KR200233328Y1 - a steel pipe pile strengthened a bolt coupling method of the joint reinforcement - Google Patents

Abstract

The present invention relates to a steel pipe pile reinforced by a bolted joint reinforcing means, in particular, a reinforcing means composed of a plurality of reinforcing pieces forming an arc shape is provided, coupled to the inside of the joint portion where two cylindrical steel pipe piles are in contact, It simply connects the files to make them durable.

Looking at the configuration according to the first embodiment of the present invention, largely divided into three parts of the cylindrical steel pipe pile (10, 10 '), the reinforcing pieces (20) provided inside the joint portion, the bolt 30 to couple them First, the cylindrical steel pipe pile (10, 10 ') is a general cylindrical shape to form a plurality of through holes 11 at regular intervals, that is, 12 rows of three through holes 11 formed in three vertically It is.

In the joint reinforcement piece 20, the inner projection 21 which is convenient to hold the hand when working in the longitudinal direction at the inner center of the reinforcement piece 20 forming an arc shape, and can prevent the bending deformation by external pressure. Is provided, and six through holes 22 are formed on both sides thereof, which are formed at the same spacing and size as the through holes 11 on the cylindrical steel pipe piles 10 and 10 ', In the inner diameter portion, the groove 22b is formed to a predetermined depth by forming a helical thread angle 22a and an inclination angle from both sides to the center with the center of the upper end of the thread angle 22a as a starting point.

In addition, the outer diameter portion of the bolt 30 provided to couple the reinforcing piece 20 inwardly with the cylindrical steel pipe piles 10 and 10 'may also have a thread angle 30a and the same as the inner diameter portion of the through hole 22. The groove 30b is formed, which is in contact with the thread angle 22a and the thread angle 22a formed in the inner diameter portion of the through-hole 22 on the reinforcing piece 20.

By connecting the steel pipe pile (10, 10 ') and the reinforcing piece 20 as described above with a bolt 30, when the two pile (10, 10') to connect and use, When hitting the pile (10), the pressure of the upper pile (10) is hit directly to the lower pile (10 '), the lower pile (10') is lodged and the upper pile (10) is also hit. Since the inner reinforcing piece 20 is firmly fastened by the bolt 30 and the through-hole 22 on the reinforcing piece 20, it is not affected by the strong pressure applied to the piles 10 and 10 ′, It functions as a reinforcing piece 20 while being fixed inside the 10, 10 '), and can be used by driving the piles 10 and 10' to a depth required by the user.

Through this configuration and operation, two files can be connected and used for durability, and they can not be easily loosened even by external vibration or shaking, and work quickly without the need for separate working manpower or equipment for welding. It can maximize the workability and at the same time have the effect of maximizing economic efficiency by greatly reducing the number of necessary parts.

Description

Steel pipe pile strengthened a bolt coupling method of the joint reinforcement}

The present invention relates to a steel pipe pile reinforced with a bolted joint reinforcing means, in particular, a cylindrical reinforcement means of six reinforcing pieces forming an arc shape is provided, coupled to the inside of the joint portion of the two cylindrical steel pipe piles, It simply connects the files to make them durable.

In general, for the construction of high-rise buildings, in order to support the load of the building to be built, the ground is constructed to reinforce the ground so that the ground on which the foundation will be constructed can bear the load of the foundation. If the ground to be constructed is soft, randomly piled concrete or steel piles into the ground, forcibly increasing the bearing strength of the ground to secure hard ground.

Recently, a cylindrical steel pile is used as a member used for reinforcing the ground, which is easier to use and construct than a concrete pile. For the above ground reinforcing work, the building is constructed to a place where a hard soil layer or a rock layer is formed by investing time and manpower. In consideration of the load, piles are to be installed at various depths in the ground.

However, the length of steel piles supplied in the past is in a standard form, which is fixed to a certain standard. Should be connected and used.

At this time, as a method of joining the piles, the damaged pile heads of the lower piles first hit and embedded in the ground are sorted out, and then the mating surfaces of the piles are brought into contact with one end of the upper piles. The upper and lower piles are integrated.

In the field welding, the upper pile should be fixed by mobilizing a crane, etc. during the welding operation time. In this case, there was a problem that it was difficult to match the axis center of the upper and lower piles. Due to the bending deformation caused by vertical load or striking force at the joint of the upper and lower piles, there was a problem that the upper load of the upper structure could not be supported.

In addition, the welding work requires a variety of welding equipment, including a separate welder, oxygen tank and welding machine for welding work, and the problem of delaying the air due to the difficulty of welding work that requires a lot of time and high technology Functioned.

In addition, in order to recycle the pile connected by welding, it is cumbersome to cut the pile attached by welding, and if the worker must perform the same work in the underground site or inconvenient work conditions, the welding equipment is transported and the pile is joined. Since the work time is further increased, there is a problem in that the economic losses due to the air extension.

As another pile connection method, a connector that is fitted in the inner side in addition to the welding method may be used, and after fixing the connector by fastening bolts and nuts only to the lower pile, the upper pile may hold the nut fastened inwardly. Since no means were devised at all, it had to be simply inserted onto the connector.

The present invention solves the above problems in connecting two piles of standard length, and a reinforcing means composed of a plurality of reinforcing pieces forming an arc is provided inside a joint portion where two cylindrical steel pipe piles contact each other. By combining, it is an object of the present invention to provide a cylindrical steel pipe pile reinforced by a joint reinforcing means that can be used simply by connecting two files durable.

In addition, in the bolt used for joining the cylindrical steel pipe pile and the reinforcing piece, a thread angle is formed in a spiral with a constant pitch at the outer diameter of the bolt, and a groove is formed between the thread angle and the thread angle, and accordingly, It is another object of the present invention to process and couple the inner diameter of the through-hole provided in the through hole so that the inner diameter of the through hole is not easily loosened by external vibration or shaking.

In addition, since the inner projection of the reinforcing piece is held and the through hole is aligned with the inside of the steel pipe pile, the bolt is inserted and screwed from the outside of the pile so that it is possible to work quickly without the need for a separate work force or welding equipment. It is another object of the present invention to maximize workability.

In addition, since the inner diameter portion of the through hole is formed by a screw portion while forming a through hole on the reinforcing piece without providing a separate nut, it is possible to significantly reduce the number of parts required by inserting a bolt as its own nut. To maximize the purpose of another.

In addition, by allowing bolts to be connected to both upper and lower steel pipe piles, solid joints between the upper and lower piles can be achieved, as well as the piles generated during the file type due to the movement of the central axis between the upper and lower piles by conventional welding fixing. Another object is to fundamentally block bending deformation and the like.

1 is an overall perspective view of a cylindrical steel pipe pile according to the present invention

Figure 2a is an enlarged cross-sectional view of the inner perspective and the through hole inner diameter of the reinforcing piece according to the present invention

Figure 2b is an outer perspective view of the reinforcing piece according to the present invention

Figure 3 is an enlarged side cross-sectional view and coupling state diagram of the outer diameter of the bolt used in the tightening of the present invention

Figure 4 is an exploded perspective view of the cylindrical steel pipe pile according to the present invention

5 is a partially assembled state of the cylindrical steel pipe pile according to the present invention

[Description of Symbols for Main Parts of Drawing]

10,10 ′: cylindrical steel pipe pile 11,22: through hole

20: reinforcing piece 21: inner projection

22a, 30a: Thread angle 22b, 30b: Groove

30: Bolt

The present invention relates to a steel pipe pile reinforced with a bolted joint reinforcing means, in particular, a cylindrical reinforcement means of six reinforcing pieces forming an arc shape is provided, coupled to the inside of the joint portion of the two cylindrical steel pipe piles, It simply connects the files to make them durable.

The present invention is made of specially manufactured steel pipe piles, Ø406.4 (16 inch), Ø508 (20 inch), Ø609.6 (24 inch) (unit cm), and specially manufactured steel pipe piles. Applicable to large and small diameter piles, four reinforcing pieces are used for 16-inch diameter piles, six reinforcing pieces for 20-inch diameter piles, and eight reinforcing pieces for 24 inch diameter piles. As long as it does not affect the strength of the lower pile joints, reinforcement plates are to be added to large diameter piles, and two or three reinforcement plates can be reduced to small diameter piles.

Thus, when the cylindrical steel pipe pile reinforced by the joint reinforcing means of the present invention will be described according to a specific embodiment, as shown in the overall perspective view according to the first embodiment of Figure 1, a large cylindrical steel pipe pile (10, 10 '), The reinforcing pieces 20 provided in the inner part may be divided into three parts of the bolt 30 to couple them, and the detailed description will be given below with reference to the accompanying drawings.

First, the cylindrical steel pipe pile (10, 10 ') is a general cylindrical shape to form a plurality of through-holes 11 at a predetermined interval on one side, that is, the three through-holes 11 of three lines are formed vertically.

In the joint reinforcing piece 20, as shown in the inner and outer perspectives of Figs. 2A and 2B, it is convenient to hold it in the vertical direction at the inner center of the reinforcing piece 20 forming an arc shape, Inner protrusions 21 are provided to prevent bending deformation caused by the inner side, and six through holes 22 are formed on both sides thereof, which are through holes 11 on the cylindrical steel pipe piles 10 and 10 '. It is formed in the same interval and size as shown in the enlarged cross-sectional view of the portion A, the inner diameter portion of the through-hole 22 from both sides to the center from the spiral thread angle 22a and the center of the upper end of the thread angle 22a as a starting point. The grooves 22b are formed to a predetermined depth by forming the inclined angles facing each other.

In addition, the outer diameter portion of the bolt 30 provided to couple the reinforcing piece 20 to the inner side of the cylindrical steel pipe piles 10 and 10 'is also threaded like the inner diameter portion of the through-hole 22 of the reinforcing piece 20. An angle 30a and a groove 30b were formed, which were sandwiched between the thread angle 22a and the thread angle 22a of the inner diameter of the through-hole 22 on the reinforcing piece 20 as shown in FIG. You will come across.

Looking at the process in which the cylindrical steel pipe pile (10, 10 ') and the reinforcing piece 20 having such a configuration is coupled to each other by the bolt 30, the lower pile in the joint portion where the two pile (10, 10') is in contact The portion in which the through hole 11 of 10 'is formed is positioned upward, and then six reinforcements are provided inside the lower pile 10' such that the inner diameter of the lower pile 10 'and the outer diameter of the reinforcing piece 20 come into contact with each other. After placing the piece 20 in a cylindrical shape and inserting it, the bolt 30 is inserted from the outside to the inside through the through hole 11 of the pile 10 'from the axial direction on the through hole 22 of the reinforcing piece 20. When rotated, the thread angles 30a of the bolts 30 are sandwiched between the thread angles 22a and the thread angles 22a formed in the through hole 22 and strongly contact each other, thereby preventing loosening.

When the coupling of the lower pile 10 'and the inner reinforcing piece 20 is completed, the upper pile 10 is connected to the outer side to connect the bolts to the remaining through holes 11 and 22 of the pile 10 and the reinforcing piece 20. 30), the connection of the two cylindrical steel pipe piles (10, 10 ') is completed firmly and neatly, this coupling process is shown well in Figures 4 and 5.

If the pile connected as described above hits the upper pile 10 in a conventional manner, the pressure of the upper pile 10 hit is directly applied to the lower pile 10 ', and the lower pile 10' The pile 10 of the upper side is also nailed while the inner reinforcing piece 20 receives the piles 10 and 10 'due to the tight coupling between the bolt 30 and the through hole 22 on the reinforcing piece 20. It is not affected by strong pressure, and functions as the reinforcing piece 20 while being fixed inside the pile 10, 10 ', and can be used to drive the pile 10, 10' according to the depth required by the user. will be.

The present invention is to provide a steel pipe pile reinforced with bolted joint reinforcement means, in the use of connecting two files of standard length, the reinforcement means consisting of a plurality of reinforcing pieces forming an arc has two cylindrical Steel pipe piles are provided inside the joints in contact with each other, so that the two piles can be easily connected to each other for durability.

In addition, in the bolt used for joining the cylindrical steel pipe pile and the reinforcing piece, a thread angle is formed in a spiral with a constant pitch at the outer diameter of the bolt, and a groove is formed between the thread angle and the thread angle, and accordingly, By processing and joining the inner diameter of the through-hole provided in the, it was not easy to loosen the external vibration or shaking.

In addition, the inner protrusions of the reinforcing pieces hold the steel pipe pile and the holes so that the bolts can be tightened and joined together, so the work can be done quickly without the need for additional work force or welding equipment, thereby maximizing workability. .

In addition, since the through hole inner diameter portion is formed as a threaded portion while forming a through hole on the cylindrical steel pipe pile and the reinforcing piece without providing a separate nut, the number of necessary parts can be achieved by acting as a self nut when the bolt is inserted. Significant savings maximized economics.

In addition, by allowing bolts to be connected to both upper and lower steel pipe piles, solid joints between the upper and lower piles can be achieved, as well as the piles generated during the file type due to the movement of the central axis between the upper and lower piles by conventional welding fixing. There is an effect that can fundamentally block the bending deformation.

Claims (2)

Cylindrical steel pipe piles (10, 10 ') formed a plurality of through holes 11 at a predetermined interval on one side, It forms an arc shape, the inner protrusion 21 is provided at the inner center in the longitudinal direction, and the through hole 22 at the same spacing and size as the through hole 11 on the cylindrical steel pipe piles 10 and 10 'vertically on both sides thereof. In the inner diameter portion of the through-hole 22, a groove having a predetermined depth is formed by forming an inclined angle from both sides toward the center portion of the outer diameter portion starting from the spiral thread angle 22a and the center portion of the outer diameter portion of the thread angle 22a. Many reinforcement pieces 20 which formed 22b, It is coupled by the anti-loosening bolt 30 formed with the thread angle 30a and the groove 30b of the same shape so as to be in contact with the thread angle 22a formed in the inner diameter portion of the through-hole 22 on the reinforcing piece 20. Steel pipe pile reinforced with bolted joints reinforcement means characterized in that it is integrated. The inner peripheral surface of the cylindrical steel pipe pile (10, 10 ') according to claim 1, wherein an inner circumferential surface of the cylindrical steel pipe pile (10, 10') formed by forming three through-holes (11) in three rows at one end thereof is in contact. Steel pipe piles reinforced with bolted joints reinforcing means characterized in that the six reinforcing pieces 20 are disposed in a cylindrical shape so as to contact the inner circumferential surface thereof).