KR100859160B1 - A slab form system - Google Patents

Abstract

A slab form system is provided to assemble and disassemble a slab form with ease by separating a drop pin from a drop pin to remove a slab panel and a yoke. A slab form system comprises a plurality of supports(2), a drop head(4), a support and removal unit, a yoke, a number of slab panels(8), and a filler(10). The supports sustain a slab form from below at regular intervals. The drop head is installed at the top of the support and provided with a rail groove(22b) formed from the bottom, and a mounting groove formed at the top of the rail groove. The drop head includes a drop pin(30), which is fit to the rail groove of the drop head to fix the position of a drop support member(26). The support and removal unit moves up and down along the drop head. The yoke is supported by the support and removal unit at two ends thereof. The slab panel forms an upper slab together with the yoke. The filler, which has grooves at the two side bottoms, is mounted on the top of the drop head and located in the same direction as the slab panel.

Description

Slab form system

1 is a schematic view showing a construction state of a slab formwork system according to the prior art.

Figure 2 is an exploded perspective view showing an embodiment configuration of a slab formwork system according to the present invention.

3 is an exploded perspective view showing the configuration of a drop head which is an essential part of the present invention;

4A and 4B are a front sectional view, a side sectional view, and a plan sectional view showing an action state of the drop head.

Figures 4c and 4d are cross-sectional views showing the operation of the drop pin in the drop head body for the assembly and demoulding of the yoke on the drop brace member.

Figures 5a and 5b is a front sectional view and a side view showing the configuration of the yoke which is the main part of the present invention.

Figure 6 is a schematic diagram showing a state in which the slab panel is installed on the top of the yoke which is the main part of the present invention.

Figure 7 is a perspective view showing the configuration of a slab panel which is a main part of the present invention.

8 is a sectional front view of the slab panel;

Figure 9 is a bottom perspective view showing the assembled state of the slab formwork system according to the present invention.

Figure 10 is a front sectional schematic view showing the assembled state of the slab formwork system according to the present invention.

Figure 11 is a side cross-sectional schematic view showing the assembled state of the slab formwork system according to the present invention.

Figure 12 is a schematic perspective view showing a state in which the slab formwork system according to the present invention is connected to the wall slab.

* Explanation of symbols for main parts of the drawings

2: support 4: drophead

6: yoke 8: slab panel

10: Filler

The present invention relates to a slab formwork system used to form a slab of a concrete structure, and more particularly, it is possible to form a slab formwork only with yoke material and panels without the need for joists, but also form (form) fastening member The present invention relates to a slab formwork system, which can be assembled and dismantled without necessity, thereby enabling early construction and early demolding of slab formwork and very easy demolding work.

In general, in order to erect concrete structures, the construction of a formwork in advance is pre-built, and after the concrete is poured there, undergoes a process of curing for a predetermined time. In order to build a formwork, a conventionally used euroform made of wood panels or wood and steel. However, wooden panels were frequently damaged due to frequent breakage, and Eurofoam had a long service life but heavy weight, making transportation difficult.

In recent years, long-lasting and light weight aluminum foam is widely used.

As a conventional traditional slab formwork method, as shown in Figure 1, the formwork panel, such as plywood is supported by a joist material (10) made of a lumber, a circular steel pipe or a square steel pipe, and yoke material (20) made of it again Supported by, but the plywood formwork to support the lower portion of the yoke (20) with a copper bar (or also referred to as 'pipe support') (30) to transfer the slab load to the lower, was mainly used as a wall formwork (40) Was used to assemble plywood or systemized unit formwork units such as Euroform. The plywood formwork described above is most commonly used because it is easy to process and assemble, requires less flexibility for design changes, and requires less initial investment.However, it requires a large number of members and a number of copper bars are arranged at the bottom to demould the vertical formwork. And limitations in space for carrying or carrying out subsequent processes.

In addition, the formwork panel and reinforcement are combined to make a panel of a certain size that is easy to handle, and the panel form system formwork that systematically assembles dedicated beams and clubs, and the formwork panel, reinforcement and copper barrel are integrated to install, dismantle, Table foam (flying foam) method for slabs has been proposed that eliminates repetitive work of disassembling and reassembling small parts by transport. The former panelform system formwork improves work efficiency and precision over traditional plywood formwork, but the workforce is highly dependent and the large number of groups placed in the lower space interferes with subsequent processes. The latter slab tableform method can significantly reduce the amount of field work, but can only be applied to simple structures without obstacles in the transport movement path, and when vertical and horizontal parts are cast at the same time, they can be dismantled earlier than horizontal parts. It is difficult to demould and transport the site formwork, and the transportation work depends on the crane, which increases the cost burden due to the medium-term use, and there is a problem in that the initial investment cost is high when the number of the dedicated recovery is not large due to the limitation of adaptability to the design change.

On the other hand, the aluminum (AL) -form system, which is widely used recently, is a method for assembling a unit panel similar to the EURO FORM, and is composed of an AL panel, a tie, and a wedge. The structure can be constructed using only the copper bar, the light weight has the advantage of easy handling.

However, the AL-foam system is fixed by wedge all slab materials at the time of installation, so workability is lowered during material dismantling, and all materials are floated after casting at the time of material dismantling. Since it must be demolded, there is a problem that the risk of work remains, and the speed of dismantling is reduced.

Therefore, the present invention has been proposed to solve the above problems, by forming all the members constituting the slab form to the fitting structure does not require a separate form fastening member (drop) from the drop head drop pin The purpose is to provide a slab formwork system that is easy to assemble and dismantle the slab formwork because the slab panel and the yoke can be dismantled at the same time only by making it work.

In addition, the present invention has no other object to provide a slab formwork system without any damage to the slab panel at the time of demolding the slab formwork by enabling the construction of the slab formwork only with the yoke material and panel.

In order to achieve the above object, the present invention provides a plurality of supports installed at predetermined intervals to support the lower portion of the slab formwork; A drop head installed at an upper portion of each of the plurality of supports, the hollow head having an inner hollow portion, and having a rail groove formed in a vertical direction from a lower portion thereof, and having a seating groove formed at an upper end portion of the rail groove, the seating groove extending more than its width; Support and demolding means inserted into an outer surface of the drop head to move up and down; Yoke is mounted on both ends of the support and the demolding means; And a plurality of slab panels continuously extending thereon in a direction orthogonal to the yoke to form an upper slab surface.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 2 to 12.

The slab formwork system according to the present invention does not require a wire rod, it is possible to connect all the yoke to the yoke to the drop head, the yoke slab panel organically only by the fastening work is excellent construction and at the same time leaving the drop pin from the drop head The panel can be dismantled safely and quickly by only making it work.

In the embodiment of the present invention, as shown in Figure 2, a plurality of supports (2) are provided at predetermined intervals to support the lower portion of the slab formwork; Drop heads (4) installed on the upper portion of each of the plurality of supports (2), the yoke coupling portion is provided on both sides for the support and demoulding of the yoke to be described later; A yoke (6) having one end fitted to and supported by the engaging portion of the drop head (4), and the other end mounted to a wall formwork; A plurality of slab panels (8) which are continuously supported thereon in a direction orthogonal to the yoke (6) to form slab formwork; And grooves 10a are formed at both lower ends of the slab panels 8 so as to be coupled to the upper ends of the drop heads 4 in the direction in which the slab panel 8 is installed, and a filler 10 for preserving the curing curing period of concrete. Include.

As shown in FIG. 3, the drop head 4 is formed with an empty rectangular cross-section column, and a locking window 22a is formed at an upper portion thereof, and a rail groove 22b is formed in a vertical direction by a predetermined height at a lower portion thereof. A body 22 having a seating groove 22c extending at an upper end of the rail groove 22b than its width; A support plate 24 provided at the bottom of the body 22 and bolted to an upper surface of the support 2; A drop brace member 26 fitted to an outer surface of the body 22 to move up and down on the outer surface of the body 22 during assembly and disassembly of the slab formwork; A wing member (28) provided to extend from both sides of the drop brace member (26) so that the end of the yoke (6) is mounted and supported; A drop pin (30) inserted into the rail groove (22b) of the body (22) to fix a position of the drop support member (26); And a stopper 32 installed at an upper end of the body 22 longer than its width to prevent the drop brace member 26 from being separated from the body 22.

Here, the drop pin 30 and the first member (30a) is fitted to the inner rectangular space portion of the body 22; A second member (30b) having a width smaller than the width of the first member (30a) and extending out of the rail groove (22b) from both ends of the first member (30a) and being lifted by the rail groove (22b); A third member 30c connected to one end of the second member 30b and larger than an area of the first member 30a so as to be seated and supported on the bottom of the rim surface constituting the seating groove 22c; ; And a handle 30d connected to the second member 30b and the third member 30c, respectively.

As shown in FIG. 4C, the drop pin 30 configured as described above allows the second member 30b to lift up and down the rail groove 22b while the first member 30a is fitted inside the body 22. do. In addition, when the drop pin 30 is raised upward, the drop brace member 26 rises together, and the operator places the third member 30c of the drop pin 30 on one side of the rail groove 22b (FIG. 4D). In the direction of the left arrow, the second member 30a and the third member 30c are seated on the bottom of the edge of the seating groove 22c to support the drop brace member 26.

The yoke 6 has an I-sided member 42 having fitting grooves 42a formed in the longitudinal direction on both sides thereof, as shown in Figs. 5A and 5B; A square tube cross section member 44 coupled to a lower portion of the I cross section member 42 and having a locking jaw 44a having a “b” shaped cross section at both sides thereof; And a blocking plate 46 installed at an end surface of the rectangular cylindrical end surface member 44 so as to be supported over the wing member 28 of the drop head 4.

The yoke 6 configured as above is made of aluminum or steel. The square tube cross section member 44 is inclined outward by a predetermined angle (θ) to prevent interference with the wing member 28, the upper planar member of the I cross section member 42 is formed with a wedge to be described later. The thickness is thicker toward the center for a secure coupling.

The slab panel 8 includes a plate body 52 formed of a protruding surface 52a having an edge as shown in FIG. 7; A protective cap (54) for preventing the edge of the plate body (52) from being damaged from an external impact; It is installed on the bottom surface of the plate body 52 at a predetermined distance, and when the plate body 52 is coupled to the yoke (6), both side surfaces in order to prevent interference with the locking jaw (44a) of the rectangular cross-section member 44 A reinforcement member 54 having a "c" shape inclined outwardly; The inside of the reinforcing material 54 is joined by welding in a state spaced apart from the surface by a predetermined interval, the end is across the engaging jaw (44a) formed in the square tube end member 44 of the yoke (6) yoke (6) A gap holding plate 56 in the form of a "b" for positioning the plate body 52 in the gap between the yoke and the yoke 6 '; And an entrance hole 57 formed by coupling the reinforcement 54 and the spacing plate 56; Passing through the entry hole 57 is inserted into the fitting groove (42a) of the I-side member 42 includes a wedge member 58 for fixing the plate body 52 to the yoke (6).

The protective cap 54 is made of iron pieces or synthetic resin material, and may have a "C" cross section to enable a book coupling, or may be made of a "B" cross section to protect only the side and bottom of the edge of the plate body 52. .

Looking at the coupling state of the yoke (6) and the slab panel 8 configured as described above, as shown in Figure 6, the slab panel 8 is placed on the upper surface of the I cross-section member 42, the slab panel (8) The slab panel (8) on the yoke (6) by inserting the wedge member (58) into the fitting groove (42a) of the I cross-section member 42 through the entry hole (57) formed at the bottom of the plate body 52 of To prevent flow.

Next, the site construction and demolding process of the slab formwork system according to the present invention will be described in detail with reference to Figures 11 and 12 in conjunction with Figures 4, 6, 8, 9 and 10.

First, a reference bar is drawn on the upper surface of the bottom slab, and the support plate 24 of the drop head 4 and the upper plate of the copper group 2 are bolted. Then, the copper club 2 on which the drop head 4 is mounted is provided on the bottom slab surface at predetermined intervals.

Then, the drop pin 30 and the drop brace member 26 inserted into the rail groove 22b of the drop head body 22 are lifted from the bottom. As shown in FIG. 4D, the drop pin 30 is moved in the direction of the arrow (left side), and the second and third members of the drop pin 30 are formed on the bottom edge surface of the seating groove 22c. The drop brace member 26 is supported by allowing the seats 30a and 30c to be seated.

Next, as shown in Figs. 4A and 9, the blocking plates 46 of the yoke 6 and 6 'are fitted to both wing members 28 of the drop head 4 provided at the predetermined intervals, and then mounted. As shown in Fig. 4B and Fig. 10, the yoke (6) is made by hanging the groove (10a) formed at the ends of the strip member (10, 10 ') to be supported by the engaging window (22a) of the drop head body (22). And strip 10 are positioned in directions perpendicular to each other.

When the yoke 6, 6 ′ is installed in the drop head 4 in the state shown in FIG. 11, the slab panel 8 is placed on the upper surface of the yoke 6, 6 ′ in the orthogonal direction thereof. Support by putting on. At this time, as shown in Figure 6, the "b" shaped cross section holding jaw 44a of the rectangular tube cross section member 44 of the yoke 6 is continuously supported over the gap holding plate 56 of the "b" shaped cross section Let's do it. Then, the wedge member 58 is passed through the entry hole 57 formed between the reinforcement 54 and the spacing plate 56 of the slab panel 8 to the fitting groove 42a of the I-side member 42. By fitting, the slab panel 8 is fixed to the yoke 6 without flowing.

Through the construction process, the upper slab panel is covered on the upper front of the yoke (6) to form the upper slab formwork.

On the other hand, as shown in Fig. 11, the end of the yoke 6 secures the connecting member (not shown) mounted on the top of the wall formwork 90 with a clamp (not shown).

When the construction of the slab formwork is completed through a series of the above process, after the concrete is poured, curing is performed.

After the curing is completed, the demolding process proceeds in the reverse order of the above construction, which will be described in detail below.

First, the wedge member 58 fixing the yoke 6 and the slab panel 8 is separated, and then, as shown in FIG. 4C, the first member 30a of the drop pin 30 is moved in the direction of the right arrow. When it is moved, the drop pin 30 is free to fall on the rail groove (22b). In addition, the drop brace member 26 and the wing member 28, and the yoke 6 and slab panel 8 supported by them are freely dropped at once, and the band member 10 is provided on the bottom of the cured slab. Only the survivors support the concrete slab.

  Then, the slab panel (8) lowered to the bottom of the drop head (4) is lifted by the worker and moved to the upper layer, the copper bar (2) and the drop head (4) for supporting the remaining banding material (10) The demolding of the slab formwork system is completed by dismantling after sufficient surviving period.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, according to the present invention, the following effects are obtained.

First, it is possible to fasten all by simply inserting the drop head, yoke and slab panel constituting the slab formwork system, thereby realizing excellent workability without a separate form fastening member.

Second, it is easy to dismantle the slab formwork system by moving the drop pins up and down, as all of the drop heads, yokes and slab panels are demoulded all at once.

Third, since the slab panel is down only as much as the demolding dimension secured by the drop head, the dismantling work can be safely performed.

Fourth, since it is possible to build the slab formwork only with yokes and panels, there is no need for joists, and there is no damage to the slab panel at the time of demolding the slab formwork.

Fifth, even after demolding of the system member, the strip member can be left as it is, and the number of drop heads and clubs can be reduced.

Claims (11)

delete A plurality of supports installed at predetermined intervals to support a lower portion of the slab formwork; A drop head installed at an upper portion of each of the plurality of supports, the hollow head having an inner hollow portion, and having a rail groove formed in a vertical direction from a lower portion thereof, and having a seating groove formed at an upper end portion of the rail groove, the seating groove extending more than its width; Support and demolding means inserted into an outer surface of the drop head to move up and down; Yoke is mounted on both ends of the support and the demolding means; A plurality of slab panels continuously extending thereto in a direction orthogonal to the yoke to form an upper slab surface; Grooves are formed at the lower ends of both sides so as to span the upper end of the drop head, and are positioned in the same direction as the slab panel, thereby preserving the curing curing period of concrete after demolding the formwork. Slab formwork system comprising a. The method of claim 2, The drophead is A slab formwork system, characterized in that the engaging window for supporting the groove of the strip member is formed on the upper portion. The method of claim 2 or 3, Support and demolding means A drop brace member which moves up and down on the outer surface of the drop head during assembly and disassembly of the slab formwork; Wing members are provided to extend from both sides of the drop brace member, the wing member for supporting the end of the yoke; And Drop pins inserted into the rail groove of the drop head to fix the position of the drop brace member Slab formwork system comprising a. The method of claim 4, wherein The drop pin is A first member fitted to the hollow portion of the drop head; A second member extending out of the rail groove from both side ends of the first member and being lifted by the rail groove; A third member connected to one end of the second member, the third member being seated on and supported by a bottom of an edge surface of the seating groove; And A handle connected to the second member and the third member, respectively. Slab formwork system comprising a. The method of claim 4, wherein A stopper installed at an upper end of the drop head longer than its width to prevent the drop brace member from being separated from the drop head Slab formwork system comprising more. The method of claim 4, wherein The yoke I cross-section member is formed in the longitudinal groove on both sides; A square tube cross section member coupled to a lower portion of the I cross section member and having a locking step extending from both sides thereof; And Blocking plate installed on the longitudinal end surface of the rectangular cylindrical cross-section member so as to be supported across the wing member Slab formwork system comprising a. The method of claim 7, wherein The square tube cross section member is The lower part is inclined outward by a predetermined angle θ to prevent interference with the wing member; The slab formwork system, characterized in that the top planar member of the I cross-section member is formed thicker toward the center. The method of claim 7, wherein The slab panel is A plate body placed on top of the yoke; A reinforcement member having a shape of "c" shaped at a predetermined distance on a bottom surface of the plate body; Spacing plate is installed so as to be spaced apart from the surface of the reinforcement by a predetermined interval to form an access hole, the end is across the engaging jaw formed in the rectangular cross-section member of the yoke so that the plate body is located in the gap between the yoke and the yoke ; And It is inserted into the fitting groove of the I-section member of the yoke through the entrance hole of the spacing plate, the wedge member for fixing the plate body to the yoke Slab formwork system comprising a. The method of claim 9, The plate body is A stepped protruding surface is provided at the edge; A protective cap inserted into the protruding surface of the plate body to prevent the edge of the plate body from being damaged from external impact Slab formwork system comprising more. The method of claim 9, A protective cap of “b” shaped cross section, which is padded on the edge of the plate body and covers the side and bottom of the edge to prevent the edge of the plate body from being damaged from external impact. Slab formwork system comprising more.

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