 500a is engaged with the upper end of the head 140, an elastic force is generated and fixed to the head 140. [

This is because the reinforcement bars 420 can be installed at equal intervals in the hollow portion of the head 140 and a reference point can be achieved when assembling the rebar with the base structure.

The installation and operation of the head reinforcement device of the steel pipe pile according to the present invention will now be described.

During installation,

The tip portion 130 forming the lower side of the body 100 of the steel pipe pile is buried after the tearing operation and then the tip portion 130 of the steel pipe pile is supported on the ground or the like. Then, the head 140 is cut through an automatic cutter or the like. At this time, the toe 140 at the position of about 200 mm from the position of the lower end surface where the surrounding concrete of the steel pipe pile is to be installed is cut, and the abandoned concrete is installed at about 100 mm.

4, the fastening plate 300 is fastened to the fastening plate 200, and then the fastening plate 200 is fastened to the head portion of the steel pipe pile (as shown in FIGS. 2 and 6) 140 may be inserted into the hollow portion 140 and then the upper bent end 320 of the position fixing ring 300 may be hooked on the upper end of the head 140. At this time, the position fixing ring 300 is moved to set the position where the reinforcing bar 420 is to be raised.

Then, as shown in FIGS. 1 and 5, the engaging piece 500 is hooked on the upper edge of the head 140, and then the reinforcing bars 200 are formed on the fastening plate 200 as shown in FIGS. 7 and 8, The center of the fixing part 400 and the center of the guide hole 542 formed in the horizontal surface 540 of the engagement piece 500 are aligned with each other and then the guide hole 500 formed in the horizontal surface 540 of the engagement piece 500 The lower ends of the reinforcing bars 420 are vertically positioned while being fixed by the reinforcing bar fixing portions 400, 400a and 400b.

Subsequently, as shown in FIGS. 7 to 9, a plurality of reinforcing bars 460 are connected to the reinforcing bars 420, and the reinforcing bars 420 are fixed by welding or the like. Then, (420).

Thereafter, a concrete filler material 240 may be installed in the hollow portion 120 of the head 140 of the body 100 forming the steel pipe pile.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. You will understand.

100: Body
120: hollow part 130:
140: Tofu
200: quick fill
240: Concrete filler
300: Position fixing ring
320: Bending stage 340: Fixing stage
400, 400a, 400b:
420: Rebar
500, 500a:
520: latching stage 540: horizontal plane
542: guide hole 550: vertical surface
560: Supporting stage

Claims (5)

Wherein the inside of the body 100 has a circular hollow section 120 having a circular cross section and a front end portion 130 for penetration and a head portion 140 are formed on one side of the body 100,
The upper portion of the head portion 140 is positioned at a lower position from the upper end of the head portion 140 so as to support the concrete filler material 240 which is circularly formed to be inserted into the hollow portion 120 and filled in the hollow portion of the cut head portion 140, (200);
A plurality of position fixing hooks 300 for fixing the fastening plate 200 at the upper end by forming the folding end 320 and engaging the upper end of the head 140 and fixing the fastening plate 200 at the lower end through the fixing end 340;
A reinforcing bar fixing part 400 formed on an upper surface of the flat filling plate 200 and fixing the lower end of the reinforcing bar 420 integrated with the concrete inserted into the inside of the toasting part 140;
(520) is formed at one end to be fixed to the upper end of the head portion (140), and the reinforcing bar (420) is horizontally formed on the upper side of the hollow portion (120) And a plurality of engaging pieces (500) (500a) having a horizontal surface (540) formed by vertically passing through a guide hole (542).
The method according to claim 1,
A vertical surface 550 which is in close contact with the head portion 140 is engaged with the nut 620 of the bolt 600 so that the engaging piece 500 is coupled to the upper portion of the head portion 140 in the " Fixed,
A supporting end 560 is formed at the lower end of the vertical surface 550 which is in close contact with the head 140 so that the engaging piece 500a is positioned between the engaging pieces 500, Wherein the reinforcing bars are elastically bonded to each other.
The method according to claim 1,
The reinforcing steel bar fixing part (400)
A position fixing groove 480 having an inclined surface 482 whose inner diameter is gradually reduced so that the lower end of the reinforcing bar 420 is slide-guided by press-forming by punching striking the upper surface of the flat plate 200, Wherein the reinforcing steel reinforcing member is a steel reinforcing member.
The method according to claim 1,
The reinforcing steel bar fixing part (400)
And a plurality of fasteners (490) provided on the upper surface of the fastening plate (200) and forming an inclined guide hole (492) so that the lower end of the reinforcing bar (420) Reinforcement fixture.
The method according to claim 1,
The reinforcing steel bar fixing part (400)
And a clamp 430 coupled to a lower side of the reinforcing bar 420 to engage the engaging piece 500 when the end of the reinforcing bar 420 approaches the upper surface of the fastening plate 200. [ Reinforcing bars for piles.

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