Concrete beam shear-resistant reinforcing device with shape memory alloy strips

Abstract

The utility model discloses a concrete beam shear reinforcement device with shape memory alloy strips, and belongs to the technical field of concrete reinforcement. Comprising a plate frame, a screw fastener and a memory metal cylinder, the plate frame comprises two hinged frames which are symmetrically arranged up and down, screw cylinders are tightly welded to the end portions of the hinged frames located on the upper side, driving studs are rotationally connected to the end portions of the hinged frames located on the lower side, belt wheel discs are rotationally connected to the middle portions of the hinged frames located on the lower side, and the belt wheel discs and the driving studs are in friction transmission through synchronous belts. The screw fastener is hinged to one side of the hinge frame; the memory metal cylinders are fixedly connected to the side faces of the ends of the hinge frame located on the upper side. The plate frame of the shear structure wraps the outside of the beam body, so that the plate frame and the edge of the beam body are reinforced in an inclined supporting structure, and the stability of connecting and limiting of the plate frame is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of concrete reinforcement, and more specifically, to a concrete beam shear reinforcement device with shape memory alloy strips. Background Art

[0002] Concrete structures are a very common building structure in my country. Reinforced concrete beams, as a component of concrete structures, play an important role. In actual projects, due to design issues, construction problems, and changes in loads, reinforced concrete beams often suffer from insufficient shear bearing capacity. Failure during use can cause significant casualties and economic losses, making the reinforcement of reinforced concrete beams particularly important.

[0003] The document with the prior art disclosure (announcement) number CN220247707U provides a shear reinforcement device for reinforced concrete beams. In the related technology of this device, anti-slip grooves are provided on the outer wall of the abutment ring. By adopting the design of the anti-slip grooves, the friction between the abutment rings is increased. By rotating one of the abutment rings, the other connecting rings are driven to rotate simultaneously, and the upper abutment plate and the lower abutment plate are used to abut the beam to apply pressure, thereby improving the shear resistance of the reinforced concrete beam.

[0004] Although the above-mentioned existing technical solution can achieve the relevant beneficial effects through the structure of the existing technology, it still has the following defects: when the upper abutment plate and the lower abutment plate reinforce and protect the beam against the pressure, the upper abutment plate and the lower abutment plate are connected with the threaded rod and the threaded cylinder, which can easily cause excessive extrusion with the corners of the beam body, causing the abutment plate to bend.

[0005] In view of this, we propose a shear reinforcement device for concrete beams with shape memory alloy strips. Utility Model Content

[0006] In order to improve the problems raised in the above background technology, the present application provides a shear reinforcement device for concrete beams with shape memory alloy strips.

[0007] The concrete beam shear reinforcement device with shape memory alloy strips provided in this application adopts the following technical solution:

[0008] A shear reinforcement device for concrete beams with shape memory alloy strips, comprising:

[0009] Plate rack, screw fastener and memory metal cylinder;

[0010] The plate frame includes two hinged frames symmetrically arranged in an upper and lower manner, each end of the hinged frame on the upper side is tightly welded with a screw barrel, and each end of the hinged frame on the lower side is rotatably connected to a driving stud, and the middle part is rotatably connected to a pulley, and the pulley and the driving stud are frictionally driven by a synchronous belt;

[0011] The screw fastener is hingedly mounted on one side of the hinged frame;

[0012] The memory metal cylinder is fixedly connected to the side surfaces of each end portion of the hinge frame located on the upper side.

[0013] By adopting the above technical solution, the shear structure plate frame is wrapped around the outside of the beam body, so that the plate frame and the beam body edges are reinforced with an inclined support structure, thereby ensuring the stability of the plate frame connection limit, and the reinforced limit plate frame can further ensure the reinforcement and protection effect of the plate frame under the strength reinforcement of the memory metal tube, and the pulley and the drive stud are driven by synchronous belt friction, which can achieve a quick threaded connection effect of the plate frame.

[0014] As an optional solution to the technical solution of this application document, the middle part of the articulated frame is arranged in a disc-shaped structure.

[0015] By adopting the above technical solution, the disc-shaped structure can ensure that when the hinged frame is subjected to shear cross-force, the middle part thereof has stable strength support, thereby avoiding fracture caused by stress at the hinged joint.

[0016] As an optional solution of the technical solution of this application document, each end of the articulated frame located on the upper side is fixedly connected to a screw seat, and the internal thread of the screw seat is connected to a correction screw.

[0017] By adopting the above technical solution, the correction screw is used to insert and limit the memory metal tube, so as to realize the bending correction of the memory metal tube and ensure the flatness of the memory metal tube during use.

[0018] As an optional solution to the technical solution of this application document, the outer sleeve of the driving stud is provided with a corrugated compression sleeve, and the two ends of the corrugated compression sleeve with a spring ring installed inside are fixedly connected to pressure rings, one of which is fixedly connected to the hinged frame located on the lower side.

[0019] By adopting the above technical solution, the elastically reinforced corrugated compression sleeve is used to shield and protect the connection between the drive stud and the screw barrel, thereby ensuring the transmission effect of the drive stud.

[0020] As an optional solution of the technical solution of this application document, a torsion ramp groove is provided on the outside of the pulley, and an anti-slip groove is provided on the outside of the torsion ramp groove.

[0021] By adopting the above technical solution and utilizing the torsion bevel groove with anti-slip groove, it is possible to ensure that the pulley is more stable when rotated and adjusted by the wrench, thereby avoiding separation from the wrench engagement.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application utilizes a shear structure to wrap the plate frame around the outside of the beam body, so that the plate frame and the edges of the beam body are reinforced with an inclined support structure, thereby ensuring the stability of the plate frame connection limit, and the reinforced limit plate frame can further ensure the reinforcement and protection effect of the plate frame under the strength reinforcement of the memory metal tube, and the pulley and the drive stud are driven by synchronous belt friction, which can achieve a quick threaded connection effect of the plate frame.

[0024] 2. This application uses a correction screw to insert and limit the memory metal tube, thereby correcting the bending of the memory metal tube and ensuring the flatness of the memory metal tube during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure installation of a concrete beam shear reinforcement device with shape memory alloy strips disclosed in a preferred embodiment of the present application on the left side;

[0026] Figure 2 This is a bottom view schematic diagram of the overall structural installation of a concrete beam shear reinforcement device with shape memory alloy strips disclosed in a preferred embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the disassembled plate frame structure of a concrete beam shear reinforcement device with shape memory alloy strips disclosed in a preferred embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the pulley structure of a concrete beam shear reinforcement device with shape memory alloy strips disclosed in a preferred embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the structure of a corrugated compression sleeve of a concrete beam shear reinforcement device with shape memory alloy strips disclosed in a preferred embodiment of the present application;

[0030] Explanation of the numbers in the figure: 1. Plate frame; 2. Screw fastener; 3. Memory metal cylinder; 11. Articulated frame; 12. Screw cylinder; 13. Drive stud; 14. Pulley; 15. Screw seat; 16. Correction screw; 17. Corrugated compression sleeve; 18. Pressure ring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1-3The concrete beam shear reinforcement device with shape memory alloy strips in the embodiment of the present application includes: a plate frame 1, a screw fastener 2 and a memory metal cylinder 3;

[0033] The plate frame 1 includes two articulated frames 11 symmetrically arranged in an upper and lower manner. Each end of the upper articulated frame 11 is tightly welded with a screw barrel 12, while each end of the lower articulated frame 11 is rotatably connected to a driving stud 13, and the middle part is rotatably connected to a pulley plate 14, and the pulley plate 14 and the driving stud 13 are driven by friction of a synchronous belt.

[0034] The screw fastener 2 is hingedly mounted on one side of the hinged frame 11;

[0035] The memory metal cylinder 3 is fixedly connected to the side surfaces of each end portion of the hinge frame 11 located on the upper side.

[0036] The concrete beam shear reinforcement device with shape memory alloy strips utilizes the shear structure of the plate frame 1 to wrap around the outside of the beam body, so that the plate frame 1 and the edge of the beam body are reinforced in an inclined support structure, thereby ensuring the stability of the connection limit of the plate frame 1, and the reinforced limit plate frame 1 can further ensure the reinforcement and protection effect of the plate frame 1 under the strength reinforcement of the memory metal tube 3, and the pulley disc 14 and the drive stud 13 are driven by synchronous belt friction, which can achieve a quick threaded connection effect of the plate frame 1.

[0037] Reference Figure 3 and Figure 1 In the concrete beam shear reinforcement device with shape memory alloy strips recorded in the embodiment of the present application, the middle part of the articulated frame 11 is arranged in a disc-shaped structure.

[0038] The concrete beam shear reinforcement device with shape memory alloy strips can ensure that the center of the hinge frame 11 has stable strength support when shear forces cross by utilizing a disc-shaped structure, thereby avoiding fracture of the hinged portion due to stress.

[0039] Reference Figure 3 and Figure 1 In the concrete beam shear reinforcement device with shape memory alloy strips recorded in the embodiment of the present application, each end of the upper hinge frame 11 is fixedly connected to a screw seat 15, and the internal thread of the screw seat 15 is connected to a correction screw 16.

[0040] The concrete beam shear reinforcement device with shape memory alloy strips uses the correction screw 16 to insert and limit the memory metal tube 3, thereby correcting the bending of the memory metal tube 3 and ensuring the flatness of the memory metal tube 3 during use.

[0041] Reference Figure 5 and Figure 3In the shear reinforcement device for concrete beams with shape memory alloy strips recorded in the embodiment of the present application, a corrugated compression sleeve 17 is provided on the outside of the driving stud 13, and a pressure ring 18 is fixedly connected at both ends of the corrugated compression sleeve 17 with a spring ring installed inside, and one of the pressure rings 18 is fixedly connected to the hinged frame 11 on the lower side.

[0042] The concrete beam shear reinforcement device with shape memory alloy strips shields and protects the connection between the driving stud 13 and the screw barrel 12 by utilizing the elastically reinforced corrugated compression sleeve 17, thereby ensuring the transmission effect of the driving stud 13.

[0043] Working principle: When the plate frame 1 is placed on the outside of the beam for reinforcement, the operator manually adjusts the screw fastener 2 according to the width of the beam, driving the plate frame 1 to adjust the clamping width so that it fits the outside of the beam;

[0044] Next, the hinged frame 11 with the screw barrel 12 end in the plate frame 1 is placed on the upper part of the beam body, and the hinged frame 11 at the drive stud 13 end is threadedly connected to it, and the pulley 14 is rotated clockwise with a wrench to achieve synchronous threaded connection of multiple drive studs 13 and the screw barrel 12, and the plate frame 1 is firmly clamped on the outside of the beam body for reinforcement.

Claims

1. A shear reinforcement device for concrete beams with shape memory alloy strips, characterized in that: include: Plate frame (1), screw fastener (2) and memory metal cylinder (3); The plate frame (1) comprises two hinged frames (11) symmetrically arranged in an upper and lower manner, wherein each end of the hinged frame (11) on the upper side is tightly welded with a screw barrel (12), and each end of the hinged frame (11) on the lower side is rotatably connected to a driving stud (13), and the middle part thereof is rotatably connected to a pulley disc (14), and the pulley disc (14) and the driving stud (13) are frictionally driven by a synchronous belt; The screw fastener (2) is hingedly mounted on one side of the hinged frame (11); The memory metal cylinder (3) is fixedly connected to the side surfaces of each end of the hinge frame (11) located on the upper side.

2. The shear reinforcement device for concrete beams with shape memory alloy strips according to claim 1, characterized in that: The middle part of the articulated frame (11) is arranged in a disc-shaped structure.

3. The shear reinforcement device for concrete beams with shape memory alloy strips according to claim 1, characterized in that: Each end portion of the articulated frame (11) located on the upper side is fixedly connected to a screw seat (15), and the internal thread of the screw seat (15) is connected to a correction screw rod (16).

4. The shear reinforcement device for concrete beams with shape memory alloy strips according to claim 1, characterized in that: The driving stud (13) is provided with a corrugated compression sleeve (17) on the outside, and the corrugated compression sleeve (17) with a spring ring installed inside is fixedly connected to pressure rings (18) at both ends, wherein one of the pressure rings (18) is connected and fixed to the hinge frame (11) located at the lower side.

5. The shear reinforcement device for concrete beams with shape memory alloy strips according to claim 1, characterized in that: The pulley disc (14) is provided with a torsion bevel groove on the outside, and an anti-slip groove is provided on the outside of the torsion bevel groove.

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