A reinforcing assembly for a cross member

Abstract

The present application relates to the field of civil engineering structure reinforcement technology, provide a kind of reinforcement combination device of crossbeam, including the bottom plate of being located in the bottom end of crossbeam and the U-shaped steel of being covered in the both sides of crossbeam, the lower end inner wall of U-shaped steel is connected with bottom plate, the both sides of crossbeam are fixed with multiple symmetrical distribution of anchoring device, pre-stressed tendon is arranged between matched anchoring device, the bottom end of part U-shaped steel is provided with receiving plate, the both sides of receiving plate upper end are detachably connected with connecting plate two, the adjusting assembly is arranged on connecting plate two, the hook No.2 for hooking pre-stressed tendon is fixedly connected on the adjusting assembly, the both sides of receiving plate are also detachably connected with extension plate, and the upper end of extension plate is all in abutment with U-shaped steel, and the adsorption assembly for fixing receiving plate is arranged between receiving plate and U-shaped steel.The present application has the advantages of reinforcement synergistic combination, improves reinforcement reliability and structural performance, strong adaptability, less space occupied.

Description

Technical Field

[0001] This invention relates to the field of civil engineering structure reinforcement technology, and in particular to a reinforcement combination device for beams. Background Technology

[0002] As the construction industry shifts from large-scale new construction to a focus on both renovation and reinforcement, existing beams often exhibit problems such as insufficient load-bearing capacity, crack development, decreased stiffness, and loose joint connections due to factors like long service life, increased loads, disaster damage, and environmental corrosion. These beams fail to meet current specifications and urgently require reinforcement. As core transverse components in a structure, beams primarily support decks and floors, bear the weight of cargo and equipment, and transfer loads to the columns or foundations below. Their reinforcement directly impacts the stability of the entire structure. External steel reinforcement is a common method for beam reinforcement. The core principle involves wrapping reinforced concrete beams with steel profiles, using high-performance epoxy structural adhesives and other bonding materials to create a collaborative load-bearing system between the steel profiles and the original beam.

[0003] However, in the initial stage of installing the steel profiles (the steel profiles used in the external bonding steel profile reinforcement method), it is necessary to use rods to abut the steel profiles, temporarily fix the steel profiles and tightly adhere them to the surface of the original beam to prevent the steel profiles from falling off due to their own weight or external forces. This temporary abutment fixation needs to continue until the adhesive material (such as epoxy structural adhesive) is completely cured. Multiple abutment rods need to be arranged along the length of a single beam. Temporary supports need to be erected on site, the tightening force needs to be repeatedly adjusted, and the position of the rods needs to be fixed. The process is cumbersome and time-consuming. Moreover, before the adhesive is completely cured, all abutment rods cannot be removed, which will occupy construction space, interfere with subsequent construction processes, and significantly prolong the overall reinforcement period.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a beam reinforcement combination device to overcome the shortcomings in current practical applications. Summary of the Invention

[0005] The purpose of this invention is to provide a beam reinforcement assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A beam reinforcement assembly includes a base plate at the bottom of the beam and U-shaped steel covering both sides of the beam. The inner wall of the lower end of the U-shaped steel is connected to the base plate. Multiple symmetrically distributed anchoring devices are fixedly installed on both sides of the beam. Prestressed tendons are arranged between pairs of anchoring devices. A receiving plate is provided at the bottom of part of the U-shaped steel. Connecting plates are detachably connected to both sides of the upper end of the receiving plate. A height adjustment component is provided on the connecting plate. A hook for hooking the prestressed tendons is fixedly connected to the height adjustment component. Extension plates are also detachably connected to both sides of the receiving plate, and the upper ends of the extension plates abut against the U-shaped steel.

[0007] A further technical solution includes an adsorption assembly for fixing the receiving plate between the receiving plate and the U-shaped steel; a slot is provided on both sides of the receiving plate, a clip is fixedly connected to one end of the extension plate and the clip is inserted into the slot, and a slot is also provided on the other end of the extension plate.

[0008] A further technical solution is provided where both sides of the receiving plate are provided with sliding grooves, and the inner walls of the sliding grooves are fixedly connected with limit rods. The outer walls of the limit rods are slidably connected with sliders, and the sliders are slidably connected to the inner walls of the sliding grooves. The upper end of the sliders is provided with slots, and the lower end of the corresponding connecting plate is fixedly connected with heads. The heads are inserted into the slots, and the heads and slots are locked together by a pin.

[0009] A further technical solution involves fixing connecting plates to both sides of the U-shaped steel located in the middle of the crossbeam. Each connecting plate is fixedly connected to a hook by double nuts, and the hook hooks the corresponding prestressing tendons. The hooks, prestressing tendons, and anchoring devices work together to apply a force to the crossbeam that is opposite to the direction of the load.

[0010] A further technical solution is provided, wherein the height adjustment component includes a slide groove, a threaded rod, and a slider; a slide groove is provided on each of the connecting plates, a threaded rod is rotatably connected in the slide groove, and a turntable is fixedly connected to the upper end of the threaded rod through the inner wall of the slide groove, a slider is slidably connected to the inner wall of the slide groove, and the slider is threadedly connected to the threaded rod, and the slider is fixedly connected to one end of the hook.

[0011] In a further technical solution, a hollow threaded rod is fixedly sleeved on the outer wall of the upper end of the threaded rod, and a nut is threadedly connected to the outer wall of the hollow threaded rod.

[0012] A further technical solution is provided, wherein the adsorption component includes a receiving groove, a suction cup, and a fixing plate; the receiving plate is provided with a receiving groove, the inner wall of the receiving groove is rotatably connected to the fixing plate, the suction cup is fixedly connected to the fixing plate, and the adsorption end of the suction cup is adsorbed and fixedly connected to the bottom end of the U-shaped steel.

[0013] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. By adjusting the height of the lifting hook two through the height adjustment component, the hook tension with the prestressing tendon is achieved, which in turn drives the support plate and extension plate to push the U-shaped steel and the base plate upward. Through the cooperation of the support plate and extension plate, the problem of incomplete coverage caused by excessive beam length can be effectively avoided. The U-shaped steel and the base plate are temporarily and stably fixed before the adhesive cures, avoiding the problems of space occupation and interference with subsequent construction that exist with traditional temporary supports. 2. After the adhesive has cured, the bonding plate, connecting plate 2, and extension plate of the U-shaped steel and the base plate are removed, while hook 1, prestressing tendons, and anchoring devices are retained. The external prestressing reinforcement of the U-shaped steel and the base plate, together with connecting plate 1, hook 1, prestressing tendons, and anchoring devices, actively improves the stress state of the beam, thereby achieving synergistic effect between external steel reinforcement and external prestressing reinforcement, significantly improving the bending and shear bearing capacity of the beam, and thus improving the reliability of the reinforcement. 3. The adsorption component restricts the receiving plate to the lower end of the U-shaped steel, effectively preventing the receiving plate from falling. This eliminates the need for manual support of the receiving plate during the subsequent installation of the height adjustment component and extension plate. Furthermore, the receiving plate can rotate within the receiving groove via the fixing plate, allowing for flexible adjustment of the angle of the receiving plate and effectively ensuring that the end of the connecting plate closest to the crossbeam is tightly fitted to the crossbeam.

[0014] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the three-dimensional structure viewed from below; Figure 3 For the present invention Figure 2 A three-dimensional structural diagram of the middle section; Figure 4 This is a three-dimensional structural diagram of the receiving plate portion of the present invention; Figure 5 For the present invention Figure 4 Exploded view of the three-dimensional structure.

[0016] In the diagram: 1. Crossbeam; 2. Base plate; 3. U-shaped steel; 4. Connecting plate one; 5. Hook one; 6. Prestressed tendon; 7. Anchoring device; 8. Support plate; 9. Connecting plate two; 10. Hook two; 11. Height adjustment component; 1101. Slide groove one; 1102. Threaded rod one; 1103. Slider one; 1104. Hollow threaded rod; 1105. Nut; 12. Extension plate; 13. Adsorption component; 131. Receiving groove; 132. Suction cup; 133. Fixing plate; 14. Slide groove two; 15. Limiting rod; 16. Slider two. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0019] like Figures 1-5 As shown, this embodiment of the invention provides a reinforcement assembly for a crossbeam, including a base plate 2 at the bottom of the crossbeam 1 and U-shaped steel 3 covering both sides of the crossbeam 1. The lower inner wall of the U-shaped steel 3 is connected to the base plate 2. Both the U-shaped steel 3 and the base plate 2 are bonded to the crossbeam 1 with adhesive to form an integral load-bearing structure. Multiple symmetrically distributed anchoring devices 7 are fixedly installed on both sides of the crossbeam 1. Prestressed tendons 6 are provided between pairs of anchoring devices 7. A receiving plate 8 is provided at the bottom of part of the U-shaped steel 3. Connecting plates 9 are detachably connected to both sides of the upper end of the receiving plate 8. A height adjustment component 11 is provided on the connecting plate 9. A hook 10 for hooking the prestressed tendons 6 is fixedly connected to the height adjustment component 11. Extension plates 12 are also detachably connected to both sides of the receiving plate 8, and the upper ends of the extension plates 12 abut against the U-shaped steel 3.

[0020] In this embodiment of the invention, the height of the second hook 10 is adjusted by adjusting the height component 11 to achieve hook tension with the prestressing tendon 6, thereby driving the supporting plate 8 and the extension plate 12 to push the U-shaped steel 3 and the base plate 2 upward. The cooperation of the supporting plate 8 and the extension plate 12 can effectively avoid the problem of incomplete coverage due to the excessive length of the crossbeam 1, and achieve temporary stable fixation of the U-shaped steel 3 and the base plate 2 before the adhesive cures, avoiding the problems of space occupation and interference with subsequent construction that exist with traditional temporary supports. After the adhesive cures, the supporting plate 8, the second connecting plate 9 and the extension plate 12 are removed from the U-shaped steel 3 and the base plate 2, while the first hook 5, the prestressing tendon 6 and the anchoring device 7 are retained. The external prestressing reinforcement of the U-shaped steel 3 and the base plate 2, together with the first connecting plate 4, the first hook 5, the prestressing tendon 6 and the anchoring device 7, actively improves the stress state of the crossbeam 1, thereby achieving synergistic effect of external steel reinforcement and external prestressing reinforcement, greatly improving the bending and shear bearing capacity of the crossbeam 1, and thus improving the reliability of the reinforcement.

[0021] Furthermore, an adsorption assembly 13 for fixing the receiving plate 8 is provided between the receiving plate 8 and the U-shaped steel 3, thereby facilitating the installation of the extension plate 12 and the connecting plate 9; both sides of the receiving plate 8 are provided with a slot 1 (not marked in the figure), one end of the extension plate 12 is fixedly connected to a clip 1 (not marked in the figure), and the clip 1 is inserted into the slot 1, and the other end of the extension plate 12 is also provided with a slot 1, so that it can be inserted into the clip 1 on the adjacent extension plate 12, thereby extending the length of the extension plate 12 and avoiding the problem of incomplete coverage of the extension plate 12 due to the excessive length of the crossbeam 1.

[0022] Furthermore, both sides of the receiving plate 8 are provided with sliding grooves 14. The inner walls of the sliding grooves 14 are fixedly connected with limiting rods 15. The outer walls of the limiting rods 15 are slidably connected with sliders 16. The sliders 16 are slidably connected to the inner walls of the sliding grooves 14. The upper end of the sliders 16 is provided with a slot (not shown in the figure). The lower end of the corresponding connecting plate 9 is fixedly connected with a head (not marked in the figure). The head is inserted into the slot, and the head and the slot are locked together by a pin (not marked in the figure).

[0023] Specifically, the slider 2 16 is pushed to slide along the outer wall of the limiting rod 15 to the side wall of the crossbeam 1, which can adapt to crossbeams 1 of different widths. Then, the clip 2 on the connecting plate 2 9 is inserted into the clip 2 of the slider 2 16 and fixed by the pin. Then, the lifting hook 2 10 is driven to rise and fall by the height adjustment component 11.

[0024] Furthermore, connecting plates 4 are fixedly connected to both sides of the U-shaped steel 3 located in the middle of the crossbeam 1. Each connecting plate 4 is fixedly connected to a hook 5 by a double nut, and the hook 5 hooks the corresponding prestressed tendon 6.

[0025] Specifically, the hook 5, prestressing tendon 6 (e.g., high-strength steel bars), and anchoring device 7 are tensioned in a coordinated manner to apply a force opposite to the direction of the load to the beam 1, thereby actively improving the stress state of the beam 1. This method belongs to the "external prestressing reinforcement method for concrete beams" in the prior art. In actual use, the beam 1 will be subjected to external loads (such as its own weight, the weight of the upper load, external impact, etc.). This load will cause the beam 1 to deflect downwards. The prestressing tendon 6 will be tensioned to prevent it from deforming downwards. The prestressing tendon 6 applies a force opposite to the direction of the load to the beam 1, offsetting part of the downward bending moment generated by the load, significantly improving the overall stress state of the beam 1, enhancing the bending and shear bearing capacity and structural durability of the beam 1, and ensuring the long-term stable operation of the beam 1.

[0026] It is understood that in the externally bonded steel reinforcement structure, the base plate 2 is laid out along the length of the beam 1 and flatly adheres to the bottom surface of the beam 1. Epoxy structural adhesive is applied between the inner side of the U-shaped steel 3 and the upper surface of the base plate 2 and the outer surface of the beam 1, respectively, so that the beam 1, the base plate 2, and the U-shaped steel 3 are bonded and cured into a whole, working together to withstand bending moment and shear force, thereby achieving external reinforcement of the beam 1. The anchoring device 7 is existing technology and is used to fix and tighten the prestressing tendons 6, which will not be described in detail here. The number and distribution of the U-shaped steel 3 can be adjusted according to the length of the beam 1, and the number and distribution of the supporting plates 8 can also be adjusted adaptively according to the length of the beam 1. The length and number of the corresponding extension plates 12 on each supporting plate 8 can also be adjusted adaptively according to the length of the beam 1 to ensure the temporary fixing effect.

[0027] like Figure 4 and Figure 5 As shown, the height adjustment component 11 includes a slide groove 1101, a threaded rod 1102, and a slider 1103; the connecting plate 2 9 is provided with a slide groove 1101, the threaded rod 1102 is rotatably connected in the slide groove 1101, and the upper end of the threaded rod 1102 passes through the inner wall of the slide groove 1101 and is fixedly connected to a turntable (not marked in the figure), the slider 1103 is slidably connected to the inner wall of the slide groove 1101, and the slider 1103 is threadedly connected to the threaded rod 1102, and the slider 1103 is fixedly connected to one end of the hook 2 10.

[0028] Furthermore, a hollow threaded rod 1104 is fixedly sleeved on the outer wall of the upper end of the threaded rod 1102, and a nut 1105 is threadedly connected to the outer wall of the hollow threaded rod 1104.

[0029] Specifically, rotating the turntable causes the threaded rod 1102 to rotate, which in turn causes the slider 1103 to rise and fall along the slide groove 1101. The slider 1103 then causes the hook 2 10 to rise and fall, thereby adjusting the height of the hook 2 10 until the hook 2 10 hooks the corresponding prestressed tendon 6. After adjustment, tighten the nut 1105 (at this time, the nut 1105 abuts against the upper surface of the connecting plate 2 9 and maintains a certain pressure), which can fix the position of the threaded rod 1102 and improve the reliability of the fixation.

[0030] like Figure 4 and Figure 5 As shown, the adsorption assembly 13 includes a receiving groove 131, a suction cup 132, and a fixing plate 133; the receiving plate 8 has a receiving groove 131, the inner wall of the receiving groove 131 is rotatably connected to the fixing plate 133, the suction cup 132 is fixedly connected to the fixing plate 133, and the adsorption end of the suction cup 132 is adsorbed and fixedly connected to the bottom end of the U-shaped steel 3.

[0031] Specifically, the upper end of the receiving plate 8 abuts against the lower end of the U-shaped steel 3, and then is fixed to the lower end face of the U-shaped steel 3 by suction cup 132 (e.g., using a Zuo Shi suction cup), thereby restricting the receiving plate 8 to the lower end of the U-shaped steel 3 and effectively preventing the receiving plate 8 from falling. This means that during the subsequent installation of the height adjustment component 11 and the extension plate 12, there is no need for manual support of the receiving plate 8. Furthermore, the receiving plate 8 can rotate within the receiving groove 131 through the fixing plate 133, allowing for flexible adjustment of the angle of the receiving plate 8 and effectively ensuring that the end of the connecting plate 2 9 closest to the crossbeam 1 can be tightly fitted to the crossbeam 1.

[0032] Understandably, suction cup 132 can be a Zuo-style suction cup, and its size and specifications must be compatible with the size of receiving groove 131.

[0033] The working principle of this invention is as follows: After the base plate 2 and U-shaped steel 3 are coated with adhesive, they are adhered to the crossbeam 1 and fixedly connected to the crossbeam 1 by anchor bolts. Then, the connecting plate 1 4, the hook 1 5, the prestressing tendon 6 and the anchoring device 7 are assembled. Next, the upper end of the receiving plate 8 is placed against the lower end of the U-shaped steel 3 and then fixed to the lower end face of the U-shaped steel 3 by suction cup 132. Then, the slider 2 16 is pushed to slide along the outer wall of the limiting rod 15 to the side wall of the crossbeam 1. Then, the clip 2 on the connecting plate 2 9 is inserted into the clip 2 of the slider 2 16 and fixed by the pin. Then, the lifting component 11 drives the hook 2 10 to rise and fall until the hook 2 10 hooks the corresponding prestressing tendon 6. Then, the extension plate 12 can be installed. Then, the lifting of the hook 2 10 is controlled to make it tensioned with the prestressing tendon 6. The hook 2 10 is subjected to an upward force, thereby driving the receiving plate 8 and the extension plate 12 to squeeze the U-shaped steel 3 and the base plate 2 upward, thereby preventing the U-shaped steel 3 and the base plate 2 from falling off. After the adhesive has cured, the second hook 10 is disengaged from the prestressed tendon 6 by adjusting the height component 11. Then the second connecting plate 9 is removed from the second slider 16, followed by the extension plate 12. After that, the adsorption component 13 and the receiving plate 8 are removed as a whole. Then the tension between the anchoring device 7 and the first hook 5 can be adjusted.

[0034] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reinforcing assembly for a crossbeam, comprising a base plate (2) disposed at the bottom end of a crossbeam (1) and U-shaped steel (3) covering both sides of the crossbeam (1), wherein the inner wall of the lower end of the U-shaped steel (3) is connected to the base plate (2), and a plurality of symmetrically distributed anchoring devices (7) are fixedly disposed on both sides of the crossbeam (1), and prestressed tendons (6) are disposed between pairs of anchoring devices (7), characterized in that, A support plate (8) is provided at the bottom of a portion of the U-shaped steel (3). A connecting plate (9) is detachably connected to both sides of the upper end of the support plate (8). A height adjustment component (11) is provided on the connecting plate (9). A hook (10) for hooking the prestressed tendon (6) is fixedly connected to the height adjustment component (11). An extension plate (12) is detachably connected to both sides of the support plate (8), and the upper end of the extension plate (12) abuts against the U-shaped steel (3).

2. The beam reinforcement assembly according to claim 1, characterized in that, An adsorption assembly (13) for fixing the receiving plate (8) is provided between the receiving plate (8) and the U-shaped steel (3); a slot is provided on both sides of the receiving plate (8); a card head is fixedly connected to one end of the extension plate (12), and the card head is inserted into the slot; a slot is also provided on the other end of the extension plate (12).

3. The beam reinforcement assembly according to claim 2, characterized in that, The receiving plate (8) has two sliding grooves (14) on both sides. The inner wall of the sliding groove (14) is fixedly connected to a limit rod (15). The outer wall of the limit rod (15) is slidably connected to a slider (16). The slider (16) is slidably connected to the inner wall of the sliding groove (14). The upper end of the slider (16) is provided with a slot. The lower end of the corresponding connecting plate (9) is fixedly connected to a head. The head is inserted into the slot, and the head and the slot are locked together by a pin.

4. The beam reinforcement assembly according to claim 1, characterized in that, A connecting plate (4) is fixedly connected to both sides of the U-shaped steel (3) located in the middle of the crossbeam (1). A hook (5) is fixedly connected to the connecting plate (4) by double nuts. The hook (5) hooks the corresponding prestressed tendon (6). The hook (5), prestressed tendon (6) and anchoring device (7) work together to tension the crossbeam (1) and apply a force opposite to the direction of the load.

5. The beam reinforcement assembly according to claim 3, characterized in that, The height adjustment component (11) includes a slide groove (1101), a threaded rod (1102), and a slider (1103). Each of the connecting plates (9) is provided with a sliding groove (1101). A threaded rod (1102) is rotatably connected in the sliding groove (1101). The upper end of the threaded rod (1102) passes through the inner wall of the sliding groove (1101) and is fixedly connected to a turntable. A slider (1103) is slidably connected to the inner wall of the sliding groove (1101). The slider (1103) is threadedly connected to the threaded rod (1102). The slider (1103) is fixedly connected to one end of the hook (10).

6. The beam reinforcement assembly according to claim 5, characterized in that, A hollow threaded rod (1104) is fixedly sleeved on the outer wall of the upper end of the threaded rod (1102), and a nut (1105) is threadedly connected to the outer wall of the hollow threaded rod (1104).

7. The beam reinforcement assembly according to claim 2, characterized in that, The adsorption assembly (13) includes a receiving groove (131), a suction cup (132) and a fixing plate (133); the receiving plate (8) has a receiving groove (131), the inner wall of the receiving groove (131) is rotatably connected to the fixing plate (133), the suction cup (132) is fixedly connected to the fixing plate (133), and the adsorption end of the suction cup (132) is adsorbed and fixedly connected to the bottom end of the U-shaped steel (3).

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