KR101263202B1 - One touch binder for a precast construction and a precast construction applied with the same - Google Patents

Abstract

The one-touch binding device 50 for the precast prefabricated structure of the present invention is a body 51 into which the binding body 20 for binding the plurality of tension wire bundles 10 is fitted, and a layer layer is stacked inside the body 51. A plurality of wedges 52 are provided in multiple stages to hold the binding body 20 tightly, and a plurality of wedges 52 are arranged to closely contact the multi-stage wedge insertion grooves 54 formed in the body 51 in the transverse direction. Of the contact ring 53 and the plurality of wedges 52 toward the opening portion 51a of the body 51, the elastic body for longitudinally contacting the plurality of wedges 52 in the longitudinal wedge insertion groove 54 Precast prefabricated structure 1000 of the present invention includes a base portion 1100, a pillar portion 1300, and a coping portion 1500, and includes a base portion 1100 or a coping portion 1500. One-touch binding device for binding a plurality of tension wire bundle 10 for binding the base portion 1100, the pillar portion 1300 and the coping portion 1500 to its upper end A large number of 50 is provided.

Description

ONE TOUCH BINDER FOR A PRECAST CONSTRUCTION AND A PRECAST CONSTRUCTION APPLIED WITH THE SAME}

The present invention relates to a one-touch binding device for a precast prefabricated structure and a precast prefabricated structure to which the same is applied. More specifically, a plurality of tension wire bundles for firmly binding the prefabricated structure can be firmly bound to the structure by one touch. It relates to a one-touch binding device for precast prefabricated structures and a precast prefabricated structure to which the same is applied.

In general, the construction of the structure due to the concrete pouring in the field has been reduced in recent years due to the increase in the construction period and the environmental problems and civil complaints caused by this, instead of prefabricated segments prefabricated on site instead Rapid construction method is widely used.

A representative example of such a construction method is disclosed in Korean Patent Laid-Open Publication No. 10-2008-0073279 entitled "PSC Piers Assembled with Precast Concrete Segments with Steel Ducts, Steel Pipes and Reinforcing Bars", and a representative drawing thereof. 1 and 2 are shown.

As shown in FIG. 1, the bridge foundation 110 is inserted with a plurality of shear connection members 203 for shear connection at an upper end to protrude upward, and a plurality of basic sheath pipes 111 and a sheath pipe 111. The steel wire 201 is inserted into the.

Segment grooves 113 are formed inside and outside the shear connector 203, and the grooves 113 are chipped to facilitate attachment of non-shrink mortar. The groove 113 is further provided with a rubber pad 115 for horizontal maintenance and prevention of leakage of non-shrink mortar filling. At this time, at one end of the base sheath pipe 111 is provided with a fixing fixture 202 for fixing the steel wire 201.

In addition, the bridge foundation 110 is provided with a basic reinforcing bar insertion hole 119 between each shear connecting member 203. Pier foundation 110 is a steel wire supporting steel pipe 207 having the same length as the steel wire 201 is inserted between the sheath pipe 111 and the steel wire 201 when the curing is completed, the steel wire supporting steel pipe 207 is It is fixed by the support reinforcing bar 101.

As shown in FIG. 2, in a conventional pier, a plurality of segments 120 are vertically connected on a pier foundation 110, and a coping part 130 is connected thereto.

The segment 120 has a chamfer 122 formed at the corner, and the sealing material 123 is coupled to the chamfer 122. The first sealing rubber pad 125 is installed in the ring-shaped first sealing groove 124 formed to be spaced apart from the outer surface of the shear connector 203 by a predetermined distance. In addition, the segment 120 is formed with a reinforcing bar insertion hole 126 into which the reinforcing bar 210 is inserted.

Since the above-described prior art forms the reinforcing bar insertion holes 119 in the bridge foundation 110 and inserts the reinforcing bars 210 therein and casts concrete in the insertion hole 119 to fix the reinforcing bars 210, the reinforcing bars ( There was a fear that the 210 is not fitted tightly into the insertion hole 119, so that the concrete may be shaken during pouring, and it may not withstand tensile load or torsional load well.

Korean Patent Publication No. 10-2008-0073279

The present invention has been made to solve the above-mentioned problems of the prior art, the problem to be solved of the present invention is a one-touch binding device that can be firmly bound with a plurality of tension wire bundle one-touch base or base and nose It is to provide a one-touch binding device for a precast prefabricated structure that can be easily assembled to the base, column and coping by installing the ping portion and a precast prefabricated structure using the same.

In order to achieve the object of the present invention described above, the present invention is a multi-stage in the form of a body to which the binding body to bind the plurality of tension wire bundles for binding the base portion, the pillar portion and the coping portion of the structure is fitted, the layer layer is laminated inside the body. It is provided with a plurality of wedges for holding the binding body, a plurality of contact rings for lateral contact closely to the multi-stage wedge insertion groove formed in the body, and a plurality of wedges to push toward the opening of the body It provides a one-touch binding device for a precast prefabricated structure, characterized in that it comprises an elastic body for close contact in the longitudinal direction of the wedge insertion groove of the multi-stage.

The one-touch binding device of the present invention is characterized in that the body is composed of a binding body insertion portion into which the binding body is fitted, a load bearing portion that bears loads applied to a plurality of tension wire bundles, and a support portion supporting the load bearing portion, wherein the load bearing portion loads the load bearing portion. It is formed in the periphery of the lowermost end of the multi-stage wedge insertion groove in order to sufficiently endure, and has another inclined surface corresponding to the inclined surface of the wedge insertion groove.

In addition, the one-touch binding device of the present invention is characterized in that a plurality of tooth-shaped protrusions formed in the circumferential direction are formed side by side in the longitudinal direction on a surface where a plurality of wedges are in contact with the binding body, and a plurality of tooth-shaped protrusions are bound. Insertion of the sieve is easy, but is characterized by another having a right triangle cross section to make the deviation very difficult.

In addition, the one-touch binding device of the present invention has a plurality of contact rings having a "C" shape, the elastic body is a plurality of coil springs or one wave spring, and is fixed to a plurality of tension wire bundles at intervals from the binding body. It characterized in that it further comprises a cover for covering the opening of the body, it is another feature that an elastic body such as a tension spring is provided between the cover and the binding body to increase the adhesion of the cover to the opening.

In addition, the present invention is composed of a base portion, a pillar portion and a coping portion, the base portion is provided with a number of one-touch binding device for fastening a plurality of tension wire bundles for binding the base portion, the pillar portion and the coping portion at its upper end. Provided is a precast prefabricated structure to which the one-touch binding device is applied.

In addition, the present invention is composed of a base portion, a pillar portion and a coping portion, the base portion is provided with a large number of one-touch binding device for fastening a plurality of tension wire bundles for binding the base portion, the pillar portion and the coping portion at its upper end, The coping unit provides a precast prefabricated structure to which the one-touch binding device is applied, characterized in that a plurality of one-touch binding devices are provided upside down.

According to the one-touch binding device for the precast prefabricated structure of the present invention and the precast prefabricated structure to which the same is applied, a plurality of tension wire bundles for binding the base portion, the pillar portion, and the coping portion are installed in the base portion or the base portion and the coping portion. Since it is firmly bound to the one-touch binding device with one touch, the installation work of the structure is very easy and the working time can be greatly reduced.

1 and 2 are schematic views of the prior art;
3 is a schematic exploded perspective view of a precast prefabricated structure to which the one-touch binding device of the present invention is installed;
4 is a schematic perspective view showing a plurality of tension line bundles that bind the base, pillar and coping portions of FIG. 3 in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic perspective view showing a plurality of tension line bundles that bind the foundation, pillar and coping portions of FIG. 3 in accordance with another preferred embodiment of the present invention. FIG.
6 is a schematic cross-sectional view taken along AA showing a state where the one-touch binding device is installed at the base of FIG. 3;
7 is a schematic cross-sectional view taken along BB showing a state in which a one-touch binding device is installed in the coping portion of FIG. 3;
FIG. 8 is a schematic cross-sectional view showing a state where rebar bundles of bundles are inserted into the one-touch binding device of FIGS. 6 and 7;
Figure 9 is a schematic perspective view showing one end of the wedge provided in the one-touch binding device of Figure 8 and the contact ring inserted into the wedge;
10 is a schematic perspective view showing the coil spring inserted into the wedge and the bottom surface of the wedge of FIG. And
FIG. 11 is a schematic perspective view showing a wave spring inserted into the wedge and the bottom surface of the wedge of FIG.

Hereinafter, a one-touch binding device for a precast prefabricated structure and a precast prefabricated structure to which the same is applied will be described in detail with reference to the accompanying drawings.

Figure 3 is a schematic exploded perspective view of a precast prefabricated structure in which the one-touch binding device of the present invention is installed.

As shown in FIG. 3, the precast prefabricated structure 1000 of the present invention includes a foundation portion 1100, a pillar portion 1300, and a coping portion 1500.

As shown, the base portion 1100, the pillar portion 1300, and the coping portion 1500 are formed with the through-holes 1 through which the plurality of tension wire bundles for firmly binding them are formed at positions corresponding to each other. . A plurality of tension wire bundles may be coupled to only one end of the one-touch binding device provided in the foundation 1100, or alternatively, both ends may be bound to the one-touch binding device provided in the foundation 1100 and the coping part 1500. Can be.

4 is a schematic perspective view showing a plurality of tension line bundles that bind the base, pillar and coping of FIG. 3.

As shown in the drawing, the lower end of the plurality of tensile wire bundle 10 is fixed to the cylindrical binding body 20 to bind it as one, and an example of covering the opening of the one-touch binding device at a slight interval thereon. For example, a disk-shaped cover 30 having excellent elastic force such as rubber is fitted to be fixed.

FIG. 5 is a schematic perspective view showing a plurality of tension line bundles that bind the base, pillar, and coping portion of FIG. 3 to another example of FIG.

As shown, a cylindrical binding body 20 which binds it to one of the upper end and the lower end of the plurality of tension wire bundles 10 is fixedly fitted, and the one-touch binding device is opened at a slight distance immediately below or above it. For example, a disk-shaped cover 30 having excellent elastic force, such as rubber, that covers the part, is fixedly fitted.

6 is a schematic cross-sectional view taken along A-A showing a state where the one-touch binding device is installed at the base of FIG. 3.

As shown, an insertion groove 1101 is formed in the base portion 1100 to insert the one-touch binding device 50 upright at its upper end, and the one-touch binding device 50 is fixed to the insertion groove 1101. Is inserted. Insertion of the one-touch binding device 50 is made by putting the one-touch binding device 50 together while curing the foundation 1100. Thus, in fact, the base 1100 in which the one-touch binding device 50 is integrally obtained is obtained.

7 is a schematic cross-sectional view taken along line B-B showing a state in which a one-touch binding device is installed in the coping portion of FIG. 3.

As shown, in the coping portion 1500, an insertion groove 1501 into which the one-touch binding device 50 is inserted upside down is formed at an upper end thereof, and the one-touch binding device 50 is fixed to the insertion groove 1501. Is inserted. Insertion of the one-touch binding device 50 forms the insertion groove 1501 first when curing the coping portion 1500, and then a plurality of tensile wire bundles (10 in FIG. 5) are completely in the coping portion 1500 in the field. It is made by penetrating and curing by inserting the one-touch binding device 50 into the insertion groove 1501 so as to fit tightly into the binding body (20 in FIG. 5) of the plurality of tension wire bundles 10.

According to the present invention, when the one-touch binding device 50 is installed on the base portion 1100 as shown in FIG. 6, a plurality of tension line bundles 10 are formed as shown in FIG. 4 to form the base portion 1100 of FIG. 1, The pillar portion 1300 and the coping portion 1500 are firmly bound to one.

On the other hand, when the one-touch binding device 50 is installed on the base portion 1100 and the coping portion 1500 as shown in Figs. 6 and 7, a plurality of tension wire bundle 10 as shown in Fig. The foundation 1100, the pillar 1300, and the coping unit 1500 are firmly bound to one.

8 is a schematic cross-sectional view illustrating a state where a plurality of tension wire bundles are inserted into the one-touch binding device of FIGS. 6 and 7.

As shown, the one-touch binding device 50 of the present invention includes a body 51, a plurality of wedges 52 consisting of a plurality of stages, a plurality of contact rings 53 and an elastic body 54.

The body 51 bears this load properly when a load is applied to the bundle insert portion 51a and the plurality of tension wire bundles 10 into which the binding body 20 for binding the plurality of tension wire bundles 10 is fitted. It is composed of a load bearing portion 51b and a supporting portion 51c supporting the load bearing portion 51b, and the multi-stage wedge insertion groove 54 is elongated in the longitudinal direction so that a plurality of wedges 52 are installed in multiple stages. A space 55 is formed to be connected to and directly below the elastic body 54.

Here, the load bearing portion 51b is formed around the wedge insertion groove 54 at the lowermost end so as to sufficiently withstand the loads applied to the plurality of tension wire bundles 10 and corresponds to the inclined surface of the wedge insertion groove 54. It is formed to have an inclined surface. By such a configuration, the body 51 can withstand the load applied to the plurality of tension wire bundles 10 while reducing the diameter of the binding body inserting portion 51a.

The plurality of wedges 52 are intended to hold the binding body 20 which binds the plurality of tensile wire bundles 10, and are provided in multiple stages in a layered manner. The plurality of wedges 52 of each stage are all the same shape, only the bottom of the plurality of wedges 52 is formed with an elastic body insertion groove 56 in which the elastic body 54 is inserted into the bottom surface. On the inner surface of the wedge 52, that is, the surface in contact with the binding body 20, a plurality of jagged protrusions (52a in Fig. 9) formed in the circumferential direction are formed side by side in the longitudinal direction. At this time, the cross section of the protrusion 52a is formed in a right triangle, so that the insertion of the binding body 20 is easy, but is difficult to detach. The plurality of wedges 52 in which the layers are stacked in multiple stages may be made integrally for ease of fabrication and assembly.

The plurality of contact rings 53 are for closely contacting the plurality of wedges 52 at each end to the wedge insertion grooves 54 formed in the body 51 in a transverse direction, and the contact ring insertion grooves formed at the wedges 52 ( 52b) in FIG. 9. The contact ring 53 has a substantially "C" shape as shown in FIG.

When the binding body 20 that binds the plurality of tension wire bundles 10 into the body 51 of the one-touch binding device 50 starts to be inserted, the elastic body 54 is compressed by the inserted force, and a plurality of steps are formed. Wedge 52 is pushed in the insertion direction of the binding body (20).

On the other hand, when the binding body 20 is completely inserted into the body 51 and the force is removed, a plurality of wedges 52 made of multiple stages are returned to their original positions by the restoring force of the compressed elastic body 54. At this time, the cover 30 bound to the reinforcement bundle 10 completely covers the opening 50a of the body 51, and the sawtooth-shaped protrusions 52a of the plurality of wedges 52 bind the body 20. While tightly squeezed on the outer circumferential surface of the binding body 20 is prevented.

The elastic body 54 pushes a plurality of wedges 52 at each end toward the opening portion 50a of the body 51 so that a plurality of wedges 52 are formed in the wedge insertion groove 54 formed in the body 51 in the longitudinal direction. In order to be in close contact with the coil spring, a coil spring may be applied as shown in FIG. 8, or, alternatively, a wave spring may be applied as shown in FIG. 11. When the wave spring is applied, the space occupied by the elastic body 54 formed in the body 51 can be further reduced, thereby making the length of the body 51 smaller.

4 or 5 does not show a means for connecting them directly between the binding body 20 and the cover 30, but unlike the binding device between the cover 30 and the binding body 20 as shown in FIG. An elastic body 40 such as a tension spring may be provided to increase the adhesion of the cover 30 to the opening.

In order to facilitate understanding of the description, one end of the wedge and the contact ring inserted into the wedge are shown in detail in FIG. 9.

As shown in Fig. 9, the wedges 52 at each stage are divided into four. The number of divisions can be changed at any time into three divisions, five divisions, etc., depending on the design conditions.

In addition, in order to help the understanding of the description, an example in which the coil spring is inserted into the bottom surface of the wedge is shown in FIG. 10, and an example in which the wave spring is inserted in the bottom surface of the wedge is illustrated in FIG. 11.

As shown in FIG. 10, when a plurality of coil springs are applied to the elastic body 54, a cylindrical insertion groove 52c into which a portion of one coil spring 54 ′ is inserted is formed at the bottom surface of the wedge 52. 11, when one wave spring is applied to the elastic body 54, an arc-shaped long insertion groove 52c 'into which a quarter of the wave spring 54 "is inserted into the lower surface of the wedge 52 is inserted. In FIG. 11, although the insertion groove 52c ′ is formed on the bottom surface of the wedge 52, the insertion groove 52c ′ may not be formed.

As described above, the one-touch binding device for the precast prefabricated structure and the precast prefabricated structure to which the same has been described with reference to a preferred embodiment of the present invention, but various changes, modifications, or modifications are possible without departing from the spirit of the present invention. Is apparent to those skilled in the art.

1000: precast prefabricated structure 1100: foundation
1300: pillar portion 1500: coping portion
50: one-touch binding device 51: the body
51a: binding body insert 51b: load bearing part
51c: base 52: multiple wedges
53: a plurality of contact ring 54: elastic body

Claims (11)

A body into which a binding body for binding a plurality of tension wire bundles for binding the base portion, the pillar portion, and the coping portion of the structure is fitted;
A plurality of wedges provided in multiple stages in such a manner that a layer layer is stacked inside the body to hold the binding body tightly;
A plurality of contact rings for lateral contact with the plurality of wedge insertion grooves formed in the body in multiple directions; And
And an elastic body for pushing the plurality of wedges toward the opening of the body to closely contact the plurality of wedges in the longitudinal wedge insertion groove of the multi-stage wedge inserting groove.
The precast body according to claim 1, wherein the body is composed of a binding body inserting portion into which the binding body is fitted, a load bearing portion that bears loads applied to the plurality of tension wire bundles, and a support portion supporting the load bearing portion. One-touch binding device for prefabricated structure.
3. The precast prefabricated type according to claim 2, wherein the load bearing portion is formed around the lowermost end of the wedge insertion grooves of the multi-stage in order to sufficiently withstand the load, and has an inclined surface corresponding to the inclined surface of the wedge insertion groove. One-touch binding device for structures.
The one-touch binding device for precast prefabricated structure according to claim 1, wherein the plurality of wedges have a plurality of serrated protrusions formed in a circumferential direction on a surface in contact with the binding body in parallel to the longitudinal direction.
The one-touch binding device for precast prefabricated structure according to claim 4, wherein the plurality of jagged protrusions have a right-angled triangular cross section in order to make insertion of the binding body easy but detachment is very difficult.
The one-touch binding device for precast prefabricated structure according to claim 1, wherein the plurality of contact rings have a "C" shape.
The one-touch binding device for precast prefabricated structure according to claim 1, wherein the elastic body is a plurality of coil springs or one wave spring.
The one-touch binding device for precast prefabricated structure according to claim 1, further comprising a cover for covering the openings of the body fixedly fitted to the plurality of tension wire bundles at intervals from the binding body.
The one-touch binding device for precast prefabricated structure according to claim 8, wherein an elastic body such as a tension spring is provided between the cover and the binding body to increase the adhesion of the cover to the opening.
Consists of foundation, pillar and coping,
The base portion is such that the one-touch binding device as claimed in any one of claims 1 to 8 for fastening a plurality of tension wire bundles for binding the base portion, the pillar portion, and the coping portion to an upper end thereof. Precast prefabricated structure applying a one-touch binding device characterized in that a plurality is provided.
Consists of foundation, pillar and coping,
The base portion is such that the one-touch binding device as claimed in any one of claims 1 to 8 for fastening a plurality of tension wire bundles for binding the base portion, the pillar portion, and the coping portion to an upper end thereof. Many
The coping part precast prefabricated structure to which the one-touch binding device is applied, characterized in that a plurality of one-touch binding device is provided upside down in the upper end.

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