KR200247044Y1 - the head reinforcement structure of steel pipe - Google Patents

Abstract

The present invention relates to a steel pipe pile head reinforcement structure, is coupled to the head of the steel pipe pile (11), the flange 14 is formed on the upper end, the support step (15) is formed on the inner peripheral surface and the air hole ( 20 and a circular tube 13 formed; A finishing ring 12 provided between an upper surface of the cut steel pipe pile 11 and a bottom surface of the flange 14 of the circular tube 13; The inner side of the circular tube 13 is inserted into the circumferential support of the support step 15 of the circular tube 13, the radially fixed reinforcing hole 17 is formed, a plurality of holes 18 is formed in a ring shape A steel pipe pile head reinforcement structure consisting of a pedestal 16 was provided.

Therefore, the finishing ring (12) is inserted into the end of the steel pipe pile (11) to maintain the horizontal, and then the adhesive is applied to the inner peripheral surface of the steel pipe pile (11), the upper end of the finishing ring (12) and the outer peripheral surface of the circular tube (13) 16 is the operation of inserting and fixing the circular tube 13, which is fixed in advance in the support step 15, into the steel pipe pile 11, the reinforcing bar 19 is the bottom portion of the circular tube 13 and the foundation of the structure After all of the reinforcing bars are inserted into the reinforcing bar fixing hole 17 of the base 16, the steel pipe pile 11 head reinforcement construction is completed, so no bolts or welding work is required, and the working time can be shortened. Rather, the steel pipe pile 11 and the circular tube 13 is tightly installed without voids to ensure very good quality.

Description

Steel head pile head reinforcement structure {the head reinforcement structure of steel pipe}

The present invention relates to a steel pipe pile, and more particularly to a steel pipe pile head reinforcement structure.

Steel pipe piles are used when constructing large structures such as bridges on soft ground. When constructing structures such as bridges on soft ground, the foundation must be strong. If the foundation is not strong, damage by ground subsidence may occur, so if the ground strength of the ground is not sufficient, additional foundation dig should be carried out or piled up until the good ground appears.

The choice of whether to carry out additional foundation excavation or to install foundation concrete after laying piles is usually determined by the construction cost. However, it is economical to drill piles when the depth of excavation is about 5m or more. Steel pipe files are one of several types and are widely used because of their high reliability.

Looking at the construction process of the steel pipe pile, after the flattening work, surveying to determine the location to pile the pile, hammered the pile to the depth to secure the support force with a hammer and cut to a constant height. After the pile is cut to a certain height, the pile cutout is reinforced to bring the pile and the foundation concrete together. This is called head reinforcement.

In the conventional manner, the factory-made head reinforcement 2 is inserted into the steel pipe pile 1, the bolt 6 is fastened and the reinforcement is formed in the preformed hole 4 after the bottom part of the foundation is reinforced. Bolt type head reinforcement method to insert reinforcing bar (5).

This method does not process smoothly and horizontally when cutting the steel pipe, so there is a gap between the lower end of the head reinforcement and the end of the steel pipe so that the load on the upper part of the foundation is transferred to the bolt part through the circular plate, and the stress of the upper part of the bolt part is increased. This structure is concentrated and reinforced only in the form of crosses 3 inside the steel pipe, and has a structure in which the reinforcing bar 5 fixed to the head reinforcement 5 is not sufficiently settled. In consideration of the manufacturing process and installation of the tofu reinforcement body (2), it was judged that there is a need for improvement.

An object of the present invention for solving the above problems is to provide a steel pipe pile head reinforcement structure to have an excellent anticorrosive and shortened working time to have excellent workability and stable assembly structure.

The steel pipe pile head reinforcement structure of the present invention for achieving the above object, in the steel pipe pile head reinforcement structure, is coupled to the head of the steel pipe pile, a flange is formed on the top, a support step is formed on the inner circumferential surface, A circular tube having a hole formed therein; A finishing ring provided between an upper surface of the cut steel pipe pile and a flange bottom surface of the tube; It is inserted into the inner circular tube is supported on the support step of the circular tube, the reinforcing bar is formed radially, characterized in that made of a ring-shaped seat formed with a plurality of holes.

Therefore, insert the finishing ring at the end of the steel pipe pile to maintain the horizontal, then apply adhesive to the inner circumferential surface of the steel pipe pile, the upper end of the ring ring and the outer circumferential surface of the round tube to insert the round tube pre-installed in the steel pipe pile into the inside of the steel pipe pile The fixed reinforcing bar is installed by inserting the reinforcing bar into the hole of the seat after both the round tube and the bottom part of the base of the structure have been placed, thus completing the reinforcement construction of the steel pipe pile, so no bolts and welding work are required. In addition to shortening the construction, there is no effect between the end of the steel pipe pile and the circular tube without any voids, there is an effect that can ensure a very good quality.

1 is an exploded perspective view showing an embodiment of a conventional steel pipe pile head reinforcement structure

Figure 2 is an exploded perspective view showing the steel pipe pile head reinforcement structure

3 is a cross sectional view of FIG.

* Description of the symbols for the main parts of the drawings *

11; Steel pipe pile 12; Finishing ring

13; Round tube 14; flange

15; Support step 16; Base

17; Rebar fixing holes 19; Rebar

20; Air hole (of round tube)

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing the steel pipe pile head reinforcement structure of the present invention, Figure 3 is a coupling cross-sectional view, which is composed of a circular tube 13, the closing ring 12, the base 16.

The circular tube 13 is coupled to the head of the steel pipe pile 11, the flange 14 is formed on the upper end, the support step 15 is formed on the inner peripheral surface.

Finishing ring 12 is provided between the upper surface of the cut steel pipe pile 11 and the bottom surface of the flange 14 of the circular tube 13, a plurality of holes 21 are formed and the inner portion (circular tube 13 ) The bent side of the flange) has a rounded structure.

When the steel pipe pile 11 is put into the ground and cut out to a certain height, the cut surface of the steel pipe pile 11 is not smooth, and angles are cut in and out of the cut surface. Therefore, by applying an adhesive, insert the finishing ring 12 into the steel pipe pile (11) and injecting an adhesive such as epoxy into the hole (21) to prevent the occurrence of voids, by rounding the part that contacts the flange of the circular tube (13) To be in close contact with the round tube (13).

When the steel pipe pile 11 is driven into the ground and cut out to a certain height, the cut surface of the steel pipe pile 11 is not smooth, and shear failure occurs in the notch portion generated during cutting. Therefore, the inside of the cut surface of the steel pipe pile 11 (bending surface of the bent portion of the circular tube flange) is bent and the finishing ring 12 is formed so as to form a plurality of holes in the upper surface so that the adhesive can be filled.

The pedestal 16 has a disk-shaped ring shape, a reinforcing bar fixing hole 17 is formed radially, and a plurality of holes 18 are formed.

The pedestal 16 is horizontally mounted inside the circular tube 13, when the pedestal 16 is inserted into the circular tube 13, the outer circumference of the pedestal 16 is seated and supported on the support step 15. This is done prior to bringing it into the field.

The steel pipe pile head reinforcement structure of this structure applies a material with high adhesive strength, such as epoxy, which is a polymer material, to the inside of the steel pipe pile 11 and the outer side of the circular tube 13. Then, the FRP (Fiber Reinforced Polymers) circular tube 13 having the flange 14 manufactured to a predetermined size is inserted into the steel pipe pile 11. When the circular tube 13 is inserted into the steel pipe pile 11, the air inside the steel pipe pile 11 is discharged through the air hole 20 formed in the bottom plate of the circular tube 13, so that the inside of the steel pipe pile 11 The outer surface of the circular tube 13 is more tightly bonded.

In addition, the reinforcing bar 19 is inserted into the reinforcing bar fixing hole 17 formed in the pedestal 16 after reinforcing the structure foundation bottom reinforcing bar. The reinforcing bar 19 is installed in the shape of the reinforcing bar 5 of FIG. 1 and is installed by cutting the general bar.

Since the reinforcing bar fixing holes 17 are radially formed around the base 16, the reinforcing bar 19 can be installed so as not to interfere with the bottom of the structure foundation, and the holes 18 are made of concrete by the base 16. It is not to be separated, it is considered to be able to install additional reinforcing bars (19) if necessary.

The steel pipe pile head reinforcement structure of the present invention has various advantages. First, there is no need to form a bolt hole in the steel pipe pile 11, and a method of inserting a ready-made product manufactured at the factory into the steel pipe pile 11 inside. The operation is simple because it is installed as.

Secondly, in the conventional method, since the portion reinforced with the cross reinforcing plate 3 is reinforced with the circular tube 13 having the flange 14 formed thereon, the circumferential surface of the head of the steel pipe pile 11 is uniformly reinforced, so it is very structurally safe. .

Third, after maintaining the horizontal state of the cut portion with the finishing ring (16), the steel pipe pile (11) and the circular tube (13) is tightly integrated using a large adhesive strength adhesive, so structurally very stable, the adhesive Epoxy etc. can be used as a furnace.

Fourth, since the reinforcing bars 17 are formed in the base 16, the reinforcing bars 19 can be selectively inserted and installed so as not to interfere with each other after reinforcing the partial bottom of the structure foundation.

Fifth, since the reinforcing bar 19 is sufficiently inserted into the steel pipe pile 11 and the foundation concrete is inserted into the circular tube 13, the steel pipe pile 11 portion and the foundation portion have a sufficiently integrated structure.

Sixth, because it is installed in a FRP manufactured to a certain standard with sufficient rigidity is excellent in anticorrosion, and can be maintained in the head stability of the steel pipe pile (11) is made structurally stable.

According to the steel pipe pile head reinforcement structure according to the present invention as described above, by inserting the finishing ring 12 at the end of the steel pipe pile (11) to maintain the horizontal, the inner circumferential surface of the steel pipe pile (11) and the upper end of the finishing ring (12) And by applying the adhesive on the outer peripheral surface of the round tube 13, the base 16 is inserted into the steel tube pile 11 inside the steel tube pile 11 is fixed to the support step (15) in advance and fixed installation, reinforcing bars ( 19) is inserted into the hole 18 of the pedestal 16 after the circular tube 13 and the bottom reinforcing bar of the structure foundation are all reinforcement, thereby completing the reinforcement construction of the steel pipe pile 11 head bolt, welding There is no need to reduce the working time as well as close contact between the end of the steel pipe pile 11 and the circular tube 13 without voids has the effect of ensuring a very good quality.

Claims (1)

In the steel pipe pile head reinforcement structure, A circular tube 13 coupled to the head of the steel pipe pile 11, a flange 14 formed at an upper end thereof, a support step 15 formed at an inner circumferential surface thereof, and a hole 20 formed at a bottom portion thereof; A finishing ring 12 provided between an upper surface of the cut steel pipe pile 11 and a bottom surface of the flange 14 of the circular tube 13; The inner side of the circular tube 13 is inserted into the circumferential support of the support step 15 of the circular tube 13, the radially fixed reinforcing hole 17 is formed, a plurality of holes 18 is formed in a ring shape Steel pipe pile head reinforcement structure, characterized in that consisting of the pedestal (16).