Prefabricated concrete structure column connecting component

Abstract

This invention discloses a prefabricated concrete structural column connection component, relating to the field of concrete structure technology, including a concrete column; it also includes angle steel struts overlapping at the corners of the concrete column, with a notch in the middle of the angle steel strut, through which the angle steel strut is bent outward, and a bearing steel plate welded and fixed between the middle of two adjacent angle steel struts; and connecting plates located at both ends of the bearing steel plate, with positioning holes on both the upper and lower sides of the bearing steel plate, and a disassembly and assembly assembly installed on the connecting plate, through which the bearing steel plate is fixedly connected to the connecting plate; this invention, through the angle steel struts and tensioning bolts, can form a stable confinement and gathering effect on the connection node of the concrete column, effectively improving the stress distribution in the node area, avoiding excessive deformation of the node after being stressed, and improving the integrity and load-bearing capacity of the connection part.

Description

Technical Field

[0001] This invention relates to the field of concrete structure technology, specifically to a prefabricated concrete structural column connection component. Background Technology

[0002] Prefabricated concrete structures are an important structural form in modern construction engineering. They are mainly constructed by assembling and connecting prefabricated components on the construction site. Compared with traditional cast-in-place concrete structures, they have advantages such as faster construction speed, less construction waste, energy saving and environmental protection, which are in line with the development direction of my country's construction industrialization.

[0003] In the construction of prefabricated concrete structures, the connection between column components is a key link to ensure the stability and safety of the overall structure. Existing column connection nodes often face problems such as difficult positioning and complex installation operations during construction and assembly, which significantly affect the construction progress. At the same time, some connection structures lack integrity and are prone to node deformation and uneven stress distribution under load, which reduces the load-bearing capacity and seismic performance of the connection parts and makes it difficult to meet the usage requirements of prefabricated high-rise concrete structures. Therefore, it is necessary to improve the existing column connection components of prefabricated concrete structures. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated concrete structural column connection component to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated concrete structural column connecting component, comprising a concrete column; further comprising angle steel struts overlapping the corners of the concrete column, wherein the angle steel struts have a notch in the middle, and the angle steel struts are bent outward through the notch, and a bearing steel plate is welded and fixed between the middle of two adjacent angle steel struts; and connecting plates disposed at both ends of the bearing steel plate, wherein positioning holes are provided on the upper and lower sides of the bearing steel plate, and a disassembly and assembly assembly is installed on the connecting plate, wherein the bearing steel plate is fixedly connected to the connecting plate through the disassembly and assembly assembly; and a tensioning screw passing through the connecting plates, wherein the tensioning screw is used to gather the outwardly bent angle steel struts, and a linkage assembly is drivingly connected between the tensioning screw and the disassembly and assembly assembly.

[0006] Preferably, the disassembly and assembly assembly includes a worm gear rotatably connected to the end of the connecting plate away from the angle steel strut. Both the upper and lower ends of the worm gear are fixed with drive screws. A movable plate is threadedly connected to the outer side of the drive screw. A locking pin is fixed to the end of the movable plate away from the drive screw. The locking pin is slidably inserted into the positioning hole. A worm wheel is engaged on one side of the worm gear. The central shaft of the worm wheel is rotatably connected to the connecting plate.

[0007] Preferably, the linkage component includes a drive gear, which meshes with a transmission gear. An inner spline sleeve is fixedly sleeved in the middle of the transmission gear, and an outer spline is slidably sleeved inside the inner spline sleeve. The outer spline is fixedly sleeved with the tensioning screw. Limiting plates are rotatably connected to both ends of the central shaft of the drive gear. A fixing plate fixedly connected to the connecting plate is fixed at one end of the limiting plate. A one-way mechanism is provided between the worm gear and the drive gear.

[0008] Preferably, the one-way mechanism is a one-way coupling structure, and the two ends of the one-way mechanism are respectively connected to the worm and the drive gear.

[0009] Preferably, two optical rods are fixed on both the upper and lower sides of the connecting plate, and the movable plate is slidably sleeved with the optical rods.

[0010] Preferably, multiple tie plates are welded and fixed between two adjacent angle steel struts, and the multiple tie plates are distributed at equal intervals.

[0011] Preferably, a pulley is also fixed to the top end of the drive screw.

[0012] Preferably, rotating blocks are also fixedly sleeved on the outer side of the optical shaft at both ends of the worm gear, and the outer side of the rotating blocks is provided with anti-slip texture.

[0013] Preferably, the end of the inner spline cylinder away from the transmission gear is rotatably connected to a mounting cylinder, and one end of the mounting cylinder is fixedly connected to the connecting plate.

[0014] Preferably, locking nuts are fixed on both sides of the connecting plate, and the tensioning screw is threadedly connected to the locking nuts.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention uses angle steel struts in conjunction with tensioning bolts to form a stable binding and converging effect on the connection nodes of concrete columns, which can effectively improve the stress distribution in the node area, avoid excessive deformation of the node after being stressed, and improve the integrity and load-bearing capacity of the connection. This invention enables the quick positioning and locking of the connecting plate and the pressure-bearing steel plate through the disassembly and assembly of components. With the linkage component, the disassembly and assembly components can be driven to complete the locking operation simultaneously when the tightening screw gathers the angle steel support rod, simplifying the assembly steps, reducing the difficulty of positioning and installation, and improving the work efficiency of on-site construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the state of the angle steel struts after they have been gathered and tightened according to the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a side view of a partial structure of the present invention; Figure 5 This is a schematic diagram of the disassembly and assembly components of the present invention; Figure 6 This is a schematic diagram showing the relationship between the tension screw, the inner splined cylinder, and the outer spline of the present invention; Figure 7 This is a schematic diagram of the structure of the linkage component of the present invention; Figure 8 This is a schematic diagram of the worm and worm wheel of the present invention; Figure 9 for Figure 1 A schematic diagram of the structure from a top-down perspective.

[0017] In the diagram: 1. Concrete column; 2. Angle steel strut; 3. Bearing steel plate; 4. Connecting plate; 5. Positioning hole; 6. Assembly / disassembly assembly; 7. Tensioning screw; 8. Linkage assembly; 9. Worm gear; 10. Drive screw; 11. Moving plate; 12. Locking column; 13. Worm wheel; 14. Drive gear; 15. Transmission gear; 16. Internal splined cylinder; 17. External spline; 18. Limiting plate; 19. Fixing plate; 20. One-way mechanism; 21. Smooth rod; 22. Tie plate; 23. Pulley; 24. Rotating block; 25. Mounting cylinder; 26. Locking nut. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1-9 The diagram illustrates a prefabricated concrete structural column connection component, comprising a concrete column 1; angle steel struts 2 overlapping the corners of the concrete column 1, each angle steel strut 2 having a notch in its middle, through which it bends outward; a bearing steel plate 3 welded and fixed between the middle sections of two adjacent angle steel struts 2; connecting plates 4 located at both ends of the bearing steel plate 3, each bearing steel plate 3 having positioning holes 5 on its upper and lower sides; a disassembly assembly 6 installed on the connecting plate 4, the bearing steel plate 3 being fixedly connected to the connecting plate 4 via the disassembly assembly 6; and a tensioning screw 7 passing through the connecting plates 4, the tensioning screw 7 being used to gather the outwardly bent angle steel struts 2; and a linkage assembly 8 drivingly connecting the tensioning screw 7 and the disassembly assembly 6.

[0020] Multiple tie plates 22 are welded and fixed between two adjacent angle steel struts 2. The tie plates 22 are evenly distributed and can further improve the integrity between the multiple pressure-bearing steel plates 3, enhance the overall structural stability of the connecting components, and prevent the pressure-bearing steel plates 3 from deforming or misaligning during the stress process. Locking nuts 26 are fixed on both sides of the connecting plate 4. The tensioning screw 7 is threaded to the locking nuts 26. By turning the tensioning screw 7, the two connecting plates 4 can be driven to move closer to each other along the axial direction of the tensioning screw 7, thereby pushing the angle steel struts 2 to converge towards the concrete column 1, realizing the confinement and compression of the connection node of the concrete column 1, and ensuring the structural integrity of the node.

[0021] In this scheme, the angle steel strut 2 is bent and overlapped at the outer corner of the connection node of the concrete column 1. With the tensioning screw 7 penetrating the connection plate 4, the angle steel strut 2 is gradually gathered together, which can form a stable binding and clamping effect on the connection node of the concrete column 1, effectively constrain the deformation of the node area, make the stress distribution of the node area more uniform, and improve the overall bearing capacity and seismic performance of the connection part. At the same time, the assembly and disassembly components 6 drive the linkage components 8 to rotate the tensioning screw 7. During the process of adjusting the convergence force by turning the tensioning screw 7, the assembly and disassembly between the connecting plate 4 and the pressure-bearing steel plate 3 are automatically completed without the need for additional locking and separation operations. This simplifies the on-site assembly process, reduces the difficulty of positioning and installation, and effectively improves on-site construction efficiency.

[0022] The process of reinforcing prefabricated concrete structural columns: First, anchor bearing angle steel into both ends of the concrete column 1 in advance. Then, take two sets of angle steel struts 2 and cut notches in the middle web. Bend them outward at a certain angle in advance. Then, overlap the bent angle steel struts 2 on the outer corners of the connection nodes of the upper and lower concrete columns 1 in sequence. Then, weld bearing steel plates 3 at the upper, middle and lower positions of the angle steel struts 2. Then, install the connecting plate 4 at the end of the bearing steel plate 3 at the middle position of the angle steel struts 2. Align the disassembly and assembly components 6 and the positioning holes 5 and fix their positions. Before this, the tensioning screw 7 has passed through the two opposite connecting plates 4 and completed the initial assembly with the locking nut 26. Afterwards, multiple tie plates 22 are welded and fixed between two adjacent angle steel struts 2. The tie plates 22 can further improve the integrity between multiple bearing steel plates 3. Then, the construction workers gradually tighten the tension screw 7 by disassembling and assembling the component 6. The threads at both ends of the tension screw 7 turn in opposite directions. This will drive the two bearing steel plates 3 to move closer to each other through the locking nut 26 on the connecting plate 4. At the same time, it will drive the outward bending bearing angle steel to gather towards the concrete column 1 until the four angle steel struts 2 are evenly gathered at the edge of the concrete column 1 under the action of the tension screw 7. Finally, after the tightening is complete, the connecting plate 4 and the tensioning screw 7 can just detach from the pressure-bearing steel plate 3, as... Figure 2 As shown, steel plates are then welded to both ends of the pressure-bearing steel plate 3 for reinforcement, and multiple tie plates 22 are welded and fixed between the other two sides of the angle steel strut 2 to prevent the angle steel strut 2 from bursting under pressure. The operators also use tension screws 7 to tighten the pressure-bearing steel plate 3 located at the upper and lower positions of the angle steel strut 2.

[0023] It should be noted that since the bearing steel plate 3 and the angle steel strut 2 are not completely attached to the outer wall of the concrete column 1 after being gathered, the operator can inject structural adhesive into these gaps. After the structural adhesive cures, the gaps can be further filled, connecting the angle steel strut 2, the bearing steel plate 3 and the concrete column 1 into a whole, further improving the integrity and stress uniformity of the connection node, and completing the connection and reinforcement work of the prefabricated concrete structural column.

[0024] Example 2: Refer to Figures 3-7 As shown, this embodiment further explains the first embodiment, the difference being that the transmission structure of the disassembly and assembly component 6 is optimized, thereby simplifying the assembly steps.

[0025] Specifically, the disassembly and assembly assembly 6 includes a worm gear 9 rotatably connected to the end of the connecting plate 4 away from the angle steel support rod 2. Both the upper and lower ends of the worm gear 9 are fixed with drive screws 10. The outer side of the drive screw 10 is threadedly connected to a moving plate 11. The end of the moving plate 11 away from the drive screw 10 is fixed with a locking pin 12. The locking pin 12 is slidably inserted into the positioning hole 5. A worm wheel 13 is engaged on one side of the worm gear 9. The central axis of the worm wheel 13 is rotatably connected to the connecting plate 4.

[0026] The linkage component 8 includes a drive gear 14, which meshes with a transmission gear 15. An inner splined sleeve 16 is fixedly sleeved on the middle of the transmission gear 15. An outer spline 17 is slidably sleeved inside the inner splined sleeve 16 and fixedly sleeved with the tensioning screw 7. Limiting plates 18 are rotatably connected to both ends of the central shaft of the drive gear 14. A fixing plate 19, which is fixedly connected to the connecting plate 4, is fixed to one end of each limiting plate 18. A one-way mechanism 20 is provided between the worm gear 13 and the drive gear 14. The linkage component 8 enables the disassembly of the connecting plate 4 and the pressure plate 3 to be completed synchronously with the tightening screw 7, making the operation more convenient. The end of the inner spline cylinder 16 away from the transmission gear 15 is rotatably connected to the mounting cylinder 25. One end of the mounting cylinder 25 is fixedly connected to the connecting plate 4, which can provide stable support for the inner spline cylinder 16, ensuring the stability of the connection between the inner spline cylinder 16 and the transmission gear 15, avoiding the inner spline cylinder 16 from deflecting and shaking during transmission, and also allowing the inner spline cylinder 16 and the connecting plate 4 to move together.

[0027] In this scheme, after welding the pressure-bearing steel plate 3, the operator places connecting plates 4 at both ends of the pressure-bearing steel plate 3. At this time, tension screws 7 are already threaded between the connecting plates 4. Then, the worm gear 9 is rotated in the forward direction. The worm gear 9 drives the drive screw 10 to rotate, and the drive screw 10 drives the two moving plates 11 to move closer to each other, so that the locking pin 12 can slide into the positioning hole 5, realizing the fixed docking of the pressure-bearing steel plate 3 and the connecting plate 4. Due to the existence of the one-way mechanism 20, the linkage component 8 does not transmit power during the docking process of the connecting plate 4 and the pressure-bearing steel plate 3, that is, the tension screw 7 does not rotate. However, when the worm gear 9 is rotated in the reverse direction, the drive screw 10 will reverse, causing the locking pin 12 to move from the fixed position. The worm gear 9 gradually disengages from the hole 5, while the worm wheel 13 rotates through the worm gear 9. The worm gear 13 drives the drive gear 14 to rotate through the one-way mechanism 20. The drive gear 14 drives the transmission gear 15 to rotate. The transmission gear 15 drives the inner spline cylinder 16 to rotate. The inner spline cylinder 16 drives the tensioning screw 7 to rotate through the outer spline 17. After the tensioning screw 7 rotates, it can drive the two connecting plates 4 to move closer to each other, and at the same time realize the synchronous locking and gathering of the two angle steel support rods 2, which simplifies the operation steps during on-site assembly. In addition, the cooperation between the inner spline cylinder 16 and the outer spline 17 ensures that the outer spline 17 will never disengage from the inner spline cylinder 16 during the process of the tensioning screw 7 rotating and driving the connecting plate 4 to move, thus ensuring the stability of the power transmission.

[0028] In addition, the meshing structure of the worm 9 and worm wheel 13 in this solution has a self-locking characteristic. After the locking pin 12 is inserted into the positioning hole 5, it will not loosen in the reverse direction due to force, thus ensuring the stability of the locking process and further improving the reliability of the assembly process.

[0029] It should be noted that the one-way mechanism 20 is a one-way coupling structure. The two ends of the one-way mechanism 20 are connected to the worm 9 and the drive gear 14 respectively. When the worm 9 rotates in the forward direction to drive the locking pin 12 into the positioning hole 5 to complete the pre-fixing, the one-way mechanism 20 will not drive the drive gear 14 to rotate synchronously, so as to avoid prematurely driving the tensioning screw 7 to rotate during the pre-fixing process and ensure the controllability of the pre-positioning operation. When the worm 9 rotates in the reverse direction to drive the locking pin 12 to gradually withdraw from the positioning hole 5, the one-way mechanism 20 will directly transmit torque to drive the drive gear 14 to rotate, and then drive the tensioning screw 7 to rotate through the transmission structure, so as to realize the synchronization of the gathering action and the unlocking action, and the gathering and tightening can be completed without additional operation.

[0030] In addition, two light rods 21 are fixed on the upper and lower sides of the connecting plate 4. The moving plate 11 is slidably sleeved with the light rods 21. The light rods 21 can play a stable guiding and limiting role in the movement of the moving plate 11, preventing the moving plate 11 from deflecting as the drive screw 10 rotates, ensuring that the locking pin 12 can be accurately aligned and inserted into the positioning hole 5, and improving the positioning and locking accuracy.

[0031] It should be noted that after the connecting plate 4 and the tensioning screw 7 have completed the gathering and tightening operation, the connecting plate 4, the tensioning screw 7, and the disassembly and assembly components 6 and linkage components 8 on the connecting plate 4 can all be disassembled together and reused. Only the bearing steel plate 3, the angle steel strut 2, and the tie plate 22 are left on the outside of the concrete column 1. The subsequent work can be completed by welding and sealing and injecting structural adhesive. It will not cause any additional impact on the original connection structure. At the same time, the reusable transmission components also reduce construction costs and improve resource utilization.

[0032] Example 3: Refer to Figure 8 and Figure 9 As shown, this embodiment further explains Example 2, the difference being that the manual drive structure of the worm gear 9 is optimized, making it convenient for on-site construction personnel to quickly tighten the worm gear 9.

[0033] Specifically, rotating blocks 24 are fixedly sleeved on the outer side of the optical shaft at both ends of the worm 9. The outer side of the rotating blocks 24 is provided with anti-slip texture. Construction personnel can directly drive the worm 9 to rotate through the rotating blocks 24 without the need for additional special tools, which further reduces the threshold of on-site operation and improves the convenience of assembly operations. Meanwhile, a pulley 23 is fixed to the top of the drive screw 10. When rapid adjustment is required or multiple connecting components need to be operated synchronously at the same time, multiple pulleys 23 of the drive screw 10 can be connected by a transmission belt, and multiple worm gears 9 can be driven synchronously by a single power source to further improve construction efficiency and adapt to assembly operation needs of different scales.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A prefabricated concrete structural column connection component, comprising: Concrete column (1); Its characteristic is that it further includes: An angle steel strut (2) is attached to the corner of the concrete column (1). The angle steel strut (2) has a notch in the middle. The angle steel strut (2) is bent outward through the notch. A pressure-bearing steel plate (3) is welded and fixed between the middle of two adjacent angle steel struts (2). In addition, connecting plates (4) are provided at both ends of the pressure-bearing steel plate (3), and positioning holes (5) are provided on both the upper and lower sides of the pressure-bearing steel plate (3). A disassembly assembly (6) is installed on the connecting plate (4), and the pressure-bearing steel plate (3) is fixedly connected to the connecting plate (4) through the disassembly assembly (6). In addition, a tensioning screw (7) runs through the connecting plates (4), the tensioning screw (7) is used to gather the outwardly bent angle steel struts (2), and a linkage assembly (8) is connected between the tensioning screw (7) and the disassembly assembly (6).

2. The prefabricated concrete structural column connection component according to claim 1, characterized in that: The disassembly and assembly assembly (6) includes a worm gear (9) rotatably connected to the end of the connecting plate (4) away from the angle steel strut (2). Both the upper and lower ends of the worm gear (9) are fixed with drive screws (10). The outer side of the drive screw (10) is threaded with a moving plate (11). The end of the moving plate (11) away from the drive screw (10) is fixed with a locking pin (12). The locking pin (12) is slidably inserted into the positioning hole (5). A worm wheel (13) is engaged on one side of the worm gear (9). The central shaft of the worm wheel (13) is rotatably connected to the connecting plate (4).

3. A prefabricated concrete structural column connection component according to claim 2, characterized in that: The linkage component (8) includes a drive gear (14), which meshes with a transmission gear (15). An inner spline cylinder (16) is fixedly sleeved in the middle of the transmission gear (15). An outer spline (17) is slidably sleeved inside the inner spline cylinder (16). The outer spline (17) is fixedly sleeved with the tensioning screw (7). Both ends of the central shaft of the drive gear (14) are rotatably connected to a limiting plate (18). One end of the limiting plate (18) is fixedly connected to a fixing plate (19) that is fixedly connected to the connecting plate (4). A one-way mechanism (20) is provided between the worm gear (13) and the drive gear (14).

4. A prefabricated concrete structural column connection component according to claim 3, characterized in that: The one-way mechanism (20) is a one-way coupling structure, and the two ends of the one-way mechanism (20) are respectively connected to the worm (9) and the drive gear (14).

5. A prefabricated concrete structural column connection component according to claim 2, characterized in that: Two light rods (21) are fixed on the upper and lower sides of the connecting plate (4), and the moving plate (11) is slidably sleeved with the light rods (21).

6. A prefabricated concrete structural column connection component according to claim 1, characterized in that: Multiple tie plates (22) are welded and fixed between two adjacent angle steel struts (2), and the multiple tie plates (22) are distributed at equal intervals.

7. A prefabricated concrete structural column connection component according to claim 2, characterized in that: The top end of the drive screw (10) is also fixed with a pulley (23).

8. A prefabricated concrete structural column connection component according to claim 3, characterized in that: Rotating blocks (24) are also fixedly sleeved on the outer side of the optical shaft at both ends of the worm (9), and the outer side of the rotating blocks (24) is provided with anti-slip texture.

9. A prefabricated concrete structural column connection component according to claim 3, characterized in that: The inner splined cylinder (16) is rotatably connected to a mounting cylinder (25) at one end away from the transmission gear (15), and one end of the mounting cylinder (25) is fixedly connected to the connecting plate (4).

10. A prefabricated concrete structural column connection component according to claim 1, characterized in that: Locking nuts (26) are fixed on both sides of the connecting plate (4), and the tensioning screw (7) is threadedly connected to the locking nuts (26).

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