Fabricated prestressed concrete column reinforcing construction device
By coordinating the design of support and adjustment components, the problems of additional stress damage and insufficient lateral displacement resistance of concrete columns caused by temperature changes are solved, thereby achieving stable reinforcement and improved load-bearing capacity of concrete columns.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CHUTIAN DINGSHENG CONSTR CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing concrete column reinforcement devices suffer additional stress damage due to the difference in expansion and contraction between metal components and concrete when temperatures change, and their resistance to lateral displacement is insufficient.
The design employs a synergistic approach of support and adjustment components, using springs to buffer temperature stress changes and creating a multi-dimensional anti-lateral displacement mechanism. This mechanism combines support plates, support rods, support frames, limit frames, and adjustment components. Springs absorb and release stress, and the adjustment limit plate is brought into contact with the concrete column to enhance friction.
It effectively alleviates the damage of temperature stress to concrete columns, enhances resistance to lateral displacement, prevents the generation of microcracks, and improves structural stability and load-bearing capacity.
Smart Images
Figure CN224549718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete column reinforcement technology, specifically to a prefabricated prestressed concrete column reinforcement construction device. Background Technology
[0002] Concrete columns are common structural components used to bear the vertical loads of buildings. They are usually made of cast concrete and play a supporting and load-bearing role in buildings. The shape of concrete columns can be square, circular or other specific cross-sectional shapes, depending on the design requirements and the choice of the structural designer. In building engineering, the design and construction of concrete columns are very important, as they directly affect the structural stability and load-bearing capacity of buildings.
[0003] The existing utility model patent with publication number CN221609252U discloses a precast concrete column reinforcement component, including a main reinforcement frame, a tensioning mechanism, and a reinforcement mechanism. The main reinforcement frame comprises a first reinforcement frame and a second reinforcement frame, with a concrete column installed between them. The concrete column has uniformly distributed reinforcing bars inside. The upper and lower ends of the first and second reinforcement frames are connected to each other via a connecting mechanism. Symmetrically distributed reinforcement plates are located on the left inner end of the first reinforcement frame and the right inner end of the second reinforcement frame. A mounting plate is located at the rear end of the second reinforcement frame. The prestressed tensioning mechanism is located on the front side of the mounting plate, and its upper end is installed in conjunction with the upper end of the reinforcing bars. This precast concrete column reinforcement component only requires on-site assembly and is quick to connect. By applying prestressed tension to the steel strands within the concrete column, it improves the seismic performance and load-bearing capacity of the concrete column, greatly improving the efficiency and speed of concrete column reinforcement.
[0004] The aforementioned precast reinforcement components lack lateral support assemblies (such as tie rods or transverse stiffeners), relying solely on the prestress of the steel bars to resist horizontal forces. However, prestressing is primarily designed for vertical load bearing and is insufficient for lateral displacement resistance. Furthermore, the thermal expansion coefficient of metal components (such as reinforcement frames or reinforcement semi-rings) is much greater than that of concrete. When temperatures change (such as during summer sun exposure or winter low temperatures), the expansion and contraction of the metal components are much greater than that of the column, which will generate additional stress on the concrete column. At high temperatures, the metal expands, and the reinforcement semi-rings will compress the column surface, causing micro-cracks in the column. At low temperatures, the metal contracts, and the reinforcement semi-rings lose contact with the column, resulting in the failure of the support force. The additional stress is directly transferred to the column, exacerbating structural damage. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a prefabricated prestressed concrete column reinforcement construction device, which solves the problems of metal damaging concrete structures due to additional stress caused by temperature and insufficient resistance to lateral displacement.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A prefabricated prestressed concrete column reinforcement construction device preferably includes a support plate, and a reinforcement mechanism is provided above the support plate. Prestress is applied to the concrete column by adjusting components. The reinforcement mechanism includes: A support component, positioned above the support plate, is used to limit the position of the adjustment component; The adjustment assembly includes a transmission rod and a limiting rod disposed inside the support assembly. A limiting plate is movably installed at the other end of the transmission rod and the limiting rod. A transition block is movably installed at the center of the transmission rod. A sleeve is fixedly installed on one side of the transition block. A movable column is movably installed inside the sleeve. A spring is inserted and installed on the outside of the sleeve. Adjustment rings are provided on both sides of the spring.
[0007] Preferably, the support assembly includes a support rod inserted above the support plate, a support frame inserted above the support rod, a limit frame provided above the support frame, and a connecting frame inserted between the support frame, the support plate, and the limit frame.
[0008] Preferably, there are four support plates, which are set at the four corners of the concrete column with the center of the concrete column as the reference. The upper and lower ends of the support rod have protruding structures on both sides of the columnar structure. The support rod is slidably connected to the support plate, the support frame, and the limiting frame.
[0009] Preferably, the limiting frame is installed above the support frame via a support column, and the upper and lower ends of the connecting frame are provided with columnar protrusions on both sides, and the upper and lower ends of the connecting frame are provided with rectangular protrusions on both sides of the columnar structures. The connecting frame, the support plate, the support frame, and the limiting frame form a sliding connection.
[0010] Preferably, one end of the transmission rod and the limiting rod is rotatably connected to the connecting frame, the other end of the transmission rod and the limiting rod is rotatably connected to the limiting plate, the sleeve and the movable column are slidably connected, and the outer surfaces of the sleeve and the movable column are provided with threaded structures that engage with the adjusting ring.
[0011] Preferably, the sleeve and the movable column are rotatably connected to the transmission rod and the connecting frame at both ends of the adapter block, and the two ends of the spring are in contact with the adjusting ring on the outside of the sleeve and the movable column, respectively. One side of the adjusting ring is disc-shaped and the other side is a hexagonal prism structure.
[0012] Beneficial effects
[0013] This utility model provides a prefabricated prestressed concrete column reinforcement construction device. Compared with the prior art, it has the following advantages: (1) The prefabricated prestressed concrete column reinforcement construction device buffers the additional stress caused by temperature through the coordinated cooperation of the adjustment component and the support component. When the temperature changes, the metal parts (support rod, support frame, connecting frame, transmission rod, etc.) and the concrete column have different expansion and contraction: at high temperature, the metal expands, and the expansion force is transmitted to the adjustment component through the connecting frame, so that the sleeve and the adjustment ring on the outside of the movable column squeeze the spring. The spring absorbs the excess stress by elastic deformation. At the same time, the sleeve and the movable column slide along the axis to disperse the pressure, so as to prevent the adjustment ring from directly transmitting the pressure to the limiting plate and prevent the limiting plate from excessively squeezing the concrete column and causing micro-cracks; at low temperature, the metal contracts, the spring releases elastic potential energy, and pushes the adjustment ring to move along the thread of the sleeve and the movable column, adjusting the relative position of the two. Through the adapter block and the transmission rod, the limiting plate is always in contact with the column, avoiding the failure of the support force and effectively offsetting the additional stress caused by temperature.
[0014] (2) This prefabricated prestressed concrete column reinforcement construction device enhances the anti-lateral displacement capability through multi-structure collaboration. In the support component, four support plates are set at the four corners of the concrete column to form bottom support. The support rods are vertically inserted into the support plates, support frames, and limiting frames, and the connecting frame is horizontally inserted into the three. Through the protruding structure and sliding connection of each component, a three-dimensional frame that runs vertically through the column is formed, which can disperse horizontal force and constrain vertical displacement. The transmission rod, limiting rod, connecting frame, and limiting plate of the adjustment component form a parallelogram structure. The limiting plate is attached to the column, which can generate a reverse resistance force against the lateral displacement of the column. At the same time, the vertical component force generated by the spring compression is transmitted to the support plate through the transmission rod, connecting frame, and support rod, which increases the relative pressure between the support plate and the installation surface. According to the friction formula, the friction force between the two is increased, which hinders the sliding of the support plate, strengthens the bottom stability, and forms a multi-dimensional anti-lateral displacement mechanism to make up for the deficiency of the anti-lateral displacement capability of traditional devices. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support rod installation structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the limiting rod of this utility model; Figure 4 This is a schematic diagram of the spring mounting structure of this utility model; In the diagram: 1. Support plate; 2. Reinforcing mechanism; 21. Support assembly; 211. Support rod; 212. Support frame; 213. Limiting frame; 214. Connecting frame; 22. Adjusting assembly; 221. Transmission rod; 222. Limiting rod; 223. Limiting plate; 224. Adapter block; 225. Sleeve; 226. Movable column; 227. Spring; 228. Adjusting ring. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-4 This utility model provides a technical solution: a prefabricated prestressed concrete column reinforcement construction device includes a support plate 1, and a reinforcement mechanism 2 is arranged above the support plate 1. Prestress is applied to the concrete column by adjusting the component 22. The reinforcement mechanism 2 includes: A support assembly 21 is disposed above the support plate 1 to limit the position of the adjustment assembly 22. The support assembly 21 includes a support rod 211 inserted above the support plate 1, a support frame 212 inserted above the support rod 211, a limit frame 213 disposed above the support frame 212, and a connecting frame 214 inserted between the support frame 212, the support plate 1, and the limit frame 213. There are four support plates 1, which are disposed at the four corners of the concrete column with the center of the concrete column as the reference. The upper and lower ends of the support rod 211 have protruding structures on both sides of the columnar structure. The support rod 211 is slidably connected to the support plate 1, the support frame 212, and the limit frame 213. The limit frame 213 is installed above the support frame 212 through the support column. The upper and lower ends of the connecting frame 214 have columnar protruding structures on both sides, and rectangular protrusions are provided on both sides of the columnar structure on both sides of the connecting frame 214. The connecting frame 214 is slidably connected to the support plate 1, the support frame 212, and the limit frame 213.
[0018] Specifically, by inserting the support rod 211, connecting frame 214, support plate 1, support frame 212, and limiting frame 213, a frame structure is formed on the outside of the concrete column to restrict the position of the adjustment component 22, so that the adjustment component 22 can face the four sides of the concrete column to apply a certain external force to the concrete column. At the same time, the insertion method can reduce the assembly steps, and ensure the stability of the overall frame structure before the adjustment component 22 applies pressure to the concrete column.
[0019] The adjusting assembly 22 includes a transmission rod 221 and a limiting rod 222 disposed inside the support assembly 21. A limiting plate 223 is movably mounted on the other end of the transmission rod 221 and the limiting rod 222. A transition block 224 is movably mounted at the center of the transmission rod 221. A sleeve 225 is fixedly mounted on one side of the transition block 224. A movable column 226 is movably mounted inside the sleeve 225. A spring 227 is inserted through the outside of the sleeve 225. Adjusting rings 228 are provided on both sides of the spring 227. One end of the transmission rod 221 and the limiting rod 222 are rotatably connected to the connecting frame 214. The other end of the transmission rod 221 and the limiting rod 222 are rotatably connected to the limiting plate 223. The sleeve 225 and the movable column 226 are slidably connected. The outer surfaces of the sleeve 225 and the movable column 226 are provided with threaded structures that fit into the adjusting ring 228. The sleeve 225 and the movable column 226 are rotatably connected to the transmission rod 221 and the connecting frame 214 respectively through the two ends of the adapter block 224. The two ends of the spring 227 are in contact with the adjusting ring 228 on the outside of the sleeve 225 and the movable column 226 respectively. One side of the adjusting ring 228 is disc-shaped and the other side is a hexagonal prism structure.
[0020] Specifically, the transmission rod 221, the limiting rod 222, the limiting plate 223, and the connecting frame 214 form a quadrilateral structure. The limiting plate 223 and the connecting frame 214 are parallel to each other and remain vertical so that the limiting plate 223 can fit against the surface of the concrete column. Before installation, the spring 227 has no external force at both ends and is in a naturally extended state. During installation, due to the limitation of the distance between the connecting frame 214 and the surface of the concrete column, the included angle between the transmission rod 221 and the limiting rod 222 and the connecting frame 214 is reduced, and the overall tilt angle of the sleeve 225 and the movable column 226 is reduced. At the same time, the adjusting ring 228 on the outside of the sleeve 225 and the movable column 226 will squeeze the spring 227. The elastic force of the spring 227 when compressed will make the limiting plate 223 fit tightly against the surface of the concrete column. Then, by rotating the adjusting ring 228, the compression of the spring 227 can be further adjusted to adjust the relative pressure between the limiting plate 223 and the concrete column. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.
[0021] During operation, firstly, the pre-assembly of the adjustment component 22 and the connecting frame 214 is completed: one end of the transmission rod 221 and the limiting rod 222 are respectively rotatably connected to the connecting frame 214, and the other end is rotatably connected to the limiting plate 223, so that the four form a quadrilateral structure in which the limiting plate 223 and the connecting frame 214 are parallel; at the same time, the adapter block 224 is movably installed at the center of the transmission rod 221, the sleeve 225 is fixed on one side of the adapter block 224, the movable column 226 is movably installed into the sleeve 225, the spring 227 is inserted through the outside of the sleeve 225, and the adjustment rings 228 are installed on both sides of the spring 227 to ensure that the adjustment component 22 is always connected to the connecting frame 214.
[0022] The basic structure of the support component 21 is then installed: four support plates 1 are placed at the four corners of the concrete column with the center of the concrete column as the reference, serving as the bottom support of the device; support rods 211 are inserted and installed above the support plates 1, and support frames 212 are inserted and installed above the support rods 211. The limiting frame 213 is installed above the support frame 212 through the support column. The support frame is initially built by utilizing the protruding structure at the upper and lower ends of the support rods 211 and the sliding connection between the support rods 211 and the support plates 1, the support frames 212, and the limiting frame 213.
[0023] Next, install the connecting frame 214 with the adjustment component 22: The pre-assembled connecting frame 214 with the adjustment component 22 is inserted between the support frame 212, the support plate 1, and the limiting frame 213. With the help of the cylindrical protrusions at the top and bottom ends and the rectangular protrusions on both sides of the connecting frame 214, and the sliding connection between the connecting frame 214 and the support plate 1, the support frame 212, and the limiting frame 213, the connecting frame 214 is stably fixed in the support frame. At this time, the adjustment component 22 is in place along with the connecting frame 214. Due to the distance limitation between the connecting frame 214 and the concrete column surface, the angle between the transmission rod 221 and the limiting rod 222 and the connecting frame 214 is reduced, and the tilt angle between the sleeve 225 and the movable column 226 is reduced synchronously. The adjusting ring 228 compresses the spring 227, and the elastic force of the spring 227 pushes the limiting plate 223 to press tightly against the concrete column surface.
[0024] Finally, the prestressing is precisely controlled: by rotating the hexagonal prism structure of the adjusting ring 228, the position of the adjusting ring 228 is adjusted through the threaded structure on the outer side of the sleeve 225 and the movable column 226, which further changes the compression of the spring 227, precisely controls the pressure of the limiting plate 223 on the concrete column, and finally completes the prestressing reinforcement of the concrete column.
[0025] 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.
[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A prefabricated prestressed concrete column reinforcement construction device, comprising a support plate (1), characterized in that: A reinforcing mechanism (2) is provided above the support plate (1), and prestress is applied to the concrete column by adjusting the assembly (22). The reinforcing mechanism (2) includes: A support component (21) is disposed above the support plate (1) to limit the position of the adjustment component (22); The adjusting assembly (22) includes a transmission rod (221) and a limiting rod (222) disposed inside the support assembly (21). A limiting plate (223) is movably installed at the other end of the transmission rod (221) and the limiting rod (222). A transition block (224) is movably installed at the center of the transmission rod (221). A sleeve (225) is fixedly installed on one side of the transition block (224). A movable column (226) is movably installed inside the sleeve (225). A spring (227) is inserted and installed on the outside of the sleeve (225). Adjusting rings (228) are provided on both sides of the spring (227).
2. The prefabricated prestressed concrete column reinforcement construction device according to claim 1, characterized in that: The support assembly (21) includes a support rod (211) that is inserted and installed above the support plate (1). A support frame (212) is inserted and installed above the support rod (211). A limit frame (213) is provided above the support frame (212). A connecting frame (214) is inserted and installed between the support frame (212), the support plate (1), and the limit frame (213).
3. The prefabricated prestressed concrete column reinforcement construction device according to claim 2, characterized in that: There are four support plates (1), which are set at the four corners of the concrete column with the center of the concrete column as the reference. The support rod (211) has protruding structures on both sides of the columnar structure at both ends. The support rod (211) is slidably connected to the support plate (1), the support frame (212), and the limiting frame (213).
4. The prefabricated prestressed concrete column reinforcement construction device according to claim 2, characterized in that: The limiting frame (213) is installed above the support frame (212) via a support column. The connecting frame (214) has columnar protrusions on both sides of its upper and lower ends. The connecting frame (214) has rectangular protrusions on both sides of its columnar structures. The connecting frame (214) is connected to the support plate (1), the support frame (212), and the limiting frame (213) in a sliding connection.
5. The prefabricated prestressed concrete column reinforcement construction device according to claim 2, characterized in that: One end of the transmission rod (221) and the limiting rod (222) are rotatably connected to the connecting frame (214), and the other end of the transmission rod (221) and the limiting rod (222) are rotatably connected to the limiting plate (223). The sleeve (225) and the movable column (226) are slidably connected. The outer surfaces of the sleeve (225) and the movable column (226) are provided with threaded structures that engage with the adjusting ring (228).
6. The prefabricated prestressed concrete column reinforcement construction device according to claim 2, characterized in that: The sleeve (225) and the movable column (226) are rotatably connected to the transmission rod (221) and the connecting frame (214) at both ends of the adapter block (224). The two ends of the spring (227) are in contact with the adjusting ring (228) on the outside of the sleeve (225) and the movable column (226), respectively. One side of the adjusting ring (228) is disc-shaped and the other side is a hexagonal prism structure.