Composite material reinforcing device for box-type concrete structure and construction method thereof

Abstract

This invention relates to a composite material reinforcement device for concrete structures and its construction method. The device provides a composite material reinforcement structure having a length in the front-to-back direction to achieve seismic reinforcement of a box-type concrete structure. It includes: a central portion comprising: a frame portion having an internal space with a trapezoidal cross-section centered along its length; a partition portion dividing the internal space into at least one zone; and a reinforcement portion located at the upper and lower ends of the central portion and integrally formed to cover it. The reinforcement portion includes: a first plate located at the upper end of the central portion and covering the upper portion of the central portion; a second plate bent in a manner corresponding to the shape of the central portion and located at the lower end of the central portion, thereby covering the lower portion of the central portion; and an extension portion extending from both sides of the central portion and joined together by the first and second plates.

Description

Technical Field

[0001] This invention relates to a composite material reinforcement device for box-type concrete structures and its construction method, and more specifically, to a composite material reinforcement device for concrete structures and its construction method. As a structural reinforcement device integrating composite materials and hollow aluminum beams, it can simultaneously improve the cross-sectional expansion, rigidity, and toughness of concrete structures, thereby effectively achieving endurance enhancement and seismic reinforcement. Background Technology

[0002] Typically, for box-type concrete structures used in underground driveways, subways, waterways, etc., the load they bear may exceed the design load due to soil accumulation on top or traffic loads acting on them. This load leads to excessive shear forces and negative moments at the corners (the areas between the top slab and the sidewalls) in the vertical direction, potentially compromising structural safety. Therefore, structural reinforcement of the corners of box-type concrete structures is sometimes necessary.

[0003] In the negative moment range of a box-type concrete structure, the concrete cannot effectively increase the load-bearing capacity of the components, thus failing to adequately resist shear forces or negative moments. Therefore, it is necessary to use reinforcement devices to support a portion of the shear forces and negative moments acting at the corners of the box-type concrete structure, thereby dispersing some of these forces and moments.

[0004] The disadvantage of this type of box-shaped concrete structure is that when reinforcement is required, the reinforcement material must be non-conductive, so reinforcement materials made of iron plates cannot be used.

[0005] To address this, a technique has been proposed to strengthen the structure by attaching seismic-resistant devices to the top slab and sidewalls of a box-type concrete structure. However, this type of seismic-resistant device only disperses external forces acting at the corners, reducing member forces and failing to enhance the resistance of the members, thus resulting in insufficient seismic performance against earthquake loads.

[0006] As prior art, there is Korean Patent No. 10-1879191, entitled "Earthquake-resistant reinforcement device for the corner of an underground box-shaped structure and its construction method". Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] To address the problems described above, the present invention aims to provide a composite material reinforcement device and its construction method for box-type concrete structures. By applying the composite material reinforcement device, which integrates composite materials with hollow aluminum beams, to concrete structures, the cross-sectional expansion, rigidity, and toughness of the concrete structures are simultaneously improved, thereby effectively achieving endurance enhancement and seismic reinforcement.

[0009] Solution for solving the problem

[0010] To address the aforementioned problems, a composite material reinforcement device for box-type concrete structures according to an embodiment of the present invention is formed having a length in the front-rear direction to achieve seismic reinforcement of the box-type concrete structure. It may include: a central portion comprising: a frame portion having an internal space with a trapezoidal cross-section centered on the length direction; a partition portion dividing the internal space into at least one zoned space; and a reinforcement portion located at the upper and lower ends of the central portion and integrally formed to cover the central portion. The reinforcement portion includes: a first plate located at the upper end of the central portion and covering the upper portion of the central portion; a second plate bent in a manner corresponding to the shape of the central portion and located at the lower end of the central portion, thereby covering the lower portion of the central portion; and an extension portion formed by extending from both sides of the central portion through the first and second plates and joining them together.

[0011] Furthermore, the aforementioned composite material reinforcement device is installed with the upper surface of the first plate in contact with the part of the box-type concrete structure that is susceptible to vibration.

[0012] Furthermore, the second plate includes a cutting line formed on the bottom surface, and the composite material reinforcement device bends around the cutting line, thereby enabling it to be installed at the bent portion of the box-shaped concrete structure.

[0013] Furthermore, the aforementioned central portion is formed of aluminum alloy, and the aforementioned reinforcing portion is a prepreg sheet impregnated with thermosetting resin in a fiber sheet containing one or more of carbon fiber and glass fiber.

[0014] Furthermore, the aforementioned central section is configured as multiple sections and can extend in the width direction.

[0015] In addition, the aforementioned composite material reinforcement device also includes a connecting member that connects multiple composite material reinforcement devices to each other along the length direction so as to be able to extend along the length direction. The connecting member is formed in the shape of a rod and is combined between the two ends of one composite material reinforcement device and another composite material reinforcement device, and can be inserted into any one of the division spaces in the central part of each composite material reinforcement device.

[0016] In addition, the aforementioned central portion may also include: a fixing portion formed on the lower side of the aforementioned partition space and fixing the aforementioned connecting member, the fixing portion including: a fixing rod formed along the length of the aforementioned partition space and the upper surface contacting the aforementioned connecting member; and a plurality of fixing springs formed on the bottom surface of the aforementioned partition space and the upper end connected to the bottom surface of the aforementioned fixing rod.

[0017] Furthermore, the aforementioned fixing rod has its upper surface divided into multiple regions along the length direction and a protrusion formed in each region. The aforementioned connecting member has a fixing groove formed on its bottom surface at a position corresponding to the aforementioned fixing protrusion. The fixing protrusion and the fixing groove are combined to improve the fixing force of the aforementioned connecting member on the aforementioned composite material reinforcement device.

[0018] In addition, the aforementioned fixing part may also include: a vertically movable part, which fixes the fixing rod in a lower position by compressing the fixing spring, or by expanding the fixing spring to position the fixing rod in an upper position to increase the fixing force of the connecting member. The vertically movable part includes: a movable member formed on the bottom surface of the fixing rod and formed to penetrate the bottom surface of the composite material reinforcement device; and a movable hole formed on the bottom surface of the composite material reinforcement device so that the movable member can penetrate through.

[0019] Furthermore, the aforementioned fixing rod has an internal space that is hollow inside. The aforementioned moving component may include: a head, which is plate-shaped and located within the internal space of the fixing rod; a main body, which is cylindrically formed on the bottom surface of the head and located inside the fixing spring, with the upper side of the main body penetrating the bottom surface of the fixing rod and the lower side penetrating the moving hole; a leg, which is plate-shaped on the bottom surface of the main body and located on the bottom surface of the composite material reinforcement device; and a moving protrusion, which is formed on the side of the main body and can be rotated and fixed to the bottom surface of the composite material reinforcement device after passing through the moving hole.

[0020] Furthermore, the construction method for a composite material reinforcement device for seismic strengthening of box-type concrete structures may include: a device preparation step: preparing one or more composite material reinforcement devices, wherein the composite material reinforcement device includes: a central part, which includes: a frame part, which is formed to have an internal space with a trapezoidal cross-section centered on the length direction; a partition part, which divides the internal space into at least one zone space; and a reinforcement part, which is located at the upper and lower ends of the central part and is integrally formed and covers the central part; a fixing step: fixing the composite material reinforcement device to the box-type concrete structure using anchors while the upper surface of the first plate is in contact with the vibration-sensitive part of the box-type concrete structure; and a filling step: filling the zone space with reinforcement material.

[0021] In addition, after the preparation step of the above-mentioned device, a bending and forming step may be included: bending the above-mentioned composite material reinforcement device with the cutting line as the center, so that the above-mentioned composite material reinforcement device can be installed in the bent part of the above-mentioned box-shaped concrete structure.

[0022] In addition, after the preparation step of the above-mentioned device, the following step is also included: a connection step: inserting the connecting member into the above-mentioned partition space, thereby connecting the multiple composite material reinforcement devices to each other along the length direction so as to extend along the length direction, and the connecting member is formed in the shape of a rod and is combined between the two ends of one composite material reinforcement device and another composite material reinforcement device, and can be inserted into any one of the partition spaces in the central part of each composite material reinforcement device.

[0023] Invention Effects

[0024] The composite material reinforcement device and its construction method for box-type concrete structures according to embodiments of the present invention, as described above, effectively enhance the structural endurance and seismic resistance by integrating the composite material with hollow aluminum beams.

[0025] In addition, due to the use of chemical-resistant materials, it has excellent corrosion resistance to pollution and sewage, thus having the advantage that its physical properties will not decrease with long-term use.

[0026] Furthermore, by simultaneously reinforcing the slab and the corner, the effect of shear reinforcement can be enhanced. Attached Figure Description

[0027] Figure 1a and Figure 1b These are perspective and side sectional views of a composite material reinforcement device according to an embodiment of the present invention.

[0028] Figure 2a and Figure 2b To show Figure 1a and Figure 1b A three-dimensional view and a side sectional view showing the vertically formed shape of the central partition.

[0029] Figure 3a and Figure 3b To show the two Figure 1a and Figure 1b A three-dimensional view and a side sectional view showing the shape formed by the central part.

[0030] Figure 4a and Figure 4b To show in Figure 1a and Figure 1b The cutting line is formed at a 90° and 70° angle relative to the length direction in the bottom view.

[0031] Figure 5 To illustrate the composite reinforcement device along Figure 4a A three-dimensional image showing the shape of the bent cutting lines.

[0032] Figure 6 To illustrate the composite reinforcement device along Figure 4b A three-dimensional image showing the shape of the bent cutting lines.

[0033] Figure 7a and Figure 7b To show Figure 5 A schematic diagram showing the composite material reinforcement device installed at the corner of a box-type concrete structure.

[0034] Figure 8a and Figure 8b To show Figure 6 A schematic diagram showing the composite material reinforcement device installed at the corner of a box-type concrete structure.

[0035] Figure 9a and Figure 9b This is a schematic diagram illustrating how a composite material reinforcement device according to an embodiment of the present invention is installed on a column of a box-type concrete structure.

[0036] Figures 10a to 10c This is a schematic diagram illustrating how the composite material reinforcement device according to an embodiment of the present invention extends its length through connecting components.

[0037] Figure 11a and Figure 11b This is a schematic diagram showing the insertion of a connecting member in a composite material reinforcement device according to an embodiment of the present invention, where a fixing part is formed in the central part.

[0038] Figure 12a and Figure 12b To show in Figure 11a and Figure 11b The projection of the fixed rod having protrusions and the fixing grooves on the connecting parts, and the bottom projection of the fixed rod having protrusions.

[0039] Figure 13a and Figure 13b To show in Figure 12a and Figure 12b A perspective view showing the shape of the connecting part and a cross-sectional view based on line A-A' are inserted in the middle.

[0040] Figure 14a and Figure 14b To show in Figure 11a and Figure 11b The bottom perspective view and side sectional view show that the fixed part has an up-and-down movable part and the movable part extends out of the movable hole.

[0041] Figure 15a and Figure 15b To show in Figure 11a and Figure 11b The bottom perspective view and side sectional view show the fixed part having an up-and-down movable part and the movable part being inserted into the movable hole.

[0042] Figure 16a and Figure 16b To show, besides Figures 14a to 15b A schematic diagram of the bottom surface of the moving parts and moving holes of the leg.

[0043] Figure 17 A flowchart illustrating a construction method for a composite material reinforcement device according to an embodiment of the present invention. Detailed Implementation

[0044] The present invention will now be described with reference to the accompanying drawings; however, this description does not constitute a limitation on any particular embodiment. Various modifications can be made to the embodiments, and the present invention can have various embodiments. Furthermore, the following description should be understood to include all variations, equivalent technical solutions, or alternative technical solutions that contain the ideas and technical scope of the present invention.

[0045] In the following description, terms such as "first," "second," etc., are used to describe various components, and their meanings are not limited to themselves, but are only used to distinguish one component from another.

[0046] The same reference numerals used throughout this specification denote the same components.

[0047] Unless explicitly stated otherwise in the context, singular expressions used in this invention include plural expressions. Furthermore, the terms “comprising,” “possessing,” or “having” as used below are used to specify the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and not to preclude the presence or additional possibilities of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0048] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having the same meaning as they have in the context of the relevant art, and should not be construed as unusual or overly formal unless explicitly defined herein.

[0049] Furthermore, when describing the invention with reference to the accompanying drawings, the same reference numerals are used for the same components, and repeated descriptions of these reference numerals are omitted. In describing the invention, detailed descriptions of related prior art will be omitted if they are deemed likely to unnecessarily obscure the spirit of the invention.

[0050] The following refers to the attached document. Figures 1a to 17 The embodiments of the present invention will be described in detail below.

[0051] Figure 1a and Figure 1b A perspective view and a side sectional view of a composite material reinforcement device according to an embodiment of the present invention; Figure 2a and Figure 2b To show Figure 1a and Figure 1b A three-dimensional view and a side sectional view showing the vertically formed shape of the central partition. Figure 3a and Figure 3b To show the two Figure 1a and Figure 1b A three-dimensional view and a side sectional view showing the shape formed by the central part.

[0052] Box-type concrete structure 2 is a closed square structure installed in underground lanes, subways, waterways, etc. It consists of a thick slab at the top, side walls on both sides, and a bottom slab at the bottom.

[0053] Reference Figures 1a to 3b According to an embodiment of the present invention, the composite material reinforcement device 1 can be installed in the vibration-prone parts of the box-type concrete structure 2. More specifically, the composite material reinforcement device 1 can be installed in various locations of the box-type concrete structure 2 that are susceptible to vibration and require seismic reinforcement or strength reinforcement, such as columns or corners, but is not limited thereto. Thus, the composite material reinforcement device 1, as a device capable of increasing the seismic reinforcement, shear reinforcement, and other effects on the installed part, may include: a central part 10 and a reinforcement part 20.

[0054] The central part 10 is made of aluminum alloy and is located in the center of the composite material reinforcement device 1, where it provides internal support. It may include a frame part 11 and a partition part 12.

[0055] The border portion 11 can be formed to have an internal space with a trapezoidal cross-section centered on the length direction. Preferably, the border portion 11 is formed in a trapezoidal shape, but it is not limited to this and can be formed in various shapes such as quadrilaterals and triangles.

[0056] The partition 12 can divide the internal space into at least one zone space S1, and each zone space divided by the partition 12 can be configured with a predetermined shape.

[0057] More specifically, such as Figure 1a and Figure 1b As shown, the partition portion 12 is formed with an oblique line in the internal space, and adjacent partition portions 12 are formed in opposite directions, so that the cross section of the dividing space S1 can be formed into a trapezoidal shape.

[0058] also, Figure 2a and Figure 2b As shown, the partition portion 12 is formed vertically, so that the cross-section of the centrally located partition space S1 can be formed into a quadrilateral shape. As described above, the partition portion 12 can be arranged into various shapes according to the position and angle between the partition portions 12, but is not limited to these.

[0059] This central section 10 is configured in multiple ways and can extend in the width direction. More specifically, such as... Figure 3a and Figure 3b As shown, by providing two central portions 10 and extending them in the width direction, a larger area can be provided with seismic reinforcement and shear reinforcement by a composite material reinforcement device 1.

[0060] Therefore, by setting one or more central sections 10 according to the width of the construction surface, and setting a composite material reinforcement device 1 on the construction surface, the following advantages are achieved: not only can seismic reinforcement and shear reinforcement be effectively realized, but construction time can also be shortened.

[0061] The reinforcing part 20 is located at the upper and lower ends of the central part 10 and is integrally formed and covers the central part 10. It may include: a first plate 21, a second plate 22 and an extension part 23.

[0062] The first plate 21 is located at the upper end of the central part 10 and covers the upper part of the central part 10, and can be formed into a flat shape.

[0063] The second plate 22 can be bent in a manner corresponding to the shape of the central portion 10 and is located at the lower end of the central portion 10, thereby covering the lower part of the central portion 10.

[0064] The extension 23 can be formed by extending from both ends of the central portion 10 through the first plate 21 and the second plate 22 and joining them together.

[0065] Preferably, this reinforcing part 20 is a prepreg sheet formed by impregnating a fiber sheet containing one or more carbon fibers and glass fibers with a thermosetting resin. In this case, various thermosetting resins such as phenolic resin, epoxy resin, and polyester resin can be used as the thermosetting resin; phenolic resin is preferred, but not limited to this.

[0066] Furthermore, the reinforcement section 20 provides high-strength support at the lower end by applying low-cost glass fiber to the first plate 21 and higher-strength carbon fiber to the second plate 22, thereby providing a composite material reinforcement device 1 that can both increase strength and reduce cost.

[0067] In the reinforcement section 20 of this structure, the first plate 21 and the second plate 22 place the central section 10 in the middle and contact each other in the extension section 23 to form an integral unit, thereby not only strengthening the strength of the central section 10, but also forming a lightweight composite material reinforcement device 1.

[0068] At this time, when the composite material reinforcement device 1 is installed in the box-type concrete structure 2, it can be fixed in the part of the box-type concrete structure 2 that is susceptible to vibration, that is, in the state where the construction surface is in contact with the upper surface of the first plate 21.

[0069] Thus, the composite material reinforcement device 1 is more stably fixed to the construction surface by contacting the upper surface of the first plate 21, which is formed into a flat shape, with the construction surface and inserting an anchor into the extension 23.

[0070] Figure 4a and Figure 4b To show in Figure 1a and Figure 1b The cutting line forms a bottom view at 90° and 70° relative to the length direction; Figure 5 To illustrate the composite reinforcement device along Figure 4a A three-dimensional image showing the bending shape of the cutting lines; Figure 6 To illustrate the composite reinforcement device along Figure 4b A three-dimensional image showing the bending shape of the cutting lines; Figure 7a and Figure 7b To show Figure 5 A schematic diagram showing a composite material reinforcement device installed at the corner of a box-type concrete structure. Figure 8a and Figure 8b To show Figure 6 A schematic diagram showing a composite material reinforcement device installed at the corner of a box-type concrete structure. Figure 9a and Figure 9b This is a schematic diagram illustrating how a composite material reinforcement device according to an embodiment of the present invention is installed on a column of a box-type concrete structure.

[0071] Reference Figures 4a to 9b According to an embodiment of the present invention, the second plate 22 of the composite material reinforcement device 1 may include a cutting line 24 formed on the bottom surface. The cutting line 24 is a reference line for bending the composite material reinforcement device 1, and the composite material reinforcement device 1 bends around the cutting line 24, so it can also be provided in the bending portion of the construction surface in the box-type concrete structure 2.

[0072] More specifically, such as Figure 5 and Figure 6 As shown, the composite material reinforcement device 1 can be bent inward around the cutting line 24 to reinforce the bent parts in the box-shaped concrete structure 2, thereby increasing the effect of shear reinforcement.

[0073] In particular, the composite material reinforcement device 1 can be easily applied to parts with bends, such as beam-column joints and wall-base plate joints that are susceptible to earthquakes. For example, the composite material reinforcement device 1 can be continuously placed from the thickest plate A, which is most susceptible to earthquakes, to the corner B in a box-type concrete structure 2, thereby reinforcing the cross-sectional force of the corner B and achieving increased endurance and seismic reinforcement.

[0074] At this time, the cutting line 24 can be formed at an angle of 45° to 90° with respect to the length direction. Preferably, the cutting line 24 is formed at an angle of 68° to 75°, and most preferably, at 70°, but it is not limited thereto.

[0075] More specifically, through comparison Figure 7a and Figure 7b and Figure 8a and Figure 8b It can be confirmed that, compared to, Figure 5 The cutting line 24 shown is formed at a 90° angle in the composite material reinforcement device 1, as in... Figure 6 The composite material reinforcement device 1 with the cutting line 24 formed at 70° has a wider contact area with the thick plate A and the corner portion B. Therefore, the composite material reinforcement device 1 with the cutting line 24 formed at 70° has the following advantages: a larger contact area with the thick plate A and the corner portion B, resulting in a larger reinforcement area and thus improved reinforcement performance.

[0076] This composite material device 1 can not only reinforce the thick plate A and the corner portion B, such as Figure 9a and Figure 9b As shown, the columns of box-type concrete structure 2 can also be reinforced, such as... Figure 9a As shown, the bending of the cutting line 24 provides the advantage of extending from the column to the upper thick plate and reinforcing it.

[0077] Figures 10a to 10c This is a schematic diagram illustrating how the composite material reinforcement device according to an embodiment of the present invention extends its length through connecting components.

[0078] Reference Figures 10a to 10c According to an embodiment of the present invention, the composite material reinforcement device 1 may further include a connecting member 30, which connects a plurality of composite material reinforcement devices 1 to each other along the length direction so as to be able to extend along the length direction.

[0079] Preferably, the connecting member 30 is formed in the shape of a rod and is sized to be inserted into any one of the partition spaces S1.

[0080] This connecting component 30 can be joined between the two ends of one composite material reinforcement device 1 and another composite material reinforcement device 1. More specifically, as shown... Figure 10b As shown, one end of the connecting component 30 is inserted into the partitioned space S1 of a composite material reinforcement device 1, as... Figure 10c As shown, the other end is inserted into the partition space S1 of another composite material reinforcement device 1, thereby enabling a pair of composite material reinforcement devices 1 to be connected along the length direction, as shown. Figure 10c As shown. Preferably, at this time, the connecting component 30 is inserted into a partition space S1 located on the same line among the plurality of partition spaces S1, so that a pair of composite material reinforcement devices 1 can be connected flatly.

[0081] As described above, the composite material reinforcement device 1 is connected in multiple ways via connecting parts 30, thus having the advantage of being applicable to various construction sites, such as those with long lengths or large areas, according to the requirements of the construction worker.

[0082] Figure 11a and Figure 11b This is a schematic diagram showing the insertion of a connecting member when a fixing part is formed in the central part of the composite material reinforcement device according to an embodiment of the present invention. Figure 12a and Figure 12b To show in Figure 11a and Figure 11b The projection of the fixed rod having protrusions and the fixing grooves forming on the connecting parts, and the bottom projection of the fixed rod having protrusions and fixing grooves forming on the connecting parts. Figure 13a and Figure 13b To show in Figure 12a and Figure 12b A perspective view showing the shape of the connecting part and a cross-sectional view based on line A-A' are inserted in the middle.

[0083] Reference Figures 11a to 13b According to an embodiment of the present invention, the central part 10 of the composite material reinforcement device 1 may further include a fixing part 15, which is used to fix the connecting component 30.

[0084] A fixing part 15 is formed on the lower side of the partition space S1 and pushes the connecting member 30 inserted into the partition space S1 from the lower side. It may include a fixing rod 150 and a fixing spring 151.

[0085] First, the fixing rod 150 is formed along its length in the partitioned space S1, and its upper surface can contact the bottom surface of the connecting member 30 inserted into the partitioned space S1. Most preferably, at this time, the fixing rod 150 is formed at the position where the connecting member 30 is inserted into the partitioned space S1 and has the same length as the connecting member 30, so that its entire area contacts the connecting member 30, but is not limited thereto.

[0086] A fixed spring 151 is formed on the bottom surface of the partition space S1, and its upper end can be connected to the bottom surface of the fixed rod 150.

[0087] This fixing part 15 can cause the fixing rod 150 to move up and down as the fixing spring 151 expands or contracts.

[0088] Therefore, before the connecting member 30 is inserted into the partition space S1, the fixing spring 151 of the fixing part 15 is in an expanded state, and, as Figure 11a As shown, the fixing rod 150 can be located on the upper side. Then, the connecting member 30 presses the fixing rod 150 downwards while inserting it into the partition space S1, as shown. Figure 11b As shown, the connecting member 30, fully inserted into the partition space S1, is positioned in contact with the fixing rod 150. At this time, the fixing spring 151 supports it from below while the connecting member 30 and the fixing rod 150 are in contact, thereby fixing the connecting member 30 in the partition space S1 and preventing it from moving.

[0089] Furthermore, the upper surface of one end of the insertion connecting member 30 of the fixing rod 150 is formed in a bevel shape, thereby allowing the insertion of the connecting member 30 to be performed smoothly. However, this is not the only limitation.

[0090] The fixing part 15 may have a protrusion 1500 formed on the fixing rod 150 and a fixing groove formed on the connecting member 30, thereby preventing the connecting member 30 from detaching from the partition space S1 and increasing the fixing force.

[0091] Reference Figure 12a The protrusion 1500 is formed along the length direction on the upper surface of the fixed rod 150. Preferably, multiple regions are divided along the length direction and a protrusion is formed in each region, but it is not limited to this. At this time, the shape of the protrusion can be formed into various shapes such as triangle, quadrilateral, and circle.

[0092] Reference Figure 12b The fixing groove 31 is formed on the bottom surface of the connecting member 30 at a position corresponding to the fixing protrusion 1500. The fixing protrusion 1500 is combined with the fixing groove 31, thereby improving the fixing force of the connecting member 30 on the composite material reinforcement device 1.

[0093] Furthermore, depending on the ideal insertion length of the connecting member 30, the protrusion 1500 can be engaged with the fixing groove 31 at the corresponding position, thus also having the advantage of being able to adjust the insertion length of the connecting member 30. This solves the problem caused by the insertion degree being biased towards one of the two partitioned spaces S1 when the connecting member 30 is inserted into the partitioned spaces S1 of the composite material reinforcement device 1 located on both sides.

[0094] Figure 14a and Figure 14b To show in Figure 11a and Figure 11b The bottom perspective view and side sectional view show the fixed part having an up-and-down movable part and the movable part extending out of the movable hole. Figure 15a and Figure 15b To show in Figure 11a and Figure 11b A bottom perspective view and a side sectional view showing that the fixed part has an up-and-down movable part and the movable part is inserted into the movable hole; Figure 16a and Figure 16b To show, besides Figures 14a to 15b A schematic diagram of the bottom surface of the moving parts and moving holes of the leg.

[0095] Reference Figures 14a to 16b According to an embodiment of the present invention, the fixing part 15 of the composite material reinforcement device 1 may further include: an up-down moving part, which can adjust the position of the fixing rod 150 so that it can be inserted smoothly when the connecting member 30 is inserted into the partition space S1.

[0096] When the connecting member 30 is inserted into the internal space, the vertical moving part fixes the fixing rod 150 in a lower position by compressing the fixing spring 151. When the connecting member 30 is inserted into the partition space S1, the fixing rod 150 is positioned on the upper side by expanding the fixing spring 151 to increase the fixing force of the connecting member 30. The vertical moving part may include a moving member 152 and a moving hole 40.

[0097] The movable part 152 is formed on the bottom surface of the fixed rod 150 and can penetrate the bottom surface of the composite material reinforcement device 1. It may include: a head 1520, a main body 1521, a leg 1522 and a movable protrusion 1523.

[0098] The movable hole 40 can be formed on the bottom surface of the composite material reinforcement device 1 so that the movable part 152 can pass through it.

[0099] At this time, the fixed rod 150 can form an internal space S2 with the inside of the fixed rod being hollow, but it is not limited to this, and it can be formed such that only the part where the moving part 152 is located is hollow.

[0100] The head 1520 is formed in the shape of a plate and fixed within the internal space S2 of the fixing rod. It can be formed in various shapes such as circular, triangular, or quadrilateral, and is not limited to these. In this case, the head 1520 is formed to be larger than the main body 1521, which will be described below, so that it can be fixed within the internal space S2 of the fixing rod. Therefore, the head 1520 can be located within the internal space S2 of the fixing rod and fixed, allowing the moving part 152 to connect to the fixing rod 150 without detaching from it.

[0101] The main body 1521 can be formed in a cylindrical shape on the bottom surface of the head 1520 and located inside the fixing spring 151. In this case, the main body 1521 can be formed with its upper side penetrating the fixing rod 150 and its lower side penetrating the moving hole 40.

[0102] The leg 1522 can be formed in the form of a plate on the bottom surface of the main body 1521 and located on the bottom surface of the composite material reinforcement device 1. At this time, the leg 1522 can be formed to be larger than the moving hole 40 to prevent it from passing through the moving hole 40, and can be formed in various plate shapes such as circular, triangular, and quadrilateral, but is not limited to these.

[0103] The movable protrusion 1523 is formed on both sides of the main body 1521 and protrudes outward, passing through the movable hole 40 and then rotating and fixed to the bottom surface of the composite material reinforcement device 1. At this time, as... Figure 14a and Figure 14b As shown, the movable protrusion 1523 is formed into a quadrilateral, and preferably, the two sides of the movable hole 40 are formed into quadrilaterals that can adapt to the shape of the movable protrusion 1523.

[0104] The operation of the vertically moving part with the structure described above will be explained in detail below.

[0105] First, refer to Figure 14a and Figure 14b Before the connecting component 30 is inserted into the partition space S1, the moving component 152 is pulled downwards to compress the fixing spring 151 and position the fixing rod 150 while it is being pulled downwards. At this time, as... Figure 14a As shown, the movable protrusion 1523 can be located on the bottom surface of the composite material reinforcement device 1. More specifically, refer to... Figure 16a The movable protrusion 1523 is positioned in a direction perpendicular to the movable hole 40 to prevent it from being inserted into the movable hole 40.

[0106] In the state described above, the connecting member 30 is inserted into the partition space S1, and, as... Figure 15a and Figure 15b As shown, the moving part 152 is operated. More specifically, as... Figure 16bAs shown, the movable part 152 can rotate, positioning the movable protrusion 1523 in the same direction as the movable hole 40. Thus, the movable protrusion 1523 is inserted into the movable hole 40, and the upper surface of the leg 1522 is in contact with the bottom surface of the composite material reinforcement device 1. Consequently, the fixing spring 151 expands, causing the fixing rod 150 to move upwards via the head 1520, so that the upper surface of the fixing rod 150 is in contact with the bottom surface of the connecting part 30. At this time, by applying pressure downwards with the fixing rod 150 while supporting the connecting part 30, the connecting part 30 can be more securely fixed to the composite material reinforcement device 1.

[0107] The construction method of the composite material reinforcement device applicable to this type of box-shaped concrete structure 2 will be described in detail below.

[0108] Figure 17 A flowchart illustrating a construction method including a composite material reinforcement device according to an embodiment of the present invention is provided.

[0109] The construction method of the composite material reinforcement device 1 according to an embodiment of the present invention relates to a construction method for using a composite material reinforcement device on a box-type concrete structure 2, and may include: device preparation step S10, fixing step S20 and filling step S30.

[0110] First, the preparation step S10 of the device is: preparing one or more composite material reinforcement devices 1 to be installed on the box-type concrete structure 2. A detailed description of the composite material reinforcement device 1 has already been provided in the above description of the device, therefore a detailed explanation is omitted.

[0111] As described above, the composite material reinforcement device 1 can be manufactured by the following method: placing the central part 10 in the center, the first plate 21 and the second plate 22 respectively covering the upper and lower sides and joining them together in the extension part 23, and forming it into an integral shape under high temperature and high pressure in the above state.

[0112] At this point, the molding temperature can be 145℃ to 155℃, and the pressure can be 8 kgf / cm². 2 Up to 10 kgf / cm 2 Preferably, the molding temperature is 150℃ and the pressure is 9 kgf / cm. 2 However, this is not the only possibility. When the value is below the lower limit, the composite material reinforcement device 1 may not be able to form properly, which may lead to the separation of the central part 10 and the reinforcement part 20. When the value is above the upper limit, the durability of the reinforcement part 20 may be compromised, which is therefore undesirable.

[0113] The fixing step S20 is a step of fixing the composite material reinforcement device 1 to the box-type concrete structure 2 using anchors. More specifically, in the fixing step S20, the construction surface can be chipped with concrete, and the composite material reinforcement device 1 can be placed at that location. At this time, the composite material reinforcement device 1 can be positioned with the upper surface of the first plate 21 in contact with the construction surface. Then, anchors are installed from the bottom surface of the extension 23 of the composite material reinforcement device 1, penetrating the construction surface. At this time, multiple anchors are installed along the length of the aforementioned extension of the composite material reinforcement device 1 to firmly fix the composite material reinforcement device 1 to the construction surface.

[0114] Finally, the filling step S30 is a step of filling the internal space of the composite material reinforcement device 1 with reinforcement material. At this time, various materials such as polyurethane foam filled by foaming can be used as reinforcement material. Thus, by filling the partitioned space S1 with reinforcement material, the strength of the composite material reinforcement device 1 is increased. Preferably, polyurethane foam is filled according to the position of the partitioned space S1; that is, a stronger rigid polyurethane foam is filled in the central side, and a lighter soft polyurethane foam is filled at both ends, but this is not limited to this. As described above, filling the partitioned space S1 with either rigid or soft polyurethane foam according to its position provides the advantage of being lightweight while still increasing strength.

[0115] At this time, the construction method of the composite material reinforcement device 1 according to the embodiment of the present invention may further include a bending and forming step after the device preparation step S10.

[0116] The bending and forming step is as follows: using the cutting line 24 as a reference, the composite material reinforcement device 1 is bent, thereby extending the composite material reinforcement device 1 from the corner B of the box-type concrete structure 2 to the thick plate A. A detailed explanation of this has already been given above and is therefore omitted.

[0117] As described above, in the bending and forming step, since the composite material reinforcement device 1, which bends with the cutting line 24 as the reference, is continuously placed from the thick plate A to the corner B, the effect of shear reinforcement can be increased.

[0118] Furthermore, the construction method of the composite material reinforcement device 1 according to an embodiment of the present invention may further include a connection step after the device preparation step S10.

[0119] The connection step involves inserting the connecting component 30 into the partition space S1 to connect multiple composite material reinforcement devices to each other along the length direction, thereby enabling them to extend along the length direction. More specifically, in the connection step, the composite material reinforcement device 1 is extended along the length direction by connecting the two ends of one composite material reinforcement device 1 to another composite material reinforcement device 1 and inserting the connecting component 30 into any one of the partition spaces S1 in the central portion 10 of each composite material reinforcement device 1.

[0120] The embodiments of the present invention have been described in detail above, but the scope of the present invention is not limited thereto. Various modifications and improvements made by those skilled in the art based on the basic concepts of the present invention as defined in the claims are within the scope of the present invention.

[0121] Explanation of reference numerals in the attached figures:

[0122] 1: Composite material reinforcement device

[0123] 10: Central Department

[0124] 11: Border section

[0125] 12: Partition section

[0126] 15: Fixing part

[0127] 150: Fixed rod

[0128] 1500: Protrusion

[0129] 151: Fixed Spring

[0130] 152: Moving parts

[0131] 1520: Head

[0132] 1521: Main body

[0133] 1522: Legs

[0134] 1523: Moving Protrusion

[0135] 20: Reinforcement Section

[0136] 21: First board

[0137] 22: Second board

[0138] 23: Extension

[0139] 24: Cutting line

[0140] 30: Connecting components

[0141] 31: Fixing slot

[0142] 40: Moving hole

[0143] 2: Box-type concrete structure

[0144] A:Thick plate

[0145] B: Corner

[0146] S1: Zoning Space

[0147] S2: The internal space of the fixed rod.

Claims

1. A composite material reinforcement device, formed with a length in the front-rear direction to achieve seismic reinforcement of a box-type concrete structure, comprising: The central portion includes: a border portion having an internal space with a trapezoidal cross-section centered along its length; a partition portion dividing the internal space into at least one zoned space; and The reinforcing part is located at the upper and lower ends of the central part, is integrally formed, and covers the central part. The reinforcing part includes: The first plate is located at the upper end of the central part and covers the upper part of the central part; The second plate is bent in a manner corresponding to the shape of the central portion and is located at the lower end of the central portion, thereby covering the lower part of the central portion; An extension portion, which extends from both ends of the central portion and joins with each other via the first plate and the second plate; and Connecting components that link multiple composite reinforcement devices together along their length to allow for extension along the length direction. The connecting component, Formed in the shape of a rod and joined between the two ends of one composite material reinforcement device and another, it can be inserted into any one of the designated spaces in the central part of each composite material reinforcement device. The central section also includes: A fixing part is formed on the lower side of the partition space and pushes the connecting member inserted into the partition space from the lower side to fix the connecting member. The fixing part includes: A fixing rod, formed along its length in the defined space, with its upper surface contacting the bottom surface of the connecting member; and Multiple fixed springs are formed on the bottom surface of the partitioned space, and their upper ends are connected to the bottom surface of the fixed rod.

2. The composite material reinforcement device according to claim 1, characterized in that, The composite material reinforcement device is configured such that, An anchor is inserted into the extension while the upper surface of the first plate is in contact with a vibration-sensitive part of the box-shaped concrete structure.

3. The composite material reinforcement device according to claim 1, characterized in that, The second plate includes: The cutting line formed on the bottom surface, The composite material reinforcement device bends around the cutting line, thus enabling it to be installed at the bend of the box-shaped concrete structure.

4. The composite material reinforcement device according to claim 1, characterized in that, The central portion is made of aluminum alloy. The reinforcing part is a prepreg sheet impregnated with a thermosetting resin in a fiber sheet containing one or more of carbon fibers and glass fibers.

5. The composite material reinforcement device according to claim 1, characterized in that, The central portion is configured as multiple portions and can extend in the width direction.

6. The composite material reinforcement device according to claim 1, characterized in that, The fixing rod, Its upper surface is divided into multiple regions along the length direction, and a fixed protrusion is formed in each region. The connecting component forms a fixing groove on its bottom surface at a position corresponding to the fixing protrusion, and the fixing protrusion engages with the fixing groove, thereby increasing the fixing force of the connecting component on the composite material reinforcement device.

7. The composite material reinforcement device according to claim 1, characterized in that, The fixing part also includes: The vertically movable part can fix the fixing rod in a downward position by compressing the fixing spring, or it can fix the fixing rod in an upward position by expanding the fixing spring to increase the fixing force of the connecting component. The vertically movable part includes: A movable component, formed on the bottom surface of the fixed rod, and formed to penetrate the bottom surface of the composite material reinforcement device; and A movable hole is formed on the bottom surface of the composite material reinforcement device to allow the movable component to pass through.

8. The composite material reinforcement device according to claim 7, characterized in that, The fixing rod, It forms an internal space with a hollow fixed rod. The movable component includes: The head is formed in a plate shape and is located in the internal space of the fixing rod; The main body is cylindrically formed on the bottom surface of the head and located inside the fixing spring. The upper side of the main body penetrates the bottom surface of the fixing rod, and the lower side penetrates the moving hole. Legs, which are formed in a plate shape on the bottom surface of the main body and located on the bottom surface of the composite material reinforcement device; and A movable protrusion is formed on the side of the main body, which can rotate and be fixed to the bottom surface of the composite material reinforcement device after passing through the movable hole.

9. A construction method for a composite material reinforcement device for seismic reinforcement of box-type concrete structures, comprising: Preparation steps of the device: Prepare one or more composite material reinforcement devices, wherein the composite material reinforcement device includes: a central part, which includes: a frame part, which is formed to have an internal space with a trapezoidal cross-section centered on the length direction; a partition part, which divides the internal space into at least one zone space; and a reinforcement part, which is located at the upper and lower ends of the central part and is integrally formed and covers the central part. Fixing steps: With the upper surface of the first plate in contact with the vibration-sensitive portion of the box-type concrete structure, the composite material reinforcement device is fixed to the box-type concrete structure using anchors; and Filling step: Fill the designated space with reinforcing material. The reinforcing part includes: The first plate is located at the upper end of the central part and covers the upper part of the central part; The second plate is bent in a manner corresponding to the shape of the central portion and is located at the lower end of the central portion, thereby covering the lower part of the central portion; An extension portion, which extends from both ends of the central portion and joins with each other via the first plate and the second plate; and Connecting components that link multiple composite reinforcement devices together along their length to allow for extension along the length direction. The connecting component, Formed in a rod shape and joined between the two ends of one composite material reinforcement device and another, it can be inserted into any one of the designated spaces in the central part of each composite material reinforcement device. The central section also includes: A fixing part is formed on the lower side of the partition space and pushes the connecting member inserted into the partition space from the lower side to fix the connecting member. The fixing part includes: A fixing rod, formed along its length in the defined space, with its upper surface contacting the bottom surface of the connecting member; and Multiple fixed springs are formed on the bottom surface of the partitioned space, and their upper ends are connected to the bottom surface of the fixed rod.

10. The construction method of the composite material reinforcement device according to claim 9, wherein, Following the preparation step of the device, the following is also included: Bending and forming step: With the cutting line as the center, bend the composite material reinforcement device so that the composite material reinforcement device can be installed in the bent part of the box-shaped concrete structure.

Images