WO2020046046A1

WO2020046046A1 - Automatic mold-lifting device and automatic mold-lifting method using same

Info

Publication number: WO2020046046A1
Application number: PCT/KR2019/011162
Authority: WO
Inventors: 홍건호; 박홍근
Original assignee: 호서대학교 산학협력단; 서울대학교 산학협력단
Priority date: 2018-08-31
Filing date: 2019-08-30
Publication date: 2020-03-05
Also published as: KR20200025766A; KR102096548B1

Abstract

The present invention provides an automatic mold-lifting device and an automatic mold-lifting method using same, wherein the device comprises a stably supported guide rail and thus has improved safety to prevent a worker from falling down, can shorten a period of construction time, and can easily control the verticality of a building. An automatic mold-lifting device according to one aspect of the present invention comprises: corner steel plates spaced apart from each other; guide rails fixedly installed on the corner steel plates, respectively; fixing members for fixing the guide rails to the corner plates, respectively; a mold installed to be movable along the guide rails; and a support bar which is fixed to the mold, is in contact with each of the guide rails, and guides the movement of the mold.

Description

Automatic formwork lifting device and automatic formwork lifting method using the same

The present invention relates to an automatic formwork lifting device and an automatic formwork lifting method using the same.

In general, in order to construct various buildings such as apartments, houses or buildings, concrete floors, including concrete walls that form the outer walls, and concrete such as girders and inner walls for partitioning a plurality of spaces inside each floor, are included. For the construction of such concrete structures, formwork with a certain size should be installed at intervals suitable for the thickness of the concrete structure to be constructed, and then the concrete will be placed and cured together with reinforcing bars inside. The method is widely used.

In the case of using the formwork to construct the concrete structure, the concrete structure is fully cured between each formwork, and then the formwork is manually removed from the concrete structure and reused, which forms the outer wall of a high-rise building such as an apartment or a building. When the concrete retaining wall is constructed, it is very difficult to remove the formwork from the concrete retaining wall, move the separated formwork to the upper layer, and reinstall it again, as well as the time required for the construction and the worker in the process of removing, moving, and reinstalling the formwork. There was a problem that the risk of causing a safety accident, such as the fall of the very large.

In order to prevent such a problem, the gang forms formed integrally with the workbench and the formwork were manufactured, so that the gang forms were lifted according to the height of the building to be constructed and the concrete walls could be placed and finished sequentially. At this time, the formwork is coupled to the other formwork by a tie bolt at a certain distance, it is supported on the outer layer concrete wall cured by the anchor bolt.

However, if anchors are installed on the lower concrete walls and used as support points for the formwork, when the curing conditions and strength are not expressed, the anchors may fall and fall and safety accidents may occur.

In addition, for the good construction of the upper wall requires precise measurement and monitoring technology according to the construction quality, such as the verticality of the pre-concrete concrete wall used as a support point, and difficult to secure the construction period and construction precision.

The present invention provides an automatic formwork lifting device and an automatic formwork lifting method which can stably support the guide rail of a large formwork to prevent a fall and improve safety, shorten the construction period, and more easily control the verticality of the building. to provide.

Automatic formwork lifting apparatus according to an aspect of the present invention is a corner steel sheet spaced apart from each other, a guide rail fixed to the corner steel sheet, a fixing member for fixing the guide rail to the corner steel sheet, installed to be movable along the guide rail And a support rod fixed to the formwork, the support rod being in contact with the guide rail to guide the movement of the formwork.

Here, the corner steel sheet may include an inner steel sheet and an outer steel sheet, and the inner steel pipe and the outer steel sheet may be formed to be bent in an L shape, and may be spaced apart from each other.

In addition, the formwork may include a panel, an upper work stationary fixed to the upper portion of the panel and a lower work stationary fixed to the lower portion of the panel.

In addition, a hydraulic cylinder for moving the panel may be installed between the upper workbench and the lower workbench.

In addition, the support bar may be provided with a roller which is in contact with the guide rail to move along the guide rail.

According to another aspect of the present invention, an automatic formwork lifting method includes: a corner steel plate installation step of installing a corner steel sheet, a guide rail fixing step of fixing a guide rail to the corner steel sheet, and removing the formwork from a concrete wall to rise along the guide rail. And a concrete placing step of placing concrete between the formwork and the corner steel sheet.

Here, in the fixing of the guide rails, holes may be formed in the corner steel sheets and the guide rails, and then the fixing members may be inserted to fix the guide rails and the corner steel sheets.

In addition, the corner steel plate installation step may be installed in connection with the corner steel sheet disposed in the lower, it may be installed so as to separate the outer steel sheet and the inner steel sheet bent in an L-shape.

In addition, the guide rail installation step may include a formwork installation step for installing the formwork supported on the guide rail, the formwork installation step is to install the inclined support rod on the formwork and the support rod is on the guide rail Can be installed to be supported.

In addition, the formwork lifting step includes the step of retracting the panel of the formwork to separate the concrete wall and the formwork, the step of separating the formwork and the concrete wall is to move the panel to the outside using a hydraulic cylinder installed inclined to the lower workbench. Can be.

According to the embodiment of the present invention, since the corner steel sheet is installed and the guide rail is fixed to the corner steel sheet, it is possible to prevent the formwork from falling due to poor curing of the lower layer concrete.

In addition, since the formwork is installed to match the verticality of the corner steel sheet, it is possible to control the verticality of the wall more easily and precisely.

In addition, since the guide rail is fixed to the corner steel sheet, the formwork can be raised in the state where the corner steel sheet is installed on the top without waiting for curing of the formwork, thereby shortening the construction period.

1 is a view showing an automatic formwork lifting device according to an embodiment of the present invention.

2 is a view showing a state in which the automatic formwork lifting device according to an embodiment of the present invention is raised.

3 is a view showing a state in which the guide rail of the automatic formwork lifting apparatus according to an embodiment of the present invention is fixed to the corner steel sheet.

Figure 4 is a flow chart for explaining the automatic formwork lifting method according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated and described in detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present invention, the terms 'comprise' or 'having' are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it is noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated.

1 is a view showing an automatic formwork lifting device according to an embodiment of the present invention, Figure 2 is a view showing a state in which the automatic formwork lifting device according to an embodiment of the present invention is raised.

Referring to FIGS. 1 and 2, the automatic formwork lifting device 101 according to the present embodiment may include a corner steel plate 10, a guide rail 30, a formwork 20, and a support rod 40. have.

The two corner steel sheets 10 are spaced apart from each other and are installed to be located at both ends in the width direction of the concrete wall 51. The corner steel sheet 10 includes an outer steel sheet 12 and an inner steel sheet 14 spaced apart from each other, and is bent to form an L shape.

The corner steel plate 10 may be joined to the corner steel plate 10 positioned at the lower portion thereof and continue to the upper portion thereof. In this case, the corner steel sheet 10 may be bonded to the corner steel sheet positioned below by welding or bolts.

One corner steel sheet 10 may be provided with two or more guide rails 30, and the guide rail 30 is formed to extend in the height direction of the corner steel sheet 10. As shown in FIG. 3, the guide rail 30 is fixedly installed on the corner steel plate 10 through the fixing member 31, and the fixing member 31 may be formed of a bolt, a screw, or the like. The guide rail 30 may be made of H-shaped steel or metal rods of various shapes.

Meanwhile, the formwork 20 includes a plate-shaped panel 21, an upper work platform 23 fixed to the upper portion of the panel 21, and a lower work platform 24 fixed to the lower portion of the panel 21. Two formwork 20 can be arranged to face each other, the formwork 20 located on the outside is supported on the outer steel sheet 12, the formwork 20 located on the inner side is to be supported on the inner steel sheet 14 Can be.

The panel 21 has a flat plate shape and blocks the space between the corner steel plates 10 to accommodate concrete. The panel 21 is installed to be movable inward or outward so that after the curing of the concrete, the panel 21 may be moved outward and separated from the concrete wall 51. In addition, the panel 21 may rise after being separated from the concrete wall 51 and move inward to form a space in which concrete is accommodated on the cured concrete wall 51.

The upper work platform 23 is installed on the top of the formwork 20 and the lower work platform 24 is spaced apart from the upper work platform 23 is located at the bottom. The upper workbench 23 and the lower workbench 24 each include a footrest and a safety bar. The upper work table 23 and the lower work table 24 are formed to extend from one corner steel plate 10 to the other corner steel plate 10.

The upper workbench 23 and the lower workbench 24 include a support frame 28, which consists of a plurality of rods which abut against the underside of the upper workbench 23 and the lower workbench 24 and the upper workbench. Support 23 and lower work platform 24 to have structural stability. The support frame 28 may be made of H-shaped steel or metal rods of various shapes.

In addition, a hydraulic cylinder 25 for supporting the upper working platform 23 and the lower working platform 24 may be installed between the upper working platform 23 and the lower working platform 24. The hydraulic cylinder 25 can move the panel 21 in the horizontal or vertical direction. The hydraulic cylinder 25 may be disposed inclined to the lower work platform 24, the lower end of the hydraulic cylinder 25 is fixed to the lower work platform 24, and the upper end of the hydraulic cylinder 25 is fixed to the panel 21. Can be.

The upper working platform 23 and the lower working platform 24 are provided with a support bar 40 to abut the guide rail 30 to guide the movement of the formwork 20. In more detail, the support rod 40 may be installed in connection with the support frame 28.

The support rod 40 is formed in a rod shape inclined to the guide rail 30, and each guide rail 30 is installed to abut the support rod 40. A roller 45 may be installed at a lower portion of the support rod 40, and the roller 45 may move along the guide rail 30 by contacting the guide rail 30. The upper end of the support rod 40 is fixed to the upper work platform 23 or the lower work platform 24. After the lifting of the formwork 20 is completed, the formwork 20 is fixed to the guide rail 30 by a fixing shoe (not shown). Accordingly, the formwork 20 may be supported by the corner steel sheet 10 via the support rod 40 and the guide rail 30.

On the other hand, the formwork 20 may be connected to a lifting device (not shown) for raising the formwork 20, where the lifting device may be made of a hydraulic jack or a tower crane. The automatic formwork lifting device 101 according to the present embodiment may include various kinds of lifting devices, and the present invention is not limited to the structure of the lifting device.

As described above, in the automatic formwork lifting device 101 according to the present embodiment, since the guide rail 30 is fixed to the corner steel plate 10, concrete does not properly cure, thereby causing the accident of the guide rail 30 falling. It can prevent. In addition, since the formwork 20 is not supported on the cured concrete wall 51 but the corner steel plate 10, the verticality of the building can be precisely controlled and the verticality can be improved.

In addition, since the formwork 20 can be raised in the state where the corner steel sheet 10 is installed without having to wait for the curing time of the concrete, the construction period can be shortened as compared with the related art.

Hereinafter will be described an automatic formwork lifting method according to an embodiment of the present invention. Figure 4 is a flow chart for explaining the automatic formwork lifting method according to an embodiment of the present invention.

1 and 4, the automatic formwork lifting method according to the present embodiment is a corner steel plate installation step (S101), guide rail fixing step (S102), formwork lifting step (S103), and concrete pouring step (S104) ).

In the corner steel plate installation step (S101), two corner steel sheets 10 are installed at the edge of the wall. The outer steel sheet 12 and the inner steel sheet 14 constituting the corner steel sheet 10 are spaced apart from each other, and the outer steel sheet 12 and the inner steel sheet 14 are respectively disposed on the lower outer steel sheet 12 and the inner steel sheet ( 14) may be fixedly installed by bolts or welding.

Guide rail fixing step (S102) is fixed to each of the corner steel plate 10, the guide rail 30 is fixedly installed on one corner of the steel sheet 10 to install two or more guide rails (30). The guide rail 30 may be fixed to the corner steel plate 10 by fixing members 31 such as bolts and screws.

In the guide rail fixing step S102, holes are formed in the corner steel sheet 10 and the guide rail 30, and then the fixing member 31 may be inserted to fix the guide rail 30 to the corner steel sheet 10. .

Guide rail fixing step (S102) may include a formwork 20 installation step for installing the formwork 20 supported on the guide rail (30). After the guide rail 30 is installed, two formwork 20 are disposed to face each other, and the formwork 20 positioned on the outside is supported by the outer steel sheet 12, and the formwork 20 positioned on the inner side is formed on the inner steel sheet ( 14).

Forming step 20 installation step may be to install the inclined support bar 40 to the formwork 20 so that the support bar 40 is supported on the guide rail (30). In the step of installing the formwork 20, the formwork 20 may be fixed to the guide rail 30 using a fixing shoe.

Formwork lifting step (S103) moves the formwork 20 disposed at the bottom by using a lifting machine. At this time, the lifting of the formwork 20 may be made by a hydraulic jack, a tower crane and the like. Formwork lifting step (S103) may include the step of separating the formwork 20 and the concrete wall 51 by retracting the panel 21 and the step of raising the separated formwork 20.

The step of separating the formwork 20 and the concrete wall 51 moves the panel 21 to the outside using the hydraulic cylinder 25 in a state in which the fixing shoe is released. In the step of raising the formwork 20, the formwork 20 is raised by a hydraulic jack or the like, and when the formwork 20 is raised, the formwork 20 is guided by the supporting rod 40. As the formwork 20 rises, the support rod 40 moves upward along the guide rail 30, and the roller 45 installed at the lower portion of the support rod 40 rotates in contact with the guide rail 30. do.

Accordingly, the formwork 20 may be stably raised under the guidance of the support rod 40. After the lifting of the formwork 20 is completed, the formwork 20 is fixed to the guide rail 30 by a fixed shoe or the like.

Concrete pouring step (S104) is to move the panel 21 in the wall direction to form the concrete into the space between the formwork 20 and the corner steel sheet 10 in a state that the formwork 20 and the corner steel plate 10 is connected Pour. At this time, the panel 20 may move inward by the hydraulic cylinder 25. As a result, the concrete may move to the space between the formwork 20 and the inner space of the corner steel plate 10 to form a composite core wall.

Thereafter, the corner steel plate 10 is installed again on the corner steel plate 10 on which concrete is poured, thereby repeating the above steps, increasing the height of the building, and ending the step when the building is formed to the designed height.

As described above, the automatic formwork lifting method according to the present embodiment lifts the formwork in a state where the guide rail is fixed to the corner steel sheet, thereby improving safety and shortening the construction period.

As described above, embodiments of the present invention have been described, but those skilled in the art may add, change, delete or add elements within the scope of the present invention as described in the claims. The present invention may be modified and changed in various ways, etc., which will also be included within the scope of the present invention.

Claims

Corner steel plates spaced apart from each other;

A guide rail fixed to the corner steel plate;

A fixing member for fixing the guide rail to the corner steel sheet;

A formwork installed to be movable along the guide rail; And

A support rod fixed to the formwork and in contact with the guide rail to guide the movement of the formwork;

Automatic formwork lifting device comprising a.
The method of claim 1,

The corner steel sheet includes an inner steel sheet and an outer steel sheet, wherein the inner steel sheet and the outer steel sheet is bent to form an L-shaped automatic die lifting device, characterized in that spaced apart from each other.
The method of claim 1,

And the formwork includes a panel, an upper work stationary fixed to the upper part of the panel, and a lower work stationary fixed to the lower part of the panel.
The method of claim 3,

Automatic die lifting device is installed between the upper workbench and the lower workbench a hydraulic cylinder for moving the panel.
The method of claim 1,

The support rod is an automatic formwork lifting device is provided with a roller which is in contact with the guide rail to move along the guide rail.
Corner steel plate installation step of installing corner steel sheet;

A guide rail fixing step of fixing a guide rail to the corner steel sheet;

A formwork lifting step of removing the formwork from the concrete wall and raising it along the guide rail; And

A concrete placing step of pouring concrete between the formwork and the corner steel sheet;

Automatic die lifting method comprising a.
The method of claim 6,

The guide rail fixing step is to form a hole in the corner steel sheet and the guide rail, and then inserting the fixing member to fix the guide rail and the corner steel sheet automatic formwork method.
The method of claim 6,

The corner steel plate installation step is installed in connection with the corner steel sheet disposed in the lower, automatic formwork lifting method characterized in that installed to space the outer steel sheet and the inner steel sheet bent in an L-shape.
The method of claim 6,

The guide rail installation step may include a formwork installation step for installing the formwork supported on the guide rail,

The formwork installation step is an automatic formwork lifting method for installing the support rods inclined to the formwork and the support rods are supported on the guide rail.
The method of claim 6,

The formwork lifting step includes the step of retracting the formwork panel to separate the concrete wall and the formwork, and the step of separating the formwork and the concrete wall is an automatic formwork for moving the panel to the outside using a hydraulic cylinder installed inclined to the lower workbench. Lifting method.