KR102590046B1 - Slab support device and slab construction method using the same - Google Patents

Abstract

It can be supported to prevent collapse when a defect occurs due to aging of the cantilever floor plate installed on the side of the bridge, and a floor plate support device and floor using the same can be reused by immediately constructing a new cantilever floor plate after removing the cantilever floor plate and then dismantling it. A plate construction method is disclosed, wherein the floor plate support device includes an upper flange whose inner end is fixed to the structure and includes an extended upper flange; A lower support support whose inner end is fixed to the structure and is inclined downward and connected to the upper support support; And a sliding type in which both bent parts formed integrally with the U-shaped angle member surround both side ends of the upper flange so that they can slide along the upper flange, and both bent parts are fixed to the upper flange by a fixed setting unit on the bottom of the upper flange. Support; includes.

Description

Floor plate support device and floor plate construction method using the same {SLAB SUPPORT DEVICE AND SLAB CONSTRUCTION METHOD USING THE SAME}

The present invention relates to a floor plate support device. More specifically, it can be supported to prevent collapse when a defect occurs due to aging of the cantilever deck installed on the side of the bridge, and a deck support device that can be reused by dismantling and immediately constructing a new cantilever deck after removing the cantilever deck. This relates to a floor plate construction method using this.

Figure 1a is an illustration of a cantilever floor plate 10 for delivery on a conventional bridge.

It can be seen that the cantilever deck 10 of the bridge is constructed so that only one end is fixed to the side of the bridge and extends outward.

That is, referring to Figure 1a, the bridge is constructed with a girder 11 and a slab 12, and a pavement layer through which vehicles pass is constructed on the upper surface of the slab 12, and a cantilever floor plate 10 is installed on the side of the slab 12. You can see that it is being installed.

That is, the inner ends of the plurality of cantilever supports 13 spaced apart in the direction of slab extension are fixed by anchors 16, and the deck 14 and handrail 15 are installed on the upper surface of the cantilever supports 13, It can be seen that the cantilever floor plate (10) is being constructed.

Accordingly, all the load applied to the cantilever bottom plate 10 is resisted by the cantilever support 13, but if a defect occurs in the anchor 16, it is bound to collapse.

It can be seen that the cantilever floor plate 10 is being constructed using the deck 14, which is relatively lightweight.

Figure 1b is another example of a conventional cantilever floor plate 20 for sidewalks.

The cantilever bottom plate 20 ensures that the inner end of the cantilever support 23 is fixed by an anchor 26, and the deck 24 and railing 25 are installed on the upper surface of the cantilever support 23, as shown in Figure 1a. You can see that it is the same by comparing it with

It can be seen that when installing the cantilever floor plate 20 on the slope, the first and second inclined supports 27 and 28 are further installed.

That is, the first inclined support 27, which connects the outer end of the deck 24 and the slope and is fixed to the slope by an anchor 26, and the inner end of the first inclined support 27 and the cantilever support 23 are connected to each other. It can be seen that the cantilever floor plate 20 is installed as a safer support structure by installing the second inclined support 28.

Since the transmitted load is distributed and supported by the first and second inclined supports 27 and 28, there is a load distribution effect, but when manufacturing and installing the first and second inclined supports 27 and 28, respectively, work space, etc. There was a limitation that constructability and workability inevitably deteriorated due to the problem of .

Figure 1c is another example of a conventional cantilever floor plate 30 for sidewalks.

In the case of Figure 1c, since the deck 32 supported by the cantilever bottom plate 30 is installed at an angle, a rotation support block 34 to accommodate rotation is further installed on the upper surface of the cantilever support 33.

That is, the cantilever support 33 uses a circular steel pipe, etc., and the inner end is fixed to the side of the slab of the bridge using a fixing plate 35.

It can be seen that the anchoring plate 35 and the outer end of the anchoring plate are installed with a linear steel material 37 having a smaller diameter than the cantilever support 33 at an angle,

The upper surface of the cantilever support 33 is formed as a curved portion, and a rotation support block 34 having a contact surface corresponding to the curved portion is further installed. This rotation support block 34 uses a U-shaped fastener 36. It can be seen that the position can be set on the cantilever support 33.

Accordingly, the rotation support block 34 can rotate on the upper surface of the cantilever support 33 so that the inclined deck 32 can be supported and installed on the rotation support block 34, so that it can be installed even when installing the inclined deck 32. It can be seen that stable support is possible on the cantilever support 33.

However, the rotation support block (34) must be manufactured to correspond to the diameter of the cantilever support (33), and the position can be moved to the desired position by using the U-shaped fastener (36) for final setting, but the position must be set one by one. Therefore, there could be safety problems due to falling, so there was a limitation that workability was inevitably reduced to some extent.

Republic of Korea Patent No. 10-2250041 (Title of invention: Double steel pipe filled cantilever sandway system and construction method thereof, Publication date: May 10, 2021) Republic of Korea Patent No. 10-2367426 (Title of invention: Steel tubular cantilever for extended footbridge with slope adjustment block, Publication date: February 25, 2022)

Accordingly, the present invention is a floor plate support device that can simply and temporarily support the existing cantilever floor plate installed on the side of the structure, preventing safety accidents due to the collapse of the cantilever floor plate, and dismantling the existing cantilever floor plate to create a deck and railing. The problem is to provide a floor plate support device that can also serve as a floor plate temporary device that can be installed and a floor plate construction method using the same.

In addition, the floor plate support device of the present invention is manufactured with a truss structure and can be installed more stably using fixtures such as anchors, while providing a floor plate support device that can improve load transfer efficiency and a floor plate construction method using the same. Make it a problem you want to solve.

In addition, the present invention provides a floor plate support device capable of constructing various cantilever floor plates by enabling the floor plate support device to support more stably even if it is formed in various shapes, such as a cantilever floor plate installed at an angle, and a floor plate construction method using the same. is the task to be solved.

The bottom plate support device of the present invention for achieving the above object includes an upper flange whose inner end is fixed to the structure and includes an extended upper flange; A lower support support whose inner end is fixed to the structure and is inclined downward and connected to the upper support support; And both bent parts formed integrally with the U-shaped angle member surround both side ends of the upper flange so that they can slide along the upper flange, and both bent parts on the bottom of the upper flange can be fixed to the upper flange by a fixed setting unit. It includes a sliding support; wherein the sliding support is integrated with an outer end fixing plate in the form of a vertical plate on the outer end surface of the upper support so that it can be separated while moving along the upper flange of the upper support, and the upper flange is exposed. By being located further below the upper surface of the upper flange, it is possible to attach and detach the sliding support using the exposed upper flange.

In addition, the floor plate support device of the present invention and the floor plate construction method using the same for achieving the above object include the steps of (a) lifting the floor plate support device; and (b) fixing and installing the lifted floor plate support device to the structure to support the cantilever floor plate of the structure, so that the floor plate support device is used as a bottom plate support means for the cantilever floor plate. .

In addition, the floor plate support device of the present invention and the floor plate construction method using the same for achieving the above object include the steps of (a) lifting and fixing the floor plate support device to a structure; (b) dismantling and removing the cantilever floor plate of the structure, and adjusting the height using a sliding support on a floor plate support device fixed to the structure; and (c) installing a new cantilever floor plate including a deck on the upper surface of the sliding support set at the height, so that the floor plate support device is used as a floor installation means for the cantilever floor plate.

According to the present invention, if there is a risk of defects in the existing cantilever floor plate, the floor support device can be quickly lifted and installed temporarily to enable safe support, and if the existing cantilever floor plate needs to be dismantled and rebuilt, By using the temporarily installed floor plate support device as a temporary support, a new cantilever floor plate can be constructed immediately, and then it is possible to provide a floor plate support device that can be dismantled and reused and a floor plate construction method using the same.

According to the present invention, the floor plate support device is a truss structure that is lightweight and has a large load-bearing effect, so it is possible to provide a floor plate support device that enables more economical and rapid installation and disassembly work and a floor plate construction method using the same.

According to the present invention, the bottom plate support device enables tilt support while sliding the upper surface even if the bottom surface of the cantilever bottom plate is formed to be inclined, and enables stable fixed setting, so that the bottom plate support device and the bottom plate can be freely installed regardless of the shape of the cantilever bottom plate. It can function as a temporary device, making it possible to provide an efficient floor plate support device and a floor plate construction method using the same.

1A, 1B and 1C are illustrations of cantilever floor plates for sidewalks on conventional bridges;
Figure 2a is an example of lifting the floor plate support device of the present invention;
Figure 2b is an illustration of the configuration and installation of the floor plate support device of the present invention;
Figure 2c is an illustration of using the floor plate support device of the present invention as a floor plate support device;
Figure 2d is an example of using the floor plate support device of the present invention as a floor plate installation device;
Figure 3 shows a flow chart of the floor plate construction method using the floor plate support device of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

[Bottom plate support device (100) of the present invention]

Figure 2A is an illustration of the lifting of the floor plate support device 100 of the present invention, Figure 2B is an illustration of the configuration and installation of the floor plate support device 100 of the present invention, and Figure 2C is an illustration of the floor plate support device 100 of the present invention. ) as a floor slab support device, and Figure 2d shows an example of using the floor slab support device 100 of the present invention as a floor slab installation device.

Referring to Figure 2a, it can be seen that a cantilever floor plate 210 is formed on the side of the bridge-like structure 200, and after lifting the floor plate support device 100 of the present invention,

As shown in Figure 2b, it can be seen that the structure 200 below the cantilever bottom plate 210 can be installed to be stably fixed and dismantled using a fixture 160 such as an anchor.

Even if the bottom of the cantilever bottom plate 210 is formed in various shapes, the cantilever bottom plate 210 can be efficiently supported using the sliding support 140 that can adjust the height and upper inclination.

Accordingly, the floor plate support device 100 of the present invention is manufactured as a truss structure, as shown in FIGS. 2A and 2B, and includes an upper support 110, a lower support 120, a strut member 130, and a sliding support 140. , end fixing plates 150, and fixtures 160, and can be installed and dismantled as a bottom plate support means for the cantilever bottom plate 210 on the side of the structure 200 or as a bottom plate temporary means for the new cantilever bottom plate 220. It will be installed so that it can be installed.

First, referring to FIGS. 2C and 2D, the structure 200 may be a bridge in which cantilever bottom plates 210 are integrally formed on the sides.

It can be seen that this cantilever floor plate 210 can be formed in the form of an existing cantilever beam constructed with a concrete floor plate in Figure 2c, or in the form of a new cantilever floor plate 220 constructed with a deck and railing in Figure 2d. You can.

Accordingly, referring to FIGS. 2C and 2D, the cantilever floor plate 210 and the new cantilever floor plate 220 are installed on the structure 200 using a fixture 160 so that their bottoms are supported by the floor plate support device 100. You can see that it is being installed.

According to Figure 2a, this floor plate support device 100 is manufactured as a truss structure in which the upper support 110 and the lower support 120 are connected by the strut member 130. When manufactured as a truss structure in this way, weight reduction is possible. Therefore, it can be seen that it can be lifted, approached to the structure 200, and fixedly installed.

Accordingly, the upper chord support 110 of the floor plate support device 100 is an upper chord of the truss structure, as shown in FIGS. 2A and 2B, and allows the sliding support 140 to slide in the longitudinal direction on the upper surface, and the sliding support 140 ) It serves to directly support the cantilever bottom plate 210 or the new cantilever bottom plate 220 on the upper surface.

Accordingly, according to FIGS. 2A and 2B, the upper support 110 uses H-type steel horizontally extended to a certain length, and the H-type steel is formed by the upper flange 111, web 112, and lower flange 113. Looking at it based on,

A sliding support 140 is mounted to facilitate sliding while surrounding the upper flange 111, and the lower flange 113 integrated by the web 112 is attached to the upper end of the strut member 130 and the lower support 120. The upper ends are each hinged, for example, to have a load distribution effect.

In this way, if H-type steel is used as the upper support 110, the existing H-type steel can be used as is, thereby reducing processing costs and sufficiently securing support rigidity.

It is easy to integrate the inner end fixing plate 150a and the outer end fixing plate 150b at the inner and outer ends in the form of a vertical plate by welding or the like.

Accordingly, an inner end fixing plate 150a is integrated into the inner end of the upper support 110 in the form of a vertical plate, so that it can be fixed to the structure 200 by a fixture 160 using the inner end fixing plate 150a, An outer end fixing plate 150b is formed integrally with the outer end as shown in FIG. 2b so that it can be lifted and installed.

Next, the lower chord 120 of the floor plate support device 100 is connected to the upper chord 110 as a lower chord of the truss structure, as shown in FIGS. 2A and 2B, and serves to support the transmitted load.

That is, the outer end of the lower support 120 is hingedly connected to the outer end of the upper support 110, and the inner end of the lower support 120 is attached to the structure 200 below the upper support 110. The inner end fixing plate 150a ) and is fixed using a fixture (160),

A strut member 130 is connected, for example, by a hinge, between the outer end and the inner end and the lower flange 113 of the lower string support 120, so that the transmitted load can be distributed and supported while being transmitted to the structure 200.

According to FIGS. 2A and 2B, this lower string support 120 uses a body portion 122 including a steel pipe or steel bar extending to a certain length,

The outer end is connected to the outer end of the upper support 110 by a hinge device 121, and the inner end is connected to the inner end fixing plate 150a also by the hinge device 121, ultimately to the inner end fixing plate 150a. It is fixedly installed on the structure 200 using a fixture 160,

It can be seen that the strut member 130 is connected between the outer end and the inner end to the lower flange 113 of the upper support 110 by both strut hinge devices 131 to effectively resist the bending moment. You can.

At this time, the lower support 120 is set on the upper support 110 to be inclined upward with respect to the structure 200, so that the upper support 110 can be effectively supported from below.

Likewise, if a steel pipe or steel bar is used as the lower support 120, the existing steel pipe or steel bar can be used as is, thereby reducing processing costs and sufficiently securing support rigidity.

A strut hinge device 131 is integrated at the inner and outer ends of the lower string support 120, and the strut hinge device 131 is installed to include forming a hinge plate between both vertical plates so that the hinge plate is connected to the hinge. Just do it.

Next, the strut member 130 of the floor plate support device 100 has a horizontally extending upper support 110 and an obliquely extending lower support 120, like the diagonal of a truss structure, as shown in FIGS. 2A and 2B. It serves to distribute the load by connecting the middle.

The inner ends of the upper support 110 and the lower support 120 are fixed to the structure 200 by the inner end fixing plate 150a, and the outer ends are not otherwise connected to the structure 200, so they maintain their shape, The upper suspension support 110 and the lower suspension support 120 are hinged by both strut hinge devices 131 so that the load transmitted from the upper suspension support 110 is distributed and transmitted to the lower suspension support 120 and the structure 200.

This strut member 130 includes a strut body 132, which is a lightweight member such as a steel pipe, and a strut hinge device 131 at both ends of the strut body 132, which is formed integrally with the lower flange of the upper support 110. It is hingedly connected to (113) and the strut body portion 132 of the lower string support 120.

Likewise, the strut hinge device 131 may be formed by connecting a hinge plate between two vertical plates.

Next, the sliding support 140 of the floor plate support device 100 is mounted to surround the upper flange 111 of the upper support 110, as shown in FIGS. 2A and 2B, and slides stably along the upper support 110. It serves to transfer the load transmitted by directly supporting the cantilever bottom plate 210 or the new cantilever bottom plate 220 to the upper support 110 by allowing it to move.

Referring to FIG. 2B, this sliding support body 140 is formed to include a lower sliding part 141, an abdomen 142, an upper support part 143, and a fixed setting part 144.

First, as shown in FIG. 2b, the lower sliding portion 141 is a U-shaped angle member so that it can slide along the upper flange 111 because the upper flange 111 of the upper support 110 is formed in the shape of a horizontal plate. Both bent parts 141b formed integrally with (141a) surround both side ends of the upper flange 111, and both bent parts 141b on the bottom of the upper flange are fixed to the upper flange 111 by the final fixing setting part 144. ) to be fixedly installed.

As shown in FIG. 2b, the abdomen 142 is in the form of a vertical plate extending from the upper surface of the lower sliding part 141 and is integrated with the lower sliding part 141 to serve to transmit the load to the lower sliding part 141. It is formed by

As shown in FIG. 2b, the upper support portion 143 is in the form of a horizontal plate that directly supports the cantilever bottom plate 210 or the new cantilever bottom plate 220 on the top of the abdomen 142. It is integrated into the abdomen 142 in the form of, for example, an inclined horizontal plate to correspond to the slope of the area in contact with the floor plate 220.

As shown in FIG. 2b, the fixed setting part 144 is lower sliding when the lower sliding part 141 slides around the upper support 110 and the support point of the cantilever bottom plate 210 or the new cantilever bottom plate 220 is determined. The part 141 serves to be fixedly installed on the upper flange 111 of the upper support 110.

For this purpose, a fastening hole communicating with the upper flange 111 is formed in the lower sliding part 141, and both bent parts 141b of the lower sliding part 141 are fastened to the upper flange 111 using fastening bolts and nuts. It can be made to be fixed.

Accordingly, according to FIG. 2b, since the sliding support 140 slides while mounted on the upper flange 111 of the upper support 110, there is no risk of falling off during sliding, and the cantilever bottom plate 210 or the new cantilever bottom plate ( Once the position of the upper support portion 143 corresponding to the bottom surface of 220 is determined, it can be simply fixed and installed on the upper flange 111 of the upper support 110 using the fixing setting portion 144.

In addition, the abdomen 142 of the sliding support 140 can adjust its height to stably support the cantilever bottom plate 210 at a desired height, and as shown in Figure 2d, the new cantilever bottom plate 220 During construction, the new cantilever bottom plate 220 can be installed at the desired height by separately mounting the sliding support 140 of the required height.

Next, the end fixing plate 150 of the floor plate support device 100 is in the form of a vertical plate as shown in FIGS. 2A and 2B, and the inner ends of the upper support 110 and the lower support 120 are attached to the structure 200 with a fixture 160. ) serves to ensure that at least two points are fixed.

Accordingly, a vertical plate is integrated with the inner end surface of the upper support 110 and the strut hinge device 131 of the lower support 120 by a method such as welding, and the structure 200 is secured using a fixture 160 through a fastening hole. The inner end fixing plate 150a and

Accordingly, an outer end fixing plate 150b is formed by integrating a vertical plate with the outer end surface of the upper support 110 by a method such as welding, and is installed so that the upper flange 111 of the upper support 110 is exposed as shown in FIG. 2b. can be seen.

Next, the fixture 160 of the bottom plate support device 100 includes an anchor as shown in FIGS. 2A and 2B, and the strut hinge device 131 of the upper support 110 and lower support 120 is connected to the inner end fixing plate 150a. ) plays a role in fixing and dismantling the structure 200 using,

Anchor holes, etc. can be formed in advance so that the fixture 160 and the inner end fixing plate 150a can be easily installed and dismantled from the structure 200.

According to FIG. 2C, when a defect occurs in the cantilever bottom plate 210 on the side of the structure 200, the bottom plate support device 100 is fixed to the structure 200 so that many parts are spaced apart from the bottom of the cantilever bottom plate 210. It can be confirmed that it can be used as a floor plate support due to stable support.

That is, as shown in FIG. 2C, it can be seen that the cantilever bottom plate 210 of the structure 200 is at risk of collapsing due to damage at the connection portion between the structure 200 and the cantilever bottom plate 210 due to defects, etc.

Accordingly, the floor plate support device 100 of the present invention is lifted and approached as shown in Figure 2a so that the bottom of the cantilever floor plate 210 is supported before collapse,

The worker fixes and installs the inner end fixing plate 150a formed on the inner ends of the upper support 110 and the lower support 120 of the floor support device 100 on the cantilever floor plate 210 using a fixture,

When the position where the bottom of the cantilever bottom plate 210 is supported in close contact with the upper support portion 143 of the bottom plate support device 100 of the present invention is determined by sliding each of the sliding supports 140, the sliding support body 140 is fixedly installed on the final upper support 110.

Furthermore, according to FIG. 2D, it can be seen that the new cantilever floor plate 220 can also be used as a floor plate installation means that can be installed using the floor plate support device 100 fixed to the structure 200.

That is, the floor plate support device 100 is first installed at the lower part of the cantilever floor plate 210 of the defective structure 200, and then the cantilever floor plate (not shown) of the defective structure 200 is removed. ,

A sliding support 140 manufactured to the required height is separately installed on the upper support 110 of the floor plate support device 100,

Installing a longitudinal and transverse deck frame 170 on the upper surface of the sliding support 140,

It can be seen that the new cantilever floor plate 220 in the form of a deck can be installed by fixing the deck 180 and railings to the upper surface of the longitudinal and transverse deck frame 170.

Accordingly, when the installation of the new cantilever floor plate 220 is completed, the floor plate support device 100 is lifted again, as shown in Figure 2a, and the fixture 160 is dismantled and separated so that it can be reused.

[Floor plate construction method using the floor plate support device 100 of the present invention]

Figures 3a, 3b, 3c and 3d show a flowchart of a floor slab construction method using the floor slab support device 100 of the present invention.

First, when the floor plate support device 100 of the present invention is used as a floor plate support means for the cantilever floor plate 210, the floor plate support device 100 discussed above is lifted, and the lifted floor plate support device 100 ) is fixed and installed on the structure 200 to support the cantilever bottom plate 210 of the structure 200,

In the case where the floor plate support device 100 of the present invention is used as a floor plate installation means for the new cantilever floor plate 220, the floor plate construction method using the floor plate support device 100 is installed on the side of the structure 200. This can be said to be a method of dismantling the cantilever floor plate 210 and then constructing a new cantilever floor plate 220 using the floor plate support device 100 discussed above.

To this end, first, the floor plate support device 100 is lifted and fixed to the structure 200 as shown in FIG. 3A.

The floor plate support device 100 is manufactured as a truss structure, as shown in FIGS. 2A and 2B, and includes an upper support 110 equipped with a sliding support 140 and a lower support 120 connected by a strut member 130. ) And an end fixing plate ( 150).

Accordingly, according to FIG. 2A, it can be seen that a lifting device, not shown, is used to approach and securely install the use structure 200.

In the lifted state, the floor plate support device 100 can be fixed to the structure 200 horizontally in the lower space of the cantilever floor plate 210 using the fixture 160.

At this time, as we have seen, the position where the floor plate support device 100 is to be fixed to the structure 200 can be marked in advance or anchor holes, etc., can be provided in advance.

The cantilever bottom plate 210 is set to be stably supported using the sliding support 140 mounted thereon.

Next, as shown in Figure 3b, the cantilever floor plate 210 of the structure 200 is dismantled and removed, and the height is adjusted using the sliding support body 140 on the floor plate support device 100 fixed to the structure 200. do.

That is, the sliding support 140 initially mounted on the bottom plate support device 100 is used to stably support the cantilever bottom plate 210,

If this cantilever bottom plate 210 is dismantled and removed, it may not be possible to set the new cantilever bottom plate 220 in the desired position only with the height of the initially mounted sliding support 140, so the abdomen 142 The installation height of the new cantilever bottom plate 220 can be adjusted by reinstalling the sliding support 140 whose height has been increased or decreased.

To this end, referring to FIG. 2b, the sliding support 140 of the present invention can be separated and replaced while moving along the upper flange 111 of the upper support 110. For this purpose, the outer end fixing plate 150b is It can be seen that the outer end surface of the upper support 110 is integrated in the form of a vertical plate, but the outer end fixing plate 150b is installed further downward so that the upper flange 111 is exposed.

Accordingly, the sliding support 140 can be mounted and detached using the exposed upper flange 111.

Next, as shown in FIGS. 3C and 3D, the longitudinal and transverse deck frames 170 are installed on the upper surface of the sliding support 140 set at a height, and the deck 180 and the upper surfaces of the longitudinal and transverse deck frames 170 are installed. By fixing the railing, a new deck-shaped cantilever floor plate (220) is installed.

The longitudinal and transverse deck frames 170 are installed using square pipes for installing the deck, the deck is made of various materials, and the handrail is installed at the required height on the outside of the deck.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

100: Bottom plate support device
110: Sanghyeon support
111: upper flange 112: web
113: Lower flange
120: Lower support
121: Hinge device 122: Body portion
130: Strut member
131: Strut hinge device 132: Strut body
140: sliding support
141: Lower sliding part 141a: U-shaped angle member
141b: bent portion 142: abdomen
143: upper support part 144: fixed setting part
150: End fixing plate
150a: inner end fixing plate 150b: outer end fixing plate
160: fixture
170: Longitudinal and transverse deck frame
180: deck
200: Structure
210: Cantilever bottom plate 220: New cantilever bottom plate

Claims (10)

An upper support 110 including an upper flange 111 whose inner end is fixed and extended to the structure 200;
A lower support support 120, the inner end of which is fixed to the structure 200 and inclined downward to the upper support support 110 and connected to the upper support support 110; and
Both bent parts 141b formed integrally with the U-shaped angle member 141a so that they can slide along the upper flange 111 surround both side ends of the upper flange 111, and both bent parts ( It includes a sliding support body 140 that allows 141b) to be fixedly installed on the upper flange 111 by the fixed setting part 144,
The sliding support 140 integrates an outer end fixing plate 150b in the form of a vertical plate on the outer end surface of the upper support 110 so that it can be separated while moving along the upper flange 111 of the upper support 110. However, the bottom plate support is positioned further below the upper surface of the upper flange 111 so that the upper flange 111 is exposed, so that the sliding support 140 can be mounted and separated using the exposed upper flange 111. Device. delete According to paragraph 1,
The sliding support 140,
Both bent parts 141b formed integrally with the U-shaped angle member 141a so that they can slide along the upper flange 111 of the upper support 110 are formed to surround both side ends of the upper flange 111. The lower sliding part ( 141);
An abdomen 142 that transfers a load to the lower sliding part 141 in the form of a vertical plate extending from the upper surface of the lower sliding part 141; and
A bottom plate support device including an upper support portion (143) in the form of a horizontal plate at the top of the abdomen (142) and formed to correspond to the slope of the area in contact with the cantilever bottom plate (210) or the new cantilever bottom plate (220). According to paragraph 1,
In the form of a vertical plate, an end fixing plate 150 is further included to ensure that the inner ends of the upper support 110 and the lower support 120 are fixed to the structure 200 at at least two points using a fixture 160. The end fixing plate 150 is,
A vertical plate is integrated into the inner end surface of the upper support 110 and the end of the lower support 120, fixed to the structure 200 using a fixture 160, and the fixture 160 is removed to support the floor plate. A bottom plate support device further comprising an inner end fixing plate (150a) that allows the device (100) to be dismantled. According to paragraph 1,
A floor plate support device further comprising a strut member 130 that serves to distribute the load by connecting the middle of the horizontally extending upper support 110 and the obliquely extending lower support 120. (a) lifting the floor plate support device 100 of claim 1; and
(b) fixing and installing the lifted floor plate support device 100 to the structure 200 to support the cantilever floor plate 210 of the structure 200;
A floor plate construction method using a floor plate support device in which the floor plate support device (100) is used as a floor plate support means for the cantilever floor plate (210). (a) lifting and fixing the floor plate support device 100 of claim 1 to the structure 200;
(b) dismantling and removing the cantilever floor plate 210 of the structure 200 and adjusting the height of the floor plate support device 100 fixed to the structure 200 using a sliding support body 140; and
(c) installing a new cantilever floor plate 220 including a deck 180 on the upper surface of the sliding support 140 set at the height; including, wherein the floor plate support device 100 is a new cantilever floor plate (220) A floor plate construction method using a floor plate support device used as a floor plate installation means. In clause 7,
In step (c), the longitudinal and transverse deck frames 170 are installed on the upper surface of the sliding support 140 set at a height, and the deck 180 is installed on the upper surfaces of the longitudinal and transverse deck frames 170 to create a new A floor plate construction method using a floor plate support device to install a cantilever floor plate (220). According to claim 6 or 7,
A floor plate construction method using a floor plate support device that allows the floor plate support device (100) to be lifted, approached and fixed to the structure (200). According to clause 6 or 7,
The floor plate support device 100 in step (a) is,
In the form of a vertical plate, an end fixing plate 150 is further included to ensure that the inner ends of the upper support 110 and the lower support 120 are fixed to the structure 200 at at least two points using a fixture 160. The end fixing plate 150 is,
A vertical plate is integrated into the inner end surface of the upper support 110 and the end of the lower support 120, fixed to the structure 200 using a fixture 160, and the fixture 160 is removed to support the floor plate. A floor plate construction method using a floor plate support device further including an inner end fixing plate (150a) that allows the device 100 to be dismantled.