KR102002924B1 - prefabricated retaining wall made of precast panel using fixing device for reinforcing bars - Google Patents

Abstract

The present invention relates to a rebar fixing device, which can reduce a construction period and increase constructability by making rebar arranging work quick and simple during construction of a prefabricated retaining wall using a precast panel as a form and allows a structurally stable retaining wall to be formed by increasing bearing power of a support beam supporting a rear panel, and a prefabricated retaining wall using, as a form, a precast panel using the rebar fixing device. To achieve the purpose, the present invention provides the rebar fixing device supporting rebars arranged between the front and rear panels by being coupled to the support beam fixing the rear panel in the prefabricated retaining wall using the precast panel as the form comprises: a fixing plate coupled to the support beam; a support plate orthogonal to the fixing plate on a lower end of the fixing plate and extending horizontally; a locking plate extending to be upwardly inclined in a direction from an extended end of the support plate to the fixing plate to form a fitting space in which the rebars can be fitted between the fixing plate and the locking plate; a guide plate formed to be upwardly inclined in a direction from an extended end of the locking plate to the outside of the fixing plate; a cover plate orthogonal to the fixing plate on an upper end of the fixing plate and horizontally extending to prevent the inflow of foreign substances such that concrete is airtightly poured to make the prefabricated retaining wall using the precast panel as the form.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated retaining wall made of precast panels using reinforcing bars,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated retaining wall formed by molding a precast panel using a reinforcing bar fixing device, and more particularly to a prefabricated retaining wall using a reinforcing bar fixing device, To a prefabricated retaining wall.

Generally, the retaining wall has been constructed by on-site wet construction where reinforcing bars and formworks are installed and concrete is laid on the slopes of roads, park slopes, river banks, coast roads, residential areas, etc., Most of the retaining walls are reverse T-shaped retaining walls.

In this way, the retaining walls constructed by casting the concrete in the field are subjected to the processes such as excavation of the ground, foundation concrete pouring, rebar assembly, pouring concrete into the main body, and backfilling work.

In other words, in the case of the conventional retaining wall construction, it is necessary to perform the reinforcement work of the reinforcing bars by referring to the drawing line of the retaining wall in the field, and after the concrete is laid after setting the form, Day) curing period is required, and the mold is dismantled after completion of curing.

Accordingly, the conventional retaining wall construction requires several steps of construction and a long construction period, which is problematic in terms of economy and workability. In addition, due to the above-mentioned conventional construction method, due to long- There is a high likelihood of complaints and exposure to long-term risks, which is disadvantageous in terms of stability.

Accordingly, in recent years, the use of precast concrete retaining walls (hereinafter referred to as PC retaining walls) has been gradually increasing in consideration of constructability, economy, and possibility of civil complaints. And it is very effective in construction work because it is only assembled in the field, and it is very effective for the complicated urban areas with high traffic volume and urgent construction because it can minimize the possibility of civil complaints.

However, the oldest precast wall retaining wall with the above concept is assembled and installed in the field by assembling and installing precast concrete block manufactured in the factory. It can be constructed by assembling the precast concrete retaining wall block wall in horizontal and vertical directions, Is installed between the wall portion and the base plate in an inclined manner.

However, since the pre-cast wall retaining wall as described above is provided with a large number of supports on the entire rear surface of the wall portion, the pre-cast wall retaining wall can not be superior in workability as compared with a general concrete retaining wall.

Therefore, various retaining wall structures or retaining wall construction methods have been proposed to solve these problems. However, when the construction conditions are complicated and the conditions of the construction site are poor, the construction period is long, and therefore, there is also a problem of uneconomical problems.

Korean Patent Registration No. 10-0923049 (October 15, 2009) Korean Registered Patent No. 10-1066752 (September 15, 2011)

It is an object of the present invention to solve the above problems and to provide a method and apparatus for fastening a prefabricated reinforced concrete retaining wall, A pre-cast panel is formed by molding a pre-cast panel using a reinforcing bar fixing device which can easily fix the pre-cast panel through the panel fixing means and improve the supporting force of the support beams, thereby forming a structurally stable retaining wall. To provide a retaining wall.

According to an aspect of the present invention, there is provided a prefabricated reinforced concrete retaining wall which is coupled to a support beam and supports reinforcing bars disposed between a front panel and a rear panel. A reinforcing plate fixed to the support beam; A support plate extending horizontally orthogonal to the fixing plate at a lower end of the fixing plate; A latching plate extending upwardly from the extended end of the receiving plate in the direction of the holding plate to form a fitting space in which a reinforcing bar can be inserted between the holding plate and the holding plate; A guide plate formed at an extended end of the holding plate so as to be inclined upward toward the outer side of the holding plate; And a cover plate extending horizontally from the upper end of the fixing plate so as to be orthogonal to the fixing plate so as to prevent foreign matter from flowing therethrough to allow a concrete pouring of the concrete.

And the upper end of the fitting space is formed to be smaller than the diameter of the reinforcing bar so that the reinforcing bars fitted into the fitting space are elastically pressed and fixed by the engaging plate.

According to another aspect of the present invention, there is provided a floor panel comprising: a plurality of front panels installed to form a front surface of a retaining wall to be installed; A plurality of rear panels spaced apart from a rear surface of the front panel to form a rear surface of the retaining wall; A support beam positioned between the front panel and the back panel and fixed to the base in a vertically erected state; A panel fixing means installed to connect the front panel and the rear panel to fix and fix the gap between the front panel and the rear panel; A support plate extending horizontally orthogonal to the fixing plate at a lower end of the fixing plate, and a reinforcing bar extending from the extended end of the supporting plate in an upward sloping direction toward the fixing plate, A guide plate formed to be inclined upward toward the outer side of the fixing plate at the extended end of the fixing plate, and a guide plate extending horizontally orthogonal to the fixing plate at the upper end of the fixing plate to prevent foreign matter from entering A plurality of reinforcing bars fixed to the support beams, the reinforcing bars being spaced apart from each other in a height direction of the support beams; A reinforcing bar inserted into the fitting space of the reinforcing bar fixing device and arranged in the width direction of the retaining wall; And concrete poured into a space between the front panel and the rear panel.

The panel fixing means may include a support pipe interposed between the front panel and the rear panel to maintain a gap between the front panel and the back panel and to be hollow inside; And a tie bolt which is installed to be fitted into the hollow of the support tube and has both ends exposed to the outside of the front panel and the rear panel and fastened by a nut to fix the front panel and the rear panel.

And a flange that is formed at both ends of the support tube to increase the area of the front panel and the rear panel which are in close contact with each other to support the front panel and the back panel more stably.

The front panel further includes a hook which is engaged with the front end connection member of the front panel and the other end is caught by the front end connection member of the rear panel to more stably connect the front panel and the rear panel.

As described above, according to the present invention, the present invention having such a structure can easily and securely support reinforcing bars by using a plurality of reinforcing bars.

In addition, the reinforcing bar fixing device has the effect of facilitating the installation of the reinforcing bar by the guide plate and preventing the reinforcing bar from being detached in the process of pouring the concrete by elastically pressing and fixing the reinforcing bar.

Also, since the aggregate is inserted into the inside of the reinforcing bar fixing device by the cover plate, it is prevented that the concrete is not filled tightly around the reinforcing bar, thereby improving the structural efficiency of the retaining wall by improving the synthesis efficiency of the concrete and the reinforcing bar .

In addition, the front panel and back panel are pre-fabricated in the process of constructing the retaining wall, so that it is used as a formwork, so that it is robust and beautiful without forming a separate mold to form a concrete installation space, and a rear wall vertical and front inclined walls are formed And the construction period can be shortened as well, which has the effect of drastically reducing manpower and labor costs.

In addition, after the construction of the retaining wall, the front panel and the rear panel are stably supported through the support pipe of the panel fixing means, and after the construction of the retaining wall, the tie bolt is removed and reusable.

FIG. 1 is a perspective view showing the assembled retaining wall of the present invention,
FIG. 2 is a side view showing the assembled retaining wall of the present invention,
3 is a perspective view illustrating a coupling structure of a front panel and a rear panel in the assembled retaining wall of the present invention,
FIG. 4 is a perspective view showing a separated state of a front panel and a rear panel and a reinforcing bar fixing device in the assembled retaining wall of the present invention, FIG.
5 is a plan view showing the structure of the assembled retaining wall of the present invention,
FIG. 6 is an exemplary view showing a state in which a latching ring is further installed on a front end connector of a front panel and a rear panel of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a perspective view showing a combined structure of a front panel and a rear panel in the assembled retaining wall of the present invention, and FIG. 4 is a perspective view showing the assembled retaining wall of the present invention Fig. 5 is a plan view showing the structure of the assembled retaining wall of the present invention, Fig. 6 is a view showing a state in which the front panel and the rear panel of the present invention are fastened Fig. 8 is a view showing in detail a state in which a ring is further provided,

As shown in the drawing, the reinforcing bar fixing apparatus 500 according to the present invention fixes a reinforcing bar 600 installed on a support beam 300 in a prefabricated reinforced retaining wall, A fixing plate 510 coupled to the beam 300 and a support plate 520 extending horizontally perpendicular to the fixing plate 510 at a lower end of the fixing plate 510. The support plate 520 extends from the extended end of the support plate 520, A retaining plate 530 formed to extend upward in the direction of the retaining plate 530 and forming an engaging space 560 in which the reinforcing bar 600 can be inserted between the retaining plate 510 and the retaining plate 530, A guide plate 540 sloping upwards from the end of the fixing plate 510 toward the outside of the fixing plate 510 and a guide plate 540 extending horizontally perpendicular to the fixing plate 510 at the upper end of the fixing plate 510, 700) was put in place It is configured to include a cover plate 550, so that.

The reinforcing bars 500 may be welded to the support beams 300 through a fixing plate 510. A plurality of the reinforcing bars 500 are spaced apart from each other along the height direction of the support beams 300. [

Further, the reinforcing bar fixing device 500 may be formed of a thin plate capable of supporting and supporting a reinforcing bar.

The locking plate 530 is formed to be inclined in the direction of the fixing plate 510 so that the reinforcing bar 600 inserted into the fitting space 560 is fixed to the outside of the fitting space 560.

The upper end of the fitting space 560 is formed to be smaller than the diameter of the reinforcing bar 600 so that the reinforcing bar 600 inserted into the fitting space 560 is caught by the fixing plate 530 And is firmly fixed without being released to the outside of the fitting space 560 by being pressed and fixed by the plate 530.

The guide plate 540 is formed so as to be inclined upward in the outer direction of the fixing plate 510 so that the reinforcing bars 600 are supported through the guide plate 540 in the process of fitting the reinforcing bars 600 into the fitting spaces 560 So that the installation work of the reinforcing bars 600 can be performed more easily and quickly.

The cover plate 550 is formed to be positioned on the upper portion of the reinforcing bar 600 inserted into the fitting space 560 so that the aggregate can be inserted in the process of pouring the concrete 700 between the front panel 100 and the rear panel 200 It is interfered with the cover plate 550 so that it is prevented from being caught between the fitting space 560 and the guide plate 540 and the fixing plate 510 so that the concrete 700 is tightly injected into the periphery of the reinforcing bar.

That is, when the aggregate is sandwiched between the guide plate 540 and the fixed plate 510 in the course of pouring the concrete 700, the concrete 700 can not be injected tightly around the reinforcing steel 600, The efficiency of synthesis of the semiconductor device 700 is lowered.

Meanwhile, the prefabricated retaining wall that forms the precast panel using the reinforcing bar fixing device 500 includes a plurality of front panels 100 installed to form a front surface of a retaining wall to be installed, And a supporting beam 300 fixed to the base 800 in a state of being vertically erected and positioned between the front panel 100 and the back panel 200. The supporting beams 300 And panel fixing means 400 installed to connect between the front panel 100 and the rear panel 200 to fix and secure the gap between the front panel 100 and the rear panel 200; A reinforcing bar fixing device 500 installed on the supporting beam 300 for supporting and fixing a reinforcing bar 600 disposed in the width direction of the retaining wall and a reinforcing bar fixing device 500 inserted into the fitting space 560 of the reinforcing bar fixing device 500, And a concrete 700 placed in a space between the front panel 100 and the rear panel 200. The reinforcing bars 600 are disposed in the width direction.

The front panel 100 and the rear panel 200 are precast panels manufactured in advance in the factory so as to have a rectangular plate shape having a predetermined thickness and volume by using the reinforcing bars 600 and the concrete 700, .

Meanwhile, fitting grooves 120 and 220 and fitting protrusions 110 and 210, which are generally concave and convex shapes, are formed on the bottom surface, left and right side surfaces of the front panel 100 and the rear panel 200, When the front and rear panels 200 are stacked in the upward and downward directions or in the left and right direction, the fitting grooves 120 and 220 having a concavo- The front panel 100 or the rear panel 200 adjacent to each other in the upward, downward, left, and right directions are interdigitated with each other so that the front panel 100 or the rear panel 200 are kept separated from each other without being separated from each other.

A plurality of shear connection members 140 and 240 are further provided on the facing surfaces of the front panel 100 and the rear panel 200 to improve the efficiency of the composite of the concrete and the concrete.

Although the shear connectors 140 and 240 are formed in a ring shape as shown in the drawing, the shear connectors 140 and 240 may be formed in various shapes for improving the efficiency of the synthesis with the concrete 700.

The front panel 100 may be connected to the front end connection member 140 of the rear panel 200 by connecting the front end connection member 140 of the front panel 100 with the front panel 100, 900).

The hooking ring 900 is bent in one direction at both ends of the connecting portion 910 and has a bar-shaped connecting portion 910. The hooking ring 900 is bent at one end of the connecting portion 910 to connect the front panel 100 and the rear panel 200, And a pair of latching portions 920 that are engaged with the latching portions 920.

The latching part 920 is inclined toward the direction facing each other so that the latching part 920 is securely caught without being detached from the front end coupling member 240.

Meanwhile, the support beam 300 may include an H beam including a pair of flanges 310 facing each other and a web 320 connecting the centers of the flanges 310.

In addition, when the front surface of the front panel 100 is further provided with a patterned pattern having a variety of patterns including a mark or name of the local government body, it can be used as a decorative material to make the surrounding wall look beautiful as well as the retaining wall itself.

The mounting holes 130 and 230 are formed on the front panel 100 and the rear panel 200 in the thickness direction of the front panel 100 and the rear panel 200 for mounting the panel fixing means 400 .

The panel fixing means 400 includes a support pipe 410 interposed between the front panel 100 and the rear panel 200 and hollow inside thereof, And both ends are exposed to the outside of the front panel 100 and the rear panel 200 through the mounting holes 130 and 230 formed in the front panel 100 and the rear panel 200, And a tie bolt (420) for fixing the front panel (100) and the rear panel (200).

The tie bolts 420 are installed to be inserted into the hollow of the support pipe 410 so that the concrete 700 is laid between the front panel 100 and the rear panel 200. After curing the concrete 700, And can be reused, which can reduce the material cost.

A flange 411 is formed on both sides of the support pipe 410 so as to increase the area of the front panel 100 and the rear panel 200 so that the front panel 100 and the rear panel 200 are closely contacted with each other. So that it can be stably supported.

Meanwhile, the support beam 300 may further include an extension part 330 installed at a lower end for improving the supporting force

The reinforcing bars 500 are welded to the flanges 411 of the support beams 300 to provide a plurality of support beams 300 along the height direction of the support beams 300.

The reinforcing bar fixing device 500 is installed on the flange 411 facing the rear panel 200 in the support beam 300 to fix the reinforcing bar.

The reinforcing bar fixing device 500 can be reinforced by simply installing the reinforcing bars 600 inserted in the width direction of the retaining wall in the retaining wall, thereby improving workability.

The concrete 700 is cured by being poured into a space formed between the front panel 100 and the rear panel 200 which are used in place of the formwork. The front panel 100, the rear panel 200, (400) and the support beams (300) to form a solid retaining wall.

The reinforcing bar fixing device 500 of the present invention configured as described above allows the reinforcing bars 600 to be easily fixed and supported, so that the reinforcing bars can be easily laid and the workability is excellent.

The reinforcing bars 600 are more easily installed by the guide plate 540 and the reinforcing bars 600 are elastically pressed and fixed through the retaining plate 530 to pour the concrete 700, Thereby preventing it from escaping.

Also, since the aggregate is prevented from being inserted into the reinforcing bar fixing device 500 through the cover plate 550, the concrete 700 is tightly filled, thereby improving the efficiency of the synthesis of the concrete and the reinforcing bars, .

In addition, the front panel 100 and the rear panel 200 are previously manufactured and used as a mold in the process of constructing the retaining wall, so that it is robust and beautiful without forming a separate mold for forming a concrete casting space, It is possible not only to form the retaining wall with an accurate inclination, but also to shorten the construction period, thereby drastically reducing manpower and labor costs.

In addition, after the construction of the retaining wall, the interval between the front panel 100 and the rear panel is kept constant through the support pipe of the panel fixing means 400, and after the construction of the retaining wall is completed, It is possible to reuse it, thereby reducing the material cost.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(100): front panel (110): insertion projection
(120): fitting groove (130): mounting hole
(140): shear connector (200): rear panel
(210): insertion protrusion (220): insertion groove
(230): Installation hole (240): Shear connector
(300): Support beam (310): Flange
(320): Web (330): Extension
(400): Panel fixing means (410): Supporting pipe
(411): flange (420): tie bolt
(430): nut (500): reinforcing bar fixing device
(510): fixing plate (520): base plate
(530): engagement plate (540): guide plate
(550): cover plate (560): fitting space
(600): Rebar (700): Concrete
(800): Base part (900): Clasp ring
(910): connecting portion (920): engaging portion

Claims (6)

delete delete A plurality of front panels installed to form a front surface of a retaining wall to be installed and having a plurality of shear connectors at one side thereof;
A plurality of rear panels spaced apart from a rear surface of the front panel to form a back surface of the retaining wall and having a plurality of shear connectors on a surface facing the front panel;
A support beam positioned between the front panel and the back panel and fixed to the base in a vertically erected state;
A panel fixing means installed to connect the front panel and the rear panel to fix and fix the gap between the front panel and the rear panel;
A support plate extending horizontally orthogonal to the fixing plate at a lower end of the fixing plate, and a reinforcing bar extending from the extended end of the supporting plate in an upward sloping direction toward the fixing plate, A guide plate formed to be inclined upward toward the outer side of the fixing plate at the extended end of the fixing plate, and a guide plate extending horizontally orthogonal to the fixing plate at the upper end of the fixing plate to prevent foreign matter from entering A plurality of reinforcing bars fixed to the support beams, the reinforcing bars being spaced apart from each other in a height direction of the support beams;
A reinforcing bar inserted into the fitting space of the reinforcing bar fixing device and arranged in the width direction of the retaining wall;
And concrete poured into a space between the front panel and the rear panel,
Wherein the panel fixing means comprises a support tube interposed between the front panel and the rear panel to maintain a gap between the front panel and the back panel and to be hollow inside, And a tie bolt which is exposed to the outside of the front panel and the rear panel and fixed by the nut to fix the front panel and the back panel,
And a flange which is formed at both ends of the support pipe and which can stably support the front panel and the rear panel by increasing the area of the front panel and the rear panel,
Wherein the supporting beam is further formed with an expansion part at a lower end thereof for improving the supporting force at the foundation part. The prefabricated retaining wall according to claim 1, delete delete The method of claim 3,
Further comprising a hook which is engaged with the front end connection member of the front panel and the other end of which is caught by the front end connection member of the rear panel to more stably connect the front panel and the rear panel. Prefabricated retaining wall that molds precast panel.

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