KR20060061002A - Connecting structure for a pile head reinforcement of a steel pipe - Google Patents

Abstract

The present invention relates to a connection structure for reinforcing steel pipe pile head, and more specifically, by removing the fasteners such as the upper disk and bolts, the cost of self-control is reduced, and the manufacturing process, such as bolt tightening or welding work in the field by reducing It is possible to construct in a short time simply because the process is not necessary, and it is related to the connection structure for reinforcing the steel pipe pile head which can expect the construction of a safe foundation structure by increasing the pullout force due to the solid stiffening effect.

"자형의 보강부(12)를 갖는 복수개의 보강철근(10)과, 상기 보강철근(10)이 각각 끼움/결합되도록 상기 강관(20)의 상부 외주면에 일정 간격으로 형성된 타원형을 갖는 복수개의 철근끼움공(22)과, 상기 보강철근(10)의 외측보강부(14) 바깥쪽에 구비되어 상기 보강철근(10)을 결속하여 지지하는 외부띠철근(30)과, 상기 강관(20)의 내부에 삽입되고 외주연에 근접되게 복수개의 관통공(42)이 형성된 하부원판(40)과, 양측이 굴곡되어 형성되되 일측은 상기 강관(20)의 상단부에 걸리도록 걸림부(52)가 형성되고 타측은 상기 관통공(42)에 끼워지도록 지지부(54)가 형성된 복수개의 보강부재(50)로 구성된 것을 특징으로 한다.The present invention is formed at the end of the "∪" shaped bent portion 16 is fitted / coupled to the upper portion of the steel pipe 20, but bent a plurality of times to the portion coupled to the steel pipe 20 "

"A plurality of reinforcing bars 10 having a reinforcing portion 12 of the shape, and a plurality of reinforcing bars having an elliptical shape formed at regular intervals on the upper circumferential surface of the steel pipe 20 so that the reinforcing bars 10 are fitted / coupled respectively. A fitting hole 22 and an outer band reinforcing bar 30 provided outside the outer reinforcing part 14 of the reinforcing bar 10 to bind and support the reinforcing bar 10 and the inside of the steel pipe 20. The lower disk 40 is inserted into the outer circumference and formed with a plurality of through-holes 42, and both sides are formed to be bent, one side is formed with a catching portion 52 to be caught on the upper end of the steel pipe 20 The other side is characterized by consisting of a plurality of reinforcing members 50, the support portion 54 is formed so as to fit in the through hole 42.

Steel pipe piles, reinforcing bars, inner band bars, fixed bars

Description

CONNECTING STRUCTURE FOR A PILE HEAD REINFORCEMENT OF A STEEL PIPE}

1 is an exploded perspective view of the connection structure for reinforcing steel pipe pile head according to an embodiment of the present invention,

Figure 2 is a side cross-sectional view of the connection structure for reinforcing steel pipe pile head according to an embodiment of the present invention,

3 is an enlarged view showing part A of FIG. 2;

4 is a plan view of the connection structure for reinforcing steel pipe pile head according to an embodiment of the present invention,

5 is an exploded perspective view of a connection structure for reinforcing steel pipe pile heads according to another embodiment of the present invention;

Figure 6 is a side cross-sectional view of a connection structure for reinforcing steel pipe pile head according to another embodiment of the present invention,

7 is a plan view of a connection structure for reinforcing steel pipe pile head according to another embodiment of the present invention;

Figure 8 is a side cross-sectional view of the connection structure for reinforcing steel pipe pile head according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: rebar 12: reinforcement

13: inner reinforcing part 14: outer reinforcing part

16: bend 18: upper band reinforcement

20: steel pipe 22: rebar

30: Outer band reinforcement 32: Inner band reinforcement

40: lower disc 42: through hole

50: reinforcing member 52: locking portion

54: support portion 60: fixed rebar

The present invention relates to a connection structure for reinforcing steel pipe pile head, and more specifically, by removing the fasteners such as the upper disk and bolts, the cost of self-control is reduced, and the manufacturing process, such as bolt tightening or welding work in the field by reducing It is possible to construct in a short time simply because the process is not necessary, and it is related to the connection structure for reinforcing the steel pipe pile head which can expect the construction of a safe foundation structure by increasing the pullout force due to the solid stiffening effect.

In general, the steel pipe pile head reinforcement structure is mainly used to support the external force acting on the head of the steel pipe pile by reinforcing the head of the steel pipe pile to a certain length in the concrete foundation and the insufficient strength by reinforcing steel.

In more detail, the head reinforcing structure of the steel pipe pile is the upper disk provided on the upper portion of the steel pipe so that the reinforcing steel is fixed, the lower disk is inserted into the steel pipe spaced a predetermined distance from the upper disk, the upper disk and the lower disk A plurality of reinforcing members for supporting each other is provided, and the concrete is poured into a predetermined space formed inside the steel pipe.

It is provided with bolts and nuts for fixing the upper disk and the reinforcement reinforcement, reinforcement plate may be provided under the upper disk to reinforce the pressure input.

In addition, the reinforcing bar may be formed in a "∪" shape or "L" shape, or may be used as a single reinforcing bar.

Republic of Korea Utility Model Publication No. 20-0216366 (2000.12.29, the designation: head reinforcing device for steel pipe piles), the upper disc is provided with a plurality of fastening holes for screwing the reinforcing bar, and the gap between the fastening holes It consists of a reinforcing member to be welded, a reinforcing plate formed between the support block and the + -shaped support, and a lower disc welded to the bottom of the support block.

However, the steel pipe pile head reinforcing device is complicated due to the upper disk and the support block and the + -shaped support, the screw connection of the rebar and other welding parts are difficult to install and the work time is long, There is a disadvantage that the burden is increased.

In addition, according to the Republic of Korea Registered Utility Model Publication No. 20-0359072 (2004.08.05, Designated name: steel pipe pile tofu reinforcement device) is combined with the steel pipe sound source plate and the steel pipe sound source plate to support the concrete placed inside the steel pipe Steel pipe internal fixing device consisting of steel pipe locking reinforcement ring for maintaining the distance between the steel reeling reinforcing steel and the steel reeling reinforcing bar, reinforcing bars fixed to the fastening groove formed around the side wall of the steel pipe, and the band reinforcement to maintain the spacing between Consists of.

However, the steel pipe pile head reinforcement device is to form a reinforcement of the steel pipe fastened / fixed to the "∪" shape having a bend, and to reinforce the load by maintaining the interval by connecting each of the reinforcing bars with a band reinforcement It does not reduce the stress on the pressure input, and the fastening groove formed on the side of the steel pipe is formed in a circular shape is not easy to insert when the reinforcing bar is inconvenient, when the reinforcing bar is coupled to the steel pipe Since a space is not formed between the outer wall of the steel pipe and the reinforcing bar, there is a disadvantage in that the load cannot be more effectively distributed.

The present invention has been made to solve the above problems, the object of the present invention is to simplify the construction by reducing the number of parts to simplify the structure can be easily installed in the field, the construction time is shortened and At the same time, it is possible to reduce the overall construction cost due to the reduction of material costs, and to provide a connection structure for reinforcing steel pipe pile tofu, which can expect high efficiency in economic terms.

In addition, another object of the present invention is to use a reinforcing bar having an internal / external reinforcement portion to increase the pressure area to distribute the pressure input, excellent resistance to earthquakes, and to bend the buried part in concrete to the foundation concrete and It is to provide a connection structure for reinforcing steel pipe pile head that can be expected to construct a safe foundation structure by increasing the pull-out force due to the solidity hardening effect by integrally curing.

"자형의 보강부를 갖는 복수개의 보강철근과, 상기 보강철근이 각각 끼움/결합되도록 상기 강관의 상부 외주면에 일정 간격으로 형성된 타원형을 갖는 복수개의 철근끼움공과, 상기 보강철근의 외측보강부 바깥쪽에 구비되어 상기 보강철근을 결속하여 지지하는 외부띠철근과, 상기 강관의 내부에 삽입되고 외주연에 근접되게 복수개의 관통공이 형성된 하부원판과, 양측이 굴곡되어 형성되되 일측은 상기 강관의 상단부에 걸리도록 걸림부가 형성되고 타측은 상기 관통공에 끼워지도록 지지부가 형성된 복수개의 보강부재로 구성된 것을 특징으로 한다.The present invention is a bent portion of the "∪" shape is formed at one end and is fitted / coupled to the upper portion of the steel pipe is bent a plurality of times to the portion coupled to the steel pipe "

"A plurality of reinforcing bars having a reinforcement of the shape, a plurality of reinforcing bars having an elliptical shape formed at regular intervals on the upper outer peripheral surface of the steel pipe so that the reinforcing bars are fitted / coupled respectively, and provided outside the outer reinforcement of the reinforcing bars And outer band reinforcing bars for binding and supporting the reinforcing bars, a lower disc inserted into the steel pipe and having a plurality of through holes formed near the outer periphery, and both sides are formed to be bent, and one side is caught by the upper end of the steel pipe. The engaging portion is formed and the other side is characterized by consisting of a plurality of reinforcing members formed with a support portion to be fitted into the through hole.

Here, it is preferable that the inner band reinforcing bar is further provided on the inner reinforcing part of the reinforcing bar introduced into the steel pipe to bind and support the reinforcing bar.

On the other hand, the connection structure according to another embodiment may be further provided with a + -shaped fixed reinforcing bar having a length equal to the diameter of the steel pipe on the upper portion of the bent portion introduced into the steel pipe.

Hereinafter, with reference to the accompanying drawings will be described in detail the connecting structure for reinforcing the steel pipe pile head.

1 is an exploded perspective view of a connection structure for reinforcing a steel pipe pile head according to an embodiment of the present invention, Figure 2 is a side cross-sectional view of a connection structure for reinforcing steel pipe pile head according to an embodiment of the present invention, 3 is an enlarged view showing a portion A of Figure 2, Figure 4 is a plan view of a connection structure for reinforcing steel pipe pile head according to an embodiment of the present invention, Figure 5 is a steel pipe pile head reinforcement according to another embodiment of the present invention Figure 6 is a separate perspective view of the connection structure for, Figure 6 is a side cross-sectional view of the connection structure for the steel pipe pile head reinforcement according to another embodiment of the present invention, Figure 7 is a steel pipe pile head reinforcement according to another embodiment of the present invention 8 is a plan view of the connection structure, Figure 8 is a side cross-sectional view of the connection structure for reinforcing steel pipe pile head according to another embodiment of the present invention.

"자형의 보강부(12)를 갖는 복수개의 보강철근(10)과, 상기 보강철근(10)이 각각 끼움/결합되도록 상기 강관(20)의 상부 외주면에 일정 간격으로 형성된 타원형을 갖는 복수개의 철근끼움공(22)과, 상기 보강철근(10)의 외측보강부(14) 바깥쪽에 구비되어 상기 보강철근(10)을 결속하여 지지하는 외부띠철근(30)과, 상기 강관(20)의 내부에 삽입되고 외주연에 근접되게 복수개의 관통공(42)이 형성된 하부원판(40)과, 양측이 굴곡되어 형성되되 일측은 상기 강관(20)의 상단부에 걸리도록 걸림부(52)가 형성되고 타측은 상기 관통공(42)에 끼워지도록 지지부(54)가 형성된 복수개의 보강부재(50)로 구성된다.As shown in Figures 1 to 4, the connection structure for reinforcing the steel pipe pile head according to an embodiment of the present invention is formed with a bent portion 16 of the "∪" shape at one end and the upper portion of the steel pipe 20 Being fitted / coupled but bent a plurality of times more to the site coupled to the steel pipe "

"A plurality of reinforcing bars 10 having a reinforcing portion 12 of the shape, and a plurality of reinforcing bars having an elliptical shape formed at regular intervals on the upper circumferential surface of the steel pipe 20 so that the reinforcing bars 10 are fitted / coupled respectively. A fitting hole 22 and an outer band reinforcing bar 30 provided outside the outer reinforcing part 14 of the reinforcing bar 10 to bind and support the reinforcing bar 10 and the inside of the steel pipe 20. The lower disk 40 is inserted into the outer circumference and formed with a plurality of through-holes 42, and both sides are formed to be bent, one side is formed with a catching portion 52 to be caught on the upper end of the steel pipe 20 The other side is composed of a plurality of reinforcing members 50, the support portion 54 is formed to fit in the through hole 42.

"자형이 되도록 보강부(12)를 형성하여 수평부분이 상기 강관(20)의 철근끼움공(22)에 위치되게 끼움/결합하고, 상기 보강부(12)의 굴곡된 부위는 매끄럽게 형성하여 상기 철근끼움공(22)에 용이하게 끼워질 수 있게 한다.The reinforcing bar 10 is manufactured to be formed to form a "∪" shaped bent portion 16 to be fitted into the pair of the reinforcing bars 22, the "∪" shaped portion of the reinforcing bar 10 at a right angle Bend it twice and look at it from the side

"The reinforcement part 12 is formed to be shaped so that the horizontal portion is fitted / combined to be positioned in the rebar fitting hole 22 of the steel pipe 20, and the curved portion of the reinforcement part 12 is smoothly formed to the It can be easily fitted into the reinforcing hole (22).

In this case, it is preferable to prevent the play and large displacement from occurring by allowing the reinforcement part 12 to be embedded to increase the pulling force during concrete pouring.

A plurality of upper band reinforcing bars 18 are provided on the outside of the reinforcing bar 10 to be coupled to each other at a predetermined interval so that the plurality of the reinforcing bar 10 fitted / coupled to the steel pipe 20 are interconnected. Reinforcing bars 10 will be primarily reinforced.

In addition, the outer reinforcing portion 14 of the reinforcing bar 10 is provided with an outer band reinforcing bar 30 to connect the reinforcing bar 10 to each other so as not to generate a gap with the reinforcing bars 22. .

The reinforcement fitting hole 22 is formed in a plurality at a predetermined interval on the upper portion of the steel pipe 20, it is preferable that the reinforcing reinforcing bar 10 is formed in an elliptical shape so as to be easily fitted.

The reinforcing member 50 is formed so that one side is caught by the upper end of the steel pipe 20 in the "형" shape so as not to be separated from the steel pipe 20, the other side is the lower disc ( A support 54 is formed in an “L” shape so as to be fixed to the bottom through the through hole 42 of the 40 so as to support the lower disc 50.

Here, the inner reinforcing bar 13 of the inner reinforcing bar 13 of the reinforcing bar 10 introduced into the steel pipe 20 further includes an inner band reinforcing bar 32 that reinforces secondary to bind and support the reinforcing bar 10. It is preferred to be provided.

As described above, the connection structure for reinforcing the steel pipe pile head has a bearing area by increasing the diameter of the reinforcing bar 10 bound by the upper band reinforcing bar 18 and the outer band reinforcing bar 30 than the diameter of the steel pipe 20. This widening can increase the dispersing effect on the pressure input, the upper band reinforcing bar 18 and the inner band reinforcing bar 32 for the reinforcement of the reinforcing bar 10 is provided to be able to construct more firmly.

5 to 7, the connection structure for reinforcing the steel pipe pile head according to another embodiment of the present invention is the inner band reinforcement 32 provided in the inner reinforcement portion 13 of the reinforcing bar 10 In place of the steel pipe 20 may be further provided with a + -shaped fixed rebar 60 having the same length as the diameter of the steel pipe 20 in the upper portion of the bent portion 16 introduced into the steel pipe 20.

In addition, as shown in Figure 8, the connection structure for the steel pipe pile head reinforcement according to another embodiment of the present invention is the inner band reinforcement 32 provided in the inner reinforcement portion 13 of the reinforcing bar 10 And + -shaped fixed rebar 60 having the same length as the diameter of the steel pipe 20 on the upper portion of the bent portion 16 introduced into the steel pipe 20 may be formed together.

Looking at the operation of the present invention configured as described above based on the manufacturing process, the steel pipe piles and reinforcing bars, reinforcing members, lower discs and the like transport to a predetermined workplace. In this case, the volume is small during transportation to prevent deformation, can be easily transported in a short time, and the material transported to a predetermined workshop can be used directly assembled.

"자형으로 굴곡시켜 놓은 다음, 상기 강관(20)의 상부에 일정간격으로 복수개의 철근끼움공(22)을 타원형으로 관통시켜 뚫어 놓는다.First, the reinforcing bar 10 having the shape of "∪"

"After bending in a shape, the plurality of rebar fitting holes 22 through the oval at a predetermined interval in the upper portion of the steel pipe 20 is drilled.

The lower disc 40 forms a plurality of through-holes 42 close to the outer periphery so that one side of the reinforcing member 50 is fixed.

The reinforcing member 50 is formed on the upper end of the steel pipe 20 by forming a locking portion 52 of the "∩" shape, the other side penetrates the through hole 42 and the lower disc 40 The support portion 54 is formed to be fixed to the bottom of the "L" shape.

In addition, the support part 54 of the reinforcing member 50 penetrates into the lower disc 40 to fix it, and then is inserted into the steel pipe 20, and the locking part 52 is provided at the upper end of the steel pipe 20. Takes).

"자형 보강부(12)의 수평부분이 위치되게 한다.In this state, the reinforcing bar 10 is fitted / coupled to the reinforcing hole 22, "

"Horizontal portion of the shaped reinforcement 12 is positioned.

At this time, by using the reinforcing bar 10 in combination to increase the pressure area by dividing the pressure input, and to bend the buried part in the concrete to cure integrally with the foundation concrete to increase the pull force due to a certain hardening effect safe foundation The construction of the structure can be expected.

Here, the plurality of upper reinforcing bars (18) on the outside of the reinforcing bar 10 so as to be connected to the plurality of the reinforcing bar 10 is fitted / coupled to the steel pipe (20) at a predetermined interval to bind to each other, The outer reinforcing bars 14 of the reinforcing bar 10 are connected to each other by using the outer band reinforcing bar 30.

In addition, the inner reinforcing bar 13 of the reinforcing bar 10 is provided with an annular inner band reinforcing bar 32 to connect the respective inner reinforcing parts 13 to bind.

Therefore, the reinforcing bar 10 directly penetrates the upper part of the steel pipe 20 to fix the upper disc and bolts and nuts, which do not require a separate upper disk to fix the reinforcing bar 10, and thus the structure is simple. It can be easily installed in the field, reduced self-control costs, and can shorten the process such as welding work.

According to the present invention as described above, by simplifying the structure by reducing the number of parts can be easily handled and assembled on site, thereby reducing the construction time and the overall construction cost due to the reduction of material costs It is possible to expect high efficiency in economic terms.

In addition, by using reinforcing bars with internal and external reinforcing parts, it is possible to spread the pressure input by increasing the acupressure area, to be excellent in earthquake resistance, and to bend the buried parts in concrete to cure integrally with the foundation concrete. By increasing the pulling force due to the hardening effect, there is an effect that can be expected to construct a safe foundation structure.

Claims (3)

"∪" shaped bent portion 16 is formed at one end and fitted / coupled to the upper portion of the steel pipe 20, but bent a plurality of times to the portion that is coupled to the steel pipe 20 "

"A plurality of reinforcing bars 10 having a reinforcing portion 12 of the shape, A plurality of rebar fitting holes 22 having ellipses formed at regular intervals on the upper outer circumferential surface of the steel pipe 20 so that the reinforcing bars 10 are fitted / coupled respectively; An outer band reinforcing bar 30 provided outside the outer reinforcing bar 14 of the reinforcing bar 10 to bind and support the reinforcing bar 10; A lower disc 40 inserted into the steel pipe 20 and having a plurality of through holes 42 proximate to an outer circumference thereof; A plurality of reinforcing members 50 formed on both sides are bent, but one side of the hook portion 52 is formed to be caught by the upper end of the steel pipe 20 and the other side is formed in the support portion 54 to be fitted into the through hole 42. Connection structure for reinforcing steel pipe pile head, characterized in that consisting of. The method of claim 1, The inner reinforcing bar 13 of the reinforcing bar 10 introduced into the steel pipe 20 is characterized in that the inner band reinforcing bar 32 is further provided to bind and support the reinforcing bar 10. Connection structure for pile head reinforcement. The method according to claim 1 or 2, The steel pipe pile head reinforcement is further provided on the upper portion of the bent portion 16 introduced into the steel pipe 20 having a + -shaped fixed rebar 60 having the same length as the diameter of the steel pipe 20. Connection structure.

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