KR20210104486A - Buckling prevention wheel for steel pipe connection and its installation structure and construction method - Google Patents

Abstract

A purpose of the present invention is to provide a buckling prevention wheel for steel pipe connection, capable of promoting long spanning for the length of a spread beam by using a steel pipe having a predetermined length instead of an H beam used as a spread beam and connecting the steel pipe through a buckling prevention wheel as well as preventing the sagging of the spread beam by forming a protrusion on the spread beam, an installation structure thereof and a retaining wall temporary-facility spread beam construction method using the same. To achieve the purpose, the buckling prevention wheel for steel pipe connection is made of a steel sheet having a predetermined thickness and diameter, and six to eight bolt holes are formed on an inner circumference surface of the steel sheet. Moreover, to achieve the purpose, the installation structure of the buckling prevention wheel for steel pipe connection is designed to fix and couple steel pipes with flanges attached thereon, which are placed opposite each other at a predetermined distance from each other, with a high-tension bolt and nut using the buckling prevention wheel as a medium. Moreover, to achieve the purpose, the retaining wall temporary-facility spread beam construction method using the buckling prevention wheel for steel pipe connection includes the following steps of: vertically installing a plurality of H beams opposite each other at a predetermined distance from each other; installing a furring strip across the H beams; and fixing and installing a spread beam on the furring strip using a crane as a medium.

Description

Buckling prevention wheel for steel pipe connection and its installation structure and construction method for retaining temporary facilities using the same {Buckling prevention wheel for steel pipe connection and its installation structure and construction method}

The present invention relates to a buckling prevention ring for connecting a steel pipe, an installation structure thereof, and a method of constructing a retaining temporary brace using the same. It relates to a buckling prevention ring for connecting a steel pipe that is connected with a wheel to achieve a longer span, and an installation structure thereof, and a method for constructing a retaining beam using the same.

In general, an underground retaining wall or excavation construction is required during construction or civil engineering works.

When constructing such an underground retaining wall or excavation, the retaining work must be preceded for safety, so a temporary facility for the retaining work is required.

The temporary facility installation method for such retaining construction is generally performed by the following process. First, the H-beam 20 is driven vertically along the retaining wall or the excavated wall, and the earth plate 30 or the earth wall between the H-beam 20 After completing the, the wall 10 to which the wale 40 is coupled is made by installing the wale 40 horizontally in order to supplement their horizontal support.

Then, the H-beam 20 is driven vertically and horizontally at regular intervals on the excavation space, and by connecting them, it serves as a support material, so that the wall 10 does not collapse even by a load.

However, the H-beam 20 used as a support material for a conventional wall made of the above steps is generally bulky and heavy, and is installed vertically and horizontally in double, triple, and multiple, so that the excavation space is very complicated and there is a risk of an accident. As well as existing, the H-beam 20 is consumed a lot, and the time and labor cost for installation and separation of the H-beam 20 are increased, so there is a non-productive and uneconomical problem.

In addition, when the excavation space is wide, the H-beam 20 is long connected and used, which may result in poor connection of the connection part. It is not closely coupled to the wall 10 due to the load of the retaining wall is inclined inwardly there is a risk of collapse.

In order to solve this problem, in the related art, between the H-beam 20 and the wale 40 is forcibly welded or connected with concrete to safely bond the wale 40 and the H-beam 20 .

However, even by this, the connecting portion between the wale 40 and the H-beam 20 is insufficient to support the load of the retaining wall. There is a problem.

Registered Patent 10-0646178 (Registration Date: November 08, 2006)

Accordingly, the present invention has been devised to solve the above problems, and instead of the H-beam used as a brace, a steel pipe having a certain length is used, and the connection of the steel pipe is connected with an anti-buckling wheel to increase the length of the brace. The purpose of this is to provide a buckling prevention ring for steel pipe connection that not only promotes the long span of the beam, but also prevents deflection of the brace by forming a bulge in the brace, its installation structure, and a method for constructing a temporary retaining beam using the same.

The anti-buckling ring for steel pipe connection according to the present invention for achieving the above object is formed of a steel plate having a predetermined thickness and diameter, and 6 to 8 bolt holes are formed on the inner circumferential surface of the steel plate.

In addition, the anti-buckling wheel installation structure for steel pipe connection according to the present invention for achieving the above object is a high-tensile bolt and nut through the anti-buckling wheel between steel pipes with flanges that are disposed to face each other at regular intervals from each other. It is characterized in that it is fixed and fastened.

And, the temporary retaining structure brace construction method using the buckling prevention ring for steel pipe connection according to the present invention for achieving the above object includes the steps of vertically installing a plurality of H-beams to face each other at regular intervals; installing a wale across the H-beam; It is characterized in that it consists of a step of fixing and installing the beotimbo to the wale through a crane.

As described above, the buckling prevention ring for steel pipe connection according to the present invention, its installation structure, and the retaining temporary structure brace construction method using the same have the following effects.

First, the present invention uses a steel pipe having a certain length instead of an H-beam used as a brace, and connects the connection of the steel pipe with an anti-buckling wheel to increase the length of the brace, as well as to form a bulge in the brace. It has the effect of preventing the deflection of the brace.

Second, the present invention has an economical effect that can be reused repeatedly, by fastening all the members used in the construction of the temporary retaining system with high-tensile bolts and nuts.

1 is a perspective view showing a temporary facility consisting of a conventional vertical H-beam and a horizontal H-beam;
2 is a front view showing an anti-buckling wheel according to the present invention;
3 is a perspective view showing an installation structure of an anti-buckling wheel for connecting a steel pipe according to the present invention;
4 is a cross-sectional view showing a buckling prevention wheel installation structure for connecting a steel pipe according to the present invention;
5 is an exemplary view showing an embodiment of the buckling prevention wheel installation structure for steel pipe connection according to the present invention;
Figure 6 is an exemplary view showing a retaining temporary facility brace using a buckling prevention wheel for connecting a steel pipe according to the present invention.

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

[Shape of anti-buckling wheel]

Figure 2 is a front view showing the buckling prevention wheel according to the present invention.

As shown in this figure, the anti-buckling ring 100 for connecting a steel pipe according to the present invention is formed of a steel plate 110 having a predetermined thickness and diameter, and 6 to It has a structure in which eight bolt holes 140 are formed.

The anti-buckling ring 100 for connecting a steel pipe according to the present invention having the configuration as described above uses a steel plate 110, which is a general structural steel, and has 6 to 8 bolt holes on the inner circumferential surface 130 of the steel plate 110 ( By forming 140), there is an effect of reducing material cost when connecting to the steel pipe 200 .

[Anti-buckling wheel installation structure]

FIG. 3 is a perspective view showing the installation structure of the anti-buckling wheel for connecting a steel pipe according to the present invention, and FIG. 4 is a cross-sectional view showing the installation structure of the anti-buckling wheel for connecting a steel pipe according to the present invention.

As shown in these drawings, the anti-buckling wheel installation structure for steel pipe connection according to the present invention has a predetermined thickness and diameter between the steel pipes 200 to which the flanges 210 are disposed to face each other at regular intervals. It is formed of a steel plate 110 having a high tension bolt (B) and a nut (N) via a buckling prevention wheel 100 having at least 6 to 8 bolt holes 140 formed on the inner circumferential surface 130 of the steel plate 110 . ) to be fixed and fastened.

The installation structure of the anti-buckling wheel for steel pipe connection configured as described above can overcome the limitations on the installation length and transport length of the general single steel pipe 200, and the length of the steel pipe 200, that is, the length of the brace (S). It has the effect of maximizing the use of the member because it can be variably adjusted.

In particular, since the conventional steel pipe has a limited length, by extending the length by welding as necessary, the rigidity of the steel pipe according to welding of the steel pipe is weakened, and there is a problem in that the material is wasted due to one-time use.

In the present invention, a standard steel pipe is used and the steel pipe is connected with a high-tensile bolt and nut using an anti-buckling ring to achieve long-distance reinforcement, thereby overcoming the weakening of rigidity due to welding of the steel pipe. Instead, it has the effect of being able to be reused indefinitely by simply separating the high-tensile bolt and nut.

5 is an exemplary view showing an embodiment of the buckling prevention wheel installation structure for connecting a steel pipe according to the present invention.

As shown in this figure, the anti-buckling wheel installation structure for steel pipe connection according to the present invention has a predetermined thickness and diameter between steel pipes 200 to which flanges 210 are disposed to face each other at regular intervals. High tension bolt (B) and nut (N) formed of a steel plate 110 having ), and the steel pipe 200 to which the flange 210 is attached is configured to have a central portion protruding upward (arrow shape) as a whole.

That is, the buckling prevention wheel installation structure for steel pipe connection according to the present invention generally causes sagging in proportion to the length of the steel pipe 200 as the length increases. In order to overcome such a deflection phenomenon in advance, a bulge of a certain height is formed in the steel pipe 200 in advance to overcome the deflection occurring in the steel pipe 200 later.

Thus, by forming the bulge in the steel pipe in advance, the length of the steel pipe can be extended and used, so that efficient use of the member can be achieved.

[Construction of Temporary Retaining Structural Beams Using Buckling Prevention Rate]

6 is an exemplary view showing a retaining temporary facility brace using an anti-buckling wheel for connecting a steel pipe according to the present invention.

As shown in this figure, the method of constructing a retaining temporary facility brace using an anti-buckling ring for connecting a steel pipe according to the present invention is a step of vertically installing a plurality of H-beams (H) to face each other at regular intervals (S 1) ); Installing a band (W) across the H beam (H) (S 2); It consists of a step (S3) of fixing and installing the beotimbo (S) to the wale (W) via a crane.

Here, the beotimbo (S) is disposed in the center and at the same time a steel pipe 200 with a flange 210 attached to face each other at a predetermined distance from each other; The anti-buckling wheel 100 is fixed and fastened between the steel pipe 200 on one side and the steel pipe 200 on the other side with a high tension bolt (B) and a nut (N); It consists of a hydraulic cylinder 300 fixedly installed on the steel pipe 200 on one side.

In addition, the steel pipe 200 to which the flange 210 is attached is configured to have a central portion protruding upward as a whole.

And, the anti-buckling wheel 100 is formed of a steel plate 110 having a predetermined thickness and diameter, and 6 to 8 bolt holes 140 are formed on the inner circumferential surface 130 of the steel plate 110 .

Meanwhile, the anti-buckling wheel 100 is formed to be larger than the diameter of the flange 210 .

In addition, a plurality of bracings (X) are fixedly installed between the steel pipe (200) and the H-beam (H).

Hereinafter, the construction method of the temporary retaining facility using the buckling prevention wheel for connecting the steel pipe according to the present invention will be described in detail by dividing it into each step.

First, the H-beam (H) installation step (S 1) is a step of vertically installing a plurality of structural steel H-beams (H) to be opposed to each other at regular intervals on the target ground.

Next, the wale (W) installation step (S 2) installs the wale (W) across the H beam (H).

Next, the beotimbo (S) installation step (S3) is at regular intervals in the factory or field, and after installing a plurality of H-beams (H) to face each other vertically, cross the H-beams (H) After (W) is installed, the steel pipe 200 to which the flange 210 is attached is arranged at a predetermined distance from each other so that the center part rises upward as a whole in the factory, and then between the steel pipe on one side and the steel pipe on the other side A high tension bolt (B) and a nut (N) are formed of a steel plate 110 having a predetermined thickness and diameter, and 6 to 8 bolt holes 140 are formed on the inner circumferential surface 130 of the steel plate 110 . ), and then the hydraulic cylinder 300 is fixedly installed on the steel pipe 200 on one side to manufacture a brace.

Next, in a state in which the beam constructed as described above is lifted by a crane, the brace is fastened between the waders with high-tensile bolts and nuts, and then the hydraulic cylinder is operated to apply hydraulic force to the steel pipe to ensure adhesion between the steel pipe and the wale. to keep

On the other hand, it should be noted that the step of fixing and installing a plurality of bracings (X) between the steel pipe 200 and the H-beam (H) may be added to the above step as needed.

As described above, the method of constructing a retaining temporary support brace using an anti-buckling ring for connecting a steel pipe according to the present invention uses a steel pipe having a certain length instead of an H-beam used as a conventional brace, and prevents the connection of the steel pipe from buckling. By connecting with a wheel, not only can the length of the brace be made longer, but it can also prevent sagging of the brace by forming a bulge in the brace. There is an action effect that can be reused.

The preferred embodiments described in the detailed description of the present invention are illustrative and not restrictive, the scope of the present invention being indicated by the appended claims, and all modifications falling within the meaning of those claims are intended for the present invention. will be included

100: buckling prevention wheel 110: steel plate
130: inner circumference 140: bolt ball
200: steel pipe 210: flange
300: hydraulic cylinder B: high tension bolt
H: H Beam N: Nut
S: bracing W: braid
X: bracing

Claims (11)

An anti-buckling ring for connecting a steel pipe, characterized in that it is formed of a steel plate (110) having a predetermined thickness and diameter, and 6 to 8 bolt holes (140) are formed on the inner peripheral surface (130) of the steel plate (110). It is characterized in that it is fixed and fastened with a high-tensile bolt (B) and a nut (N) via a buckling prevention wheel 100 between the steel pipes 200 to which the flanges 210 are disposed to face each other at regular intervals. Anti-buckling wheel installation structure for steel pipe connection. 3. The method of claim 2,
The steel pipe 200 to which the flange 210 is attached is configured to have a central portion protruding upward as a whole. 3. The method of claim 2,
The anti-buckling wheel 100 is formed of a steel plate 110 having a predetermined thickness and diameter, and 6 to 8 bolt holes 140 are formed on the inner circumferential surface 130 of the steel plate 110. Anti-buckling wheel installation structure for connection. 5. The method of claim 2 or 4,
The anti-buckling wheel 100 is an anti-buckling wheel installation structure for steel pipe connection, characterized in that it is formed larger than the diameter of the flange 210 . A step of vertically installing a plurality of H-beams (H) to face each other at regular intervals (S 1);
Installing a band (W) across the H beam (H) (S 2);
Retaining temporary facility brace construction method using a buckling prevention ring for steel pipe connection, characterized in that it consists of a step (S 3) of fixing and installing the brace (S) to the wale (W) via a crane. 7. The method of claim 6,
The beotimbo (S) is disposed in the center and at the same time a steel pipe 200 with a flange 210 attached to face each other at a predetermined distance from each other; The anti-buckling wheel 100 is fixed and fastened between the steel pipe 200 on one side and the steel pipe 200 on the other side with a high tension bolt (B) and a nut (N); Temporary retaining construction method using a buckling prevention ring for connecting a steel pipe, characterized in that it consists of a hydraulic cylinder (300) fixedly installed on the steel pipe (200) on the one side. 7. The method of claim 6,
The steel pipe 200 to which the flange 210 is attached is constructed so that the central part as a whole protrudes upward. 7. The method of claim 6,
The anti-buckling wheel 100 is formed of a steel plate 110 having a predetermined thickness and diameter, and 6 to 8 bolt holes 140 are formed on the inner circumferential surface 130 of the steel plate 110. A method of constructing a retainer for a temporary retaining structure using an anti-buckling ring for connection. 10. The method of claim 6 or 9,
The buckling prevention ring 100 is a retaining temporary facility support construction method using the buckling prevention ring for steel pipe connection, characterized in that it is formed larger than the diameter of the flange 210. 7. The method of claim 6,
A method of retaining temporary braces using an anti-buckling ring for connecting a steel pipe, characterized in that a plurality of bracings (X) are fixedly installed between the steel pipe (200) and the H-beam (H).

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