KR102357050B1 - Column form system using deckplate form - Google Patents

Abstract

The present invention relates to a pre-assembled pole system and a pole installation method that is easy to construct using a deck plate, can reduce construction manpower, and have improved safety. A deck plate having protrusions formed by connecting a plurality of steel plates cut to length, forming a bent groove at a position corresponding to the width of the column in the longitudinal direction of the cut steel plate, and spaced apart from each other. It is characterized in that it is formed by folding, and compared to the prior art, construction is simple and construction manpower can be reduced, safety can be improved because it is possible to prevent safety accidents that may occur during formwork installation, and the roll manufactured in the factory It is possible to provide a column formwork system using a deck plate that can have various widths and heights according to the width and height of the column required for the structure while manufacturing the column form using a steel plate having a constant width, such as a forming steel plate.

Description

Pre-assembled column system with deck plate formwork {COLUMN FORM SYSTEM USING DECKPLATE FORM}

The present invention relates to a pre-assembled pole system having a deck plate formwork, and more particularly, to a pre-assembled pole system with improved safety and simple construction using a deck plate, which can reduce construction manpower.

In general, in a Ramen structure such as a reinforced concrete structure or a reinforced concrete structure, a load applied to a slab is transmitted to a support member such as a beam or a girder, and the load transmitted to the beam or girder is a column transmitted to the ground through the structure. In order to construct such a reinforced concrete structure, columns are installed, each column is connected with a beam, and a slab is installed between the beams.

Recently, in the construction of a building, there is a shortage of manpower in the field and manpower management is difficult, and the need for a technology to reduce manpower is emerging in order to reduce the occurrence of safety accidents during construction.

Conventionally, in the case of column construction, after assembling column reinforcing bars at the site, concrete is poured after constructing a form with Euroform or plywood separately.

Recently, in order to reduce the on-site construction manpower, an economical technology has been proposed to reduce the construction manpower by using a PC column pre-manufactured in a factory. must be enlarged, and there was a problem that the price was high.

In addition, there is a problem in that a separate formwork needs to be installed at the site for the pre-assembled columns installed at the site by reinforcing the reinforcing bars in advance.

Therefore, there is a need for a column formwork that not only requires less construction manpower, but is also easy to manufacture and is easy to install in the field in reinforcing the column and installing the formwork.

Korean Patent No. 10-1490748 (Gold Deck Formwork-Integrated Line Assembling Column)

The present invention is to solve the problems of the prior art described above, and an object of the present invention is to provide a pre-assembled column system with improved safety, which is easy to construct using a deck plate, can reduce construction manpower, and has improved safety.

Another object of the present invention is to provide a column formwork system using a deck plate that can have various widths and lengths according to the width and length of the column required for the structure while manufacturing the column formwork using the deck plate.

A column formwork installed on the floor, wherein the column formwork is formed by connecting a plurality of steel plates formed by cutting a steel plate having a predetermined unit width to a unit length by a length in consideration of the horizontal and vertical size of a desired column, and the cut The steel plate forms a bent groove at a position corresponding to the width of the column in the longitudinal direction, and is formed by folding a deck plate having protrusions spaced apart from each other by a predetermined interval, and the bent grooves are formed after forming the protrusions of the steel plate. Formed by cutting into a shape, or forming a cut-out hole in a steel plate and then folding to form together with the protrusion, and a reinforcing beam fastened to a corner position of the column form formed of the deck plate, and the opposite corner position of the column formwork. It is characterized in that it is provided with an end plate.

According to the pre-assembled column having the deck plate formwork according to the present invention having the above-described configuration, by manufacturing the column form using the deck plate, the construction is simple compared to the prior art in which the column form is installed one by one with Euroform or wood by manpower. and construction manpower can be reduced, and safety accidents that may occur during formwork installation can be prevented, so safety can be improved.

In addition, according to the present invention, it is possible to have various widths and heights according to the width and height of the cross-section of the column required for the structure while manufacturing the column form using a steel plate having a constant width, such as a roll forming steel plate produced in a factory. It is possible to provide a column formwork system using a deck plate.

In addition, according to the pre-assembled column having a deck plate formwork according to the present invention, it is possible to reduce the use of the hoop reinforcing bar of the column by using the protrusion of the deck plate, and at the same time, the reinforcing section steel, the end plate and the reinforcing plate can be used as a substitute for the reinforcing bar of the column. Therefore, it is possible to reduce the amount of reinforcing bars used and reduce the process required for rebar placement.

In addition, the number of deck plates with a certain width can be adjusted to correspond to the height of the column, and the remaining gap can be smoothly applied to column structures having various heights by using a bent steel plate, so the degree of freedom in design and construction of structures is improved. can do it

In addition, in the case of the column formwork system using the deck plate according to the present invention, since the weight of the formwork itself can be configured significantly lighter than that of the prior art, it is not only convenient, Since there is no need to use a large lifting facility, it is easy to install in the field and has the advantage of reducing the installation cost.

1 is a view showing a line assembly column having a deck plate formwork according to the present invention.
Figures 2a to 2c is a view showing the manufacture of the deck plate of the present invention.
Figures 3a and 3c is a view showing a state in which the deck plate manufactured in unit length is connected.
4a and 4b are views showing the reinforcing section steel, the end plate, and the reinforcing material of the present invention.
Figure 5a and Figure 5b is a view showing a state in which the reinforcement beams, etc. are installed in the column form of the present invention.
6a to 6c is a view showing a post formwork by a pair of deck plates of the present invention.
7a to 7g are views sequentially showing the installation of the column formwork according to the present invention.
8 is a view showing a column formwork according to another example of the present invention.
Figures 9a to 9c is a view showing a state before the installation of the deck plate in Figure 8.
10a and 10b are views showing the manufacturing state and the state after the production of the column form of Figure 8.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the pre-assembled column system having a deck plate formwork according to the present invention as an embodiment.

<Example 1>

As shown in Figures 1 to 7g, the pre-assembled column system having a deck plate formwork according to the present invention is characterized in that it is formed using the deck plate (10).

The pre-assembled pillar system (1) according to the present invention is formed using a steel plate having a predetermined unit width (w). The steel plate is, for example, a steel plate that has a certain width manufactured by roll forming, etc., is formed long in the longitudinal direction, and can be cut and used by a user considering the cross-section of the column desired by the user. In general, the deck plate is manufactured by folding a steel plate of a certain width, so when the length of the deck plate is long in the longitudinal direction of the column, it is difficult to accommodate the change according to the cross-sectional size of the column. Therefore, without matching the length direction of the deck plate and the height direction of the column, the length of the deck plate corresponds to the cross-sectional size of the column, and a plurality of deck plates with a certain width are installed to approximate the height of the column. Constructed in a way that matches

As shown in Fig. 2b, the column formwork cuts a steel plate having a predetermined unit width (w) by a desired length (l) and uses it as a unit length. The length (l) corresponds to the sum of the width (a) of the column and the length (b) of the column. Accordingly, a column formwork system using a deck plate that can have various cross-sectional sizes according to the horizontal and vertical length of the column required for the structure while manufacturing the column form using a steel plate having a certain width, such as a roll forming steel plate manufactured in a factory. can provide

As described above, the deck plate 10 having a predetermined width w and formed by folding a steel plate cut by a unit length l is formed by connecting a plurality of them. At this time, the height of the pillar becomes a length corresponding to n × w by connecting a plurality of predetermined width w.

A bending groove 13a is formed in the cut steel plate at a position corresponding to the width of the column in the longitudinal direction. The bent groove 13a may be formed by cutting the protrusion 14 of the deck plate in a V shape. In addition, as shown in FIG. 2B , the bent groove 13a may be formed together with the protrusion 14 when the folded protrusion is formed after the cut-out hole 13 is previously formed in the flat steel plate. The protrusion 14 functions as a hoop of the column.

As described above, the deck plate 10 formed by being cut to a unit length is connected to the adjacent deck plate, at the connected portion at this time, as shown in FIG. 3a, at the end of the protrusion 14 of the deck plate. By forming a bending projection (14a), the bending projection (14a) is configured to surround the projection (14) of the adjacent column deck plate so that the adjacent deck plates are fastened or point-welded to be connected.

Here, not limited to the example of Fig. 3a, as shown in Fig. 3c, spot welding at the butt portion at both ends of the deck plate (see (a) of Fig. 3(c)), or bending one end again to fit the bent part (see (b) of FIG. 3(c)), or form a bending protrusion similar to FIG. 3a (see (c) of FIG. 3(c)), or bent in opposite directions It is possible to connect the adjacent deck plates to each other by spot welding (refer to (d) of FIG. 3(c)) by putting the parts together.

The pre-assembled column system 1 is formed by folding the deck plate 10 having a protrusion 14 spaced apart from each other and a bent groove 13a formed at a bent position.

The pre-assembled column system (1), as shown in Figure 6a, is made of a pair of the deck plates (11, 12) formed by bending, the pair of deck plates are arranged to face each other, the column formwork is configured to achieve

The deck plates 11 and 12 are bent at a right angle at the position of the bending groove 13a, and the angle Φ formed by the bending groove is an angle greater than a right angle, for example, in the range of 100° to 150°. It is preferable to be

By configuring the angle of the bending groove (13a) to be 100° or more, as shown in part A of FIG. 6a, a gap is formed between the projections of the deck plate bent at a right angle when the deck plate is folded at 90° Since the concrete can be filled even between the protrusions of the deck plate through the gap when pouring concrete to the column, the concrete cannot be tightly filled by the protrusions of the deck plate and voids can be prevented from occurring.

As described above, the pre-assembled column using the column deck plate having the protrusion formed along the height direction of the column is arranged in a reinforcing beam along the height direction of the column in order to reinforce the load acting on the column, for example, a letter A long reinforcing section steel 21 formed of a section steel is installed.

Reinforcing beams play the role of pillars and support the deck plate formwork. The protrusion of the deck plate is used as a band reinforcement (hoop) of the column, which is the shear reinforcement of the column.

As shown in Figures 4a to 5b, the reinforcing section steel 21 is fastened to the edge position of the column formwork formed of the deck plates 11 and 12, and the end plates 22 and 22' are the column formwork. is fastened to the opposite edge position of the pole, that is, to the end of one side of the pillar.

The reinforcing section steel 21 is formed to be bent in a L-shape, and is configured to abut against the protrusion 14 at both sides of the column when the deck plates 11 and 12 are bent in the bending groove.

The reinforcing section steel 21 and the end plates 22 and 22' may be installed in the column formwork 1 after the deck plates 11 and 12 are folded, but as shown in Figs. 4a and 4b, the After installing by spot welding in advance at both ends of the deck plates 11 and 12 and the position of the bending groove 13, the deck plate may be folded and installed.

In addition, in order to reinforce the shear in preparation for a large load in the column formwork 1, a reinforcing material 23 corresponding to the hoop muscle of the column may be disposed. The reinforcing member may be disposed to connect the reinforcing section steel and the end plate. The reinforcing material may be formed in the shape of a steel strip 23 , or may be formed in a shape of a truss reinforcing bar 23 ′.

It is preferable to form by folding the deck plate after installation by a method such as welding to the reinforcing steel and the end plate before bending of the deck plate 10 .

A main reinforcing bar (2) and a tie bar (3) for reinforcing are disposed in the reinforcing material.

The reinforcing main reinforcing bars 2 are spaced apart from each other at regular intervals and fastened to the reinforcing material along the longitudinal direction of the column form, and the tie bar 3 is fastened to the reinforcing main reinforcing bar in the form of hooks.

The column is a closed square, and it is difficult to assemble the prefabricated column with the formwork at one time. Accordingly, a pair of diagonal end plates 22 and 22', as shown in FIGS. 6a and 6b, are welded to the two end plates so as to be made in the form of an A-shaped steel.

In this embodiment, for the convenience of assembling and manufacturing a pair of deck plates, as shown in FIGS. 6A and 6B, the end plates 22 and 22' are arranged to protrude outward from the deck plate. . By arranging the end plates to protrude outward, a slight gap occurs in a portion of the end plate when a pair of the deck plates are disposed to face each other, and a welder is inserted through the gap to insert a pair of the formwork It can be connected by welding a L-shaped or L-shaped frame, which is the half shape of a prefabricated column with

Here, the ends of the end plates 22 and 22' are cut obliquely, inserting the tip of a spot welder or a CO2 automatic welding machine in the cut part, and welding while moving along the longitudinal direction of the column to have the formwork It can be manufactured in the form of reinforcing steel (a-shaped steel) by easily welding and connecting the end plates located on both ends of the half-shaped prefabricated column.

The column form, which is formed in the half shape 11 and 12 of the pre-assembled column having a pair of the formwork, is provided with an external bent iron plate 30 . The external bent iron plate 30 is a half-shaped contact portion of a pre-assembly column having a pair of dies disposed opposite to each other, that is, a pair of opposing end plates 22 and 22' as described above are L-shaped. It is arranged to surround the outside of the part to be fastened with.

The pre-assembled pillar system 1 configured as described above is installed standing up on the floor, and the base portion 40 is installed in advance at a position where the pillar formwork is installed. The base part 40 fixes the base part 40 made of an iron angle, such as a rather large A-shaped steel, by an anchor or the like.

The column formwork 1 is erected on the base part 40, and the reinforcement beams and the end plates 22 and 22' of the pre-assembled column system erected at the four corners of the column formwork are installed in the column formwork. It protrudes from the lower end of the lower side and is fastened to the base part, and the base part supports and fixes the line assembly pillar having the formwork.

At this time, the pillar formwork, as shown in Figure 5a, it is preferable that the projection 14 of the deck plate (11, 12) is arranged so as to be positioned upward. By positioning the protrusion 14 upward, when concrete is poured into the columnar formwork, the concrete is filled tightly without creating a gap at the corner of the protrusion adjacent to the bent portion of the protrusion or by the bending protrusion 14a. can

At the upper end of the post formwork, a support part 50 for connecting beams is installed.

The supporting part 50 for connecting the beams is installed in a portion connected to the beam formwork, and the beam formwork connecting plate and the deck connecting plate are bent to each other.

On the other hand, the construction method of the pre-assembled column system (1) using the deck plate of the present invention having the above-described configuration will be described.

The method for installing a post formwork using a deck plate according to the present invention is to first provide a deck plate (10).

In the present invention, in order to provide the deck plate 10, first, a steel plate having a predetermined unit width (w) is cut to a unit length (l) as much as the horizontal and vertical lengths (a, b) of the desired column.

Then, the steel plate is folded every predetermined length to form the protrusion 14 and then cut in a V shape to prepare a deck plate having a bent groove 13a. At this time, it is also possible to provide a deck plate in which a folding groove is formed by forming a cut-out hole for each predetermined length in the steel plate.

Then, a plurality of deck plates are connected.

Then, a reinforcing section is arranged around the bent groove, and an end plate is arranged at the edge end position of the deck plate, and then a reinforcing material connecting the reinforcing section and the end plate is arranged.

Then, bending at the position where the cut-out groove is formed, connecting the main reinforcing bars to the reinforcing material, and placing the tie reinforcing bars in the reinforcing main reinforcing bars.

Then, a pair of deck plates are arranged to face each other, and an external bent iron plate is installed to cover and support the deck plate and the protruding end plate from the outside, which are arranged opposite to each other, pre-assembled column system ( 1) is completed.

The completed pre-assembled pillar system 1 is installed at the pillar installation position. To this end, as shown in FIG. 7A , first, the dowel bar 4 is pre-installed with a size slightly smaller than the size of the pillar on the floor where the pillar is to be installed. Here, the dowel bar 4 is installed so as to be as close as possible to the main reinforcing bar for reinforcing in consideration of the position of the reinforcing main reinforcing bar 2 of the pre-assembled column system to ensure the continuity of the reinforcing bars of the column.

Then, the base part 40 is installed to accommodate the dowel bar and the column form inward. At this time, the base part 40 is manufactured by being integrated with the pre-assembled column in a factory by fixing the end plate and the reinforcing beam of the column formwork. At this time, the form tie 6 may be further installed in consideration of the lateral pressure expected when pouring concrete on the column formwork.

After the pre-assembled pillar system (1) is erected and installed, the beam formwork is connected to the supporting part (50) for connecting the beams installed integrally at the factory in advance at the upper end of the pre-assembled pillar system. A plate 101 for connecting a beam protruding from the beam form 100 is connected to the supporting part 50 for connecting the beam, and is configured to fill the gap between the beam and the column (see FIG. 7e ). Here, a plurality of beams connected to the pillars are provided with a plate 102 for interpolation connecting between the beams to connect the pillars and the plurality of beams.

Then, the construction of the structure is completed by pouring concrete into the column formwork.

As described above, according to the column formwork system using the deck plate according to the present invention, by manufacturing the column formwork using the deck plate, the construction is simpler and easier than the prior art of installing the column formwork one by one with Euroform or wood by manpower. Manpower can be saved and safety can be improved because it is possible to prevent safety accidents that may occur during installation of the column formwork.

<Example 2>

Hereinafter, a columnar formwork 1' according to a second embodiment of the present invention will be described with reference to FIGS. 8 to 10b.

In the present embodiment, the same reference numerals are assigned to the same components as in the first embodiment, and overlapping descriptions are omitted.

The pre-assembled column system 1 according to this embodiment is different from the configuration of the first embodiment in that it is manufactured by assembling the deck plate after assembling the inside of the column first.

As shown in Figure 8, the line assembly column system (1') according to this embodiment is to first assemble the internal configuration of the deck plate (11, 12).

The pre-assembled column system 1 ′ includes four reinforcing beams 21 , a reinforcing material 23 , and a reinforcing main reinforcing bar 2 .

The reinforcing section steel 21, unlike the first embodiment, is disposed at the positions of the four corners of the column formwork. Unlike the first embodiment, the reinforcing member 23 is disposed between the reinforcing beams 21 and is configured to connect the reinforcing beams.

In addition, the reinforcing main reinforcing bars (2) are spaced apart from each other at regular intervals and fastened to the reinforcing member along the longitudinal direction of the column formwork. A part of the reinforcing main reinforcing bar (2) is connected to be constrained by a cross-type tie reinforcing bar (3').

A weld iron wire 60 may be installed on the outside of the reinforcing steel 21 . Through the weld iron wire 60, the reinforcing section steel 21 can be easily spot welded to the protrusions 14 of the deck plates 11 and 12.

The pre-assembled column system 1 ' according to this embodiment configured as described above is, as shown in FIG. 9c, first after completing the assembly and production of the internal configuration of the column formwork, as shown in FIG. 10a, The deck plates 12 and 11 may be sequentially welded to the reinforcing steel 21 through the weld iron wire 60 from the outside to be fastened.

This embodiment only clearly shows a part of the technical idea included in the present invention, and variations and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification of the present invention are It is obvious that all are included in the technical spirit of the present invention.

1: Pre-assembled column system
10, 11, 12: deck plate
21: reinforcing steel
22: end plate
23: stiffener
30: external bent iron plate
40: base part
50: support for beam connection

Claims (11)

As a columnar form installed on the floor,
The column formwork is formed by connecting a plurality of steel plates formed by cutting a steel plate having a predetermined unit width to a unit length by a length in consideration of the horizontal and vertical size of the desired column,
The cut steel plate is formed by folding a deck plate having protrusions formed by forming a bent groove at a position corresponding to the width of the column in the longitudinal direction and spaced apart from each other by a predetermined interval,
The bent groove is formed by cutting a V-shape after forming the protrusion of the steel plate, or forming a cut-out hole in the steel plate and then folding and forming it together with the protrusion,
Reinforcing beams fastened to the corner positions of the column formwork formed of the deck plate, and an end plate fastened to the opposite corner position of the column formwork,
Connecting the reinforcing steel and the end plate, pre-assembled column system having a deck plate formwork, characterized in that it further comprises a reinforcing material formed of a steel strip or truss reinforcing bar.
The method of claim 1,
The deck plate formed by being cut to a unit length is a prefabricated post system having a deck plate formwork, characterized in that it is fastened or connected by point welding by forming a bending protrusion at the end of the protrusion with the adjacent deck plate.
The method of claim 1,
The angle formed by the bending groove is formed in the range of 100° to 150°, and when the deck plate is folded to 90°, a gap is formed between the protrusions of the deck plate. .
delete The method of claim 1,
Reinforcing main reinforcing bars arranged at regular intervals and fastened to the reinforcing material along the longitudinal direction of the column form;
Line assembly column system having a deck plate formwork, characterized in that it further comprises a tie reinforcing bar for fastening the main reinforcing bar for reinforcing in an oblique direction. The method of claim 1,
The end plate is arranged to protrude outwardly from the deck plate,
A pair of the column deck plate is disposed to face each other,
Prefabricated post system having a deck plate formwork, characterized in that it further comprises an externally bent iron plate for fixing and supporting the deck plate and the protruding end plate from the outside disposed opposite to each other. According to claim 1, wherein the deck plate is pre-assembled column system having a deck plate formwork, characterized in that the protrusion is arranged to be positioned upwardly in a L-shape so that the concrete is tightly filled in the column. The method of claim 1,
Pre-assembled post system having a deck plate formwork, characterized in that it is fixed to the floor, and fixes the columnar form at the lower end of the columnar formwork, and comprises a base part for supporting the columnar formwork which is erected. The method of claim 1,
Pre-assembled post system having a deck plate formwork, characterized in that it has a support for connecting a beam installed in a portion connected to the beam form at the upper end of the column formwork. The method of claim 1,
The pair of deck plates are disposed to face each other,
Inside a pair of deck plates disposed opposite to each other, reinforcing beams disposed at the four corner positions of the pillars, a reinforcement connecting between the reinforcement beams, and spaced apart from each other are disposed along the longitudinal direction of the pillar formwork. Line assembly column system having a deck plate formwork, characterized in that it comprises a reinforcing main reinforcing bar fastened to the reinforcing material. 11. The method of claim 10,
A pre-assembled column system having a deck plate formwork, characterized in that the weld iron wire is fastened to the outside of the reinforcing section steel, and the weld iron wire is welded to the protrusion of the deck plate.

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