KR102095821B1 - Formwork Assembly for Concrete Building - Google Patents

Abstract

The present invention relates to a form assembly for a concrete building with an improved structure which enables the easy separation and assembly thereof, and is structurally sturdy assembled to form a uniform appearance of a column after construction. According to the present invention, the form assembly for a concrete building comprises: a plurality of form bodies having a prescribed vertical length; a plurality of fixing pipes formed in a C-shape and installed to partially encompass the outer surfaces of the form bodies; and a plurality of clamps to couple and fix the plurality of form bodies stacked vertically. The form body includes: an outer housing formed in an L-shaped cross-sectional shape; and an inner housing installed in the outer housing and formed in an arc shape having a prescribed diameter. Four of the form bodies are radially arranged around a foundation reinforcing bar installed on a bottom. A circular concrete placement space is formed by the inner housing.

Description

Formwork Assembly for Concrete Building

The present invention relates to a formwork assembly for a concrete building, and more particularly, to a formwork assembly for a concrete building used to construct a circular column by assembling the formwork to form a cylindrical concrete pouring space.

In general, when constructing a concrete structure, formwork is installed to form a space in the form of walls, columns, and floors inside, and concrete is poured into the space formed through the formwork to cure and then remove the previously installed formwork. Columns and floors are formed.

These formwork are pre-made to have an assembly structure of a shape suitable for the wall, column and floor, and then assembled and used at the construction site, among which the formwork for the circular columns is made of wood, metal and paper Is being used.

The prior art of the formwork for a circular pillar as described above discloses a single-ply semi-circular branch pipe hybrid formwork of Patent No. 111626 and a method of forming a cylindrical structure using the same (hereinafter referred to as 'patent document').

The formwork disclosed in the patent document includes a support part formed in the longitudinal direction of the formwork to support the formwork, and provided at both ends of the support part, and includes a shape retaining part formed along the circumference of the outer part of the formwork to maintain the formwork It includes a metal support, a banding for fixing the semi-circular paper tube with respect to the metal support, and a pair of semi-circular paper tubes, wherein the inner circumferential surface of the semi-circular paper tube is configured to be finished with PET coated paper or OPP coated paper.

However, the above-described paper pipe formwork has a problem in that it is difficult to keep the original shape as it is because the rigidity is weak when used repeatedly, and it is difficult to store it so that the shape is not deformed by external force.

In addition, when using, it is necessary to install a plurality of bandings at predetermined intervals so that the shape of the formwork is not deformed by the pressure of the concrete, and thus there is a problem that it takes a lot of time to assemble and disassemble the formwork.

Therefore, it is required to develop a formwork assembly for a concrete building with improved structure so that the assembly can be easily and structurally rigidly assembled and the exterior of the pillar is uniformly formed after construction.

KR 10-1163026 B1 (June 29, 2012) KR 20-0215303 Y1 (December 19, 2000) KR 10-2001-0102424 A (November 15, 2001) KR 10-2009-0030898 A (2009. 03. 25.) KR 10-2018-0040285 B1 (April 20, 2018) KR 20-0257289 Y1 (November 30, 2001)

The present invention has been devised to solve the problems of the conventional concrete building formwork assembly, and the problem to be solved by the present invention is easy to separate and assemble structurally and robustly, so that the appearance of the pillar after construction is constant. It is to provide a formwork assembly for a concrete structure with improved structure so that it can be formed.

Concrete formwork assembly according to the present invention for solving the above problems, a plurality of formwork bodies having a predetermined length up and down; A plurality of fixing pipes formed in a "c" shape and installed to partially surround the outer surface of the formwork body; And a plurality of fasteners which are fixed by joining the plurality of die bodies stacked up and down, wherein the die body comprises: an outer housing formed in a “a” cross-sectional shape; It is installed on the inside of the outer housing and includes an inner housing formed in an arc shape having a predetermined diameter, and four of the formwork bodies are arranged radially based on the basic rebar installed on the floor, thereby forming circular concrete by the inner housing. Characterized in that the pour space is formed.

And the present invention, while the inner housing is made of an arc-shaped tubular body having a predetermined diameter of 90 °, one end is disposed to protrude a predetermined angle to one end of the outer housing, whereby the other end is inserted into the other end of the outer housing at a predetermined angle Another feature is to be arranged so as to be configured such that the four main formwork bodies are radially arranged and assembled, so that the surfaces where the inner housing abuts and the surfaces where the outer housing abuts are displaced from each other by a predetermined distance.

In addition, the present invention is an upper flange formed to protrude so that the formwork body has a predetermined width horizontally along the upper circumference of the outer housing; A lower flange protrudingly formed to have a predetermined width along the lower circumference of the outer housing; And it characterized in that it further comprises a first and second side flanges of a predetermined width, which are installed to have vertical lengths, respectively, at both ends of the outer housing.

In addition to this, the present invention is characterized in that the first and second side flanges have one side open so that a plurality of fitting holes are inserted at both ends of the fixed pipe to be inserted at predetermined intervals.

And the present invention, the inner housing is a first inner housing supported by the outer housing; And a second inner housing installed along one side of the first inner housing, wherein the second inner housing is installed such that the upper and lower portions protrude upward by a predetermined height from the upper and lower ends of the first inner housing. Another feature.

According to the present invention, it is possible to easily and robustly assemble the formwork by radially assembling the "c" shaped fixed pipes after radially arranging the four formwork bodies, and the assembled one-step formwork is stacked up and down. Next, it is possible to easily bind the upper and lower dies by connecting the fasteners, thereby making it easy to assemble and disassemble the dies.

1 is a perspective view showing an example of a formwork assembly for a concrete building according to the present invention.
2 is an exploded perspective view of a formwork assembly for a concrete building according to the present invention.
3 is a perspective view showing an example of a formwork body according to the present invention.
Figure 4 is a perspective view showing the bottom of Figure 3;
5 is a plan view showing an example of a formwork body according to the present invention.
6 is a plan view showing an example in which the formwork body according to the present invention is assembled.
7 is a view showing an example of a fixed pipe according to the present invention.
8 is a view showing an example in which the fixed pipe according to the present invention is installed.
9 is a perspective view showing an example of a fastener according to the present invention.
Figure 10 is a view showing an example of the upper and lower formwork body is assembled through the clamp according to the present invention.
11 is a view showing another embodiment of the clamp according to the present invention.
12 is a view showing an example in which the upper and lower formwork body is assembled through the fastener according to FIG.
13 is a perspective view showing an example of a foundation formwork installed on the lower part of the formwork assembly for a concrete building according to the present invention.
14 is a perspective view showing an example in which the foundation formwork according to FIG. 13 is installed on the formwork assembly.

Hereinafter will be described in detail in accordance with the accompanying drawings showing a preferred embodiment of the present invention.

The present invention is to provide a formwork assembly for a concrete structure with improved structure so that the exterior can be formed uniformly after construction by being structurally and robustly assembled while being easy to separate and assemble, and the present invention is illustrated in FIGS. 1 and 2. As shown in the formwork body 10, it consists of a fixed pipe 20 and a fixed metal (30).

The formwork body 10 is a component that is assembled and installed in the field to construct a circular pillar.

The formwork body 10 has a predetermined width horizontally along the outer circumference of the outer housing 11 and the outer housing 11 is formed in a "a" cross-sectional shape as shown in Figures 3 and 4 The upper flange 12 formed to protrude so as to be formed, and the lower flange 13 protrudingly formed to have a predetermined width horizontally along the lower circumference of the outer housing 11, while being installed inside the outer housing 11 It is installed in a space spaced between the inner housing 14 and the outer housing 11 and the inner housing 14 formed in an arc shape having a predetermined diameter, and the inner housing 14 is supported through the outer housing 11 It includes a support plate 15 to be provided, and first and second side flanges 16A and 16B of predetermined widths installed at both ends of the outer housing 11 to have vertical lengths, respectively.

At this time, the upper and lower flanges 12, 13 are formed with through holes 12A, 13A having a predetermined diameter that are penetrated up and down at predetermined intervals along the length, and stacked up and down through these through holes 12A, 13A. The pair of formwork bodies 10 are bound and fixed through a fastener 30 to be described later.

In addition, the inner housing 14 is made of a 90 ° arc-shaped tube having a predetermined diameter, as shown in Figure 5, one end is arranged to protrude a predetermined angle (A) to one end of the outer housing 11, and thus By this, the other end is arranged to be inserted into the other end of the outer housing 11 at a predetermined angle A '.

At this time, the other side of the outer housing 11, the other side of the inner housing 14 so as to support the other end of the inner housing 14 at the same time as being assembled at the same time to support one end of the inner housing 14 of the other die body 10 A guide plate 17 having a predetermined diameter corresponding to the side diameter is installed.

When the four formwork bodies 10 are radially arranged and assembled by the configuration of the inner housing 14 as described above, as shown in FIG. 6, the inner housing 14 abuts the contact surface and the outer housing 11 It is configured such that the abutting surfaces are displaced from each other by a predetermined distance (L), whereby the concrete filled in the space formed through the inner housing 14 is not leaked to the outside through the gap where the inner housing 14 abuts each other. Structurally prevented.

In addition, the inner housing 14 is installed along the first inner housing 14A supported by the outer housing 11 as shown in FIGS. 3 and 4 and one side of the first inner housing 14A. It is made of a second inner housing (14B), and the second inner housing (14B) is installed such that the upper and lower ends (14B ', 14B ") protrude a predetermined height upward from the upper and lower ends of the first inner housing (14A) do.

When the four formwork bodies 10 are radially arranged and assembled by the configuration of the inner housing 14 as described above, another one-step formwork assembly 1 is stacked on the one-step formwork assembly 1, Naturally, as the upper end portion 14B 'of the second inner housing 14B is inserted into the lower end portion 14B "of another one-stage formwork assembly 1 positioned at the upper portion, the mutual positions are fixed, and thereby the single stage is fixed. When the formwork assembly 1 is stacked to a predetermined height by using a crane or the like in a state assembled on the ground, each one-stage formwork assembly 1 does not easily move arbitrarily even when it is not fixed through the clamp 30 The safety of work and the convenience of assembly are greatly improved.

On the other hand, the first and second side flanges (16A, 16B) are formed with a plurality of fitting holes (H) at predetermined intervals up and down as shown in Figures 3 and 4, these fitting holes (H) will be described later Both ends of the fixing pipe 20 are inserted and fixed.

At this time, the fitting hole (H) extends toward the side surfaces of the first and second side flanges (16A, 16B) and is formed as a long hole with an open shape on one side, whereby one end of the fixing pipe (20) is fitted to the fitting hole (H). When the fitting is inserted, the both ends of the fixing pipe 20 are easily inserted into the fixing pipe 20 while the nut 23 is assembled while the fitting is inserted through one open side of the fitting hole H, As a result, the time required for the operator to assemble the nuts 23 at both ends of the fixed pipe 20 is shortened.

The four formwork bodies 10 are radially arranged by the configuration of the formwork body 10 as described above, and then combined with each other through a fixed pipe 20 to be described later, the single-stage formwork assembly 1 is assembled, The assembled single-stage formwork assembly 1 is stacked up and down to assemble into multiple layers, thereby forming a cylindrical space of a predetermined diameter in which concrete is poured.

The fixed pipe 20 is a configuration for fixing the four formwork bodies 10 arranged radially.

The fixed pipe 20 is formed in a "c" shape as shown in FIG. 7 and is installed to partially surround the outer surface of the formwork body 10, and the pipe body 21 with threads formed at both ends thereof. , A pair of nuts (22, 23) are respectively screwed to both ends of the pipe body (21).

By the configuration of the fixed pipe 20 as described above, both ends of the fixed pipe 20 are fitted into the fitting holes H of the first and second side flanges 16A, 16B arranged radially as shown in FIG. 8. After being inserted, the first and second side flanges 16A and 16B are fixed to each other through a pair of nuts 22 and 23, whereby two formwork bodies 10 are attached to one end of the fixing pipe 20. As it is fixed, four formwork bodies 10 are fixed by two through one fixing pipe 20.

At this time, the center portion of the pipe body 21 is a fitting hole (H) formed in the first and second side flanges 16A and 16B in another direction that are not fixed with nuts 22 and 23 through both ends of the fixing pipe 20 ), Whereby the formwork body 10 is supported so that it does not move or move.

As shown in Figure 8 so that the center portion of the pipe body 21 can be firmly in close contact with the fitting hole (H), a tension adjusting mechanism 24 for adjusting the tension of the pipe body 21 is further installed In this case, the pipe body 21 and the connecting pipe 21 'having a predetermined length on both ends of the pipe body 21 are formed with threads along the outer surface are further installed so that the pipe body 21 and the connecting pipe 21' are tensioned. Screwed to each other through the adjusting mechanism 24, a pair of nuts 22 and 23 are installed in the connection pipe 21 'in this state, and at least two fixing pipes in a direction crossing each other by such a configuration By assembling (20), the four formwork bodies (10) can be robustly assembled.

Nevertheless, if the four fixing pipes 20 are assembled at different heights in each direction, the formwork body 10 can be assembled in a tight and tight manner as a whole, whereby concrete is leaked even if large internal pressure is applied by pouring concrete. The gap to be formed is not easily formed.

The clamp 30 is a structure in which the formwork assemblies 1 positioned at the upper and lower sides are mutually engaged and fixed when they are installed so as to have a predetermined height by stacking the formwork assemblies 1 of one stage up and down.

As illustrated in FIG. 9, the clamp 30 has an insertion portion 31 having a predetermined length vertically and vertically so as to be inserted through the through holes 12A and 13A of the upper and lower flanges 12 and 13, and one end thereof. An arc having a predetermined diameter while being connected to the upper end of the insertion portion 31 and having a first side pressing portion 32 of a predetermined length downward in a diagonal direction and one end connected to the other end of the first side pressing portion 32 It includes a connecting portion 33 of the shape, and a second side pressing portion 34 having a predetermined length horizontally toward the lower end of the insertion portion 31 while one end is connected to the other end of the connecting portion 33.

As shown in FIG. 10 through the configuration of the fastener 30 as described above, the insertion portion (12A, 13A) in the through holes (12A, 13A) formed in the upper and lower flanges (12, 13) of the die assembly (1) stacked up and down ( 31) is inserted through the bottom from the top, and then rotating the connecting portion 33 around the insertion portion 31 at a predetermined angle, the first side pressing portion 32 is in close contact with the upper surface of the lower flange 13 and At the same time, while the second side pressing portion 34 is in close contact with the bottom surface of the upper flange 12, the upper and lower flanges 12, 13 are fixed in close contact with each other.

When the first and second side pressing parts 32 and 34 rotate the connecting parts 33 so as to be in close contact with the upper and lower surfaces of the upper and lower flanges 12 and 13, respectively, an operator uses a hammer or a hand hammer to connect the connecting parts. The upper and lower flanges 12 and 13 can be fixed by easily rotating the clamp 30 by striking 33 toward the outer side of the formwork body 10.

In addition, when separating the fastener 30, it can be easily rotated in the opposite direction by inserting a chuck (a crowbar) into the connecting portion 33 to release the fixing of the upper and lower flanges 12,13.

In addition to this, the upper and lower flanges 12 and 13 are more firmly adhered to each other through the clamp 30 so that the fixed state is maintained, as shown in FIG. 11, the first end of the second side pressing portion 34 is provided at the other end. The elastic pressing portion 35 having a predetermined length in the diagonal direction toward the side pressing portion 32 may be further provided.

When the upper and lower flanges 12 and 13 are fixed to each other through the clamp 30 through the elastic pressing portion 35, the elastic pressing portion 35 is the upper flange 12 ), The upper and lower flanges 12 and 13 can be kept in a relatively tight contact by the elastic restoring force of the elastic pressing part 35 while being pressed and pressed on the bottom surface.

On the other hand, the foundation formwork 40 may be further installed so that the formwork assembly 1 can be fixedly installed in accordance with the position where the foundation reinforcing bars are to be constructed, as shown in FIG. 12. As shown in the figure, the base plate 41 of a square shape having a predetermined width and a cylinder which is located at the center of the base plate 41 and protrudes upward by a predetermined length so as to be inserted toward the lower end portion 14B "of the second inner housing 14B. It includes a fixed guide 42 of a shape and a fixed bolt 43 of a predetermined length, which is installed in plural along the circumference of the fixed guide 42 and inserted through the through hole 13A of the lower flange 13.

In addition, the base plate 41 includes a plurality of reinforcing bars 44 arranged in a lattice shape so that the fixing guide 42 can be strongly supported.

As shown in FIG. 14 through the configuration of the base formwork 40 as described above, the base formwork 40 is firmly fixedly installed on the floor where the base reinforcing bar is reinforced, and then the formwork assembly 1 of the first stage is transported After being seated on the foundation formwork 40, the nuts are fastened to the fixing bolts 43 to assemble each other firmly, or by assembling the formwork body 10 directly on the formwork 40 to form the body formwork 10 (40).

As described above, the present invention arranges four formwork bodies radially, and then assembles a "c" shaped fixed pipe radially so that the formwork is easily and robustly assembled, and the one-stage formwork thus assembled is stacked up and down. Then, the upper and lower formwork can be easily bound by connecting the fasteners.

In the above, for convenience of description, the drawings showing the preferred embodiments and the components shown in the drawings have been described with reference numerals and names, but this is an embodiment according to the present invention. It should be construed that the scope of the right is not to be interpreted, and that the simple substitution from the description of the invention to a configuration that functions the same as the change to various predictable shapes is within the range that can be changed by a person skilled in the art for easy implementation. You will see it as self-evident.

1: formwork assembly 10: formwork body
11: Outer housing 12: Upper flange
12A: Through hole 13: Lower flange
13A: through hole 14: inner housing
14A: 1st inner housing 14B: 2nd inner housing
14B ': Upper part 14B ": Lower part
15: support plate 16A: first side flange
16B: Second side flange 17: Guide plate
20: fixed pipe 21: pipe body
21 ': Connection pipe 22: Nut
23: Nut 24: Tension adjuster
30: retainer 31: insert
32: first side pressing portion 33: connecting portion
34: second side pressing portion 35: elastic pressing portion
40: foundation die 41: base plate
42: Fixed guide 43: Fixed bolt
44: Reinforcement A, A ': Angle
H: fitting hole L: distance

Claims (5)

A plurality of formwork bodies 10 having a predetermined length up and down;
A plurality of fixing pipes 20 formed in a “c” shape and installed to partially surround the outer surface of the formwork body 10; And
A plurality of fasteners 30 which are fixed by joining the plurality of formwork bodies 10 stacked up and down;
Including,
The formwork body 10,
An outer housing 11 formed in a “a” cross-sectional shape;
An inner housing 14 formed in an arc shape having a predetermined diameter while being installed inside the outer housing 11;
It includes,
A circular concrete pouring space is formed by the inner housing 14 in which the four formwork bodies 10 are arranged radially based on a foundation rebar installed on the floor,
The formwork body 10,
An upper flange 12 protrudingly formed to have a predetermined width horizontally along the upper circumference of the outer housing 11;
A lower flange 13 protrudingly formed to have a predetermined width horizontally along the lower circumference of the outer housing 11; And
First and second side flanges 16A and 16B of predetermined widths installed at both ends of the outer housing 11 to have vertical lengths, respectively;
It includes,
The first and second side flanges (16A, 16B),
One side is open, a plurality of fitting holes (H), which are inserted into both ends of the fixed pipe 20, are formed at predetermined intervals,
The upper and lower flanges (12, 13),
Through holes (12A, 13A) having a predetermined diameter, which are penetrated up and down at predetermined intervals along the length, are formed.
The fastener 30,
A pair of the formwork bodies 10 stacked up and down through the through holes 12A and 13A are bound and fixed,
The fastener 30,
An insertion portion 31 having a predetermined length vertically and vertically to be inserted through the through holes 12A and 13A;
A first side pressing part 32 having a predetermined length downwardly connected to the upper end of the insertion part 31 in a diagonal direction;
An arc-shaped connection portion 33 having a predetermined diameter while one end is connected to the other end of the first side pressing portion 32;
A second side pressing portion 34 having a predetermined length horizontally toward the lower end of the insertion portion 31 while one end is connected to the other end of the connecting portion 33;
Formwork assembly for a concrete structure comprising a.
The method according to claim 1,
The inner housing 14,
While being made of a 90 ° arc-shaped tube having a predetermined diameter, one end is arranged to protrude a predetermined angle (A) to one end of the outer housing 11, whereby the other end is predetermined to the inside of the other end of the outer housing 11 Arranged to be inserted at an angle A ', when four of the formwork bodies 10 are radially arranged and assembled, a surface where the inner housing 14 abuts and a surface where the outer housing 11 abuts a predetermined distance ( L) formwork assembly for concrete buildings, characterized in that configured to be positioned to be displaced from each other.
delete delete The method according to claim 1,
The inner housing 14,
A first inner housing 14A supported by the outer housing 11; And
It consists of a second inner housing (14B) installed along one side of the first inner housing (14A),
The second inner housing 14B,
Upper and lower parts (14B ', 14B ") of the first inner housing (14A) formwork assembly for concrete buildings, characterized in that installed so as to protrude upward a predetermined height than the bottom.

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