A reinforcing structure for a concrete column

Abstract

The utility model relates to building construction technical field discloses a reinforcing structure of concrete column, including concrete column, and the outer wall of concrete column is provided with fixing piece, and fixing piece includes each other's engagement prefabricated frame no.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a reinforcement structure for concrete columns. Background Technology

[0002] In building structural systems, concrete columns are core load-bearing components that transfer vertical loads and maintain overall structural stability, widely used in various buildings such as residences, factories, and bridges. As existing buildings age, some concrete columns experience strength reduction due to material aging and steel corrosion. Simultaneously, factors such as urbanization upgrading building functions (e.g., increased loads on industrial plants, additions to residential buildings), natural disasters (earthquakes, typhoons), and outdated early design standards mean that the load-bearing capacity or ductility of many concrete columns no longer meets current safety requirements. Without timely reinforcement, this can easily lead to structural safety hazards. Therefore, concrete column reinforcement technology has become a crucial means to extend the service life of buildings and ensure structural safety.

[0003] In emergency structural reinforcement scenarios, for concrete columns on the verge of collapse due to overloading, traditional interface reinforcement methods, while able to improve load-bearing capacity through the combined effect of concrete and steel reinforcement, suffer from cumbersome construction processes, low efficiency, and a severe disconnect from the time-sensitive requirements of emergency scenarios. In fact, excessively long construction periods may even exacerbate the risk of column collapse. Initially, the work involves roughening the original column surface and cleaning away weathered layers and cracks. The rebar installation process requires precise hole positioning, repeated hole cleaning, and a minimum of 24 hours for each rebar to cure, with bond strength tested for each individual rebar. Subsequent rebar tying necessitates laying longitudinal and stirrup bars within a confined space of less than 1 meter. Formwork erection requires steel pipe supports, sealing strips to prevent grout leakage, and static checks after verticality calibration. This "multi-process, time-consuming, and labor-intensive" approach requires multiple people to collaborate on a single column reinforcement, and the long cycle means the overloaded column continues to bear load during reinforcement, failing to meet the safety and timeliness requirements of emergency reinforcement. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a reinforcement structure for concrete columns, which can effectively solve the problems of cumbersome process, long time consumption and difficulty in adapting to emergency needs in the traditional reinforcement method.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a reinforcement structure for concrete columns, comprising: A concrete column, wherein the outer wall of the concrete column is provided with a fastener, the fastener includes a precast frame one and a precast frame two that are interlocked with each other, and side plates are symmetrically fixed to the outer walls of the precast frame one and the precast frame two, and the inner wall of the side plate is provided with a reinforcing member. A clamping plate is fixedly connected to the side of the precast frame one near the precast frame two, and a clamping plate is fixedly connected to the side of the precast frame two near the precast frame one. The clamping plate one and the clamping plate two are engaged and connected. The side plate has a positioning groove on its side for fixing the reinforcement component.

[0006] Furthermore, the side plate has equidistant sliding grooves inside, and the side of the side plate has an opening to facilitate the embedding of the reinforcement. The positioning groove is located on the other side of the side plate, and the sliding groove has a slot on the other side away from the first and second prefabricated frames.

[0007] Furthermore, the reinforcement includes a slider embedded in the inner wall of the slide groove, and both the slider and the slide groove adopt a cross-shaped design.

[0008] Furthermore, a fixing plate is fixedly connected to the side of the slider near the slot, and the fixing plate is located on the side of the side plate away from the first and second prefabricated frames.

[0009] Furthermore, a fixing groove is provided on the side of the slider near the positioning groove, and a screw is threadedly connected to the inner wall of the fixing groove, and a fixing block is fixedly connected to the other end of the screw.

[0010] Furthermore, the inner wall of the positioning groove adopts an inclined design that is larger on the outside and smaller on the inside.

[0011] The technical solution provided by this utility model has the following advantages compared with the known public technology: This utility model features a reinforcing component. After the fixing frame is engaged, the slider of the reinforcing component is embedded in the groove, providing lateral support for the unwelded steel plate segment. The tight fit between the cross-shaped slider and the groove restricts the warping direction of the steel plate. The fixing plate adheres to the outer side of the side plate, forming a longitudinal limit, preventing the fixing frame from sliding along the height of the concrete column during welding. During welding, workers can proceed according to the rhythm of "fixing the reinforcing component first, then welding segment by segment," without the need for a dedicated person to hold the steel plate or to build a temporary support frame, greatly improving welding efficiency and accuracy, and avoiding rework due to misalignment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the separate components of the fastener structure of this utility model; Figure 3 This is a schematic diagram of the prefabricated frame one and prefabricated frame two of this utility model; Figure 4 This is a schematic diagram of the side plate structure of this utility model; Figure 5 This is a schematic diagram of the reinforcement structure of this utility model.

[0014] The labels in the diagram represent: 1. Concrete column; 2. Fixing component; 21. Precast frame one; 211. Clamping plate one; 22. Precast frame two; 221. Clamping plate two; 23. Side plate; 231. Slide groove; 232. Groove; 233. Positioning groove; 234. Opening; 3. Reinforcing component; 31. Fixing plate; 32. Sliding block; 33. Fixing groove; 34. Screw; 35. Fixing block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Example: Please see Figures 1-5 This utility model provides a technical solution for reinforcing concrete columns: refer to Figure 1 , Figure 2 and Figure 3 As the basic frame for wrapping the concrete column 1, the precast frame 1 21 and the precast frame 22 are not fixed by traditional welding or bolts, but are initially fixed by "plate interlocking + friction limiting". The precast frame 1 211 is fixed on the side of the precast frame 1 21 that is close to the other, and the precast frame 222 is fixed on the corresponding side. The two sets of plates can interlock precisely to form a closed "U-shaped" frame.

[0018] Stable friction is generated solely through the mechanical interlocking of clamping plates 211 and 221 and the compression of the inner wall of the frame against the outer wall of the concrete column 1. During the interlocking process, the contact surfaces of clamping plates 211 and 221 fit inwards, and combined with the wrapping force of the frame on the concrete column 1, it can effectively resist lateral displacement and longitudinal sliding, avoiding the problems of "requiring special personnel to hold the plates for calibration and being prone to displacement due to vibration" in traditional splicing. Its advantages are mainly reflected in three aspects: First, high assembly efficiency, no need to wait for welding cooling or bolt curing, the interlocking can be completed by pushing the prefabricated frame 21 and prefabricated frame 22, which greatly shortens the frame fixing time; second, controllable fixing accuracy, the standardized prefabrication of clamping plates 211 and 221 ensures uniform gaps in the frame after interlocking, without the need for repeated manual adjustments; third, no damage to components, avoiding the material damage of prefabricated frame 21 and prefabricated frame 22 caused by the high temperature of spot welding, and no need for subsequent cleaning of welding slag, preserving the integrity of the frame.

[0019] refer to Figure 2 and Figure 4 The outer walls of prefabricated frame 1 21 and prefabricated frame 22 are symmetrically fixed with side plates 23. This component is not a single planar structure, but integrates four types of functional channels: sliding groove 231, slot 232, positioning groove 233 and opening 234, forming an integrated operating space for "installation-adjustment-fixing".

[0020] The slide groove 231 is evenly distributed along the length of the side plate 23 to provide a sliding track for the reinforcement 3; the opening 234 is opened on the side of the side plate 23 and communicates with the slide groove 231 to facilitate the side insertion of the reinforcement 3; the slot 232 is located on the side of the slide groove 231 away from the precast frame 1 21 and the precast frame 22, and the position of the reinforcement 3 can be adjusted by inserting a tool; the positioning slot 233 is inclined on the other side of the side plate 23, and the inner wall is designed as a wedge-shaped structure with a larger outer side and a smaller inner side to lock the reinforcement 3. The advantages of this integrated design are significant: First, it reduces the construction space requirement. The reinforcement 3 is embedded from the side opening 234, eliminating the need to build scaffolding around the concrete column 1, making it suitable for construction environments with dense equipment or limited space. Second, it enables simultaneous installation and adjustment. The position of the reinforcement 3 can be corrected in real time through the slot 232 without disassembly and reinstallation. Third, it enhances the stability of the fixation. The wedge-shaped structure of the positioning slot 233 can form a "wedge tightening effect" with the fixing block 35 of the reinforcement 3. The greater the force, the tighter the fit, avoiding the hidden danger of "vibration loosening" in traditional bolt fixing.

[0021] refer to Figure 1 and Figure 5The reinforcement component 3, as the core component for transmitting reinforcement force, consists of a fixed plate 31, a slider 32, a screw 34, and a fixing block 35. Its design highlights are concentrated in two aspects: "shape adaptation" and "force adjustment". The slider 32 adopts a cross-shaped design, which perfectly matches the shape of the slide groove 231. The slider 32 is connected to the fixed plate 31 on one side and has a fixing groove 33 on the other side. The built-in thread is adapted to the screw 34, and the fixing block 35 is fixedly connected to the end of the screw 34.

[0022] The uniqueness of this design lies in its dual adaptability; firstly, its structural form is adaptable, as the cross-shaped slider 32 can restrict the movement trajectory through multi-directional slots, allowing it to slide only along the length of the groove 231, thus eliminating the problems of "easy deflection and uneven force" of traditional linear blocks; secondly, its locking force is adaptable, as the depth of the fixing block 35 embedded in the positioning groove 233 can be adjusted by rotating the screw 34, thereby controlling the locking strength of the reinforcement 3. Its advantages include: firstly, high ease of installation, as the slider 32 can be embedded in the groove 231 to achieve initial fixation without requiring professional welding skills; secondly, uniform force transmission, as the fixing plate 31 fits against the outer side of the side plate 23, distributing the reinforcement force throughout the entire fixing component 2 frame, avoiding localized stress concentration that could lead to deformation of the side plate 23; and thirdly, strong adaptability, as the number of rotations of the screw 34 can be finely adjusted according to the actual size and stress requirements of the concrete column 1, adapting to concrete columns 1 with different cross-sectional sizes or degrees of damage, without the need for custom-made reinforcement 3.

[0023] Before construction, the concrete column 1 needs to undergo foundation treatment: remove dust, weathered and peeling layers, and loose debris from cracks on the outer wall of the concrete column 1 to ensure a smooth surface and prevent protrusions from affecting the fit between the fastener 2 and the concrete column 1. If there are minor cracks on the surface of the concrete column 1, no additional grouting repair is required; the fastener 2 frame can be wrapped with concrete later to fill the cracks, simplifying the initial treatment process.

[0024] Simultaneously, the integrity of all prefabricated components was checked: it was confirmed that prefabricated frame 1 21 and prefabricated frame 22 were free from deformation, and the interlocking surfaces of clamping plate 1 211 and clamping plate 221 were undamaged; the slider 32 of the reinforcement component 3 was well adapted to the slide groove 231, the screw 34 rotated smoothly in the fixing groove 33, and the fixing block 35 was undamaged; the channel of the side plate 23 was unblocked, and the opening 234 was normally connected to the slide groove 231. All components are prefabricated in the factory, requiring no on-site cutting or processing, and can be put into use directly after passing inspection, eliminating the cumbersome preparation procedures such as "rebar positioning and rebar cutting" in traditional reinforcement.

[0025] Precast frame 1 21 and precast frame 22 are placed on opposite sides of concrete column 1, so that the inner walls of the two sets of precast frames are tightly against the surface of concrete column 1, and the interlocking positions of clamping plate 1 211 and clamping plate 221 are aligned. Then, two workers slowly push precast frame 1 21 and precast frame 222 from both sides toward the center of concrete column 1 until clamping plate 1 211 is completely embedded in the groove of clamping plate 221. At this time, the fastener 2 frame forms a closed "U" shape, and there is no obvious gap between the inner wall and the surface of concrete column 1.

[0026] If uneven contact is found between the fastener 2 frame and the concrete column 1 during the installation process, the angle of precast frame 1 21 or precast frame 22 can be slightly adjusted without disassembly and reassembly. The interlocking structure of clamping plate 1 211 and clamping plate 221 allows for minor adjustments to ensure the overall verticality of the fastener 2 frame meets the requirements. After assembly, gently push both sides of the fastener 2 frame by hand to confirm that there is no looseness or displacement, thus completing the initial fixation. The entire process does not require welding equipment or bolt clamps; it only requires manual operation and can be completed with the assistance of a single person, avoiding the problems of "requiring multiple people to hold the plates and time-consuming calibration" in traditional frame splicing.

[0027] The installation of the reinforcement component 3 begins at the opening 234 of the side plate 23: align the slider 32 with the opening 234 and slowly push it into the groove 231 horizontally until the fixing plate 31 is completely flush with the outer wall of the side plate 23. Depending on the height and load-bearing capacity requirements of the concrete column 1, multiple sets of reinforcement components 3 are installed sequentially in the groove 231 of each side plate 23. The installation sequence can be from bottom to top or from left to right, without strictly adhering to a fixed direction.

[0028] During installation, if the position of the reinforcement component 3 needs to be adjusted, a tool can be inserted into the slot 232 and the slider 32 can be gently pushed along the slide groove 231 until it reaches the preset position. The design of the slot 232 allows for adjustments without disassembling other reinforcement components 3 or moving the frame of the fixing component 2, greatly improving operational flexibility. In construction scenarios with limited space, such as equipment mezzanines, workers can observe the position of the slider 32 through the slot 232 and complete the installation of the reinforcement component 3 without bending over or climbing, reducing labor intensity and safety risks.

[0029] After all the reinforcing parts 3 are installed, perform the overall locking operation; use a regular wrench to rotate the screw 34. Since the screw 34 is threadedly connected to the fixing groove 33, the rotation will drive the fixing block 35 to move towards the positioning groove 233. As the screw 34 continues to rotate, the fixing block 35 gradually embeds into the wedge-shaped inner wall of the positioning groove 233. Due to the "larger outside and smaller inside" design of the positioning groove 233, the fixing block 35 will be gradually pressed tight, while driving the slider 32 to tighten towards the prefabricated frame 1 21 and prefabricated frame 22, making the fixing plate 31 and the side plate 23 fit more tightly, forming a multi-fixing system of "slider 32 - groove 231 - positioning groove 233 - fixing block 35".

[0030] After locking, concrete is poured into the gap between the fastener 2 frame and the concrete column 1. Due to the tight engagement of the fixing block 35 and the positioning groove 233, the connection gaps between the side plate 23 and the precast frame 1 21 and precast frame 22 are compacted, preventing concrete leakage. At the same time, the fixing plate 31 of the reinforcement 3 provides lateral support for the fastener 2 frame, preventing deformation of the fastener 2 frame due to concrete pressure during the pouring process. Concrete pouring can be carried out immediately after locking without waiting for the reinforcement 3 to cure, further shortening the construction cycle.

[0031] After the concrete pouring is completed and it reaches its basic strength, the acceptance work can be carried out: First, check the engagement status of precast frame 1 21 and precast frame 22, and confirm that there are no signs of loosening or separation of clamping plate 1 211 and clamping plate 221, and that there are no hollow concrete areas at the joint between the fastener 2 frame and the concrete column 1; Second, check the fixing of the reinforcement 3, and confirm that the fixing block 35 is fully embedded in the positioning groove 233, the screw 34 is not loose, and the fixing plate 31 is not warped; Finally, gently tap the connection between the fastener 2 frame and the reinforcement 3, and listen to the sound to determine if there is any hollow sound. If there is a local hollow sound, the tightness of the screw 34 can be adjusted accordingly, without the need for overall rework.

[0032] Once accepted, the reinforced structure can be put into use without waiting for the concrete to fully cure. The properties of early-strength concrete, combined with the mechanical fixing of reinforcement component 3, enable it to quickly bear loads, meeting the timeliness requirements of emergency reinforcement. The entire construction process, from preparation to acceptance, involves no complicated procedures, and ordinary workers can operate it after simple training, significantly reducing the reliance on professional skills.

[0033] In traditional precast steel plate reinforcement, frame splicing requires temporary fixation via spot welding or bolt clamps; spot welding requires subsequent slag removal, and the high temperature can easily cause steel plate deformation; bolt clamps require repeated calibration of tightness, and even slight carelessness can cause steel plate displacement due to vibration. These problems not only increase the number of procedures but may also affect the final reinforcement accuracy.

[0034] This structure addresses this pain point through the "interlocking friction-increasing" design of fastener 2. The interlocking structure of clamping plate 1 211 and clamping plate 221, combined with the wrapping force of the fastener 2 frame on the concrete column 1, directly generates stable frictional force, eliminating the need for additional temporary fixing tools. During assembly, simply pushing precast frame 1 21 and precast frame 221 together completes the interlocking process. The standardized design of clamping plate 1 211 and clamping plate 221 ensures that the fastener 2 frame remains undisplaced after interlocking, eliminating the need for "spot welding-slag removal" or "bolt calibration" procedures. Even during subsequent welding for localized reinforcement or concrete pouring, the combined structure of clamping plate 1 211 and clamping plate 221 can resist external interference, preventing displacement of the fastener 2 frame and ensuring stable and controllable reinforcement accuracy.

[0035] Traditional precast steel plate welding requires segment-by-segment welding, but the unwelded steel plate segments lack temporary support and are prone to warping due to their own weight or welding vibration, resulting in "the more you weld, the more off-center" and requiring frequent pauses for adjustment. This is not only inefficient but may also affect the weld quality due to repeated welding.

[0036] This structure overcomes this challenge through a "sliding primary fixing of the reinforcement 3" design. After the frame of the fixing component 2 is engaged, the slider 32 of the reinforcement 3 is embedded in the groove 231, providing lateral support for the unwelded steel plate segment. The tight fit between the cross-shaped slider 32 and the groove 231 restricts the warping direction of the steel plate. The fixing plate 31 fits against the outer side of the side plate 23, forming a longitudinal limit, preventing the frame of the fixing component 2 from sliding along the height direction of the concrete column 1 during welding. During welding, workers can proceed according to the rhythm of "fixing the reinforcement 3 first, then welding segment by segment," without the need for a dedicated person to hold the steel plate or to build a temporary support frame, greatly improving welding efficiency and accuracy and avoiding rework due to misalignment.

[0037] After traditional precast steel plates are welded, the weld is prone to stress concentration due to thermal expansion and contraction. If the stress cannot be dispersed, it may cause the weld to crack. At the same time, if the gap between the steel plate and the concrete column is not sealed, grout leakage is likely to occur when concrete is poured in, resulting in hollowing of the reinforcement layer and affecting the load-bearing capacity.

[0038] This structure solves these two problems through the "tightly engaging movable fixing block 35" design. On the one hand, the wedge-shaped fit between the fixing block 35 and the positioning groove 233 disperses welding stress. The localized stress generated by welding is transmitted through the fixing block 35 to the inclined inner wall of the positioning groove 233. The inclined surface decomposes the stress into lateral and longitudinal components, avoiding stress concentration at the weld and reducing the risk of cracking. On the other hand, after the fixing block 35 is embedded in the positioning groove 233, it compacts the connection gap between the side plate 23 and the precast frame 1 21 and precast frame 2 22, forming a "leak-proof sealing strip." There is no grout leakage during concrete pouring, ensuring the compactness of the reinforcement layer. In addition, the thread adjustment function of the screw 34 allows for real-time fine adjustment of the engaging force of the fixing block 35 according to the concrete pressure, further enhancing the sealing effect.

[0039] Traditional reinforcement structures, such as welded steel plate frames and poured concrete layers, require the entire reinforcement layer to be removed once they are formed. If it is necessary to inspect the internal damage of the concrete column 1 later, such as to detect steel bar corrosion or adjust the reinforcement strength, the entire reinforcement layer must be removed. The removal process is not only costly and time-consuming, but may also cause secondary damage to the original concrete column 1, making it difficult to meet the needs of long-term maintenance.

[0040] This structure solves maintenance problems through a "gradual disassembly of reinforcement component 3" design. When maintenance is required, simply rotate the screw 34 in the reverse direction to disengage the fixing block 35 from the positioning groove 233, and then pull the slider 32 out from the opening 234 along the slide groove 231. This allows for the gradual disassembly of one or more sets of reinforcement components 3 without damaging the main structure of the fixing component 2 composed of prefabricated frame 1 21 and prefabricated frame 22. After maintenance, re-embed the reinforcement component 3 and adjust the locking of the fixing block 35 to restore the reinforcement function. If increased reinforcement is required, additional reinforcement components 3 can be installed in the slide groove 231 without overall modification. This detachable design makes maintenance simple and convenient, avoiding the "one-time installation for life" dilemma of traditional reinforcement.

[0041] This structure, while addressing the pain points of traditional technologies, also brings benefits in four dimensions: efficiency, quality, safety, and economy, further enhancing its engineering application value. Traditional reinforcement techniques, due to their cumbersome procedures such as rebar installation, welding, and curing, require several days to reinforce a single concrete column, making it difficult to meet the emergency needs of overloaded concrete columns on the verge of collapse. This structure, through prefabrication design and simplified processes, significantly shortens on-site construction time. The assembly of the fastener frame, the installation of the reinforcement components, and the overall fixation can be completed in a short time, and no long curing is required after concrete pouring; the structure can be put into use immediately after reinforcement. This high-efficiency performance allows for rapid response to emergency reinforcement needs, reducing the continuous load time of the concrete column during reinforcement and lowering the risk of collapse. It is particularly suitable for places such as hospitals, shopping malls, and industrial plants where prolonged shutdowns are not possible, ensuring normal building operation and personnel safety.

[0042] Traditional reinforcement methods heavily rely on worker skills and on-site management, easily leading to problems such as hollow rebar, weak welding, and insufficient concrete curing, affecting structural safety. This new structure ensures stable quality through standardized design and mechanical fixing. Precast components, including precast frame 1 (21), precast frame 2 (22), and reinforcement components 3, are mass-produced in the factory, with dimensional accuracy and material properties meeting standards, avoiding errors from on-site processing. The interlocking structure of clamping plates 1 (211) and 2 (221) and the cross-fit design of slider 32 and groove 231 ensure installation accuracy, eliminating the need for manual experience. The wedge-shaped fit between screw 34 and positioning groove 233 ensures uniform locking force and stable force transmission. Furthermore, the overall structure forms a dual constraint system of "fixed component 2 closed frame + multiple sets of reinforcement components 3". Fixed component 2 provides circumferential constraint force, while reinforcement components 3 transmit vertical reinforcement force, significantly improving the load-bearing capacity and ductility of the concrete column 1, and ensuring uniform force distribution, avoiding secondary damage caused by local stress concentration, and enhancing long-term stability.

[0043] Traditional reinforcement requires high-altitude operations such as formwork erection and welding, as well as confined space operations such as rebar tying. It also necessitates the use of welding equipment and heavy clamps, resulting in high labor intensity and safety risks such as falls from heights, welding fume injuries, and mechanical injuries. This structure eliminates the need for high-altitude operations and heavy equipment: the frame assembly of fastener 2 is completed by manual pushing, and the installation of reinforcement 3 only requires lateral insertion and wrench operation. Workers can complete all procedures from the ground or at a low height. The absence of welding operations avoids the harm to workers from high temperatures and welding fumes, and the elimination of concrete vibration reduces the physical exertion from strenuous operations. In confined spaces, the position of reinforcement 3 can be adjusted via slots 232, eliminating the need for climbing or bending. These designs significantly reduce construction difficulty and safety risks, and improve the safety of the working environment.

[0044] From a short-term cost perspective, the prefabricated components of this structure, including prefabricated frame 1 (21), prefabricated frame 2 (22), and reinforcement component 3, can be mass-produced, reducing the cost per unit. On-site construction requires no specialized technicians, reducing labor costs. There are no subsequent processing steps such as weld slag cleaning and hole repair, saving additional costs. From a long-term cost perspective, traditional reinforcement methods rely on steel that is prone to corrosion and concrete that is prone to cracking, requiring regular maintenance such as anti-corrosion treatment and crack repair, resulting in high maintenance costs. In contrast, the prefabricated frame 1 (21), prefabricated frame 2 (22), and reinforcement component 3 of this structure can undergo anti-corrosion treatment in the factory. The bolts 34 and fixing blocks 35 are made of corrosion-resistant materials, eliminating the need for frequent maintenance over long-term use. Furthermore, reinforcement component 3 is disassembled and reusable; if the concrete column 1 is replaced for reinforcement, the intact components can be reused, reducing material waste. This characteristic of "short-term cost savings and long-term maintenance reduction" significantly lowers the total life-cycle cost of the reinforcement structure.

[0045] Traditional reinforcement techniques have stringent requirements for the construction environment; the interface reinforcement method requires on-site concrete mixing, which has high requirements for site flatness and cleanliness, and is prone to generating construction waste; the precast steel plate welding method requires a stable power supply, and welding sparks may also cause fire risks, making it unsuitable for flammable and explosive places such as chemical plants or small spaces such as basements.

[0046] The design of this structure significantly enhances its adaptability to different construction environments; it eliminates the need for on-site concrete mixing, allowing for pre-mixed and transported concrete, and also eliminates welding operations, requiring no special considerations for site flatness or power supply; the construction process generates no construction waste, poses zero spark risk, and can be safely used in flammable and explosive environments; even in confined spaces, operation can be completed using "3 side-embedded reinforcement components + 232 slotting adjustment," without requiring a large area of ​​space. This low environmental dependence allows it to be applied to scenarios where traditional technologies are difficult to adapt, such as basements, chemical plants, and mezzanine floors of old buildings, thus broadening the application scope of reinforcement technology.

[0047] Traditional reinforcement techniques are prone to the problem of "disconnection between the reinforcement layer and the original concrete column 1 under stress": In the interface reinforcement method, the bond strength between the newly poured concrete and the original concrete column 1 depends on the quality of the base surface treatment. If the treatment is not done properly, it is easy to form "two skins" and they cannot deform together under stress; In the precast steel plate welding method, if the gap between the steel plate and the concrete column 1 is not filled tightly, it will cause the stress transfer to be interrupted and reduce the reinforcement effect.

[0048] This structure solves this problem through a "multi-layered fit + complete force chain" design. First, the inner wall of the fastener 2, composed of precast frame 1 21 and precast frame 22, fits tightly against the surface of the concrete column 1, with no obvious gaps after engagement, ensuring that the circumferential constraint force can be directly transmitted to the concrete column 1. Second, the tight fit between the slider 32 and the groove 231 of the reinforcement 3 allows the reinforcement force to be transmitted to the fastener 2 through the side plate 23, and then to the concrete column 1 through the fastener 2, forming a complete force chain of "reinforcement 3 - side plate 23 - fastener 2 - concrete column 1". Finally, concrete is poured to fill the gap between the fastener 2 and the concrete column 1, further enhancing the fit and ensuring that the reinforcement layer and the original concrete column 1 deform together and share the load, avoiding reinforcement failure caused by "force disconnection".

[0049] Traditional reinforcement construction generates a lot of noise and pollution; the noise from processes such as roughening, drilling, and welding can reach high decibels, affecting the normal lives of nearby residents or office workers; concrete mixing and vibration will generate dust, and welding fumes contain harmful gases, which endanger the health of workers and the quality of the environment. In particular, when construction is carried out in residential areas or near schools, it is easy to cause complaints.

[0050] The construction process of this structure boasts advantages of "low noise and zero pollution": the concrete column 1 base surface treatment requires only light cleaning, without large-scale roughening or drilling, resulting in no severe mechanical noise; the assembly of the fastener 2 frame and the installation of the reinforcement 3 are all done manually or with light tools, keeping noise levels low; no welding work avoids welding fume pollution, and pre-mixed concrete is used for pouring, reducing dust generation. This environmentally friendly design allows for construction in noise- and pollution-sensitive areas such as schools, hospitals, and residential areas, minimizing interference with the surrounding environment and increasing social acceptance of the construction.

[0051] Traditional reinforcement techniques have poor adaptability; the steel bars and formwork of the interface reinforcement method need to be cut on-site according to the size of the concrete column 1, which is inefficient; the steel plate size of the precast steel plate welding method is fixed, which is difficult to adapt to non-standard cross-section concrete columns 1, such as square columns with chamfers and polygonal columns, which need to be customized, extending the construction period and increasing costs.

[0052] This structure enhances adaptability through a "flexible adjustment + customized adaptation" design. Firstly, prefabricated frame 1 (21) and prefabricated frame 2 (22) can be customized in the factory according to the cross-sectional dimensions of the concrete column 1. The interlocking depth of clamping plates 1 (211) and 2 (221) allows for slight adjustments to accommodate minor unevenness on the surface of the concrete column 1. Secondly, the number and position of the reinforcement components 3 can be flexibly set. The uniform distribution of the sliding grooves 231 allows the reinforcement components 3 to be distributed as needed without changing the component dimensions. Thirdly, the thread adjustment of the screw 34 allows the fixing block 35 to adjust the locking force according to the actual stress on the concrete column 1. Even if the concrete column 1 has localized damage, targeted reinforcement can be achieved through fine-tuning. This adaptability design allows the core components of the same structure to be customized and adjusted to suit concrete columns 1 with different cross-sections and varying degrees of damage, reducing customization costs and shortening the delivery cycle.

[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A reinforcement structure for a concrete column, characterized in that, include: A concrete column (1) is provided with a fastener (2) on its outer wall. The fastener (2) includes a precast frame one (21) and a precast frame two (22) that are interlocked with each other. Side plates (23) are symmetrically fixed on the outer walls of the precast frame one (21) and the precast frame two (22). Reinforcing members (3) are provided on the inner walls of the side plates (23). A first card plate (211) is fixedly connected to the side of the first precast frame (21) near the second precast frame (22), and a second card plate (221) is fixedly connected to the side of the second precast frame (22) near the first precast frame (21). The first card plate (211) and the second card plate (221) are engaged and connected. The side plate (23) has a positioning groove (233) on its side for fixing the reinforcement (3).

2. The reinforcement structure for a concrete column according to claim 1, characterized in that: The side plate (23) has equidistant grooves (231) inside, and the side of the side plate (23) has an opening (234) to facilitate the embedding of the fastener (3). The positioning groove (233) is located on the other side of the side plate (23), and the groove (231) has a slot (232) on the other side away from the first precast frame (21) and the second precast frame (22).

3. The reinforcement structure for a concrete column according to claim 2, characterized in that: The reinforcement component (3) includes a slider (32) embedded in the inner wall of the slide groove (231), and both the slider (32) and the slide groove (231) adopt a cross-shaped design.

4. The reinforcement structure for a concrete column according to claim 3, characterized in that: The slider (32) is fixedly connected to a fixing plate (31) on the side near the slot (232). The fixing plate (31) is located on the side of the side plate (23) away from the precast frame one (21) and the precast frame two (22).

5. The reinforcement structure for a concrete column according to claim 4, characterized in that: The slider (32) has a fixing groove (33) on the side near the positioning groove (233). A screw (34) is threadedly connected to the inner wall of the fixing groove (33), and a fixing block (35) is fixedly connected to the other end of the screw (34).

6. The reinforcement structure for a concrete column according to claim 1, characterized in that: The inner wall of the positioning groove (233) adopts an inclined design with the outer side larger than the inner side.

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