KR102648063B1 - Formwork structure for beam construction - Google Patents

Abstract

The present invention relates to beam formwork, which has a lower plate (10) extending in the front and rear direction, and side plates (20) are vertically joined to the left and right ends of the lower plate (10), so that the inside can be filled with concrete. In the formwork for beam construction, which is constructed by providing a space portion (8) and having a U-shaped stirrup (30) fitted upright within the space portion (8),
The lower plate 10 forms upward upright beads 14 on both left and right ends of the bottom 11, and at the upper end of the upright bead 14 is a connecting ring 16 bent to form an acute angle with the upright bead 14. ) is extended, and one or more upright beads 14 and a connecting ring 16 bent to form an acute angle with the upright beads 14 are formed on the inside between the left and right upright beads 14,
The side plate 20 is formed with several horizontal beads 24 protruding inward from the wall 21 toward the space 8, and is spaced apart from the top and bottom of the wall 21, and each horizontal bead 24 is formed to protrude inward from the wall 21 toward the space 8. At the end of the bead 24, a connecting ring 26 is formed that is bent to form an acute angle with the horizontal bead 24, and a bottom 22 is formed to extend inward at the bottom of the wall 21. An upwardly erect bead (24A) is extended at the end of (22), and a connecting ring (26A) is formed at the upper end of the upright bead (24A), which is bent to form an acute angle with the upright bead (24A),
When the side plates 20 are vertically coupled to the left and right ends of the lower plate 10, an acute angle is formed between the both ends of the bottom 11 of the lower plate 10 and the ends of the bottom 22 of the side plate 20. As the slopes of the connecting rings (16) (26A) are aligned with each other by gravity, the connecting rings, the bent portions (18) (28A), and the upright beads (14) (24A) are naturally and tightly coupled to each other. This is to make temporary bonding easier.

Description

Formwork for beam construction {FORMWORK STRUCTURE FOR BEAM CONSTRUCTION}

The present invention relates to a formwork, and particularly to a formwork that is easy to assemble and is structurally strong during beam formwork construction.

The ceiling of a building has a beam formed below the ceiling to increase bearing capacity, and to form the beam, a form into which concrete can be poured is installed.

Formwork methods for beam construction have been greatly developed. In general, the formwork for beam construction has a basic form for delivery to the site, and once the basic form is installed on site, the formwork is completed as additional reinforcement is subsequently placed, and ultimately within the formwork. Concrete is poured.

As shown in FIG. 1, the basic form of the form 100 has side plates 120 erected on both sides of the lower plate 110, and a U-shaped stirrup 130 is integrally attached to the inside thereof. am.

Here, welding is required to combine the U-shaped stirrups 130, so a separate electricity supply and a welder are essential. In welding work, marking is required to adjust the spacing and vertical/horizontal alignment of the U-shaped stirrups 130. There is the inconvenience of having to do it separately, and there are various restrictions such as the need for a skilled worker with the ability to weld during welding work and the need for there to be no other workers around. Moreover, it is difficult to accurately determine whether the welded part has been properly welded, and if the welded part is weak, safety accidents such as pouring of concrete may occur if the concrete is released due to pressure during pouring. In addition, the steel plate (deck) in the welded part is distorted due to thermal deformation, which reduces straightness and significantly reduces workability. There is a vulnerability that holes may be created by welding, and carbon is generated due to welding work and is included in welding fume. The safety and health of workers can be harmed by fine dust, harmful gases, harmful rays, and noise.

Domestic registered patent No. 10-1009753 “Form for beam structure”

Therefore, in constructing a basic form, the present invention allows it to be completed by assembling without separate welding, allows several people to quickly assemble it at the same time when necessary, and also provides structurally strong beam construction. It provides a formwork structure.

The present invention to achieve the above object is provided with a lower plate (10) extending in the front and rear directions, and side plates (20) are vertically coupled to the left and right ends of the lower plate (10), so that the inside can be filled with concrete. In the formwork for beam construction, which is constructed by providing a space portion (8) and having a U-shaped stirrup (30) fitted upright within the space portion (8),

The lower plate 10 forms upward upright beads 14 on both left and right ends of the bottom 11, and at the upper end of the upright bead 14 is a connecting ring 16 bent to form an acute angle with the upright bead 14. ) is extended, and one or more upright beads 14 and a connecting ring 16 bent to form an acute angle with the upright beads 14 are formed on the inside between the left and right upright beads 14,

The side plate 20 is formed with several horizontal beads 24 protruding inward from the wall 21 toward the space 8, and is spaced apart from the top and bottom of the wall 21, and each horizontal bead 24 is formed to protrude inward from the wall 21 toward the space 8. At the end of the bead 24, a connecting ring 26 is formed that is bent to form an acute angle with the horizontal bead 24, and a bottom 22 is formed to extend inward at the bottom of the wall 21. An upwardly erect bead (24A) is extended at the end of (22), and a connecting ring (26A) is formed at the upper end of the upright bead (24A), which is bent to form an acute angle with the upright bead (24A),

When the side plates 20 are vertically coupled to the left and right ends of the lower plate 10, an acute angle is formed between the both ends of the bottom 11 of the lower plate 10 and the ends of the bottom 22 of the side plate 20. As the inclined surfaces of the connecting rings (16) (26A) are aligned with each other by gravity, the connecting rings, the bent portions (18) (28A), and the upright beads (14) (24A) are naturally and tightly coupled to each other. It is characterized by allowing temporary bonding to occur more easily.

The present invention, when manufacturing a basic form, allows it to be completed by assembling without separate welding, allows several people to quickly assemble it at the same time when necessary, and is also structurally strong so that it can be completed by assembling it without separate welding. It has the advantage of preventing shape deformation even under applied pressure.

Figure 1 is a schematic diagram of a formwork for general beam construction;
Figure 2 is a configuration diagram of the formwork 2 for integrated beam construction according to an embodiment of the present invention;
Figure 3 is a diagram showing the coupling relationship between the lower plate 10 and the side plate 20;
4 (FIGS. 4A to 4C) are photographic drawings showing the coupling structure between the lower plate 10 and the side plate 20 using the fixing clip 50 and a detailed drawing of the fixing clip 50,
5 is a view showing various shapes of the horizontal connecting bar 44;
Figure 6 is a configuration diagram of the beam construction form (2A) showing a state in which the size of the form has been changed by additionally combining the unit extension plate 30.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Referring to FIGS. 2 and 3 (FIGS. 3A and 3B), the formwork 2 for beam construction (hereinafter simply referred to as 'formwork') according to an embodiment of the present invention includes a lower plate 10 extending in the front and rear direction. It is provided, and the side plates 20 are vertically coupled to the left and right ends of the lower plate 10, so that a space 8 is provided therein.

Rigidity is provided by forming an emboss M on the bottom portion 11 of the lower plate 10 and the wall portion 21 of the side plate 20.

The lower plate 10 forms upward upright beads 14 at both left and right ends of the bottom 11, and at the upper end of the upright bead 14 is a joint ring bent to form an acute angle with the upright bead 14. 16) is extended, and one or more upright beads 14 and a connecting ring 16 bent to form an acute angle with the upright beads 14 are formed on the inside between the left and right upright beads 14.

The side plate 20 is formed with several horizontal beads 24 protruding inward from the wall 21 toward the space 8, and is spaced apart from the top and bottom of the wall 21, and each At the end of the horizontal bead 24, a connecting ring 26 that is bent to form an acute angle with the horizontal bead 24 is extended. In particular, a bottom part 22 is formed to extend inward at the bottom of the wall part 21, an upright bead 24A is formed to extend upward at the end of the bottom part 22, and an upright bead is formed at the upper end of the upright bead 24A. It forms a connecting ring (26A) that is bent to form an acute angle with (24A).

According to the configuration of the lower plate 10 and the side plate 20 having the above configuration, when the side plates 20 are connected upright to the left and right ends of the lower plate 10, easy connection and firm adhesion are achieved.

That is, when the side plates 20 are vertically coupled to the left and right ends of the lower plate 10, the both ends of the bottom 11 of the lower plate 10 and the ends of the bottom 22 of the side plate 20 correspond to each other. Along the slopes of the acute-angled connecting rings (16) (26A), the inclined surfaces are aligned with each other by gravity, and the connecting rings (16) (26A), the bent portions (18) (28A), and the upright beads (14) ( 24A) are naturally closely bonded to each other, making temporary bonding easier.

As described above, the side plates 20 are joined upright to the left and right ends of the lower plate 10, and the U-shaped stirrup 40 is temporarily coupled to provide a space 8 that can be filled with concrete on the inside. Place it in the space (8) and firmly bind it.

At this time, the lower bar 40a of the U-shaped stirrup 40 is brought into contact with the bent part 18 of the lower plate 10 and the bent part 28A of the side plate 20, and the vertical bar of the U-shaped stirrup 40 (40b) is in contact with the bent portion 28 of the side plate 20. In that state, the U-shaped stirrup 40 is in contact with the bent portions 18, 28A, 28 through the fixing means to ensure a firm connection, and at the same time, the solid connection is maintained by organically combining.

In the present invention, in fixing the U-shaped stirrup 40 upright within the space 8, it has a configuration that can be completed simply and stably through assembly without welding.

That is, referring to FIG. 4 (FIGS. 4a and 4c), the lower bar 40a and the vertical bar 40b of the U-shaped stirrup 40 are fixed through the fixing clip 50, which is formed by bending the iron wire several times as a fixing means. A firm connection is achieved while in contact with the bent portion (18) (28A) (28), and at the same time, the lower plate (10), side plate (20), and U-shaped stirrup (40) are combined with the fixing clip (50). As a result, the entire assembly is integrated and a solid state of connection is maintained.

The fixing clip 50 was specially developed by the applicant of the present invention, and is configured so that a bind portion 56 is integrally formed inside the binding ring portion 52 at both ends via a connecting portion 54. A joint ring that forms an acute angle when connected to the lower plate 10 and the side plate 20 by bending the shape from the inner starting point 52a to the outer end point 52 of (52) into a shape similar to the curved part of an athletics track. (16)(26)Ensure that the end of (26A) is locked.
In addition, the bonding extension portion 52c extending from the outer end point 52b is configured to be positioned close to the inside of the bent portions 18, 28A, and 28 when the bonding is completed, thereby preventing separation from the bonded state. In addition, the bind portion 56 is positioned close to the coupling line UL located on the same line as the bent portion 18 (28A) 28.

This prevents the fixing clip 50 from being distorted with respect to the lower plate 10, the side plate 20, and the U-shaped stirrup 40 when the fixing clip 50 is coupled, thereby maintaining a stable connection. However, it also maintains a solid state.

To explain this in more detail,

As shown in <Table 1>, the joint portions between the lower plate 10 and the side plate 20 that are adjacent to each other are pulled by the combination of the fixing clip 50 and move left to right along an acute angle (inclined surface) (as seen in the drawing). The bottom plate 10, the side plate 20, and the U-shaped stirrup 40 are pulled together in an up and down direction and come into close contact.

In this process, surface contact is made between the connecting rings (16) (26A), which are part a, and the bent parts (18) (28A), which are part b, make close and strong line contact with each other, thereby preventing water leakage from the poured concrete. prevention becomes more effective. And an interview is conducted between the c couple, the upright bead (14) (24A). That is, according to the shape of the lower plate 10 and the side plate 20, as well as the connection by the fixing clip 50, a total of 3 parts are contacted: 2 surface contact points (part a, part c) and 1 line contact point (part b). This is done closely.

As shown above, the joint portion between the lower plate 10 and the side plate 20 is tightly coupled by organic coupling between the fixing clip 50 and the U-shaped stirrup 40. In addition, the U-shaped stirrup 40 is organically joined by the fixing clip 50 to the bent portions 18 and 28, which are not the joint portions between the lower plate 10 and the side plate 20.

Meanwhile, the shape of the part joined between the lower plate 10 and the side plate 20 is not an acute angle. Although it can be made into a shape like “, it is weak in terms of natural close contact and watertightness when temporarily bonded, and has the disadvantage of being weak in organic coupling between the fixing clip (50) and the U-shaped stirrup (40).

Referring to Figure 2, a horizontal connecting bar 44 can be coupled between the left and right side plates 20. The horizontal connecting bar (44) firmly supports the left and right side plates (20) so that they neither spread nor shrink, so that they can withstand the pressure applied during concrete placement. The horizontal connecting bar 44 can be configured in various forms as shown in FIG. 5.

Next, in order to manufacture large beams that deviate from the basic standard products, the method is to cut one or more bottom plates or side plates to the required size, weld them, and add them to the basic manufactured bottom plate or side plate, as shown in <Table 2> below. It has been applied, but it causes a decrease in productivity.

Source: SANGWON STEEL TECH CO., LTD
A: Side plate height extension
B: Extending the width of the lower plate
Source: Korea Institute of Civil Engineering and Building Technology (Development of factory-made RC beam permanent form technology 2019.12.31.)

Accordingly, the present invention provides a formwork (2A) for beam construction so that unit extension plates 30 can be additionally combined according to the size of the beam, as shown in FIG. 6.

Referring to the drawing, the width of the lower plate 10 or the height of the side plate 20 is required by combining one or more unit extension plates 30 between the lower plate 10 and the side plate 20 or at the top of the side plate 20. It can be extended further accordingly.

The unit extension plate 30 forms upright beads 34 extending perpendicularly to both ends of the main body 31 extending in the front and rear directions, and has upright beads 34 at the ends of each upright bead 34 on both sides. It is constructed by extending a joint ring 36 that forms an acute angle and is bent in the same direction. When the unit extension plate 30 is coupled between the lower plate 10 and the side plate 20 or to the top of the side plate 20, the connecting rings 16, 26A, 26 form an acute angle in correspondence with each other as described above. ), the bent parts (18) (28A) (28) (38) are naturally tightly coupled to each other as the slopes are aligned with each other by gravity.

In addition, the size of the U-shaped stirrup 40 coupled to the space 8 is set to correspond to the size of the space 8, and similarly, the overall binding is completed through the fixing clip 50, depending on the size of the beam. Accordingly, when additionally combining the unit extension plate 30, the connection is not only easy but also a solid connection is realized.

As described above, the formwork (2) (2A) for beam construction according to the embodiment of the present invention can be completed by assembly without separate welding, and when necessary, multiple people can quickly assemble it at the same time, In addition, structurally sound beam construction is possible.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be determined by the described embodiments, but by the scope of the patent claims and their equivalents.

(2)--Form for beam construction (8)--Space part
(10)--Bottom plate (11)--Bottom part
(14)--Upright bead (16)--Conjunction ring
(18)--Bending part
(20)--Side plate (21)--Wall part
(22)--Bottom (24)--Horizontal bead
(24A)--Upright bead (26)(26A)--Conjunction ring
(28)(28A)--Bending part
(30)--Unit extension plate (31)--Main body
(34)--Upright bead (36)--Conjunction ring
(38)--Bending part
(40)--U-shaped stirrup (40a)--Lower bar
(40b)--Vertical bar (44)--Horizontal connecting bar
(50)--Fixing clip (52)--Tie ring part
(52a)--Inner starting point (52b)--Outer end point
(52c)--Conclusion extension part
(54)--Connection part
(56)--Bind part

Claims (4)

At the left and right ends of the lower plate 10 extending in the front-to-rear direction, side plates 20 are joined upright to provide a space 8 to be filled with concrete on the inside,
The lower plate 10 forms upward upright beads 14 on both left and right ends of the bottom 11, and at the upper end of the upright bead 14 is a connecting ring 16 bent to form an acute angle with the upright bead 14. ) is extended, and one or more upright beads 14 and a connecting ring 16 bent to form an acute angle with the upright beads 14 are formed on the inside between the left and right upright beads 14,
The side plate 20 is formed with several horizontal beads 24 protruding inward from the wall 21 toward the space 8, and is spaced apart from the top and bottom of the wall 21, and each horizontal bead 24 is formed to protrude inward from the wall 21 toward the space 8. At the end of the bead 24, a connecting ring 26 is formed that is bent to form an acute angle with the horizontal bead 24, and a bottom 22 is formed to extend inward at the bottom of the wall 21. An upwardly erect bead (24A) is extended at the end of (22), and a connecting ring (26A) is formed at the upper end of the upright bead (24A), which is bent to form an acute angle with the upright bead (24A),
When the side plates 20 are vertically attached to the left and right ends of the lower plate 10, an acute angle is formed between the both ends of the bottom 11 of the lower plate 10 and the ends of the bottom 22 of the side plate 20. As the slopes of the connecting rings (16) (26A) are aligned with each other by gravity, the connecting rings, the bent portions (18) (28A), and the upright beads (14) (24A) are naturally and tightly coupled to each other. To make temporary bonding easier,
By fitting the U-shaped stirrup 40 into the provided space 8, the lower base 40a of the U-shaped stirrup 40 bends the bent portion 18 of the lower plate 10 and the side plate 20. It is brought into contact with the part 28A, and the vertical bar 40b is brought into contact with the bent portion 28 of the side plate 20, and in that state, it is coupled with a fixing clip 50 composed of bending the iron wire several times,
The fixing clip 50 is configured so that the bind portion 56 is integrally formed inside the binding ring portion 52 at both ends via the connecting portion 54, but is connected to the outer side from the inner viewing portion 52a of the binding ring portion 52. By bending the shape up to the end point 52 into a shape similar to the curved part of an athletics track, the ends of the connecting rings 16, 26, and 26A form an acute angle when connected to the lower plate 10 and the side plate 20. The fastening extension portion 52c extending from the outer end point 52b is configured to be positioned close to the inside of the bent portions 18, 28A, and 28 in the fully coupled state to prevent separation from the coupled state. In addition, the bind portion 56 is positioned close to the coupling line UL located on the same line as the bent portion 18 (28A) 28, so that the fixing clip 50 is coupled to the fixing clip 50. (50) A formwork for beam construction, characterized in that it prevents distortion of the lower plate (10), side plate (20), and U-shaped stirrup (40) and maintains a stable connection while maintaining a solid state.
delete delete According to paragraph 1,
By combining one or more unit extension plates (30) between the lower plate (10) and the side plate (20) or at the top of the side plate (20), the width of the lower plate (10) or the height of the side plate (20) can be further extended as needed. Let them do it, but
The unit extension plate 30 forms upright beads 34 extending perpendicularly to both ends of the main body 31 extending in the front and rear directions, and has upright beads 34 at the ends of each upright bead 34 on both sides. It is constructed by extending a joint ring 36 that forms an acute angle and is bent in the same direction, so that when coupled to the lower plate 10 and the side plate 20 or to the top of the side plate 20, the joint ring forms an acute angle in response to each other ( 16) Beam construction, characterized in that the bends (18) (28A) (28) (38) are naturally closely coupled to each other by finding the inclined surfaces of (26A) (26) to align with each other by gravity. Formwork for dragon.

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