Detachable fiber reinforced sheet reinforced concrete column active restraint device

Abstract

The invention relates to the technical field of building concrete, and discloses a detachable fiber reinforced sheet reinforced concrete column active restraint device which comprises a concrete column body and is characterized in that a fiber reinforced sheet is arranged on the surface of the concrete column body, and a fixing mechanism is arranged on the surface of the fiber reinforced sheet; and a loading mechanism is arranged on the surface of the fixing mechanism. The detachable active restraining device for the fiber reinforced sheet reinforced concrete column has extremely high practical value, during actual construction, the detachable restraining device does not need to be subjected to complex field processing and fixing procedures during installation, fixing is conducted only through a simple connecting mode, the construction time can be greatly shortened, the construction efficiency is remarkably improved, and the construction cost is reduced. The method has the advantage of being particularly suitable for projects with high construction progress requirements, such as commercial building construction of a city center, and construction needs to be completed within limited time so as to reduce the influence on surrounding commercial activities.

Description

Technical Field

[0001] The invention relates to the technical field of building concrete, in particular to a detachable active restraining device for a concrete column reinforced with a fiber-reinforced sheet. Background Art

[0002] Fiber reinforced sheet reinforced concrete columns is a structural reinforcement technology widely used in the field of civil engineering. Fiber reinforced sheets have high tensile strength and elastic modulus. Wrapping them on the surface of concrete columns can provide effective lateral constraints on the internal concrete. Under axial pressure, the concrete column will produce lateral deformation. The restraining effect of the fiber reinforced sheet can limit this lateral deformation and put the concrete in a triaxial compression state, thereby improving the compressive strength and deformation capacity of the concrete. The fiber reinforced sheet is firmly bonded to the surface of the concrete column through epoxy resin, so that the fiber reinforced sheet and concrete can work together. When the concrete column is under load, the fiber reinforced sheet can share part of the load, reduce the burden on concrete and steel bars, and improve the overall bearing capacity of the column.

[0003] In the current field of building reinforcement, fiber reinforced sheet reinforced concrete column technology has been widely used due to its significant advantages. In the implementation of this technology, active restraint devices play a key role. They can effectively enhance the collaborative working performance between fiber reinforced sheets and concrete columns and improve the reinforcement effect. However, it is regrettable that there is a more prominent problem with the existing active restraint devices for fiber reinforced sheet reinforced concrete columns. When it comes to the disassembly of the device, its operation process is mostly extremely cumbersome. From the disassembly of complex connectors to the careful separation of components, each step requires construction workers to invest a lot of time and energy, which not only causes the disassembly work to be time-consuming, but also because disassembly-related operations need to be frequently performed during the construction process, which greatly increases the entire construction time. The extension of construction time will undoubtedly reduce construction efficiency, thereby increasing project costs, and may even affect the schedule of the entire project, bringing many inconveniences and troubles to the construction. Summary of the invention

[0004] The object of the present invention is to provide a detachable fiber reinforced sheet reinforced concrete column active restraint device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a detachable fiber-reinforced sheet reinforced concrete column active restraint device, comprising a concrete column body, a fiber-reinforced sheet is arranged on the surface of the concrete column body, a fixing mechanism is arranged on the surface of the fiber-reinforced sheet, and a loading mechanism is arranged on the surface of the fixing mechanism.

[0006] The loading mechanism includes a first support member, which is arranged on both sides of the surface of the fiber reinforced sheet. A connecting member is fixedly connected to the surface of the first support member, and a placement plate is fixedly connected between the two connecting members. The placement plates are symmetrically arranged, and threaded rods are threadedly connected to both sides of the two placement plates. A pulley group is transmission-connected to the surface of the threaded rod, one end of one of the threaded rods is fixedly connected to a motor, and a second support member is fixedly connected to the surface of the motor, the second support member is fixedly connected to the surface of the concrete column body, and the second support member is rotatably connected to the surface of the threaded rod.

[0007] Preferably, opposite threads are provided on the surface of the threaded rod, the threaded rod is arranged on one side of the concrete column body, the number of the threaded rods is two, the two threaded rods are of the same length, and during the rotation of the threaded rods on both sides, they will drive the first support members on both sides to move towards each other, and as the first support members gradually approach, the first support members on both sides can evenly and forcefully stretch the fiber reinforced sheet.

[0008] Preferably, a bonding plate is fixedly connected to the surface of the concrete column body by fixing bolts, and a support plate is fixedly connected to the side of the bonding plate facing away from the concrete column body. The support plates are arranged on both sides of the fiber reinforced sheet, and the first support member can be supported and fixed by the arranged support plates.

[0009] Preferably, a positioning plate is fixedly connected to the surface of the first support member, a second connecting plate is fixedly connected to the side of the positioning plate facing away from the first support member, a first connecting plate is fixedly connected to one side of the second connecting plate, the first connecting plate and the second connecting plate are vertically distributed, and a supporting force can be formed on the limiting rod by setting the first connecting plate and the second connecting plate.

[0010] Preferably, a limiting rod is inserted in the first connecting plate, a mounting piece is fixedly connected to the surface of the limiting rod, a limiting piece is fixedly connected to the surface of the mounting piece, and the limiting piece is fixedly connected to the surface of the concrete column body. When the first supporting member is moving, the first connecting plate slides on the surface of the limiting rod, thereby ensuring the stability of the first supporting member during movement.

[0011] Preferably, the fixing mechanism includes a first vertical plate, the first vertical plate is arranged on the inner surface of the fiber reinforced sheet, a second vertical plate is arranged on the surface of the first vertical plate, a clamping plate is arranged on the side of the second vertical plate away from the first vertical plate, a first mounting bolt is threadedly connected between the two second vertical plates, and a second mounting bolt is threadedly connected between the two first vertical plates.

[0012] Compared with the prior art, the present invention provides a detachable fiber-reinforced sheet reinforced concrete column active restraint device, which has the following beneficial effects:

[0013] 1. The detachable fiber-reinforced sheet reinforced concrete column active restraint device has extremely high practical value. In actual construction, the detachable device does not require complicated on-site processing and fixing procedures during installation. It can be fixed by a simple connection method, which can greatly shorten the construction time and significantly improve the construction efficiency. This advantage is especially suitable for projects with high requirements on construction progress, such as commercial building construction in the city center, which needs to be completed within a limited time to reduce the impact on surrounding commercial activities; and bridge construction at transportation hubs, which needs to be opened to traffic as soon as possible to relieve traffic pressure.

[0014] 2. The detachable fiber-reinforced sheet reinforced concrete column active restraint device can fix the fiber-reinforced sheet by wrapping the fiber-reinforced sheet on the surface of the first vertical plate and the second vertical plate, clamping the fiber-reinforced sheet by using a clamping plate, and then fixing the first mounting bolt and the second mounting bolt between the two adjacent second vertical plates and the first vertical plate, so as to make the fiber-reinforced sheet wrapped on the surface of the concrete column body have a pre-tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the loading mechanism of the present invention;

[0018] Figure 3 Based Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 It is a schematic diagram of the fixing mechanism of the present invention.

[0020] In the figure: 1. concrete column body; 2. loading mechanism; 21. support plate; 22. first support member; 23. connecting member; 24. threaded rod; 25. second support member; 26. motor; 27. placement plate; 28. bonding plate; 29. ​​mounting member; 201. first connecting plate; 202. second connecting plate; 203. positioning plate; 204. limiting rod; 205. limiting member; 3. fixing mechanism; 31. first vertical plate; 32. second vertical plate; 33. first mounting bolt; 34. clamping plate; 35. second mounting bolt; 4. fiber reinforced sheet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides a technical solution:

[0023] Embodiment 1:

[0024] Combination Figure 1 to Figure 2 -3, a detachable fiber reinforced sheet reinforced concrete column active restraint device, comprising a concrete column body 1, a fiber reinforced sheet 4 is arranged on the surface of the concrete column body 1, a fixing mechanism 3 is arranged on the surface of the fiber reinforced sheet 4, and a loading mechanism 2 is arranged on the surface of the fixing mechanism 3.

[0025] The loading mechanism 2 includes a first support member 22, and the first support members 22 are arranged on both sides of the surface of the fiber reinforced sheet 4. A connecting member 23 is fixedly connected to the surface of the first support member 22, and a placement plate 27 is fixedly connected between the two connecting members 23. The placement plates 27 are symmetrically arranged, and threaded rods 24 are threadedly connected to both sides of the two placement plates 27. A pulley group is transmission-connected to the surface of the threaded rods 24, and one end of one of the threaded rods 24 is fixedly connected to a motor 26. The surface of the motor 26 is fixedly connected to a second support member 25. The second support member 25 is fixedly connected to the surface of the concrete column body 1, and the second support member 25 is rotatably connected to the surface of the threaded rod 24.

[0026] Furthermore, opposite threads are provided on the surface of the threaded rod 24, and the threaded rod 24 is provided on one side of the concrete column body 1. Two threaded rods 24 are provided, and the two threaded rods 24 have the same length. During the rotation of the threaded rods 24 on both sides, they will drive the first support members 22 on both sides to move towards each other. As the first support members 22 gradually approach, the first support members 22 on both sides can evenly and forcefully extrude the fiber reinforced sheet 4.

[0027] Furthermore, a bonding plate 28 is fixedly connected to the surface of the concrete column body 1 by fixing bolts, and a support plate 21 is fixedly connected to the side of the bonding plate 28 facing away from the concrete column body 1. The support plates 21 are arranged on both sides of the surface of the fiber reinforced sheet 4. The first support member 22 can be supported and fixed by the arranged support plates 21.

[0028] Furthermore, a positioning plate 203 is fixedly connected to the surface of the first support member 22, a second connecting plate 202 is fixedly connected to the side of the positioning plate 203 facing away from the first support member 22, a first connecting plate 201 is fixedly connected to one side of the second connecting plate 202, the first connecting plate 201 and the second connecting plate 202 are vertically distributed, and the setting of the first connecting plate 201 and the second connecting plate 202 can form a supporting force for the limit rod 204.

[0029] Furthermore, a limiting rod 204 is inserted into the first connecting plate 201, and a mounting member 29 is fixedly connected to the surface of the limiting rod 204. A limiting member 205 is fixedly connected to the surface of the mounting member 29. The limiting member 205 is fixedly connected to the surface of the concrete column body 1. When the first supporting member 22 is moving, the first connecting plate 201 slides on the surface of the limiting rod 204, which can ensure the stability of the first supporting member 22 during movement.

[0030] Embodiment 2:

[0031] See also Figure 4 On the basis of the first embodiment, the fixing mechanism 3 further comprises a first vertical plate 31, the first vertical plate 31 is arranged on the inner surface of the fiber reinforced sheet 4, a second vertical plate 32 is arranged on the surface of the first vertical plate 31, a clamping plate 34 is arranged on the side of the second vertical plate 32 away from the first vertical plate 31, a first mounting bolt 33 is threadedly connected between the two second vertical plates 32, and a second mounting bolt 35 is threadedly connected between the two first vertical plates 31.

[0032] First, let's look at the concrete column restraint device. This device wraps the fiber-reinforced sheet 4 on the surface of the first vertical plate 31 and the second vertical plate 32, and then clamps the fiber-reinforced sheet 4 by using the clamping plate 34, and then fixes the first mounting bolt 33 and the second mounting bolt 35 between the two adjacent second vertical plates 32 and the first vertical plate 31, so that the fiber-reinforced sheet 4 wrapped on the surface of the concrete column body can obtain pre-tension;

[0033] When it is necessary to make the fiber reinforced sheet 4 actively restrain the concrete column body 1, the entire operation process is simple and efficient. The operator only needs to start the motor 26, and the motor 26 will drive one of the threaded rods 24 to rotate. The linkage effect formed by the pulley group is used here. The linkage mechanism can accurately drive the threaded rods 24 on both sides to rotate synchronously. During the rotation of the threaded rods 24 on both sides, they will drive the first support members 22 on both sides to move towards each other. As the first support members 22 gradually approach, the first support members 22 on both sides can stretch the fiber reinforced sheet 4 evenly and forcefully. During the stretching process, the operator further maintains the restraint effect by threading the mounting bolts 31 into the interior of the fiber reinforced sheet 4. At this time, the fiber reinforced sheet 4 can stably achieve the purpose of actively restraining the concrete column body 1. The detachable fiber-reinforced sheet reinforced concrete column active restraint device has extremely high practical value. In actual construction, the detachable device does not require complicated on-site processing and fixing procedures during installation. It can be fixed by a simple connection method, which can greatly shorten the construction time and significantly improve the construction efficiency. This advantage is especially suitable for projects with high requirements on construction progress, such as commercial building construction in the city center, which needs to be completed within a limited time to reduce the impact on surrounding commercial activities; and bridge construction at transportation hubs, which needs to be opened to traffic as soon as possible to relieve traffic pressure.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A detachable fiber-reinforced sheet reinforced concrete column active restraint device, comprising a concrete column body (1), characterized in that: The surface of the concrete column body (1) is provided with a fiber-reinforced sheet (4), the surface of the fiber-reinforced sheet (4) is provided with a fixing mechanism (3), and the surface of the fixing mechanism (3) is provided with a loading mechanism (2); The loading mechanism (2) comprises a first support member (22), the first support members (22) are arranged on both sides of the surface of the fiber reinforced sheet (4), the surface of the first support member (22) is fixedly connected with a connecting member (23), a placement plate (27) is fixedly connected between the two connecting members (23), the placement plates (27) are symmetrically arranged, both sides of the two placement plates (27) are threadedly connected with threaded rods (24), the surface of the threaded rods (24) is transmission-connected with a pulley group, one end of one of the threaded rods (24) is fixedly connected with a motor (26), the surface of the motor (26) is fixedly connected with a second support member (25), the second support member (25) is fixedly connected to the surface of the concrete column body (1), and the second support member (25) is rotatably connected to the surface of the threaded rod (24).

2. A detachable FRP reinforced concrete column active restraint device according to claim 1, characterized in that: The surface of the threaded rod (24) is provided with opposite threads. The threaded rod (24) is arranged on one side of the concrete column body (1). The number of the threaded rods (24) is two, and the two threaded rods (24) are of the same length.

3. The detachable fiber-reinforced sheet reinforced concrete column active restraint device according to claim 1, characterized in that: A bonding plate (28) is fixedly connected to the surface of the concrete column body (1) via fixing bolts, and a support plate (21) is fixedly connected to the side of the bonding plate (28) facing away from the concrete column body (1), and the support plate (21) is arranged in the fiber-reinforced sheet (4).

4. The detachable fiber-reinforced sheet reinforced concrete column active restraint device according to claim 1, characterized in that: A positioning plate (203) is fixedly connected to the surface of the first support member (22); a second connecting plate (202) is fixedly connected to the side of the positioning plate (203) facing away from the first support member (22); a first connecting plate (201) is fixedly connected to the side of the second connecting plate (202); and the first connecting plate (201) and the second connecting plate (202) are vertically distributed.

5. The detachable fiber-reinforced sheet reinforced concrete column active restraint device according to claim 4, characterized in that: A limiting rod (204) is inserted into the first connecting plate (201), a mounting member (29) is fixedly connected to the surface of the limiting rod (204), a limiting member (205) is fixedly connected to the surface of the mounting member (29), and the limiting member (205) is fixedly connected to the surface of the concrete column body (1).

6. The detachable fiber-reinforced sheet reinforced concrete column active restraint device according to claim 1, characterized in that: The fixing mechanism (3) comprises a first vertical plate (31), the first vertical plate (31) is arranged on the inner surface of the fiber reinforced sheet (4), a second vertical plate (32) is arranged on the surface of the first vertical plate (31), a clamping plate (34) is arranged on the side of the second vertical plate (32) away from the first vertical plate (31), a first mounting bolt (33) is threadedly connected between the two second vertical plates (32), and a second mounting bolt (35) is threadedly connected between the two first vertical plates (31).

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