KR20100137261A - Form and construction method using paper tube - Google Patents

Form and construction method using paper tube Download PDF

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Publication number
KR20100137261A
KR20100137261A KR1020090055600A KR20090055600A KR20100137261A KR 20100137261 A KR20100137261 A KR 20100137261A KR 1020090055600 A KR1020090055600 A KR 1020090055600A KR 20090055600 A KR20090055600 A KR 20090055600A KR 20100137261 A KR20100137261 A KR 20100137261A
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KR
South Korea
Prior art keywords
synthetic resin
resin film
branch pipe
cylindrical shape
concrete
Prior art date
Application number
KR1020090055600A
Other languages
Korean (ko)
Inventor
신병혁
Original Assignee
삼육지관공업(주)
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Priority to KR1020090055600A priority Critical patent/KR20100137261A/en
Publication of KR20100137261A publication Critical patent/KR20100137261A/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/021—Forming boards or similar elements the form surface being of cardboard
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

PURPOSE: A mold using a paper tube and a construction method are provided to enable construction to be performed to be environment-friendly and convenient, to enable a building column or a sculpture with patterns to be shaped and to enable a ground-contact rod with a large ground-contact area to be manufactured. CONSTITUTION: A mold using a paper tube comprises a paper tube(10), a synthetic resin film(20) and a sealing member(30). The paper pipe is formed in a manner paper is rolled to have a cylinder shape. The synthetic resin film is inserted into the paper tube in order to be adhered to the inner circumferential surface of the paper tube. Intaglio or embossment pattern(D) or character is formed on the surface of the synthetic resin film. The sealing member seals the lower end of the film and is formed so that concrete is not exposed to the outside of the paper tube.

Description

Form and construction method using paper tube}

The present invention relates to a formwork and a construction method, and more particularly, to a formwork and a construction method using a paper pipe that can be used to manufacture the pillars or sculptures and ground rods of the building by placing concrete in the state of assembling the film on the paper pipe.

A paper tube is generally a kind of paper pipe made by cutting a core paper to a certain width and gluing it in several layers. It is widely used in various industries, including cores of yarn or textile fabrics. In recent years, however, it has also been used as a formwork in the construction of interior buildings, columnar columns or piers.

Formwork is used to cure concrete in the shape of a desired structure by making the appearance of the structure to be built during construction or civil engineering and placing concrete therein, and wooden formwork or aluminum formwork has been mainly used in the past. By the way, the wooden formwork is deformed by the load and the pressure of the concrete during construction, and the weight is heavy and deformed due to the absorption of moisture in the concrete with repeated use, and it is already cut into several pieces, so it is continuously used repeatedly. There is a problem that is difficult to do. In addition, the wooden formwork is coupled by using a connection nail when installing a plurality of formwork in contact, there is a problem that the work is difficult and uncomfortable. In the case of aluminum formwork, it has the advantage of light weight, repeated use and strong durability compared to the wooden formwork, but has the disadvantage of being expensive. In addition, the wooden formwork and the aluminum formwork can construct a column having a generally rectangular cross section, but there is a limit in constructing a columnar column.

Meanwhile, in recent years, formwork using paper tubes has been used, and the conventional paper tube formwork has a structure in which a thin film of polyethylene (PE) film is coated on the inner circumferential surface of a spirally wound cylindrical paper tube. The pillars of the building are constructed by placing concrete in the interior of the branch pipe form, and when the construction is completed through curing of the concrete, the branch pipe is dismantled. However, in the case of using such conventional paper tube formwork, since the waterproof polyethylene film coated on the inner circumferential surface of the paper tube is spirally wound, the spiral marks are vividly displayed when the paper tube is dismantled, and it is discarded as waste in a state where it cannot be collected separately. There is a problem that causes contamination. In particular, the current conventional formwork of the form of the pipe can simply produce a building pillar or sculpture of a smooth appearance without a pattern on the surface, and since the spiral marks are severe, there is a disadvantage that does not meet the trend of design importance. In addition, in the case of manufacturing the ground rod using the branch pipe formwork, the ground rod has a higher grounding effect and a greater effect of reducing raw materials.However, the conventional ground tube formwork has a limited ground area due to smooth surface forming. There is a drawback that you have to make a ground rod.

The present invention was developed to improve the above-mentioned conventional problems, the purpose of which is not only environmentally friendly and easy to construct, but also can form a building pillar or sculpture formed with a pattern on the surface, the ground area It is to provide a formwork and a construction method using a paper pipe which can manufacture this large ground rod.

The present invention for achieving the above object, the paper roll formed by rolling the paper in a cylindrical shape, the surface is engraved or embossed and the surface is rolled in a cylindrical shape to form the inner circumference in the inserted state of the paper pipe It provides a formwork using a branch pipe made of a synthetic resin film to be able to cast concrete on the inner circumference. In particular, the sealing member for sealing the lower end of the inner peripheral portion of the synthetic resin film may be further provided so that the concrete poured in the inner peripheral portion of the synthetic resin film does not leak.

In addition, the present invention comprises a large branch pipe formed by rolling paper in a cylindrical shape, a structure formed by rolling paper in a cylindrical shape so as to have a smaller cross-sectional diameter than the large branch pipe, and a small branch pipe installed inside the large branch pipe, and on the surface thereof. The first synthetic resin film is engraved or embossed and inserted into the large branch pipe in a state in which the surface is rolled in a cylindrical shape to form an inner circumferential contact with the inner circumferential surface of the large branch pipe, and is rolled in a cylindrical shape to form an outer circumference of the small branch pipe. It provides a formwork using a paper tube comprising a second synthetic resin film is inserted into the inside of the large branch pipe in a state in close contact with the first synthetic resin film to the concrete. In particular, a sealing member may be further provided to seal the bottom of the inner circumferential portion of the first synthetic resin film and the bottom of the outer circumferential portion of the second synthetic resin film so that concrete poured between the first synthetic resin film and the second synthetic resin film does not leak.

The present invention also provides a first process of preparing a paper tube formed by rolling paper in a cylindrical shape to have a desired cross-sectional diameter, and a second process of rolling the synthetic resin film into a cylindrical shape and inserting it into the inside of the paper pipe while being in close contact with an inner circumference of the paper pipe. And a third process of pouring concrete into the inner circumference of the synthetic film and curing, a fourth process of dismantling the branch pipe after curing of the concrete, and a fifth process of recovering the resin film after dismantling the branch pipe. It provides a construction method using a branch pipe made of a. In particular, the process of installing a sealing member for sealing the lower end of the inner peripheral portion of the synthetic resin film at the lower inner peripheral portion of the synthetic resin film so that the concrete placed in the inner peripheral portion of the synthetic resin film before the third process, and the fifth process Thereafter, a process of recovering the sealing member may be added. Moreover, the synthetic resin film may be used that the desired pattern or letter is engraved or embossed on the surface, in the second process the synthetic resin film is rolled into a cylindrical shape so that the surface forms an inner circumference is inserted into the inner tube do.

In addition, the present invention provides a first step of preparing a large branch pipe formed by rolling paper in a cylindrical shape to have a desired cross-sectional diameter, and a small branch pipe formed by rolling a paper into a cylindrical shape to have a desired cross-sectional diameter of a smaller size than the large branch paper; A second process of installing the small branch pipe inside the large branch pipe, and rolling the first synthetic resin film into a cylindrical shape, inserting the second synthetic resin film into the inside of the large branch pipe while being in close contact with the inner circumferential surface of the large branch pipe; A third process of inserting the inside of the large branch pipe in a state of being in close contact with the outer circumferential surface of the small branch pipe, and placing the concrete between the inner circumference portion of the first synthetic resin film and the outer circumference portion of the second synthetic resin film and curing the fourth process. And a fifth process of separating the small branch pipe and dismantling the large branch pipe after curing of the concrete. , Including a sixth step of recovering the first synthetic resin film and the second resin film to provide a construction method using the branch pipe it is made. In particular, a sealing member for sealing the lower end of the inner peripheral portion of the first synthetic resin film and the lower end of the outer peripheral portion of the second synthetic resin film so that concrete poured between the first synthetic resin film and the second synthetic resin film does not leak before the fourth process. A process between the bottom of the inner circumference of the first synthetic resin film and the bottom of the outer circumference of the second synthetic resin film may be added, and a process of recovering the sealing member after the sixth process may be added. In addition, the first synthetic resin film may be used that the desired pattern or letter on the surface is engraved or embossed on the surface, the first synthetic resin film is rolled in a cylindrical shape so that the surface forms an inner peripheral portion in the third process the large It is inserted inside the branch pipe.

According to the present invention configured as described above, unlike the formwork using the conventional paper pipe coated with the film on the inner peripheral surface of the paper pipe, the synthetic resin film is installed in the form of inserting the paper pipe after the completion of construction to recover both the paper pipe and the film is recycled As a result, it is possible to expect a very favorable effect in terms of environment without causing pollution.

In addition, according to the present invention, since the paper pipe and the film is easily separated after the concrete construction, the construction is simple and does not require the finishing work can be expected to have an advantageous effect in terms of workability and cost.

In addition, according to the present invention, when the ground rod is formed by engraving the surface of the inner circumferential surface of the synthetic resin film, the ground area of the ground rod to be formed is increased due to the increase in surface area, so that the grounding effect is improved, and the amount of concrete required can be saved. It works.

In addition, according to the present invention, when a pillar or a sculpture of a building is molded by embossing or embossing a pattern or a character on the surface of the inner surface of the synthetic resin film, a visual aesthetic effect can be exhibited.

In addition, in the case of forming the building pillar according to the present invention, it is possible to form by concrete pouring without using wood, thereby reducing the cost and manpower, and because the waterproofing of the branch pipe by the synthetic resin film is thin It is possible to maintain a large strength even with a thick paper pipe, which is economically effective.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen.

1 is an exploded perspective view showing a formwork using a paper tube according to a first embodiment of the present invention, Figure 2 is a plan view of the assembled state of Figure 1, Figure 3 is a columnar shape manufactured according to the first embodiment of the present invention It is a figure which illustrated a pillar.

As shown in Figures 1 to 3, the formwork according to the first embodiment of the present invention is applicable to the production of a columnar column, the branch pipe (紙 管 10) and the branch pipe (10) It consists of a synthetic resin film 20 inserted into the inner peripheral surface of the) and a sealing member 30 for sealing the lower end of the synthetic resin film (20).

The branch pipe 10 is formed by rolling paper in a cylindrical shape. For example, the paper is cut to form a cylindrical shape by rolling several layers of paper in a spiral shape. In particular, in the present invention, unlike the conventional paper pipe, the synthetic resin film is not coated at all on the inner circumferential surface of the paper pipe 10, and is made of pure paper only. The branch pipe 10 should have a strength that can withstand the vertical load and horizontal load and the side pressure acting when the concrete is placed during concrete construction, to produce a branch pipe 10 given the appropriate strength according to the construction conditions. When calculating the vertical load of the branch pipe 10, it is preferable to consider the fixed load that adds the weight of the reinforced concrete and the branch pipe, and the live load generated during construction such as equipment load, construction load and impact load. In addition, it is preferable to consider the horizontal load of the branch pipe 10 in consideration of the minimum horizontal load due to impact during construction, construction errors, and the like. In addition, the side pressure acting when placing concrete should consider both the weight of concrete, the casting speed, and the curing speed. For example, the SPCI (Formwork for Concrete) regulation of the American Concrete Institute (ACI) can be referred to. As described above, the inner pipe, the thickness and the length of the paper pipe 10 may be appropriately calculated to manufacture the paper pipe 10 so that the strength required during the construction of the concrete can be safely maintained.

The synthetic resin film 20 may be a film made of polyethylene resin, for example, the pattern (D) or letters are engraved or embossed on the surface. The synthetic resin film 20 preferably has the same height or larger than the height of the branch pipe 10, the pattern (D) is rolled in a cylindrical shape so that the surface is negative / embossed to form the inner circumference (10) It is inserted into the inside of the branch pipe 10 to contact the inner peripheral surface of the. Both ends of the synthetic resin film 20 rolled in a cylindrical shape may be thermally bonded or bonded with an adhesive in an overlapped state, or may be bonded with a tape T in a non-overlapping state. In particular, in the case of bonding with the tape (T), the upper end of the tape (T) may protrude upward than the upper end of the synthetic resin film 20 can be used as a handle. By peeling the tape (T) by holding the upper end of the) it is possible to easily separate the synthetic resin film 20. Meanwhile, when concrete is poured into the inner circumference of the synthetic resin film 20 in a state in which the synthetic resin film 20 is inserted into the interior of the branch pipe 10, the branch pipe 10 and the synthetic resin film 20 are illustrated in FIG. 3. It is possible to form a columnar pillar (P) as shown, and the pattern (D) or letters that are embossed or embossed on the inner circumferential surface of the synthetic film 20 on the outer circumferential surface of the molded columnar pillar (P) Becomes The columnar column P formed in this way may be applied as a pillar or sculpture of a building, ground rods for electric poles and high-voltage wires, and ground rods for lightning rods.

The sealing member 30 may be unnecessary according to the practice of the present invention. In this embodiment, the concrete to be poured during construction is provided to prevent leakage to the outside of the branch pipe 10. In the present embodiment, the sealing member 30 is composed of a bottom plate 31 in close contact with the lower end of the branch pipe 10 and a flange 32 vertically extending from the bottom plate 31, and inside the branch pipe 10. The flange 32 of the sealing member 30 is inserted into the inner circumferential surface side of the synthetic resin film 20 in the state in which the synthetic resin film 20 is inserted, thereby preventing the concrete from leaking through the lower end of the branch pipe 10. The sealing member 30 may be implemented in various ways in addition to the structure according to the present embodiment as long as it can prevent leakage of concrete, and may be applied to slabs, iron plates, or waterproof hard boards.

On the other hand, Figure 4 is an exploded perspective view showing a formwork using a paper tube according to a second embodiment of the present invention, Figure 5 is an assembled state plan view of Figure 3, Figure 6 is a hollow manufactured according to a second embodiment of the present invention The figure illustrates a pillar type.

As shown in Figs. 4 to 6, the formwork of the present embodiment is applicable to the production of hollow pillars, and has a large branch pipe 100 and a cross-sectional diameter smaller than that of the large branch pipe 100. The small branch pipe (200) having, the first synthetic resin film 300 is inserted into the inner peripheral surface of the large branch pipe 100, the second synthetic resin film 400 in close contact with the outer peripheral surface of the small branch pipe (200), and these films (300, 400) Consists of a sealing member 500 to seal the bottom of the).

The large branch pipe (100) and the small branch pipe (200) is formed by rolling paper in a cylindrical shape similar to the branch pipe (100) described in the first embodiment described above, unlike the conventional branch pipe, the synthetic resin film on the inner peripheral surface of the branch pipe (100,200) This is not coated at all and is made of pure paper only. In addition, these large branch pipes 100 and the small branch pipes 200 are provided with appropriate strength according to the construction conditions to have strength to withstand the vertical load and horizontal loads acting during concrete construction and the side pressure acting during concrete pouring Is produced by.

The first synthetic resin film 300 may be a film made of polyethylene resin, the surface (D) or letters are engraved or embossed on the surface. The synthetic resin film 300 is rolled into a cylindrical shape so that the surface of the pattern (D), etc., the negative / embossed to form an inner peripheral portion is inserted into the large branch pipe 100 in a state of being in close contact with the inner peripheral surface of the large branch pipe (100). .

In addition, the second synthetic resin film 400 may also be applied to the same as polyethylene resin. Unlike the first synthetic resin film 300, the surface does not need to be embossed or embossed with letters or letters. The second synthetic resin film 400 is rolled into a cylindrical shape and inserted into the large branch pipe 100 while being in close contact with the outer circumferential surface of the small branch pipe 200.

Both ends of each of the first synthetic resin film 300 and the second synthetic resin film 400, which are rolled in a cylindrical shape, may be thermally bonded or adhesively bonded in an overlapped state as in the synthetic resin film 20 of the first embodiment. In addition, it can also adhere | attach with tape T in the state which does not overlap.

In the state where the first synthetic resin film 300 and the second synthetic resin film 400 is inserted into the large branch pipe 100 as described above, the concrete is poured between the first synthetic resin film 300 and the second synthetic resin film 400. When the small branch pipe 200 in the large branch pipe 100 is located in the empty space, the hollow pillar P 'is formed as shown in FIG. 6. In particular, on the outer circumferential surface of the molded pillar, a pattern (D) or a letter embossed / embossed on the inner circumferential surface of the first synthetic resin film 300 is expressed as it is. It can be an application, and wiring or small devices can be installed inside a hollow interior.

The sealing member 500 may be unnecessary according to the embodiment of the present invention as in the first embodiment. In this embodiment, the concrete that is poured during construction of the concrete is the outside of the large branch pipe 100 and the small branch pipe 200. It is provided to prevent leakage into the interior of the. In the present embodiment, the sealing member 500 is composed of a bottom plate 510 which is in close contact with the lower end of the large branch pipe 100 and the small branch pipe 200 and flanges 520 and 530 vertically extending from the bottom plate 510. In the state in which the first synthetic resin film 300 and the second synthetic resin film 400 are inserted into the branch pipe 100, the flanges 520 and 530 of the sealing member 500 are respectively formed on the inner circumferential surface of the first synthetic resin film 300 and the second synthetic resin. By being inserted into the outer circumferential surface side of the film 400, the concrete is prevented from leaking through the lower end of the branch pipe (100, 200). The sealing member 500 may be implemented in various ways as long as it can prevent the leakage of concrete in addition to the structure according to the present embodiment.

Next, a method of constructing a formwork using a branch pipe will be described based on the above-described embodiment.

First, in order to manufacture the columnar pillar (P) according to the first embodiment is constructed as follows.

As a 1st process, the paper pipe 10 which rolled up the paper and produced it to cylindrical shape to have desired cross-sectional diameter is prepared. As described above, the paper tube 10 is manufactured by cutting the paper in a cylindrical shape by a high-speed rotation method. The inner diameter, thickness, and length of the paper tube 10 are appropriately calculated to satisfy the required strength, and the paper tube having a desired size ( 10) to make.

As a second process, the synthetic resin film 20 is rolled into a cylindrical shape and inserted into the inside of the branch pipe 10 prepared above. The synthetic resin film 20 is brought into contact with the inner circumferential surface of the branch pipe 10 as closely as possible. In particular, when the desired pattern or character is to be expressed on the outer circumferential surface of the columnar column P to be molded, the pattern or character is engraved or embossed on the inner circumferential surface of the synthetic resin film 20. Subsequently, a sealing member 30 for sealing the lower end of the inner peripheral part of the synthetic resin film 20 is installed at the lower end of the inner peripheral part of the synthetic resin film 20.

And as a third process, concrete is poured and cured in the inner circumference of the synthetic resin film 20 installed in the branch pipe (10). At this time, it is preferable to cover the upper end of the branch pipe 10 with rubber or plastic material or the like to protect the branch pipe 10 from moisture in the concrete to be poured.

As a fourth process, after curing of the concrete in the branch pipe 10 is completed, the branch pipe 10 is dismantled. Disassembly of the branch pipe 10 can be easily performed by hand by rotating the branch pipe 10 in the reverse direction of the dried direction and tearing it off. The dismantled branch pipe 10 can be recycled into waste paper.

As a fifth process, the synthetic resin film 20 and the sealing member 30 are recovered to be recycled in the state in which the branch pipe 10 is disassembled as described above.

When the entire process is completed as described above, the construction of the columnar column (P) in which the desired pattern or letter is expressed on the outer circumferential surface is completed.

Next, in order to manufacture the hollow pillar (P ') according to the second embodiment is constructed as follows.

As the first process, as in the construction method of the first embodiment described above, a large branch pipe 100 made by rolling paper in a cylindrical shape to have a desired cross-sectional diameter and a small branch pipe 200 having a desired cross-sectional diameter of a smaller size are prepared. do.

In the second process, the small branch pipe 200 is installed inside the large branch pipe 100.

In the third process, the first synthetic resin film 300 is rolled into a cylindrical shape and inserted into the large branch pipe 100 while being in close contact with the inner circumferential surface of the large branch pipe 100. Similarly, the second synthetic resin film 400 is rolled into a cylindrical shape and inserted into the large branch pipe 100 in a state of being in close contact with the outer circumferential surface of the small branch pipe 200. In particular, when the desired pattern or letter is to be expressed on the outer circumferential surface of the hollow pillar P 'to be molded, the pattern or letter is engraved or embossed on the inner circumferential surface of the first synthetic resin film 300. . Subsequently, the bottom of the inner circumference of the first synthetic resin film 300 and the bottom of the outer circumferential portion of the second synthetic resin film 400 are sealed to prevent the concrete poured between the first synthetic resin film 300 and the second synthetic resin film 400 from leaking. The sealing member 500 is installed between the lower end of the inner circumference of the first synthetic resin film 300 and the lower end of the outer circumference of the second synthetic resin film 400.

In the fourth process, concrete is poured and cured between the inner circumferential portion of the first synthetic resin film 300 and the outer circumferential portion of the second synthetic resin film 400 installed as described above.

In the fifth process, the small branch pipe 200 is separated from the large branch pipe 100 in the state where the curing of concrete is finished, and the large branch pipe 100 can be dismantled and recycled into waste paper.

Finally, in the sixth process, the first synthetic resin film 300, the second synthetic resin film 400, and the sealing member 500 may be recovered and recycled.

Meanwhile, in carrying out the present invention, the surface of the branch pipe 10, the large branch pipe 100, and the small branch pipe 200 may be completely waterproofed, and a film is formed of existing polyethylene (PE) or other synthetic resin. When waterproofing using one coated paper, it is difficult to recycle the paper tube and cause pollution. In the present invention, the base paper of the paper tube is coated with a combination of a small amount of acrylic and paraffin wax, so that the paper is completely adhered to the environmental regulations. Waterproofing can be achieved. If the surface of the paper pipe is finished with a coating material with excellent water repellency, not only can the construction be completed more fully, but it is also more advantageous in regenerating and utilizing the paper pipe as it is after construction is completed.

As described above, the formwork and construction method using the paper tube according to the present invention is simpler in construction than the conventional formwork or construction methods, and can save labor cost, facility cost, construction time, and the like. By embossing and embossing, you can not only produce pillars or sculptures with beautiful surfaces, but also contribute to resource recycling.

In the above described the present invention based on the preferred embodiment, the present invention is not limited to the above embodiment, various modifications by those skilled in the art within the scope of the technical idea of the present invention This is possible.

1 is an exploded perspective view showing a formwork using a paper pipe according to a first embodiment of the present invention.

FIG. 2 is an assembled state plan view of FIG. 1.

3 is a view illustrating a columnar column manufactured according to the first embodiment of the present invention.

Figure 4 is an exploded perspective view showing a formwork using a paper pipe according to a second embodiment of the present invention.

5 is an assembled top view of FIG. 3.

6 is a view illustrating a hollow pillar manufactured according to a second embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: branch pipe 20: synthetic resin film

30: sealing member 100: large branch pipe

200: small branch pipe 300: first synthetic resin film

400: second synthetic resin film 500: sealing member

D: Glyph P: Columnar Column

P ': hollow column

Claims (10)

Branch pipe formed by rolling paper in a cylindrical shape; An intaglio or emboss is formed on the surface, and the surface is rolled into a cylindrical shape to form an inner circumference, and using a branch pipe including a synthetic resin film which allows concrete to be poured on the inner circumference in a state inserted into the interior of the branch pipe. Formwork. The method of claim 1, Formwork using a paper tube further comprises a sealing member for sealing the lower end of the inner peripheral portion of the synthetic resin film so that the concrete poured in the inner peripheral portion of the synthetic resin film does not leak. A large branch pipe formed by rolling paper in a cylindrical shape; A small branch pipe formed of a structure formed by rolling paper in a cylindrical shape so as to have a cross-sectional diameter smaller than that of the large branch pipe and installed inside the large branch pipe; A first synthetic resin film which is engraved or embossed on a surface thereof, the surface is rolled into a cylindrical shape to form an inner circumferential portion, and inserted into the large branch pipe in a state of being in close contact with the inner circumferential surface of the large branch pipe; Formed using a paper tube comprising a second synthetic resin film which is rolled into a cylindrical shape and is inserted into the large paper tube in a state of being in close contact with the outer circumferential surface of the small paper tube so as to place concrete between the first synthetic resin film. . The method of claim 3, A sealing member for sealing the lower end of the inner peripheral portion of the first synthetic resin film and the lower end of the outer peripheral portion of the second synthetic resin film is further provided so that the concrete placed between the first synthetic resin film and the second synthetic resin film does not leak. Formwork using branch pipe. A first step of preparing a branch pipe formed by rolling paper in a cylindrical shape to have a desired cross-sectional diameter; A second step of rolling the synthetic resin film in a cylindrical shape and inserting the inside of the branch pipe; A third process of pouring concrete and curing the inner peripheral portion of the synthetic resin film; A fourth step of dismantling the branch pipe after curing of the concrete; And a fifth process of recovering the synthetic resin film after dismantling the paper tube. The method of claim 5, Installing a sealing member for sealing the lower end of the inner circumferential part of the synthetic resin film at the lower inner circumferential part of the synthetic resin film so that the concrete poured into the inner circumferential part of the synthetic resin film does not leak before the third process; Construction method using a branch pipe further comprises the step of recovering the sealing member after the fifth process. The method of claim 5, The synthetic resin film is used that the desired pattern or letter on the surface is engraved or embossed on the surface, the synthetic resin film is inserted into the interior of the branch pipe in the cylindrical shape so that the surface forms an inner peripheral portion Construction method using branch pipe. A first step of preparing a large branch pipe formed by rolling paper in a cylindrical shape to have a desired cross-sectional diameter, and a small branch pipe formed by rolling paper in a cylindrical shape to have a desired cross-sectional diameter of a smaller size than the large branch pipe; A second step of installing the small branch pipe inside the large branch pipe; Rolling up the first synthetic resin film in a cylindrical state in close contact with the inner circumferential surface of the large branch pipe, and inserting the inside of the large branch pipe, and rolling the second synthetic resin film in a cylindrical shape in close contact with the outer circumferential surface of the small branch pipe. Inserting the inside of the third process; A fourth process of pouring and curing concrete between an inner circumferential portion of the first synthetic resin film and an outer circumferential portion of the second synthetic resin film; A fifth process of separating the small branch pipe and dismantling the large branch pipe after curing of the concrete; And a sixth process of recovering the first synthetic resin film and the second synthetic resin film. The method of claim 8, A sealing member for sealing the lower end of the inner peripheral portion of the first synthetic resin film and the lower end of the outer peripheral portion of the second synthetic resin film so that concrete poured between the first synthetic resin film and the second synthetic resin film does not leak before the fourth process. Installing between the lower end of the inner circumference of the first synthetic resin film and the lower end of the outer circumference of the second synthetic resin film; Construction method using a branch pipe further comprises the step of recovering the sealing member after the sixth process. The method of claim 8, The first synthetic resin film is used that the desired pattern or letter is engraved or embossed on the surface, in the third process the first synthetic resin film is rolled in a cylindrical shape so that the surface forms an inner circumference of the inside of the large branch pipe Construction method using a branch pipe, characterized in that inserted in.
KR1020090055600A 2009-06-22 2009-06-22 Form and construction method using paper tube KR20100137261A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649328A (en) * 2015-03-16 2016-06-08 中国建筑第四工程局有限公司 Fixing method and structure for columnar mould
CN106337560A (en) * 2016-10-10 2017-01-18 中国二十二冶集团有限公司 Template for construction of pre-stress steel strand concrete tower cylinder and construction method
KR20190137396A (en) * 2018-06-01 2019-12-11 주식회사 삼영지관 Construction method pattern of the column using paperboard tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649328A (en) * 2015-03-16 2016-06-08 中国建筑第四工程局有限公司 Fixing method and structure for columnar mould
CN106337560A (en) * 2016-10-10 2017-01-18 中国二十二冶集团有限公司 Template for construction of pre-stress steel strand concrete tower cylinder and construction method
KR20190137396A (en) * 2018-06-01 2019-12-11 주식회사 삼영지관 Construction method pattern of the column using paperboard tube

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