CN115787936A - Damping device capable of realizing self-repairing function of slurry cracks in grouting sleeve - Google Patents
Damping device capable of realizing self-repairing function of slurry cracks in grouting sleeve Download PDFInfo
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- CN115787936A CN115787936A CN202310079987.XA CN202310079987A CN115787936A CN 115787936 A CN115787936 A CN 115787936A CN 202310079987 A CN202310079987 A CN 202310079987A CN 115787936 A CN115787936 A CN 115787936A
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Abstract
The invention discloses a damping device capable of realizing a self-repairing function of a slurry crack in a grouting sleeve, which comprises a metal shell, a connecting ring, an elastic strengthening sub-device and a crack self-repairing sub-device, wherein the metal shell and the connecting ring assemble the elastic strengthening sub-device and the crack self-repairing sub-device into a target functional device, and coordinate the two sub-devices to play a role independently. The elastic strengthening sub-device is based on the elastic recovery capability of the SM alloy cable and the VEM material, so that the SM alloy cable and the VEM material are enabled to absorb earthquake energy before the reinforcing steel bar, and the elastic stage of the reinforcing steel bar is strengthened. The crack self-repairing device contains carbonic acid microbial enzyme mixed liquor, and when the crack self-repairing device plays a role, the crack after the earthquake is self-repaired in the alkaline environment of grouting material. The invention applies the superelasticity idea and the bioremediation technology of the novel intelligent material to the connection of the grouting sleeve, can strengthen the elastic stage of the steel bar and self-repair the crack of the grouting material after the earthquake, and improves the safety of the fabricated building in the whole life cycle.
Description
Technical Field
The invention relates to a protective device suitable for being installed in an assembled grouting sleeve, in particular to a damping device for protecting a steel bar and self-repairing grouting material.
Background
With the continuous development of building structures in China, the assembled structure is the most important direction for meeting the industrial development of buildings. Compared with cast-in-place, the assembly type process is characterized in that a single component is cast in advance and then transported to a construction site in batches for connection, so that the construction process is more convenient and faster. Therefore, the assembly structure is beneficial to improving the production efficiency, saving energy and developing green and environment-friendly buildings. In this context, the most widespread form of joining prefabricated elements is the grouted sleeve joint, in which the joining between the elements is accomplished by injecting grouting material into it.
However, the safety problem of grout sleeve joints has been a hot spot and difficulty of research. After taking place violent earthquake, the inside grout material of grout sleeve can produce perpendicular to reinforcing bar length direction's horizontal crack, and this kind of crack produces inside the structure, and difficult observation is more unable artificial restoration, nevertheless if let anyhow can greatly reduce the telescopic connection performance of grout, the reason lies in: the crack can be further enlarged by stress concentration at the crack, so that the grouting material below the crack loses the anchoring effect on the reinforcing steel bar to the greatest extent, the reinforcing steel bar in the grouting sleeve is easy to break, the grouting material is pulled out together with the grouting material to destroy, and the connection safety of the grouting sleeve is greatly reduced, and the service life of the grouting sleeve is greatly prolonged. In addition, when earthquake acts on, the reinforcing steel bar inside the grouting sleeve bears axial stress, and the stress-strain curve shows that once the stress borne by the reinforcing steel bar exceeds the elastic limit, the reinforcing steel bar can enter a yielding stage, and plastic deformation which cannot be recovered is generated, so that the rigidity of the reinforcing steel bar is greatly reduced, the grouting sleeve is easily connected, the reinforcing steel bar is broken by pulling, and the connection performance is lost.
Therefore, in order to perform self-repairing on the grout cracks and avoid the situation that the steel bars enter a plastic stage as much as possible to cause the steel bars to have plastic deformation which cannot be recovered, after the inventor conducts deep research on the problems, the invention provides the damping device capable of realizing the self-repairing function of the grout cracks in the grout sleeve, which can solve the two problems, so that the connection performance of the grout sleeve in the whole life cycle is ensured to the great extent, the anti-seismic performance of the fabricated building in the face of an earthquake is improved, and the life and property safety of people is guaranteed.
Disclosure of Invention
Aiming at the problems, the invention provides a damping device capable of realizing the self-repairing function of a slurry crack in a grouting sleeve.
The invention adopts the following technical scheme:
the utility model provides a can realize that grout sleeve inner pulp crack is from damping device of restoration function, includes: the metal shell is a hollow cylindrical sleeve, a cross support is arranged at the top end of the hollow cylindrical sleeve, the hollow cylindrical sleeve is sleeved at the end part of a steel bar, the connecting ring is a detachable ring, the elastic reinforcing device is composed of four metal walls, VEM materials, SM alloy cables and steel bars, the cross section of each metal wall is arched and is in a long strip shape along the vertical direction, the tile-shaped metal walls are uniformly surrounded around the steel bars and are connected with the SM alloy cables through the VEM materials, and the crack self-repairing device is composed of a carbonic acid microbial enzyme mixed liquid storage tank, a metal film, a metal bottom plate and a carbonic acid microbial enzyme mixed liquid, the mixed liquid holding vessel of carbonic acid microbial enzyme is a hollow cylinder, and the center is the cross fretwork, and there are four fan-shaped cylinder protrudingly at the top, and it is connected with metal casing through the go-between, metal film passes through the welding and is connected with metal bottom plate, and it presss from both sides between mixed liquid holding vessel wall of carbonic acid microbial enzyme and metal casing inner wall, metal bottom plate is a flat cylinder, and the center has the circular fretwork the same with the inserted bar diameter, metal bottom plate is through welding and bar connection, the mixed liquid of carbonic acid microbial enzyme is deposited in the mixed liquid holding vessel of carbonic acid microbial enzyme.
In a preferred embodiment, the shape of the VEM material is consistent with that of the tile-shaped metal wall, but the arc length is smaller than that of the metal wall, so that the VEM material is attached to the middle of the metal wall and is flush with the end part of the steel bar, the SM alloy cables are positioned at two sides of the VEM material and are obliquely fixed on the inner wall of the metal wall and the steel bar, and the SM alloy cables are twisted into alloy cables similar to a sling through stranding and stranding, so that the elastic restoring force of the SM alloy cables is enhanced.
In a preferred embodiment, the end parts of the four tile-shaped metal walls are higher than the end part of the reinforcing steel bar, the outer sides of the end parts of the metal walls are provided with straight threads, the bottom surfaces of the four supporting arms at the top end of the metal shell are provided with straight thread grooves for connecting the four tile-shaped metal walls with the metal shell, and the arc length of the metal walls is ensured that at least one part of the end parts and the tail parts of the cross sections of the metal walls is positioned in the straight thread grooves of the supporting arms in the connecting process;
the function is as follows: the metal shell vibrated by a violent earthquake drives the four metal walls to relatively dislocate with the steel bars, the VEM material connected with the steel bars generates shearing deformation, and the SM alloy cables generate stretching deformation to consume earthquake energy before the steel bars, so that the total earthquake energy required by the steel bars in a plasticity stage is increased, the aim of reinforcing the elasticity stage of the steel bars is fulfilled, and the steel bars are prevented from entering the plasticity stage as much as possible in small and medium earthquakes.
In a preferred embodiment, the connection ring is composed of four 1/4 circular arcs, the circular arcs are connected through dovetail joints, the outer diameter of the connection ring is the same as the outer diameter of the side wall of the metal shell, the inner diameter of the connection ring is smaller than the inner diameter of the side wall of the metal shell but larger than the outermost diameter of the metal wall, the storage tank for the carbonated microbial enzyme mixed liquid is provided with a circular arc-shaped groove on the outer wall protruding out of the fan-shaped cylinder, the outer wall of the cross-shaped support section of the metal shell is also provided with a circular arc-shaped groove, when the storage tank for the carbonated microbial enzyme mixed liquid is consistent with the top height of the storage tank for the carbonated microbial enzyme mixed liquid, the circular arc-shaped grooves of the storage tank and the circular arc-shaped groove on the outer wall protruding out of the fan-shaped cylinder can be aligned smoothly, and when the storage tank for the carbonated microbial enzyme mixed liquid is inserted into the metal shell, the top surface of the storage tank is flush with the top surface of the cross-shaped support of the metal shell, the connection ring is formed by inserting the four 1/4 circular arcs into the grooves, so that the metal shell and the storage tank for the carbonated microbial enzyme mixed liquid are integrated.
In a preferred embodiment, the metal film is a rectangular metal film, fine round holes are uniformly and densely distributed above the height of the welding part of the metal film and the metal bottom plate, fine round holes staggered with the metal film are uniformly and densely distributed below the projection of the fan-shaped cylinder on the outer wall of the storage tank for the carbonated microbial enzyme mixed liquid, so that internal liquid is prevented from flowing out when no relative dislocation exists, the metal film is wound into a cylinder shape and is welded along the side wall of the metal bottom plate, the metal bottom plate is sleeved on the steel bars for welding connection, the highest position of the metal film is flush with the bottom of the fan-shaped cylinder of the storage tank for the carbonated microbial enzyme mixed liquid, the outer wall of the metal shell is below the height of the bottom surface of the cross support, fine round holes at the same position as the storage tank for the carbonated microbial enzyme mixed liquid are uniformly and densely distributed above the top of the metal bottom plate, and a plurality of annular bulges are arranged on the outer wall to enhance the mechanical biting force between the metal shell and the grouting material;
the function is as follows: the metal shell vibrated by a violent earthquake drives the storage tank for the carbonic acid microbial enzyme mixed liquor and the metal film to relatively move, the three circular holes are overlapped, the carbonic acid microbial enzyme mixed liquor in the storage tank flows out to a crack generated by the earthquake, and after the earthquake is finished, the carbonic acid microbial enzyme mixed liquor remained in the crack is repaired under the alkaline environment of the grouting material.
Compared with the existing product, the invention has the following beneficial effects:
(1) Compared with the existing grouting sleeve connection, the invention applies the energy consumption concept to the field of the assembled grouting sleeve connection for the first time, and the energy consumption device is arranged at the end part of the reinforcing steel bar before the reinforcing steel bar is inserted into the grouting sleeve. When an earthquake occurs, the elastic reinforcing sub-device can help the reinforcing steel bars to absorb energy and consume energy, indirectly reinforce the elastic stress stage of the reinforcing steel bars and enhance the connection safety of the grouting sleeve.
(2) Compared with the existing grouting sleeve connection, the grouting sleeve can fill the cracks in the grouting sleeve without external assistance, greatly reduces the damage of the cracks to the grouting sleeve, and prolongs the service life of the grouting sleeve connection. In addition, no harmful substance is generated in the repairing process, and the national requirement on green and environmental protection of building materials is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a sectional view of the center of a grouting sleeve structure after a damping device capable of realizing the self-repairing function of a slurry crack in the grouting sleeve is installed;
FIG. 2 is a cross-sectional view of the center of the structure of the damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve;
FIG. 3 is a top view of a damping device capable of achieving a self-repairing function of a slurry crack in a grouting sleeve;
FIG. 4 is a detail view showing a side wall of a damping device capable of self-repairing a slurry crack in a grouting sleeve;
FIG. 5 is a top view of the metal shell;
FIG. 6 is a bottom view of the metal shell;
FIG. 7 is a cross-sectional view of the center of the metal shell structure;
FIG. 8 is a top view of the attachment ring;
FIG. 9 is a front view of the attachment ring;
FIG. 10 is a front view of the spring-loaded sub-assembly;
FIG. 11 is a top view and a bottom view of the resilient stiffening sub-assembly;
FIG. 12 is a top view of a fracture self-repair sub-assembly;
FIG. 13 is a cross-sectional view of the center of the crack self-repair sub-device structure;
FIG. 14 is a front view of a storage tank for a mixture of carbonic acid microbial enzymes;
FIG. 15 is a top view of a storage tank for a mixture of carbonic acid microbial enzymes;
FIG. 16 is a bottom view of a storage tank for a mixture of carbonic acid microbial enzymes;
FIG. 17 is a schematic view of a metal film;
FIG. 18 is a schematic view of a metal base plate;
fig. 19 is a central cross-sectional view of a metal film welded metal baseplate.
Reference numbers in the figures: 1-grouting material, 2-metal shell, 3-connecting ring, 4-metal wall, 5-VEM material, 6-SM alloy cable, 7-carbonic acid microbial enzyme mixed liquid storage tank, 8-metal film, 9-metal bottom plate, 10-reinforcing steel bar, 11-carbonic acid microbial enzyme mixed liquid, 12-grouting sleeve and 13-crack.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order that those skilled in the art will better understand the technical solution of the present invention, the present invention will be fully and clearly illustrated and described below with reference to the accompanying drawings.
As shown in fig. 2-4, a damping device capable of self-repairing the slurry crack in the grouting sleeve comprises: metal casing 2, go-between 3, elasticity enhancer device and crack self-repair device, metal casing 2 is a cavity cylinder sleeve pipe, and there is the cross support on the top, and the suit is at reinforcing bar 10 tip, go-between 3 is the ring that can disassemble, elasticity enhancer device comprises four metal walls 4, VEM material 5, SM alloy cable 6 and reinforcing bar 10, 4 cross-sections of metal wall are the arch, is rectangular shape along vertical direction, tile form metal wall 4 evenly encircles around reinforcing bar 10, connects through VEM material 5 and SM alloy cable 6, crack self-repair device comprises carbonic acid microbial enzyme mixed liquid holding vessel 7, metal film 8, metal bottom plate 9 and carbonic acid microbial enzyme mixed liquid 11, carbonic acid microbial enzyme mixed liquid holding vessel 7 is a cavity cylinder, and the center is the cross fretwork, and there are four fan-shaped cylinder protrudingly at the top, and it is connected with metal casing 2 through go-between 3 and metal casing, metal film 8 is connected with metal bottom plate 9 through the welding, and it presss from both sides between carbonic acid microbial enzyme mixed liquid holding vessel 7 jar wall and metal casing 2 inner wall and metal casing, metal bottom plate 9 is a flat cylinder, and there is inserted the same circular shape circular metal bottom plate that the reinforcing bar is inserted in the metal bottom plate that the metal film is connected with the metal film that the reinforcing bar 10 is connected in the carbonic acid microbial enzyme mixed liquid holding vessel through welding is mixed liquid holding vessel 11, the metal bottom plate 9, the metal bottom plate that the metal bottom plate is connected with the metal mixed liquid holding vessel is connected with the metal film that the same diameter that the metal casing 2 inner wall is 10.
The shape of the VEM material 5 is consistent with that of the tile-shaped metal wall 4, but the arc length is smaller than that of the metal wall 4, so that the VEM material is attached to the middle of the metal wall 4 and is flush with the end part of the reinforcing steel bar 10, the SM alloy cables 6 are positioned at two sides of the VEM material 5 and are obliquely fixed on the inner wall of the metal wall 4 and the reinforcing steel bar 10, and the SM alloy cables 6 twist a plurality of SM alloy wires into alloy cables similar to a sling through stranding and rope stranding, so that the elastic restoring force of the alloy cables is enhanced.
The end parts of the four tile-shaped metal walls 4 are higher than the end part of the steel bar 10, the outer sides of the end parts of the metal walls 4 are provided with straight threads, the bottom surfaces of the four supporting arms at the top end of the metal shell 2 are provided with straight thread grooves for connecting the four tile-shaped metal walls 4 with the metal shell 2, and the arc length of the metal walls 4 ensures that at least one of the end parts and the tail parts of the cross sections of the metal walls are positioned in the straight thread grooves of the supporting arms in the connecting process;
the function is as follows: the metal shell 2 vibrated by a violent earthquake drives the four metal walls 4 to relatively dislocate with the steel bars 10, the VEM material 5 connected with the steel bars 10 generates shearing deformation, and the SM alloy cables 6 generate stretching deformation, so that the SM alloy cables consume earthquake energy before the steel bars 10, thereby improving the total earthquake energy required by the steel bars 10 in a plastic stage, achieving the aim of strengthening the elastic stage of the steel bars 10, and avoiding the steel bars 10 from entering the plastic stage as much as possible in small and medium earthquakes.
The connecting ring 3 is composed of four 1/4 circular arcs, the circular arcs are connected through dovetail joints, the outer diameter of the connecting ring 3 is the same as the outer diameter of the side wall of the metal shell 2, the inner diameter of the connecting ring 3 is smaller than the inner diameter of the side wall of the metal shell 2 but larger than the outermost diameter of the metal wall 4, the storage tank 7 for the carbonated microbial enzyme mixed liquid is provided with a circular arc-shaped groove on the outer wall protruding out of the fan-shaped cylinder, the outer wall of the cross-shaped supporting section of the metal shell 2 is also provided with a circular arc-shaped groove, when the storage tank 7 for the carbonated microbial enzyme mixed liquid is consistent with the top height of the storage tank 7 for the carbonated microbial enzyme mixed liquid, the circular arc-shaped grooves of the storage tank and the storage tank for the carbonated microbial enzyme mixed liquid can be aligned smoothly, the outer wall of the metal shell 2 except the cross-shaped supporting section is provided with a circular arc-shaped notch coinciding with the circular arc-shaped groove on the protruding outer wall of the fan-shaped cylinder, and when the storage tank 7 for the carbonated microbial enzyme mixed liquid is inserted into the metal shell 2, the four 1/4 circular arcs are inserted into the grooves to form the connecting ring 3, so that the metal shell 2 and the carbonated microbial enzyme mixed liquid storage tank 7 form a whole.
The metal film 8 is a rectangular metal film, fine round holes are uniformly and densely distributed above the height of the welding part of the metal film 8 and the metal bottom plate 9, fine round holes staggered with the metal film 8 are uniformly and densely distributed below the projection of the fan-shaped cylinder on the outer wall of the carbonated microbial enzyme mixed liquid storage tank 7, so that internal liquid is prevented from flowing out when no relative dislocation exists, the metal film 8 is wound into a cylinder shape and is welded along the side wall of the metal bottom plate 9, the metal bottom plate 9 is sleeved on the reinforcing steel bar 10 to be welded and connected, the highest position of the metal film 8 is flush with the bottom of the fan-shaped cylinder of the carbonated microbial enzyme mixed liquid storage tank 7, the outer wall of the metal shell 2 is below the height of the cross-shaped support bottom surface, fine round holes with the same positions as the carbonated microbial enzyme mixed liquid storage tank 7 are uniformly and densely distributed above the height of the top of the metal bottom plate 9, and a plurality of annular bulges are arranged on the outer wall to enhance the mechanical biting force between the metal shell 2 and the grouting material 1;
the function is as follows: the metal shell 2 vibrated by violent earthquake drives the storage tank 7 of the carbonic acid microbial enzyme mixed liquid and the metal film 8 to relatively dislocate, the circular holes of the storage tank and the metal film are overlapped, the carbonic acid microbial enzyme mixed liquid 11 flows out to a crack 13 generated by earthquake, and after the earthquake is finished, the carbonic acid microbial enzyme mixed liquid 11 remained in the crack 13 is repaired under the alkaline environment of the grouting material 1.
In the embodiment, the damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve is installed according to the following steps:
assembling the elasticity enhancing sub-device: the metal wall 4 and the steel bar 10 are connected through the VEM material 5 and the SM alloy cables 6, one surface of the VEM material 5 is adhered to the middle of the metal wall 4 through 502 glue, the height of the VEM material 5 is below the spiral lines of the metal wall 4, the other surface of the VEM material is adhered to the steel bar 10 which is polished smoothly, the height of the end portion of the steel bar 10 is consistent with that of the end portion of the VEM material 5, then two ends of the SM alloy cables 6 are respectively anchored on the inner side of the metal wall 4 and the steel bar 10 which are positioned on two sides of the VEM material 5 through welding, the welding point of the metal wall 4 is obliquely arranged above the welding point of the steel bar 10, two lines are connected in total, and 14 SM alloy cables 6 are arranged, so that one metal wall 4 is connected with the steel bar 10, and the steps are repeated to finish the connection of the remaining three metal walls 4 and the steel bar 10 as shown in the attached drawing 10. In top view, as shown in fig. 11, the four metal walls 4 are uniformly distributed around the section of the reinforcing bars 10.
Assembling a crack self-repairing sub-device: the metal film 8 is welded along the side surface of the outer wall of the metal bottom plate 9, so that the metal film 8 is formed into a cylindrical shape and connected with the metal bottom plate 9, as shown in figure 19, the carbonic acid microbial enzyme mixed liquid storage tank 7 is filled with the carbonic acid microbial enzyme mixed liquid 11 in advance and then inserted into the cylindrical metal film 8, the bottom surface of the carbonic acid microbial enzyme mixed liquid storage tank 7 is tightly attached to the metal bottom plate 9, and the side surface of the carbonic acid microbial enzyme mixed liquid storage tank is tightly attached to the inner side of the metal film 8 as shown in figure 13.
The utility model provides an equipment of damping device that can realize grout sleeve inner slurry crack self repair function: the assembled elastic reinforcement sub-device is screwed into a straight thread groove in the top of a metal shell 2 through straight thread connection, connection between the elastic reinforcement sub-device and the metal shell 2 is completed, the crack self-repair sub-device is inserted into the metal shell 2 from the lower portion of a steel bar 10, a metal film 8 is clamped between the inner wall of the metal shell 2 and the wall of a carbonic acid microbial enzyme mixed liquid storage tank 7, the groove in the upper portion of the carbonic acid microbial enzyme mixed liquid storage tank 7 and the groove of the metal shell 2 are located on the same horizontal plane, then four circular arcs forming a connecting ring 3 are respectively embedded into the grooves through hammers, the crack self-repair sub-device and the metal shell 2 are connected into a whole, and finally a metal bottom plate 9 at the bottom is connected with the steel bar 10 through welding.
The working principle of the invention is further explained by combining the structure of the invention:
the carbonic acid microbial enzyme mixed solution 11 is a mixed solution of carbonic anhydrase and a high-concentration carbonic acid solution. The carbonic anhydrase can greatly improve the hydrolysis rate of CO2, the hydrolysis rate of CO2 is very low under normal conditions and is only 1.3 multiplied by 10 < -1 > mol/s, but the highest hydrolysis rate under the action of the carbonic anhydrase can reach 1.4 multiplied by 107mol/s and reaches about 108 times of that under natural conditions. Therefore, after carbonic anhydrase is added in the reaction process, the content of HCO 3-can be greatly increased, CO 32-is generated in the alkaline environment of the grouting material 1, and finally calcium carbonate precipitation is formed with a calcium source in the grouting material 1 to fill the gaps of the cracks 13 and prevent the cracks 13 from damaging the structure, and the reaction process does not generate any harmful substance and has excellent environment-friendly characteristics. According to the invention, calcium carbonate is generated inside the grouting material 1 by utilizing the characteristics of the bacterial enzyme, so that the self-repairing of the crack 13 is realized.
When a violent earthquake occurs, because the metal bottom plate 9 welded with the metal film 8 is rigidly connected with the steel bar 10, the metal shell 2, the metal wall 4, the VEM material 5, the SM alloy cable 6, the carbonic acid microbial enzyme mixed liquid storage tank 7 and the steel bar 10 are elastically connected and can generate relative dislocation, so that the VEM material 5 and the SM alloy cable 6 in the elastic strengthening sub-device respectively generate shearing deformation and elastic tensile deformation to generate a force opposite to the dislocation direction, deformation resistance is provided, the energy brought by the earthquake is consumed by the steel bar, the total earthquake energy required by the steel bar entering a plastic stage is increased, and the elastic stage of the steel bar is strengthened. When relative dislocation occurs, the crack self-repairing device plays a role, the small holes of the metal shell 2 and the carbonic acid microbial enzyme mixed liquid storage tank 7 are overlapped with the small holes of the metal film 8, and the carbonic acid microbial enzyme mixed liquid 11 inside flows into the crack 13 generated by earthquake along the small holes. After the earthquake is finished, the metal shell 2 and the carbonic acid microbial enzyme mixed liquor storage tank 7 are reset due to the self-resetting property of the VEM material 5 and the SM alloy cable 6, the circular holes of the VEM material and the carbonic acid microbial enzyme mixed liquor storage tank are dislocated with the small holes of the metal film 8 again, the carbonic acid microbial enzyme mixed liquor 11 stops permeating, the carbonic acid microbial enzyme mixed liquor 11 remained in the cracks 13 reacts with the calcium source of the grouting material 1 under the alkaline environment inside the grouting material 1 to generate calcium carbonate calcite to fill the cracks 13, and the self-repairing of the cracks 13 after the grouting material 1 is in the grouting sleeve 12 is realized.
The foregoing has outlined rather broadly the principles, features and advantages of the present invention, as well as the method of mounting the same. It should be noted that any suitable changes or modifications by one of ordinary skill in the art should be considered within the scope of the present invention.
Claims (5)
1. The utility model provides a can realize that grout sleeve inner pulp crack is from damping device of restoration function, includes: metal casing (2), go-between (3), elasticity reinforces sub-device and crack self-repair sub-device, metal casing (2) are a cavity cylinder sleeve pipe, and there is the cross on top to support, and the suit is at reinforcing bar (10) tip, go-between (3) are the removable ring of decomposing, elasticity reinforces sub-device comprises four metal wall (4), VEM material (5), SM alloy cable (6) and reinforcing bar (10), its characterized in that: the section of the metal wall (4) is arched and is long-strip-shaped along the vertical direction, the tile-shaped metal wall (4) uniformly surrounds the steel bar (10) and is connected with the SM alloy cable (6) through the VEM material (5), and the crack self-repairing device consists of a carbonic acid microbial enzyme mixed liquid storage tank (7), a metal film (8), a metal bottom plate (9) and a carbonic acid microbial enzyme mixed liquid (11); the mixed liquid holding vessel of carbonic acid microbial enzyme (7) is a hollow cylinder, and the center is the cross fretwork, and the top has four fan-shaped cylinder protrudingly, and it is connected with metal casing (2) through go-between (3), metal film (8) are connected with metal bottom plate (9) through the welding, and it presss from both sides between mixed liquid holding vessel of carbonic acid microbial enzyme (7) jar wall and metal casing (2) inner wall, metal bottom plate (9) are a flat cylinder, and the center has the circular fretwork the same with inserted reinforcing bar (10) diameter, metal bottom plate (9) are connected with reinforcing bar (10) through the welding, mixed liquid of carbonic acid microbial enzyme (11) are deposited in mixed liquid holding vessel of carbonic acid microbial enzyme (7).
2. The damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve according to claim 1, characterized in that: the shape of the VEM material (5) is consistent with that of the tile-shaped metal wall (4), but the arc length is smaller than that of the metal wall (4), so that the VEM material is attached to the middle of the metal wall (4) and flush with the end part of the steel bar (10), the SM alloy cables (6) are positioned at two sides of the VEM material (5) and are obliquely fixed on the inner wall of the metal wall (4) and the steel bar (10), and the SM alloy cables (6) are formed by twisting and stranding a plurality of SM alloy wires into alloy cables similar to sling wires, so that the elastic restoring force of the SM alloy cables is enhanced.
3. The damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve according to claim 1, characterized in that: the end parts of the four tile-shaped metal walls (4) are higher than the end part of the steel bar (10), the outer sides of the end parts of the metal walls (4) are provided with straight threads, the bottom surfaces of the four supporting arms at the top end of the metal shell (2) are provided with straight thread grooves for connecting the four tile-shaped metal walls (4) with the metal shell (2), and the arc length of the metal walls (4) ensures that at least one of the end parts and the tail parts of the cross sections of the metal walls is positioned in the straight thread grooves of the supporting arms in the connecting process.
4. The damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve according to claim 1, is characterized in that: the connecting ring (3) is composed of four 1/4 circular arcs, the circular arcs are connected through dovetail joints, the outer diameter of the connecting ring (3) is the same as the outer diameter of the side wall of the metal shell (2), the inner diameter of the connecting ring (3) is smaller than the inner diameter of the side wall of the metal shell (2) but larger than the outermost diameter of the metal wall (4), the carbonated microbial enzyme mixed liquid storage tank (7) is provided with circular arc grooves on the outer wall of the protruded fan-shaped cylinder, the outer wall of the cross-shaped supporting section of the metal shell (2) is also provided with the circular arc grooves, when the carbonated microbial enzyme mixed liquid storage tank (7) is consistent with the top of the carbonated microbial enzyme mixed liquid storage tank (7), the circular arc grooves of the two are smoothly aligned, circular arc notches coincide with the circular arc grooves on the outer wall of the protruded outer wall of the fan-shaped cylinder are arranged on the outer wall of the metal shell (2) outside the cross-shaped supporting section, when the carbonated microbial enzyme mixed liquid storage tank (7) is inserted into the metal shell (2), the top of the carbonated microbial enzyme mixed liquid storage tank is level with the top of the cross-shaped supporting cross-shaped top of the metal shell (2), the two circular arc grooves are flush, the four 1/4 circular arc grooves are inserted into the four circular arc grooves to form the connecting ring (3), and the metal shell (2), and the carbonated microbial enzyme mixed liquid storage tank (2) are integrally, and the metal shell (2).
5. The damping device capable of realizing the self-repairing function of the slurry crack in the grouting sleeve according to claim 1, is characterized in that: the metal film (8) is a rectangular metal film, fine round holes are uniformly and densely distributed at the height of the welding position of the metal bottom plate (9), fine round holes staggered with the metal film (8) are uniformly and densely distributed at the outer wall of the carbonated microbial enzyme mixed liquid storage tank (7) below the projection of a fan-shaped cylinder, so that internal liquid is prevented from flowing out when no relative dislocation occurs, the metal film (8) is wound into a cylinder shape and welded along the side wall of the metal bottom plate (9), the metal bottom plate (9) is sleeved on the reinforcing steel bar (10) to be in welded connection, the highest position of the metal film (8) is flush with the bottom of the fan-shaped cylinder of the carbonated microbial enzyme mixed liquid storage tank (7), the outer wall of the metal shell (2) is below the height of the cross-shaped support bottom surface, fine round holes with the same positions as the carbonated microbial enzyme mixed liquid storage tank (7) are uniformly and densely distributed above the height of the top of the metal bottom plate (9), and a plurality of annular bulges are arranged on the outer wall to enhance the mechanical biting force between the metal shell (2) and the grouting material (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310079987.XA CN115787936B (en) | 2023-02-08 | 2023-02-08 | Damping device capable of realizing self-repairing function of slurry cracks in grouting sleeve |
Applications Claiming Priority (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383740A (en) * | 1993-08-02 | 1995-01-24 | Richmond Screw Anchor Company | Combination mechanical/grout sleeve coupling for concrete reinforcement bars |
| CN104831870A (en) * | 2015-04-20 | 2015-08-12 | 北京工业大学 | Viscous damping steel connector |
| CN107023121A (en) * | 2017-04-28 | 2017-08-08 | 广东省建科建筑设计院有限公司 | A kind of reinforcing bar grout sleeve connected for prefabricated concrete structure ductility |
| CN114575534A (en) * | 2022-03-05 | 2022-06-03 | 九江市钒宇新材料股份有限公司 | Antidetonation anti deformation vanadium nitrogen reinforcing bar |
| CN114892891A (en) * | 2022-07-14 | 2022-08-12 | 北京建筑大学 | Grouting-free steel bar connecting device |
| US20220389708A1 (en) * | 2021-06-02 | 2022-12-08 | Tongji University | Function-Recoverable Prefabricated Seismic Shear Wall Structure |
-
2023
- 2023-02-08 CN CN202310079987.XA patent/CN115787936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5383740A (en) * | 1993-08-02 | 1995-01-24 | Richmond Screw Anchor Company | Combination mechanical/grout sleeve coupling for concrete reinforcement bars |
| CN104831870A (en) * | 2015-04-20 | 2015-08-12 | 北京工业大学 | Viscous damping steel connector |
| CN107023121A (en) * | 2017-04-28 | 2017-08-08 | 广东省建科建筑设计院有限公司 | A kind of reinforcing bar grout sleeve connected for prefabricated concrete structure ductility |
| US20220389708A1 (en) * | 2021-06-02 | 2022-12-08 | Tongji University | Function-Recoverable Prefabricated Seismic Shear Wall Structure |
| CN114575534A (en) * | 2022-03-05 | 2022-06-03 | 九江市钒宇新材料股份有限公司 | Antidetonation anti deformation vanadium nitrogen reinforcing bar |
| CN114892891A (en) * | 2022-07-14 | 2022-08-12 | 北京建筑大学 | Grouting-free steel bar connecting device |
Non-Patent Citations (2)
| Title |
|---|
| 吴徽;张国伟;赵健;张扬;: "防屈曲支撑加固既有RC框架结构抗震性能研究", 土木工程学报 * |
| 欧卫星;刘康;马高;: "装配式框架连接节点研究综述", 建设科技 * |
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