Prefabricated concrete component

Abstract

The utility model provides a precast concrete component, which relates to the technical field of building structures and comprises CFRP (carbon fiber reinforced plastic) cloth, a restraint frame is mounted in the CFRP cloth, a group of support blocks are arranged on the outer side surface of the restraint frame, a group of precast structures are mounted on the inner side of the restraint frame, and each precast structure consists of a concrete component and reinforcing steel bars. And a protective frame and two anti-loosening plates are mounted at the bottom of the concrete member. The protection frame and the rubber ring are designed to provide comprehensive protection for the steel bars of the prefabricated structure in the transportation process, the protection frame is installed in a sliding groove in the bottom of the concrete member, and the influence of external vibration and collision on the steel bars can be effectively buffered in the transportation process through cooperation of a positioning bolt and a supporting spring; the rubber rings not only can prevent the steel bars from directly colliding and rubbing with other parts, but also can absorb impact force to a certain extent, so that the steel bars are prevented from being damaged in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a prefabricated concrete component. Background Art

[0002] In the field of modern construction engineering and infrastructure construction, concrete components are widely used. Precast concrete components are composed of concrete and steel bars. Precast concrete components can be used directly or in combination. Although traditional precast concrete components have accelerated the construction progress in actual use, they still face many shortcomings as follows:

[0003] On the one hand, concrete components are very prone to cracking when subjected to external loads, temperature changes, and shrinkage, which not only affects the appearance of the structure, but more seriously reduces the structure's bearing capacity and durability;

[0004] On the other hand, during the transportation of concrete components, due to the inevitable factors of bumps and collisions, the steel bars are very likely to be deformed and damaged, which will affect the docking of prefabricated concrete components with the help of steel bars. If the steel bars are not docked accurately or sealed poorly, the structural connection will be loose, and the moisture and corrosive media in the air will easily penetrate the steel bars, causing them to rust, thereby affecting the stability and durability of the entire structure. Utility Model Content

[0005] The utility model discloses a prefabricated concrete component. When two or more prefabricated structures need to be butt-jointed, the bottom of the steel bar of one prefabricated structure is aligned with the butt-jointed groove of the steel bar of another prefabricated structure, and the steel bar is slowly lowered so that the bottom of the steel bar extends into the inside of the butt-jointed groove, thereby achieving preliminary butt-jointed positioning of the two prefabricated structures at the steel bar level, so as to ensure the stability and connection strength of the overall structure. During the butt-jointing process, as the prefabricated structures approach each other, the protective frame is stressed and drives the rubber ring to move, so that the rubber ring extends into the sealing groove of the concrete component, forming a sealing structure, effectively preventing moisture from entering the butt joint of the steel bars and avoiding corrosion of the steel bars. At the same time, the positioning blocks on both sides of the protective frame are inserted into the corresponding positioning grooves, thereby achieving the positioning and reinforcement functions when the prefabricated structures are butt-jointed, further enhancing the stability and reliability of the overall structure, and ensuring that the connections between the prefabricated structures are accurate and firm, and can collaboratively withstand external loads.

[0006] In a first aspect of the present disclosure, a precast concrete component is provided, specifically comprising: a CFRP cloth, a constraint frame installed inside the CFRP cloth, a group of support blocks provided on the outer side of the constraint frame, a group of precast structures installed on the inner side of the constraint frame, the precast structures consisting of concrete components and steel bars, a protective frame and two anti-loosening plates installed at the bottom of the concrete components, two symmetrically distributed positioning bolts installed between the concrete components and the protective frame, and two symmetrically distributed anti-loosening plates installed at the bottom of the concrete components.

[0007] Furthermore, the constraint frame is a U-shaped structure, the shape of the constraint frame is selected according to the shape of the concrete component, and a group of meshes are opened on the basis of the constraint frame.

[0008] Furthermore, a group of steel bars are poured inside the concrete component, and a docking groove is opened above the steel bars.

[0009] Furthermore, the concrete component is provided with a set of sealing grooves at the upper and lower positions, respectively, and the sealing grooves correspond to the rubber rings.

[0010] Furthermore, a positioning block is respectively provided on both sides of the protective frame, and a group of positioning grooves corresponding to the positioning blocks are opened above the concrete component, and the positioning blocks are installed inside the positioning grooves.

[0011] Furthermore, a group of evenly distributed positioning holes are opened at the bottom of the protective frame, a rubber ring is installed inside the positioning hole, a positioning groove is opened on the outer side of the rubber ring, and the bottom of the steel bar passes through the inside of the rubber ring.

[0012] Furthermore, a sliding groove is provided on both sides of the bottom of the concrete component, and both sides of the protective frame are respectively installed inside the sliding groove, so that the sliding groove can achieve the effect of circumferential and lateral positioning of the protective frame.

[0013] Furthermore, the sliding groove of the concrete component is provided with a thread groove and a positioning groove at the upper position, and the protective frame is provided with a sliding hole at both sides of the upper position. The positioning bolt passes through the interior of the sliding hole and is threadedly connected to the thread groove. A support spring is installed on the outside of the positioning bolt. A positioning block is provided on one side of the anti-loosening plate. The positioning block is a rectangular structure. The anti-loosening plate is installed in the interior of the positioning groove in conjunction with the positioning block. A support spring is also installed in the interior of the positioning groove.

[0014] Furthermore, a limiting ring is provided above the positioning bolt, and a group of locking blocks are provided at the bottom of the anti-loosening plate. The locking block is a one-way limiting structure with a bevel. A group of locking grooves corresponding to the locking block are opened above the limiting ring, and the locking block locking grooves are engaged.

[0015] The utility model provides a prefabricated concrete component, which has the following beneficial effects:

[0016] The CFRP sheet and the restraint frame work together to form a dual protection system for concrete components. CFRP sheet has the characteristics of high strength and high elastic modulus, which can effectively restrain the deformation of concrete and distribute external loads, thereby significantly reducing the risk of cracking of concrete components under stress. The restraint frame not only provides support for the CFRP sheet, but its mesh allows the concrete to better integrate with it, further enhancing the stability of the overall structure. At the same time, rubber rings are sealed at the joints of the prefabricated structure to effectively prevent moisture from entering the steel bars and prevent the steel bars from rusting and reducing the structural strength. This greatly extends the service life of the prefabricated structure, reduces the frequency of repairs or replacements due to structural damage, and reduces long-term maintenance costs.

[0017] When impacted, the CFRP sheet first bears part of the impact force and evenly transfers it to the constraining frame and concrete components. The internal steel bars further enhance the structure's bearing capacity and toughness. The protective frame and rubber ring not only protect the steel bars, but also help maintain the integrity of the structure, enabling the entire prefabricated structure to maintain good stability when subjected to sudden impact, reducing the possibility of structural damage and collapse, and ensuring the safety of the building and its users.

[0018] The design of the protective frame and rubber ring provides comprehensive protection for the steel bars of the prefabricated structure during transportation. The protective frame is installed in the sliding groove at the bottom of the concrete component, and through the cooperation of positioning bolts and support springs, it can effectively buffer the impact of external vibrations and collisions on the steel bars during transportation. The rubber ring can not only prevent direct collision and friction between the steel bars and other components, but also absorb the impact force to a certain extent, ensuring that the steel bars are not damaged during transportation, reducing the quality problems of components caused by the transportation link, and improving the transportation safety and on-site qualification rate of prefabricated structures.

[0019] At the construction site, the prefabricated structures only need to be butt-jointed and assembled, and quick positioning and connection can be achieved through the butt-jointing grooves of the steel bars. The positioning blocks of the protective frame cooperate with the positioning grooves of the concrete components to complete precise assembly, which greatly shortens the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached figure:

[0023] Figure 1It shows the schematic diagram of the axial side structure of the prefabricated concrete components of the present application after assembly;

[0024] Figure 2 Shows the application Figure 1 A schematic diagram of the axle-side structure from an upward perspective;

[0025] Figure 3 An axial schematic diagram of the cross-section structure of the CFRP cloth and the restraint frame of the present application is shown;

[0026] Figure 4 An axial schematic diagram of a partially cutaway structure of a concrete component of the present application is shown;

[0027] Figure 5 It shows an axial side schematic diagram of a partially cutaway structure of the prefabricated structure of the present application after stacking;

[0028] Figure 6 An axial schematic diagram of a half-cut structure of a concrete member of the present application is shown;

[0029] Figure 7 The figure shows the axial side schematic diagram of the locating bolt and anti-loosening plate split structure of the present application;

[0030] Figure 8 Shows the application Figure 6 A schematic diagram of the enlarged structure.

[0031] Reference Signs List

[0032] 1. CFRP cloth; 2. Constraint frame; 3. Prefabricated structure; 301. Concrete component; 302. Rebar; 4. Protective frame; 401. Rubber ring; 5. Positioning bolt; 6. Anti-loosening plate. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 8 :

[0035] The utility model proposes a prefabricated concrete component, comprising: a CFRP cloth 1, a constraint frame 2 installed inside the CFRP cloth 1, the CFRP cloth 1 and the constraint frame 2 cooperate with each other to protect the concrete component 301, and prevent the concrete component 301 from being cracked by stress. A group of support blocks are provided on the outer side of the constraint frame 2. The setting of the support blocks allows the CFRP cloth 1 to be wrapped around the outer side of the constraint frame 2 to form a pouring space. The staff pours concrete between the CFRP cloth 1 and the constraint frame 2 with reference to the existing technology, and installs a group of prefabricated structures 3 on the inner position of the constraint frame 2. The prefabricated structure 3 is composed of concrete The soil component 301 and the steel bar 302 are composed together. The constraint frame 2 is a U-shaped structure. The shape of the constraint frame 2 is selected according to the shape of the concrete component 301. A group of mesh holes are opened on the basis of the constraint frame 2. The setting of the mesh holes makes the constraint frame 2 more stably combined with the concrete component 301. A group of steel bars 302 are poured inside the concrete component 301. A docking groove is opened above the steel bars 302. When two or more prefabricated structures 3 are docked, the bottom of the steel bars 302 extends into the inside of the docking groove. Therefore, the combination of the steel bars 302 can achieve a stable docking effect of two or more prefabricated structures 3.

[0036] In the embodiments of the present disclosure, reference Figures 1 to 8 As shown, a protective frame 4 and two anti-loosening plates 6 are installed at the bottom position of the concrete component 301, and a group of sealing grooves are respectively provided at the upper and lower positions of the concrete component 301, and the sealing grooves correspond to the rubber rings 401. When two or more prefabricated structures 3 are docked, the protective frame 4 is subjected to force to drive the rubber ring 401 to move, so that the rubber ring 401 can extend to the inside of the sealing groove. The rubber ring 401 achieves the effect of sealing the docking point of the steel bar 302, avoiding the phenomenon of moisture entering the inside of the steel bar 302 and being corroded. A positioning block is respectively provided on both sides of the protective frame 4, and a group of positioning grooves corresponding to the positioning blocks are provided at the upper position of the concrete component 301. When two or more prefabricated structures 3 are docked, the positioning blocks are installed in the interior of the positioning grooves to achieve In order to achieve the effect of positioning and reinforcing the docking position of the prefabricated structure 3, a group of evenly distributed positioning holes are provided at the bottom of the protective frame 4, and a rubber ring 401 is installed inside the positioning hole. A positioning groove is provided on the outer side of the rubber ring 401. With the cooperation of the positioning groove and the positioning hole, the protective frame 4 and the rubber ring 401 are firmly assembled. When the protective frame 4 moves, it can drive the rubber ring 401 to move stably. The bottom of the steel bar 302 passes through the inside of the rubber ring 401. It can be concluded that the through hole setting of the rubber ring 401 itself enables the protective frame 4 to move up and down when subjected to force. In addition, the protective frame 4 and the rubber ring 401 cooperate with each other to protect the steel bar 302, thereby avoiding collision damage to the steel bar 302 during transportation of the prefabricated structure 3.

[0037] In the embodiments of the present disclosure, reference Figures 1 to 8As shown, a sliding groove is provided on both sides of the bottom position of the concrete component 301, and both sides of the protective frame 4 are respectively installed in the inside of the sliding groove. The sliding groove realizes the circumferential and lateral positioning effect of the moving position of the protective frame 4, so that the protective frame 4 can move stably along the sliding groove when subjected to force. Two symmetrically distributed positioning bolts 5 are installed between the concrete component 301 and the protective frame 4, and two symmetrically distributed anti-loosening plates 6 are installed at the bottom position of the concrete component 301. A limiting ring is provided above the positioning bolt 5, and a group of locking blocks are provided at the bottom position of the anti-loosening plate 6. The locking block is a one-way limiting structure with an inclined surface, and a group of locking grooves corresponding to the locking block are provided above the limiting ring. After the positioning bolt 5 is installed, the locking groove of the locking block engages. It is concluded that the anti-loosening plate 6 can achieve the effect of preventing the positioning bolt 5 from loosening, avoiding In order to prevent the positioning bolts 5 of the prefabricated structure 3 from loosening during transportation, the sliding groove of the concrete component 301 is provided with a threaded groove and a positioning groove at the upper position, and the protective frame 4 is provided with a sliding hole at both sides of the upper position. The positioning bolt 5 passes through the interior of the sliding hole and is threadedly connected to the threaded groove. The threaded groove achieves the effect of thread locking the positioning bolt 5 installation position. A supporting spring is installed on the outside of the positioning bolt 5. The supporting spring elastically supports the protective frame 4 so that the protective frame 4 can be reset to protect the steel bar 302 during transportation of the prefabricated structure 3. A positioning block is provided on one side of the anti-loosening plate 6. The positioning block is a rectangular structure. The anti-loosening plate 6 is installed in the interior of the positioning groove in conjunction with the positioning block. A supporting spring is also installed in the interior of the positioning groove. The supporting spring elastically supports the anti-loosening plate 6. The positioning groove and the positioning block can achieve the effect of circumferential positioning of the anti-loosening plate 6.

[0038] Example 2, based on Example 1, refer to Figures 1 to 8 As shown, a casting mold corresponding to the concrete component 301 and the steel bar 302 needs to be provided so that the concrete component 301 and the steel bar 302 can be formed in the mold.

[0039] The working principle of this embodiment is as follows:

[0040] In the preparation steps of the prefabricated structure 3, the staff selects a suitable U-shaped constraint frame 2 according to the shape of the concrete component 301 to ensure that its mesh structure is complete and meets the requirements. The steel bars 302 in the prefabricated structure 3 are cast inside the concrete component 301 according to the design requirements, and a docking groove is reserved above the steel bars 302. Sealing grooves are opened at the upper and lower positions of the concrete component 301 respectively, and a rubber ring 401 is installed in the positioning hole at the bottom of the protective frame 4 so that the positioning groove of the rubber ring 401 fits tightly with the positioning hole to ensure that the rubber ring 401 is firmly assembled on the protective frame 4, and the bottom of the steel bar 302 passes through the inside of the rubber ring 401. The two sides of the protective frame 4 are installed in the sliding grooves on both sides of the bottom of the concrete component 301, so that the protective frame 4 can slide stably in the sliding groove and achieve circumferential and lateral positioning. Insert positioning bolts 5 into the sliding holes on both sides of the upper portion of the protective frame 4, threading the positioning bolts 5 through the sliding holes into the threaded grooves above the sliding grooves of the concrete member 301. Install support springs on the outer sides of the positioning bolts 5 to provide elastic support for the protective frame 4. Install the positioning blocks on one side of the anti-loosening plate 6 into the positioning grooves above the sliding grooves of the concrete member 301. Install support springs in the positioning grooves to elastically support the anti-loosening plate 6, thereby achieving circumferential positioning of the anti-loosening plate 6. At the same time, ensure that the limiting ring above the positioning bolt 5 and the locking block at the bottom of the anti-loosening plate 6 can engage with each other to achieve the anti-loosening function of the positioning bolt 5.

[0041] When the prefabricated structure 3 is assembled, the bottom of the steel bar 302 of one prefabricated structure 3 is aligned with the docking groove of the steel bar 302 of the other prefabricated structure 3, and the steel bar 302 is slowly lowered to extend the bottom of the steel bar 302 into the docking groove, so as to realize the preliminary docking positioning of the two groups of prefabricated structures 3 at the steel bar 302 level, so as to ensure the stability and connection strength of the overall structure. During the docking process, as the prefabricated structures 3 approach each other, the protective frame 4 is subjected to force and drives the rubber ring 401 to move, so that the rubber ring 401 extends to the inside of the sealing groove of the concrete component 301, forming a sealing structure, effectively preventing moisture from entering the docking of the steel bars 302 and avoiding corrosion of the steel bars 302. At the same time, the positioning blocks on both sides of the protective frame 4 are inserted into the corresponding positioning grooves to realize the positioning and reinforcement function of the prefabricated structures 3 when docking, further enhancing the stability and reliability of the overall structure, ensuring that the connection between the prefabricated structures 3 is accurate and firm, and can collaboratively withstand external loads.

[0042] In the overall protection and pouring step, concrete is poured in the pouring space formed by the support blocks on the outer side of the restraining frame 2, referring to existing techniques. Concrete is filled between the CFRP sheet 1 and the restraining frame 2, forming a further protective layer for the concrete member 301, enhancing the integrity and durability of the structure and improving its resistance to external environmental erosion and stress damage. After pouring is completed, the CFRP sheet 1, the restraining frame 2, and the concrete member 301 are ensured to be tightly integrated to form a composite protective structural system, fully leveraging the advantages of each component to jointly ensure the safety and stability of the concrete structure during use, extend its service life, and reduce maintenance costs.

[0043] Transportation and installation of the prefabricated structure 3. During the transportation of the prefabricated structure 3, the protective frame 4 can be reset to protect the steel bars 302 under the action of the supporting spring, and the positioning bolts 5 remain stable under the anti-loosening action of the anti-loosening plate 6. This can effectively avoid problems such as collision damage to the steel bars 302 and loosening of the positioning bolts 5 caused by transportation bumps, thereby ensuring the integrity and stability of the prefabricated structure 3 during transportation, reducing transportation losses and safety risks. After arriving at the installation site, the prefabricated structure 3 is accurately installed and positioned according to the design requirements, and connected and fixed with other building structures or components to form a complete building system or structure. During the installation process, care should be taken to protect the protective frame 4, rubber ring 401 and other components from damage to ensure their anti-loosening properties. The continuous effectiveness of the protective function, when two or more groups of prefabricated structures 3 are docked, the protective frame 4 is subjected to force, which will drive the rubber ring 401 to move, so that the rubber ring 401 can extend to the inside of the sealing groove, and the rubber ring 401 achieves the effect of sealing the docking point of the steel bar 302, avoiding the phenomenon of moisture entering the inside of the steel bar 302 and being corroded. The through-hole setting of the rubber ring 401 itself enables the protective frame 4 to move up and down when subjected to force. In addition, the protective frame 4 and the rubber ring 401 cooperate with each other to protect the steel bar 302, avoiding the steel bar 302 from being damaged by collision during transportation of the prefabricated structure 3. When two or more groups of prefabricated structures 3 are docked, the positioning block is installed inside the positioning groove to achieve the effect of positioning and reinforcing the docking position of the prefabricated structure 3.

[0044] In this article, there are several points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A precast concrete component, comprising: A CFRP cloth (1), a prefabricated structure (3) and positioning bolts (5), characterized in that a constraint frame (2) is installed inside the CFRP cloth (1), a group of support blocks are provided on the outer side of the constraint frame (2), a group of prefabricated structures (3) are installed on the inner side of the constraint frame (2), the prefabricated structure (3) is composed of a concrete component (301) and steel bars (302), a protective frame (4) and two anti-loosening plates (6) are installed at the bottom of the concrete component (301), two symmetrically distributed positioning bolts (5) are installed between the concrete component (301) and the protective frame (4), and two symmetrically distributed anti-loosening plates (6) are installed at the bottom of the concrete component (301).

2. A precast concrete component according to claim 1, characterized in that: The constraint frame (2) is a U-shaped structure. The shape of the constraint frame (2) is selected according to the shape of the concrete component (301). A group of mesh holes are opened on the basis of the constraint frame (2).

3. The precast concrete component according to claim 1, characterized in that: A group of steel bars (302) are cast inside the concrete component (301), and a butt joint groove is provided above the steel bars (302).

4. The precast concrete component according to claim 1, characterized in that: The concrete component (301) is provided with a set of sealing grooves at the upper and lower positions, respectively, and the sealing grooves correspond to the rubber rings (401).

5. The precast concrete component according to claim 1, characterized in that: A positioning block is provided on each side of the protective frame (4), and a group of positioning grooves corresponding to the positioning blocks are provided above the concrete component (301), and the positioning blocks are installed inside the positioning grooves.

6. The precast concrete component according to claim 1, characterized in that: A group of evenly distributed positioning holes are provided at the bottom of the protective frame (4), a rubber ring (401) is installed inside the positioning holes, a positioning groove is provided on the outer side of the rubber ring (401), and the bottom of the steel bar (302) passes through the inside of the rubber ring (401).

7. The precast concrete component according to claim 1, characterized in that: The bottom of the concrete component (301) is provided with a sliding groove on both sides, and the two sides of the protective frame (4) are respectively installed inside the sliding groove, and the sliding groove achieves the effect of circumferential and lateral positioning of the protective frame (4) when it moves.

8. The precast concrete component according to claim 1, characterized in that: The sliding groove of the concrete component (301) is provided with a thread groove and a positioning groove at the upper position, and the protective frame (4) is provided with a sliding hole at the upper two side positions respectively, and the positioning bolt (5) passes through the interior of the sliding hole and is threadedly connected to the thread groove, and a support spring is installed on the outer side of the positioning bolt (5), and a positioning block is provided on one side of the anti-loosening plate (6), and the positioning block is a rectangular structure. The anti-loosening plate (6) is installed in the interior of the positioning groove in conjunction with the positioning block, and a support spring is also installed in the interior of the positioning groove.

9. The precast concrete component according to claim 1, characterized in that: A limiting ring is provided above the positioning bolt (5), and a group of locking blocks are provided at the bottom of the anti-loosening plate (6). The locking blocks are one-way limiting structures with inclined surfaces. A group of locking grooves corresponding to the locking blocks are provided above the limiting ring, and the locking blocks and the locking grooves are engaged.

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