KR20070073022A - Concrete mold for slab and construction method of slab using the same - Google Patents

Abstract

A form for a slab is provided to use for constructing various slab structures regardless of structural design and a construction method of a slab using the form for a slab is provided to shorten a period of construction and to reduce the cost of construction by installing and dismantling easily without any special equipment. The form(10) for a slab contains a rectangular plate(11) installed between a column and a column and provided with plural coupling holes to be coupled to a bracket of a form for a prefabricated column and plural deck plate coupling holes to couple with deck plates put on the lateral corners of the plate, and plural stiffening ribs(12) projected from the bottom of the plate in the length or width direction of the plate. The construction method of a slab using the form for a slab comprises the steps of: installing a form for a prefabricated column on a place for a column of a building; connecting the form for a slab to the pre-installed form for a prefabricated column; putting and coupling the end of a deck plate(300) on two lateral corners of the form for a slab; arranging reinforcing bars for a slab on the form for a slab and the deck plate; placing concrete on the form for a slab and the deck plate and curing the concrete surface; and after curing the concrete surface, dismantling the form for a slab and the deck plate.

Description

Concrete mold for slab and construction method of slab using the same}

The present invention will be described in detail with reference to the following drawings, but these drawings illustrate preferred embodiments of the present invention, and the technical concept of the present invention is not limited to the drawings and should not be interpreted.

1 is a cross-sectional view for explaining a slab manufacturing method according to the prior art.

Figure 2 is a perspective view schematically showing the configuration of the slab formwork according to a preferred embodiment of the present invention.

Figure 3 is a bottom perspective view schematically showing the configuration of the slab formwork according to a preferred embodiment of the present invention.

Figure 4 is a bottom perspective view schematically showing the configuration of the formwork for the slab according to another preferred embodiment of the present invention.

5 is a perspective view schematically showing the configuration of the formwork for slab according to another preferred embodiment of the present invention.

6 is a cross-sectional view schematically showing the configuration of the slab formwork according to another preferred embodiment of the present invention shown in FIG.

Figure 7 is a side cross-sectional view showing a process for constructing a slab using the formwork for the slab according to a preferred embodiment of the present invention.

8 is a perspective view schematically showing the configuration of the formwork for prefabricated pillars employed in the slab construction method according to a preferred embodiment of the present invention.

Figure 9 is a perspective view showing another example of the formwork for prefabricated pillars employed in the slab construction method according to a preferred embodiment of the present invention.

10 is a plan view showing a process of constructing a slab using the formwork for the slab according to a preferred embodiment of the present invention.

11 is a plan view showing a process of constructing a slab using the formwork for the slab according to an embodiment of the present invention.

12 and 13 are cross-sectional views showing a process of constructing a slab using the slab formwork according to a preferred embodiment of the present invention.

14 and 15 are a front sectional view and a side sectional view showing a process of constructing a slab using the formwork for the slab according to another preferred embodiment of the present invention.

16 and 17 is a front and side cross-sectional view showing a slab construction method according to another preferred embodiment of the present invention.

The present invention relates to a slab formwork and a slab construction method using the same, and more particularly, to a slab formwork and slab construction method that can reduce the height of the building by building the slab without a beam.

In general, in a slab construction, a beam is first constructed between pillars, and then a slab is constructed based on the beam. 1 schematically shows a cross section of a beam-slab structure constructed by the most widely used method.

As shown, the formwork 1 is installed between the column and the pillar and the beam is constructed, and the floor formwork is installed and the slab is poured on the basis of the constructed beam. The beam may be reinforced with H-beams (not shown) and various reinforcing bars.

On the other hand, the height of each floor of the building plus the height of the interior space and the thickness of the slab structure. That is, the height of each layer can be reduced as the thickness of the slab structure is reduced. Therefore, even if the building of the same number of floors, the smaller the thickness of the slab structure, the smaller the floor height, the construction cost is reduced.

The thickness H of the slab structure is obtained by adding the thickness H1 of the beam and the thickness H2 of the slab. In order to reduce the thickness H of the slab structure, there may be a method of reducing the thickness H1 of the beam or the thickness H2 of the slab.

For this purpose, a so-called flat plate slab method of placing slabs without a beam is widely used. There are two methods of constructing such a flat plate slab: a conventional method and a method using a so-called table form.

The traditional method is to install a flat formwork connecting the beam and the slab, support the lower part with a circle, and then cast concrete. However, not only does it take a lot of effort and air to install and dismantle the formwork, but it also has to support the lower part with a complex and large number of clubs. Furthermore, when dismantling after construction, there is a problem that a lot of waste materials are generated, which adversely affects the environment.

In view of the above problems, a method of constructing a flat plate slab using a formwork table form manufactured in a batch has been proposed. However, the table form is not only expensive, but also has difficulty in constructing with special equipment. have. In particular, table forms have limitations that can only be applied to standardized construction.

The present invention has been made to solve the above problems, can be applied to the construction of a variety of slab structures irrespective of the structural design, the slab formwork and slab construction using the same can minimize the provision of the lower support, such as copper bar It is an object to provide a method.

Still another object of the present invention is to provide a slab formwork and a slab construction method using the same, which can be easily installed and dismantled, not generated waste materials, and can be continuously recycled.

The slab formwork according to the present invention in order to achieve the above object is to be installed between the pillar and the column is formed slab, a plurality of coupling holes are formed at both ends, the side edge is mounted deck plate mounted on the upper surface A rectangular plate in which a plurality of deck plate engaging holes are formed for coupling; And reinforcing ribs protruding integrally from a lower surface of the plate along a length direction and a width direction of the plate.

According to still another embodiment of the present invention, at one end, a plurality of coupling holes are formed for coupling with a column on which a slab is formed, and the other end is provided with a connection bracket for connection with an adjacent formwork part, and at a side edge thereof, An end form part having a rectangular plate in which a plurality of deck plate engaging holes are formed for joining the deck plate to be mounted, and reinforcing ribs protruding integrally from a lower surface of the plate along a length direction and a width direction of the plate; And a rectangular plate having a connecting bracket for connecting to the formwork parts adjacent to both ends, and having a plurality of deck plate engaging holes formed at the side edges for joining the deck plate mounted on the upper surface, and the length direction of the plate and Slab formwork is provided, including; connecting formwork part having a reinforcing rib formed integrally protruding from the lower surface of the plate along the width direction.

Preferably, the connecting brackets of the adjacent formwork parts are connected to each other by a coupling bolt and a nut or welding.

More preferably the present invention is a side reinforcing member installed in the longitudinal direction on the outer surface of the outermost reinforcing ribs formed in the longitudinal direction of the reinforcing ribs; And a bottom reinforcing member installed to be in contact with the bottom surface of the reinforcing rib across the bottom of the formwork while being suspended from the side reinforcing member.

Preferably, the plate and / or reinforcing ribs are formed by winding or extruding glass fibers, carbon fibers, kevlar or mixed fibers or FRP fibers thereof.

Alternatively, the plate and / or reinforcement ribs may be made of metal.

According to the present invention, a hollow tube is formed therein, the lower end of which is fixed to penetrate the plate, the upper end may further include a plurality of embedding tube extending upwards.

According to another aspect of the invention, (a) installing the formwork for the prefabricated pillar in a position to be a pillar of the building; (b) a rectangular plate having a plurality of coupling holes formed at both ends thereof and a plurality of deck plate coupling holes formed at the side edges thereof, and reinforcing integrally protruding from the lower surface of the plate along the length and width directions of the plate; Connecting both ends of the slab formwork including ribs to the prefabricated pillar formwork through the plurality of coupling holes; (c) mounting and engaging the end of the deck plate onto the side edges of the slab formwork; (d) reinforcing reinforcing bars on the slab formwork and deck plate; (e) placing and curing concrete on the slab formwork and deck plate; And (f) dismantling the slab formwork and deck plate after the concrete is cured. The slab construction method is provided.

Preferably, the prefabricated pillar formwork, a plurality of sub-formwork body is assembled to surround each other by connecting the coupling bracket formed on the connecting end; And a support bracket extending laterally to be connected to the slab formwork at the upper end of the sub formwork body.

More preferably, a plurality of joining holes are formed in the support bracket of the prefabricated pillar formwork, and in the step (b), the fastening bolt is connected to the support bracket of the joining hole formed at the end of the slab formwork and the prefabricated pillar formwork. It is inserted through the formed coupling hole and then coupled with the buried nut.

In addition, in the step (c), the fastening bolt is inserted through the deck plate coupling hole formed in the side edge of the slab formwork and the through hole formed in the deck plate and then coupled to the buried nut.

According to the present invention, a hollow tube is formed therein, the lower end of which is fixed to penetrate the plate, the upper end of which further includes a plurality of embedding tubes extending upwardly, and hanging through the embedding tube By installing the wire for hanging the slab formwork can be supported.

According to another aspect of the invention, (a) installing the formwork for the prefabricated pillar in a position to be a pillar of the building; (b) a rectangular plate having a plurality of coupling holes formed at one end thereof and connected to each other by an adjacent formwork part and a connecting bracket, and having a plurality of deck plate coupling holes formed at side edges thereof; End plate parts having a reinforcing rib formed to protrude integrally from the lower surface of the plate, and both ends are connected by an adjacent formwork part and the connecting bracket and a rectangular plate having a plurality of deck plate coupling holes formed at the side edges; Connecting the slab formwork to the prefabricated pillar formwork, the slab formwork including a connecting formwork part having a reinforcing rib formed to protrude integrally from the lower surface of the plate along a length direction and a width direction of the plate; (c) mounting and engaging the end of the deck plate onto the side edges of the slab formwork; (d) reinforcing reinforcing bars on the slab formwork and deck plate; (e) placing and curing concrete on the slab formwork and deck plate; And (f) dismantling the slab formwork and deck plate after the concrete is cured. The slab construction method is provided.

Then, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

2 and 3 schematically show a formwork 10 for a slab according to a preferred embodiment of the present invention. Referring to the drawings, the slab formwork 10 according to the present invention is a rectangular plate 11 and a reinforcing rib formed to protrude from the lower surface of the plate 11 is installed between the pillar and the pillar of the area where the building slab is formed. And (12).

Preferably, the plate 11 is formed by winding or extruding glass fibers, carbon fibers, kevlar or mixed fibers or FRP fibers thereof, and may be formed in a plurality of layer structures. Alternatively, the plate 11 may be made of a metal such as steel. The length of the plate 11 is preferably set such that it can be installed between the pillar and the pillar, the width of the plate 11 to cover the beam formed between the pillar so that the deck plate can be mounted to the upper edge as described below Is set.

At the end of the plate 11, a plurality of coupling holes 13 are formed to be coupled to the bracket of the formwork pillars to be described later.

In addition, a plurality of deck plate coupling holes 14 for coupling the deck plate to be mounted is formed at the side edge of the plate 11.

The reinforcing ribs 12 may be formed in plural along the longitudinal direction of the plate 11 and / or additionally provided in the width direction of the plate. This reinforcing rib 12 is preferably made of a high strength material such as glass fiber, carbon fiber, kevlar or mixed fiber or FRP fiber or metal, more preferably formed integrally with the plate 11. The reinforcing rib 12 prevents the slab formwork 10 according to the present invention from being bent or broken during installation and construction.

According to another embodiment of the present invention, the slab formwork may be installed in combination with a plurality of formwork parts, such an example is shown in FIG.

Referring to Figure 4, the slab formwork of the present embodiment is composed of the terminal formwork part 20 and the connecting formwork part 30 in the middle of both ends.

The end formwork part 20 is a formwork connected to a column and includes a rectangular plate 21 and reinforcing ribs 22 formed in the longitudinal direction and / or the width direction on the lower surface of the plate as described above. A coupling hole 23 is formed at one end of the terminal formwork part 20, and the other end is provided with a connection bracket 25 for connecting with another adjacent formwork part.

The connecting formwork part 30 includes a rectangular plate 31 as a formwork for interconnecting adjacent formwork parts, and a reinforcing rib 32 formed in a longitudinal direction and / or a width direction on the lower surface of the plate. Both ends of the connecting formwork part 30 are provided with connecting brackets 35 for connecting with another adjacent formwork part. The connecting formwork part 30 may be provided in plurality in accordance with the length of the entire formwork.

Accordingly, as shown, the coupling bolt 41 and the nut 42 are used in a state in which the connecting bracket 25 of the terminal formwork part 20 and the connecting bracket 35 of the connecting formwork part 30 are opposed to each other. Can be interlocked. Of course, the connection between the end formwork part and the connection formwork part can be carried out using conventional means such as welding or the like.

5 and 6 schematically show the configuration of the slab formwork 10 'according to another embodiment of the present invention. Here, the same reference numerals as in the above-described drawings indicate the same components. Formwork 10 ′ according to the present embodiment is further provided with a separate reinforcing means in addition to the reinforcing rib 12.

Specifically, the outer side reinforcing ribs 12 formed in the longitudinal direction is provided with a side reinforcing member 51 in the longitudinal direction. The side reinforcing member 51 is preferably coupled to the reinforcing rib 12 by a fastening member 52 as a square steel pipe.

In addition, the bottom of the formwork 10 ′, that is, the bottom surface of the reinforcing rib 12 is supported by a plurality of bottom reinforcing members 53. The bottom reinforcing member 53 is installed to contact the bottom surface of the reinforcing rib 12 across the bottom of the formwork 10 ', and is suspended from the side reinforcing member 51.

That is, the bottom reinforcing member 53 by the hanging rod 54 that vertically penetrates the side reinforcing member 51 penetrates the bottom reinforcing member 53 and then is coupled to the nuts 55 and 56, respectively. Is installed to hang on the side reinforcing member (51).

The reinforcing means of the above configuration prevents the formwork from being bent or deformed when placing concrete.

The side reinforcement member 51 and the bottom reinforcement member 53 may be preinstalled in the formwork 10 ', or alternatively, the formwork may first be connected to the post and then installed.

Then, a method of constructing the slab using the slab formwork having the above configuration will be described.

First, as shown in FIG. 7, the formwork 100 for a prefabricated pillar is installed at a position to be a pillar of a building. Preferably, the H-shaped steel 200 may be preliminarily installed or installed at a position to be a pillar.

The configuration of the formwork 100 for the pillar is shown in FIG. As shown, the prefabricated pillar formwork 100 is composed of a plurality of sub formwork bodies 101 and 102 that are assembled together to surround the pillar. The surf formwork bodies 101 and 102 may be appropriately set in size and length to correspond to the size of the pillar to be constructed. In this embodiment, the two sub formwork bodies 101 and 102 are shown assembled to face each other.

In this case, the sub formwork body 101 has a cross-sectional shape of the U-shape, the coupling end 103 is formed at the connecting end in the longitudinal direction is coupled to each other by the connecting bolt 104. In addition, at least a portion of the upper end of the sub-die body 101 is connected to the slab formwork 10 and the support bracket 104 for supporting it is formed extending laterally.

A plurality of coupling holes 105 are formed in the support bracket 104, and the coupling brackets 105 support the above-described slab formwork 10 by coupling fastening means thereto.

The prefabricated pillar formwork 100 is made of a high strength material such as glass fiber, carbon fiber, Kevlar or mixed fiber or FRP fiber or metal thereof.

Figure 9 schematically shows the configuration of the formwork for the column 100 'according to another embodiment of the present invention. The prefabricated pillar formwork 100 'of the present embodiment is composed of four sub formwork bodies 111, 112, 113, and 114.

As in the above-described embodiment, coupling brackets 116 coupled to each other by the connecting bolts 115 are formed in the longitudinal direction at each connection end of the sub-die bodies 111, 112, 113, and 114. In addition, at least a portion of the upper end of the sub-die body 111, 112, 113, 114 is connected to the slab formwork 10 and the support bracket 117 for supporting it is formed to extend laterally It is.

A plurality of coupling holes 118 are formed in the support bracket 117, and by coupling the fastening means thereto, the mold 10 for the slab is supported as described above.

In the present specification, the formwork for the prefabricated pillar of a specific configuration is illustrated, but the present invention is not limited thereto, and it should be understood that the formwork for pillars of various structures and coupling methods may be modified.

Returning to FIG. 7, the sub formwork bodies 101 and 102 of FIG. 8 or (111, 112, 113 and 114 of FIG. 9) are assembled at the position where the pillar is to be formed to install the prefabricated pillar formwork 100. To complete. Preferably, the reinforcing bars of various structures for reinforcing the inside of the pillar may be reinforced prior to or simultaneously with the installation of the formwork 100 for the prefabricated pillar. In addition, the H-shaped steel 200 may be pre-installed at the position where the pillar is to be formed, and in this case, the prefabricated pillar formwork 100 is installed to surround the H-shaped steel 200.

Then, the slab formwork 10 is connected to the prefabricated pillar formwork 100 installed in advance. Specifically, as shown, the coupling hole formed in the support bracket 104 of the coupling hole (13 of FIG. 3) and the prefabricated pillar formwork 100 formed at the end of the fastening bolt 120 to the slab formwork 100 ( After inserting through 105 of FIG. 8, it is made by fastening with a buried nut 121. The buried nut 121 is formed to surround all of the screw end of the fastening bolts 120 so that the fastening bolts do not come into contact with concrete, so that the fastening bolts 120 can be smoothly removed during formwork dismantling. Wherein the embedding nut 121 is left embedded in the concrete member.

More preferably, in order to demold the slab formwork 10 after slab curing, it is preferable that the slab formwork 10 is coupled to the lower surface of the support bracket 104 of the prefabricated column formwork 100, but it is necessarily limited thereto. It doesn't happen.

In addition, according to the construction method of the present invention, the slab formwork 10 can be supported in its lower part in a variety of structures. Specifically, as shown in FIG. 7, a pair of first alignment stoppers 130 are disposed across the lower surface of the plate 11 of the formwork 10 at predetermined intervals. The alignment stopper 130 is preferably a strip rod of L-shaped metal or carbon-glass fiber material.

A support bar 131 made of metal is installed across the formwork body between the first alignment stoppers 130. Preferably, the support bar 131 is further provided with a support plate 132 to increase the area in contact with the lower surface of the plate 11 for stable support. Both ends of the support plate 132 are in contact with the first alignment stopper 130 to limit its movement.

A first support pillar 133 is installed and supported at a lower portion of the support bar 131, and a concave bracket 134 corresponding to a shape of the support bar 131 is provided at an end of the first support pillar 133. It is provided so that the support bar 131 can be accommodated and supported stably.

Looking at the example of another support structure shown in Figure 7, the lower surface of the plate 11 is provided with a pair of second alignment stopper 140 across the interval spaced apart. The second alignment stopper 140 is also preferably a strip rod of L-shaped metal or carbon-glass fiber material.

A support bar 141 made of metal is installed across the plate 11 between the second alignment stoppers 140. Preferably, the support bar 141 is further formed with a support plate 142 to increase the area in contact with the lower surface of the plate 11 for stable support. Both ends of the support plate 142 are in contact with the second alignment stopper 140 and the movement thereof is limited.

A second support pillar 143 is installed and supported at a lower portion of the support bar 141, and a support block 144 is provided at an end of the second support pillar 143. Since the support block 144 has a width corresponding to the separation distance between the second alignment stoppers 140, the support block 144 is coupled between the second alignment stoppers 140 to limit its movement.

As will be described later, after curing the concrete, it is possible to separate the slab formwork while dismantling the support columns.

The form of the prefabricated pillar formwork 100 is installed at the position where the pillar is formed as described above, and the formwork 10 for the slab is installed between the prefabricated pillar formwork 100. 10 shows a state in which the slab formwork is installed in the four prefabricated pillar formwork.

The slab formwork 10 may be composed of a single formwork as described above, or may be composed of a terminal formwork (20 in FIG. 4) and a plurality of connecting formwork (30 in FIG. 4).

Then, when the installation of the slab formwork 10 is finished, as shown in Figure 11 and 12, the deck plate 300 is installed.

The deck plate 300 is typically made of a metal material such as steel, and is placed so that its end is mounted on the upper edge of both sides of the slab formwork 10 as shown.

The deck plate 300 is welded to the upper edge of both sides of the slab formwork, or coupling holes (14 in Fig. 2) formed on both sides of the slab formwork 10 for slab and deck plate 300 After passing through the through-holes formed in turn in order to be fixed by being combined with the buried nut (151).

Through the above process, FIG. 11 shows a state in which the slab formwork 10 and the deck plate 300 are installed between four pillars. At this time, the portion that is not covered by the deck plate 300 to cover a separate plate.

According to the present invention, since the slab formwork 10 is sufficiently supported by the supporting means such as the prefabricated pillar formwork 100 and the copper bar, the deck plate 300 mounted thereon need to be supported using a separate support means. There is no. Therefore, since it is not necessary to install a support such as a copper plate in the lower deck plate 300, it is possible to secure a working space to enable the progress of subsequent subsequent processes.

When the installation of the deck plate 300 is finished, reinforcing bar for slab (not shown) is placed thereon. The rebar may be applied in various configurations depending on the size and design of the building.

Then, as shown in FIG. 13, the concrete is poured on the slab formwork 10 and the deck plate 300 and cured. At this time, concrete can also be added to the prefabricated pillar formwork (100 of FIG. 7) provided at the position where the pillar is to be formed.

According to the present invention, all the formwork used after the concrete is cured can be dismantled and recycled. In order to dismantle these formwork, loosen the fastening bolts 120 and 150 and remove the slab formwork 10 for downward. At this time, the fastening bolts 120 and 150 may be easily removed because the contact with the concrete is blocked by the buried nuts 121 and 151. On the other hand, the buried nuts 121 and 151 are left embedded in the concrete.

Then, the dead plate 300 is removed, and then the connecting bolt (104 in FIG. 8) is released to disassemble the prefabricated pillar formwork 100 from the pillar.

Thus, a so-called flat plate slab structure that is finally free of beams can be obtained.

14 and 15 illustrate a state in which the slab is constructed by using the slab formwork according to another preferred embodiment of the present invention. Here, the same reference numerals as in the above-described drawings indicate the same components.

In the slab formwork according to the present embodiment, a plurality of embedding tube (60) is provided on the upper surface of the plate (11). The embedding tube 60 is a tube having a hollow formed therein, the lower end of which is fixed to penetrate the plate 11, and the upper end thereof extends upward. Preferably, the embedding tube 60 has a length such that its upper end portion can be exposed to the upper surface of the slab to be cast.

Preferably, the embedding tube 60 is installed symmetrically to the plate (11). This is to balance the formwork.

A method of constructing a slab by using a formwork for slab having the same configuration as in the present embodiment will be described.

First, as in the above-described embodiment, it is the same to install the formwork for the pillar 100 for the prefabricated position to be the pillar of the building.

Then, both ends of the slab formwork according to the present embodiment is connected to the prefabricated pillar formwork 100, which is also the same as described above.

At this time, in the present embodiment, the slab formwork is not supported by the lower support such as copper, but is suspended by the hanging wire. Specifically, prior to connecting the slab formwork to the prefabricated formwork for pillars 100, a support beam steel 160 is installed thereon. The support beam steel 160 may be installed by being connected between the pillar beams 200 installed in advance. It is installed across the brace member 161 on the support section steel 160, and the slab formwork is suspended to the brace member 161 using a hanging wire or rebar 162.

That is, the both ends of the reinforcing rod 162 is inserted through the through holes formed at both ends of the support member 161 and the buried tube 60 in the plate 11 of the slab formwork in the lower layer is penetrated. The upper and lower nuts 163 and 164 are fixed. Preferably, a thread is formed at both ends of the hanging rebar 162 so that the upper and lower nuts 163 and 164 can be easily coupled and fixed.

As described above, by allowing the slab formwork to be floated in the air, there is no need to install a support such as a copper bar at the bottom thereof, and thus it is possible to further secure a work space thereunder.

Next, the process of pouring and curing concrete after reinforcing rebar is the same as in the above-described embodiment. However, when the concrete is put on the slab formwork, the end of the buried tube 60 is exposed to the upper surface of the concrete.

When demolding the slab formwork after concrete curing, the upper and lower nuts 163 and 164 are released to remove the hanging rebar 162. In this case, the embedding tube 60 remains embedded in the slab concrete.

When the construction of the slab using the slab formwork according to the embodiment of the present invention is completed, it is possible to simply build a slab of the lower layer based on this. A diagram of this is shown in FIGS. 16 and 17. Here, the same reference numerals as in the previous drawings indicate components that perform the same function.

As shown in the figure, once the construction of the slab (S1) of the upper layer using the slab formwork is completed after demolding the formwork is lowered down to install another slab formwork (10 ") in the lower layer. If necessary, additional trenches may be used for flooring.

The slab formwork 10 "of the lower layer is suspended to the upper slab structure S1 using a hanging wire or reinforcing bar 170. That is, the first landfill in the concrete of the already completed upper slab structure S1. Inserting the reinforcing bar 170 through the tube 60 'and penetrating the buried tube 60 "of the slab formwork 10" in the lower layer to pass both ends of the upper and lower nuts 171 and 172. ).

Next, the process of concrete pouring and dismantling of the slabs of the lower layer and the dismantling of the formwork is the same as described above.

Slab formwork of the present invention can be applied to the construction of a variety of slab structures irrespective of the structural design by replacing the conventional table form, it is easy to install and dismantle without any special equipment can shorten the air and reduce construction costs .

In addition, by minimizing the installation of lower supports such as clubs, it is possible to secure a work space under the slab, thereby improving work efficiency.

Furthermore, the slab formwork of the present invention is excellent in durability and can be dismantled and recycled after construction, and it is environmentally friendly since it hardly generates waste materials as compared to conventional methods.

In addition, the formwork for the slab of the present invention can realize the economical and reasonable top-down construction of the floor height saving by the development of the construction method through the linkage of existing 1-way and 2-way form or modular construction method.

In addition, since the height of the ground floor is reduced, the amount of excavation can be minimized, and thus economical and environmentally friendly construction can be achieved.

Claims (21)

It is installed between the pillar and the column is formed slab, a plurality of coupling holes are formed at both ends, the side edge of the rectangular plate is formed with a plurality of deck plate coupling holes for coupling the deck plate mounted on the upper surface; And Formwork for the slab comprising a; reinforcing rib formed to protrude integrally from the lower surface of the plate in the longitudinal direction and the width direction of the plate. A plurality of coupling holes are formed at one end for coupling with the pillar on which the slab is formed, and at the other end, a connection bracket for connecting with the adjacent formwork part is provided, and at the side edges, a plurality of coupling plates for coupling the deck plate mounted on the upper surface are provided. A terminal form part having a rectangular plate having a deck plate coupling hole formed therein, and a reinforcing rib formed to integrally protrude from a lower surface of the plate along a length direction and a width direction of the plate; And A rectangular plate is provided with a connection bracket for connecting to the formwork parts adjacent to both ends and a plurality of deck plate engaging holes for joining the deck plate mounted on the upper surface at the side edge, and the length and width of the plate Formwork for the slab comprising a; connecting formwork part having a reinforcing rib protruding integrally formed from the lower surface of the plate along the direction. The method of claim 2, Forming bracket for slab, characterized in that the connecting brackets of the adjacent formwork parts are connected by a coupling bolt and a nut or welding. The method according to any one of claims 1 to 3, Side reinforcement member installed in the longitudinal direction on the outer surface of the outermost reinforcement rib formed in the longitudinal direction of the reinforcing ribs; And And a bottom reinforcing member installed to contact the bottom surface of the reinforcing rib across the bottom of the formwork while being suspended from the side reinforcing member. The method according to any one of claims 1 to 3, The plate and / or reinforcing rib is formed by winding or extruding glass fibers, carbon fibers, kevlar or mixed fibers or FRP fibers thereof. The method according to any one of claims 1 to 3, Formwork for slab, characterized in that the plate and / or reinforcement ribs made of metal. The method according to any one of claims 1 to 3, A hollow tube formed therein, the lower end of which is fixed to penetrate the plate, the upper end of the slab formwork, characterized in that it further comprises a plurality of embedding tube extending upwards. (a) installing a formwork for a prefabricated column in a position to be a pillar of the building; (b) a rectangular plate having a plurality of coupling holes formed at both ends thereof and a plurality of deck plate coupling holes formed at the side edges thereof, and reinforcing integrally protruding from the lower surface of the plate along the length and width directions of the plate; Connecting both ends of the slab formwork including ribs to the prefabricated pillar formwork through the plurality of coupling holes; (c) mounting and engaging the end of the deck plate onto the side edges of the slab formwork; (d) reinforcing reinforcing bars on the slab formwork and deck plate; (e) placing and curing concrete on the slab formwork and deck plate; And (f) dismantling the slab formwork and deck plate after the concrete is cured; slab construction method comprising a. The method of claim 8, The prefabricated pillar formwork, A plurality of sub-die bodies assembled together to surround the pillar by connecting a coupling bracket formed at the connection end; And And a support bracket extending laterally to be connected to the slab formwork at the upper end of the sub formwork body. The method of claim 9, A plurality of coupling holes are formed in the support bracket of the prefabricated pillar formwork, Slab construction method characterized in that the fastening bolt is inserted through the coupling hole formed in the end of the slab formwork and the coupling hole formed in the support bracket of the prefabricated pillar formwork in step (b) and then coupled to the buried nut. The method of claim 10, Slab construction method characterized in that both ends of the slab formwork is coupled to the lower surface of the support bracket formed on the prefabricated pillar formwork. The method of claim 8, In the step (c), the slab construction method characterized in that the fastening bolt is inserted through the deck plate coupling hole formed in the side edge of the slab formwork and the through hole formed in the deck plate and then coupled with the buried nut. The method of claim 8, At least a pair of alignment stoppers are formed on the bottom surface of the slab formwork to be spaced apart at predetermined intervals, Step (b) is, Installing a support bar between the alignment stoppers; And Supporting the support bar with a support column; Slab construction method further comprising. The method of claim 8, A hollow tube formed therein, the lower end of which is fixed to penetrate the plate, the upper end further comprises a plurality of embedding tube extending upwards, A slab construction method, characterized in that for hanging the slab formwork by installing a hanging wire to penetrate the buried tube. (a) installing a formwork for a prefabricated column in a position to be a pillar of the building; (b) a rectangular plate having a plurality of coupling holes formed at one end thereof and connected to each other by an adjacent formwork part and a connecting bracket, and having a plurality of deck plate coupling holes formed at side edges thereof; End plate parts having a reinforcing rib formed to protrude integrally from the lower surface of the plate, and both ends are connected by an adjacent formwork part and the connecting bracket and a rectangular plate having a plurality of deck plate coupling holes formed at the side edges; Connecting the slab formwork to the prefabricated pillar formwork, the slab formwork including a connecting formwork part having a reinforcing rib formed to protrude integrally from the lower surface of the plate along a length direction and a width direction of the plate; (c) mounting and engaging the end of the deck plate onto the side edges of the slab formwork; (d) reinforcing reinforcing bars on the slab formwork and deck plate; (e) placing and curing concrete on the slab formwork and deck plate; And (f) dismantling the slab formwork and deck plate after the concrete is cured; slab construction method comprising a. The method of claim 15, The prefabricated pillar formwork, A plurality of sub formwork bodies which are assembled to surround the pillar by connecting the coupling brackets formed at the connection ends; And And a support bracket extending laterally to be connected to the slab formwork at the upper end of the sub formwork body. The method of claim 16, A plurality of coupling holes are formed in the support bracket of the prefabricated pillar formwork, Slab construction method characterized in that the fastening bolt is inserted through the coupling hole formed in the end of the slab formwork and the coupling hole formed in the support bracket of the prefabricated pillar formwork in step (b) and then coupled to the buried nut. The method of claim 17, Slab construction method characterized in that both ends of the slab formwork is coupled to the lower surface of the support bracket formed on the prefabricated pillar formwork. The method of claim 15, In the step (c), the slab construction method characterized in that the fastening bolt is inserted through the deck plate coupling hole formed in the side edge of the slab formwork and the through hole formed in the deck plate and then coupled with the buried nut. The method of claim 15, At least a pair of alignment stoppers are formed on the bottom surface of the slab formwork to be spaced apart at predetermined intervals, Step (b) is, Installing a support bar between the alignment stoppers; And Supporting the support bar with a support column; Slab construction method further comprising. The method of claim 15, A hollow tube formed therein, the lower end of which is fixed to penetrate the plate, the upper end further comprises a plurality of embedding tube extending upwards, A slab construction method, characterized in that for hanging the slab formwork by installing a hanging wire to penetrate the buried tube.

Images