KR100609500B1 - Apparatus for fixing temporary-mold, using iron-bar - Google Patents

Abstract

The present invention relates to a temporary material fixing device using a reinforcing bar, and to install a temporary material such as a plywood support using only inexpensive raw materials, and to simplify the construction work.

Temporary material fixing device using a reinforcing bar according to the present invention, the bar 31 is provided with a projection (31a) at a predetermined interval on the outer circumferential surface and the reinforcement 31 is partially embedded in the concrete structure; A fastening plate 120 slidably coupled to at least one circumference of the reinforcing bar and supported by the concrete structure; A fastening plate holder 130 for assembling the fastening plate onto the rebar; The clamp 140 is fixed to the rear reinforcing bar of the captive plate holder to prevent separation of the captive plate holder and the captive plate assembly.

Temporary Material, Laminated Wall Support, Reinforcing Bar, Fastener, Fastener Nut, Clamp

Description

Apparatus for fixing temporary-mold, using iron-bar}

1 is a perspective view of a temporary material fixing device using reinforcing bars according to the present invention.

Figure 2 is a modified example of the temporary material fixing device using a reinforcing bar according to the present invention.

Figure 3a and Figure 3b is another modified example of the clamp applied to the temporary material fixing device using the rebar according to the present invention, respectively.

Figure 4 is a perspective view of a temporary material fixing device using a rebar according to the present invention applied to the plywood support.

Figure 5 is a side view of a temporary material fixing device using a rebar according to the present invention applied to the plywood support.

6 is an installation process diagram of the plywood support to which the temporary material fixing device using the reinforcing bar according to the present invention is applied.

Figure 7a and Figure 7b is a side view of a state in which the temporary material fixing device using the reinforcing bar according to the present invention is applied to the retaining wall for both side walls.

8 is a perspective view of a temporary material fixing device using a reinforcing bar according to the present invention is applied for an earth anchor.

<Description of Signs for Main Parts of Drawings>

100: fixing device, 110: rebar

120: captive plate, 130: captive plate holder

131: holder body, 132: tightening nut

140: clamp

The present invention relates to a temporary material fixing device using a reinforcing bar, and more specifically, it is possible to firmly fix the temporary material such as plywood support using only low-cost material reinforcement, and to construct a temporary construction material for concrete structures through a simple operation. The present invention relates to a temporary material fixing device using reinforcing bars.

In general, in the construction of concrete buildings, it is used as formwork (for both side walls, plywood walls, etc.) for concrete placing, support for supporting the formwork, and as a long binding material such as bolts.

In the following description, a plywood support is used as a construction material used in the construction of concrete buildings as an example. In the case of a multi-storey building, reinforcing bars are installed on the ground floor, a concrete floor is formed, and the formwork is perpendicular to the floor surface. The building is built by repeating the work of filling the concrete by standing horizontally.

The pouring of the wall is constructed in a manner called a double wall or a plywood wall, both walls (butting wall) refers to a method of placing concrete between the formwork by installing the formwork on both sides of the excavated underground space.

And, the plywood wall is one side is supported by the excavated underground space, and the other side is to install the formwork is fixed by the support, and then refers to the method of pouring concrete.

In order to construct the concrete plywood, conventionally, a method of supporting formwork by using a washer and a wing nut by welding a form tie to an H-beam pile embedded in the ground to fix and support the formwork is used.

However, since the form tie is buried in the concrete wall, it cannot be completely waterproofed after construction, and the form tie supporting the formwork must be welded and attached to the form wall, and a hole corresponding to the formwork must be drilled. Occurs.

In order to improve this, after the formwork is installed, a triangular truss-shaped plywood support is installed and an anchor is installed at the bottom to fix the support.

In other words, manufacturing cost is high by using expensive anchors to fix the temporary materials (plywood support, formwork) for the construction of concrete structures, and the installation / demolition is cumbersome because the anchors are connected by turning the nut.

The present invention is to solve the above-mentioned conventional problems, by replacing the member for fixing the temporary members such as plywood support with a low cost member to reduce the cost, the temporary material using a reinforcing bar to facilitate the connection / disconnection work of parts The purpose is to provide a fixing device.

Temporary material fixing device using a reinforcing bar according to the present invention for achieving the above object, the reinforcing bar portion is embedded in the concrete structure; A fastening plate slidably coupled to at least one circumference of the reinforcing bar and supported by the concrete structure; A fastening plate holder for assembling the fastening plate on the rebar; In addition, the clamp is fixed to the reinforcing bars of the clamping plate holder to prevent separation of the clamping plate holder and the clamping plate assembly.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in FIG. 1, the temporary material fixing device 100 for a concrete structure according to the present invention may be slidable to one side or both sides of the reinforcement 110 and a circumference of the reinforcement 110 embedded in a portion (one side or the middle). Fastening plate 120 for supporting the temporary construction material for concrete structures on one side or both sides, a fastening plate holder 130 for tightening the fastening plate 120, and the fastening plate 120 are reinforcing bars 110. The clamp 140 is configured to tighten the temporary construction material for the concrete structure without falling out.

The reinforcement 110 is a rod in which a plurality of protrusions 111 protrude at regular intervals on an outer circumferential surface thereof, and is a conventional reinforcement, and a bent portion 112 may be provided along the way.

Tightening plate 120 is plate-shaped and the through-hole 121 is larger than the outer diameter of the reinforcement 110 is formed in the center is slidably coupled to the circumference of the reinforcement (110).

Fastening plate holder 130 is composed of a pair of holder body 131 and the fastening nut 132 screwed to each other, by screwing each other on both sides of the fastening plate 120, temporary plate 120 for the concrete structure To be supported.

Holder body 131 is provided with a screw portion (131a) on the outer circumferential surface and the outer diameter is smaller than the through-hole 121 of the tightening plate 120 is slidably coupled to the circumference of the reinforcing bar 110 and the end of the tightening plate 120 Hanging jaw 131b is formed to extend to a larger diameter than the through-hole 121 is formed.

The tightening nut 132 is provided with a threaded portion 132a on an inner circumferential surface thereof, and is screwed to the threaded portion 131a of the holder body 131. A knob 132b extended to one or more portions (shown as two in the figure) at one side circumference thereof. ) Is formed.

The clamp 140 is coupled to the outer circumferential surface (rear of the captive plate holder 130) of the reinforcing bar 110 to support the captive plate holder 130 so as not to fall out of the rear of the reinforcing bar 110, respectively. A plurality of support parts (protrusions (141a, 142a) or grooves are possible) provided in contact with and supported by the protrusions 111 of) are provided with a pair of fastening pieces 141 and 142 having a symmetrical structure to facilitate fastening and fastening pieces ( It consists of a fastener 143 for fastening 141, 142. Fastener 143 may be used a conventional bolt 143a, nut 143b, adjustment spring (143c). Here, the adjustment spring 143c is not an essential component and is selectively used as necessary to allow the fastening pieces 141 and 142 to be separated better by elastic force when the bolt 143a is released.

The clamping plate 120, the clamping plate holder 130, and the clamp 140 assembly may be assembled only on one side of the rebar 110 as shown in FIG. 1, or may be installed on both sides of the rebar 110 as shown in FIG. 2. That is, the number of the captive plate 120, the captive plate holder 130 and the clamp 140 assembly will vary depending on the application.

As shown in FIG. 3A, the clamp 140 is fixed to the rebar 110 to prevent the tightening plate holder 130 from being separated from the reinforcing bar 110, and thus, the clamp 140 is connected to the tightening plate holder 130, where necessary, the rebar 110. It can be fixed to. In this case, since the clamp 140 is not stored separately, it is easy to store and there is no risk of loss, and the fastening pieces 141 and 142 of the clamp 140 should not interfere when tightening the clamping plate 120 and, if necessary, It is to be fixed to the reinforcement 110, in this structure, for example, one end of the fastening piece (141, 142) is foldably connected to the clamping plate holder 120 via the hinge (141b, 142b), respectively. That is, the pair of fastening pieces 141 and 142 are folded back through the hinges 141b and 142b, respectively, and collected as needed to be fixed to the rebar 110.

As shown in FIG. 3B, the pair of fastening pieces 141 and 142 of the clamp 140 may be coupled to each other by the hinge 144 and the other side may be coupled by the fastener 143. According to this structure, the fastening pieces 141 and 142 are connected to facilitate storage and handling, and since only one fastener 143 is used, cost reduction and easy storage and handling of the fastener 143 are easy.

Hereinafter, an example in which a temporary material fixing device for a concrete structure according to the present invention is applied will be described in detail.

<Application example 1>

4 and 5 respectively show that the temporary structure fixing device 100 for concrete structures according to the present invention was used for fixing the plywood support 10, first, the plywood support 10 is on one side of the formwork (1) Vertical support 11 arranged in the vertical direction, the horizontal support 12, one end is fixed to the lower end of the vertical support 11 and both ends are inclined fixed to the free end of the vertical support 11 and the horizontal support 12, respectively The support 13 is formed in a triangular shape and disposed between the vertical formwork 1 and the bottom portion F of the structure to support the concrete side pressure applied to the formwork 1 by concrete placement. Here, at least one reinforcing member 14 may be installed in the triangular shape formed by the vertical support 11, the horizontal support 12, and the inclined support 13 to increase structural rigidity, and the height adjusting means ( 15) may be further included. The vertical support 11, the horizontal support 12, the inclined support 13, and the reinforcing member 14 may have an angular pipe shape.

A corner portion between the vertical support 11 and the horizontal support 12 is connected via a pair of support plates 16 respectively coupled to both sides of the vertical support 11 and the horizontal support 12. That is, a space equal to the width of the vertical support 11 and the horizontal support 12 is formed between the pair of support plates 16. The support plate 16 has an inclined portion 16a for installation of the fixing device 100 according to the present invention.

The height adjusting means 15 may be a jockey base installed below one side end (part connected to the inclined support 13) of the horizontal support 12. The height adjustment means 15 of the jockey base type is vertically disposed on the support plate 15a and the support plate 15a installed at the bottom portion F, and the adjustment bolt 15b penetrates the horizontal support 12 and the adjustment bolt. It consists of an adjustment nut (15c) is fastened to (15b). That is, when the adjusting nut 15c is tightened or loosened, the horizontal support 12 is lifted to finely adjust the position of the plywood support 10.

Hereinafter, with reference to Figure 6 will be described a method of applying the fixing device according to the invention to the plywood support.

(S10) bottom formwork installation. Slab formwork (2) is installed for the construction of the floor (F) of the concrete building, and reinforcing bars (not shown) are placed inside the slab formwork (2). In this case, only one reinforcing bar 110 may be installed according to a design according to a wall, and several rebars may be arranged at predetermined intervals.

(S20) Bottom casting. After the concrete is poured into the slab formwork (2) installed in the step (S10) to cure the bottom portion (F) is constructed.

(S30) wall formwork installation. When curing of the bottom portion (F) by the step (S20) is completed, install the wall formwork 1 for the construction of the concrete wall.

(S40) plywood support installation. When the concrete is installed in the wall formwork (1) installed in the step (S30) when constructing the wall, the wall support (10) so as not to cause the phenomenon in the wall formwork 1 due to the lateral pressure according to the casting The specific process is as follows.

(S41) Trust support connection. Reinforcing bars 110 are inserted into the holes formed between the pair of support plates 16 of the plywood support 10, so that the vertical support 11 and the horizontal support 12 of the plywood support 10 are wall formwork 1 and the bottom, respectively. To be supported by the part (F).

(S42) Trust tightening. Holder body of the fastening plate holder 130 by inserting the fastening plate holder 130 into the through hole 121 of the fastening plate 120 at one side of the fastening plate 120 (the lower side based on the drawing reference fastening plate 120). The locking jaw 131b of the 131 is supported by the captive plate 120, and the tightening nut 132 is fastened to the screw part 131a of the holder main body 131 that has passed through the captive plate 120 to form the assemblies 120 and 130. Make Insert the reinforcement 110 into the holder body 131 to insert the assembly (120, 130) into the reinforcement 110, and tighten the tightening nut 132, the tightening nut 132 is screwed to the holder body 131. The tightening plate 120 is moved to the support plate 16 side to tighten the plywood support 10 to the reinforcing bar 110 side.

(S43) Clamp fastening. When the plywood support 10 is firmly fixed by the fastening plate 120 in the step (S42), and the clamps 140 are fastened to the outer circumferential surface of the reinforcing bar 110 so that the assemblies 120 and 130 do not fall out of the reinforcing bars 31. The protrusions 141a and 142a of the pair of fastening pieces 141 and 142 of the clamp 140 are caught by the protrusions 111 of the reinforcing bar 110, so that the clamp 140 is fastened to the reinforcing bar 110. The holder 130 is not removed from the reinforcement 110 by the clamp 140.

By installing the plywood support in this way, the height of the plywood support 10 is adjusted so that the vertical support 11 of the plywood support 10 is stably supported by the wall formwork 1 (adjustment of the height adjusting means 15). Nut 15c).

As such, after completing the installation of the plywood support 10, the concrete is poured into the wall formwork 1 and then cured to construct the wall. When curing of the wall is completed, the plywood support 10 is removed by the following work. Loosen fastener 143 of clamp 140 to separate fasteners 141 and 142 from reinforcing bars 110-assembly of fastening plate 120, holder body 131 and fastener nut 132 from reinforcing bar 110. Separation-demolishing the plywood support 10-cutting the protrusion of the reinforcement 110 (or withdrawing by rotation of the reinforcement 110).

<Application example 2>

Figure 7a is a view showing that the temporary structure fixing device 100 for the concrete structure according to the present invention was used in both retaining wall, the retaining wall temporary wall 20 for both walls has a certain space (concrete placing space for constructing the wall) It can be composed of a pair of formwork (21, 22), the horizontal reinforcement 23 and the vertical reinforcement (24) assembled in the transverse, longitudinal direction, respectively, on the outer surface of the formwork (21, 22).

Reinforcing bar 110 of the fixing device 100 according to the present invention penetrates the form (21, 22), both sides protrude to the outside of the form (21, 22), respectively, the tightening plate 120, tightening to each of the protrusions The plate holder 130 and the clamp 140 assembly are respectively coupled to maintain the spacing of the pair of formwork 21, 22. In this case, when dismantling the form (21, 22) is finished by cutting the protrusion of the reinforcement (110).

And, as shown in Figure 7b, the reinforcing bar 110 through the inside of the PVC pipe 25, the tube 25 is embedded and the reinforcing bar 110 may be reused.

<Application example 3>

FIG. 8 illustrates that the temporary construction material fixing device 100 for concrete structures according to the present invention is used for fixing one side retaining wall earth anchors and a temporary wall temporary facility.

For example, to construct the foundation, basement, or concrete wall of the building underground in the construction site, after the soil is excavated, the earthen block is constructed to prevent the collapse of the surface of the excavation by water pressure and penetration of water. Such construction is divided into a concrete permanent construction that is integrally formed on the excavated pit surface, and a temporary construction that is installed on the pit surface only when the construction is completed, and then dismantled when the construction is completed. 30, a sheet pile 31 and a horizontal stiffener 32 are used.

The sheet pile 31 is used in a temporary structure because the wall is firm and suitable for reuse, and is bent into a concave-convex structure so as not to be deformed by earth pressure from the pit surface, and a plurality of sheets are continuously connected by a simple coupling structure.

The reinforcing bar 110 of the fixing device 100 according to the present invention penetrates the sheet pile 31, and the tightening plate 120 is supported by the inclined support plate 33 coupled to the horizontal reinforcing material 32 so that the sheet pile 31 is supported. ) Firmly.

In addition, anchors are used for preventing the collapse of the incision surface at the incision site, slope stability, preventing the groundwater of large structures such as buildings or dams, and preventing the collapse of excavated walls during the underground construction of large buildings. Installed to prevent the movement or distortion of the construction during construction of buildings or large pylons, although not shown in the drawings, the fixing device 100 according to the present invention reinforcement 110 is inserted into the anchor hole to function as a fixing part To perform, the clamping plate 120, the clamping plate holder 130 and the clamp 140 performs the function of the tensioner.

As described above, according to the temporary material fixing device using the reinforcing bar according to the present invention, the temporary material such as plywood support, formwork, etc. can be stably fixed only by ordinary rebars, so that the cost can be reduced compared to conventional bolts. In order to connect the reinforcing bar and the thrust support, the cost can be drastically reduced by using only the reinforcing bar instead of using a separate bolt.

In addition, the construction is very easy because the reinforcement can be buried in advance when the concrete is constructed in the building, and the temporary materials (plywood support, retaining wall, retaining wall, anchor, etc.) can be installed by a simple method of connecting the temporary materials to the reinforcing bars and fastening means. There is a remarkable effect such as a shortening of time.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (8)

A reinforcing bar (110) having a protrusion on the outer circumferential surface and having a protrusion (111) embedded in a concrete structure; A fastening plate 120 slidably coupled to at least one circumference of the reinforcing bar and supported by the concrete structure; A fastening plate holder 130 for assembling the fastening plate onto the rebar; Fixing device using a reinforcing rod, characterized in that the clamp 140 is fixed to the reinforcing bars of the tightening plate holder to prevent the separation of the tightening plate holder and the tightening plate assembly. The holder of claim 1, wherein the captive plate holder is coupled from the other side of the holder body with the holder body 131 penetrating from one side of the captive plate and the captive plate therebetween to fix the captive plate to the holder body. Temporary material fixing device using reinforcing bars, characterized in that consisting of a tightening nut (132). According to claim 2, wherein the holder body, the outer circumferential surface of the tubular structure formed with a screw portion (131a) is formed at one end of the engaging jaw 132 to be caught by the tightening plate is formed from one side of the through hole 121 formed in the tightening plate Temporary material fixing device using a reinforcing bar, characterized in that it is fitted to the outside. 4. The reinforcing bar according to claim 2 or 3, wherein the tightening nut has a threaded portion 132a formed on an inner circumferential surface thereof and fastened to a threaded portion of the holder body, and at least one knob 132b extends on a circumference thereof. Temporary material fixing device used. The method of claim 4, wherein the clamp has an inner circumferential surface of the symmetrical binding pieces (141, 142) having a support that is supported on the projection formed on the outer peripheral surface of the rebar and one or more fastening to tighten the pair of binding pieces to the reinforcing bar side Temporary material fixing device using reinforcing bars, characterized in that consisting of a sphere (143). 6. The apparatus of claim 5, wherein the binding pieces of the clamp are each connected to the holder body. 7. The apparatus of claim 6, wherein the binding piece of the clamp is foldable at one end thereof via a hinge (141b, 142b) to the holder body, respectively. The method of claim 5, wherein the binding piece of the clamp is a temporary member fixing device using a reinforcing bar, characterized in that the opposite side is formed by the hinge (144) coupled.

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