Prefabricated building structure with high tensile strength

Abstract

The utility model relates to the technical field of prefabricated buildings, and discloses a prefabricated building structure with strong tensile capacity, which comprises concrete and a reinforcing steel bar body, a reserved cavity is arranged in the top end of the concrete, a reserved groove is arranged in the concrete, polyurethane rubber is fixedly connected outside the reserved groove, and the reinforcing steel bar body is arranged in the reserved cavity. The outer part of the polyurethane rubber is fixedly connected with a carbon nano tube, and the inner part of the concrete is mixed with tensile fibers. According to the prefabricated building structure with the high tensile capacity, parts such as concrete are arranged, tensile fibers are mixed in the concrete, polyurethane rubber is fixedly connected to the outer portion of a reserved groove, carbon nano tubes are fixedly connected to the outer portion of the polyurethane rubber, the tensile fibers are made of polypropylene fibers, and the prefabricated building structure has the certain tensile capacity; meanwhile, the carbon nanotubes and the polyurethane rubber also have certain tensile capacity, so that the overall tensile effect is enhanced, and the problems that the tensile capacity is not strong enough and the concrete is easy to break are solved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a prefabricated building structure with high tensile strength. Background Technology

[0002] Precast building structures refer to a construction method in which building components, such as concrete slabs, beams, and columns, are prefabricated in a factory and then assembled on the construction site. This method has advantages such as efficient construction, quality control, and resource conservation.

[0003] The existing precast building structure design has insufficient tensile strength, and the concrete is prone to cracking, making it unusable later. Therefore, it is necessary to improve its structure.

[0004] Now, a new type of prefabricated building structure with high tensile strength is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated building structure with strong tensile strength to solve the problem mentioned in the background art of insufficient tensile strength and easy cracking of concrete.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precast building structure with high tensile strength, comprising concrete and steel reinforcement bodies, wherein a reserved cavity is provided inside the top of the concrete, a reserved groove is provided inside the concrete, polyurethane rubber is fixedly connected to the outside of the reserved groove, carbon nanotubes are fixedly connected to the outside of the polyurethane rubber, and tensile fibers are mixed inside the concrete.

[0007] As a further technical solution of this utility model, the tensile fiber is made of polypropylene fiber.

[0008] As a further technical solution of this utility model, a reinforcing plate is snapped onto the top of the reserved cavity, and thermal insulation cotton is provided inside the reserved cavity. A first thermal insulation board is provided at the top of the thermal insulation cotton, and a second thermal insulation board is provided at the bottom of the thermal insulation cotton. A positioning block is fixedly connected to the bottom of the second thermal insulation board.

[0009] As a further technical solution of this utility model, a positioning groove is provided inside the bottom end of the reserved cavity, and the positioning block is embedded in the positioning groove and is detachable.

[0010] As a further technical solution of this utility model, the first insulation board and the second insulation board are made of the same material and have the same thickness.

[0011] As a further technical solution of this utility model, the positioning blocks are provided in seven groups, and the positioning blocks are distributed at equal intervals at the bottom end of the second insulation board.

[0012] As a further technical solution of this utility model, a first connecting seat is fixedly connected to both sides of the steel bar body, a second connecting seat is provided on one side of the first connecting seat, and assembly holes are provided at the four corners of one side of the first and second connecting seats. A double-ended screw is provided through the inside of the assembly hole, and locking nuts are movably connected to both sides of the outside of the double-ended screw.

[0013] As a further technical solution of this utility model, a fixing ring is fixedly connected to one side of the second connecting seat, and the second connecting seat is detachable from the first connecting seat through the assembly hole and the double-ended screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the prefabricated building structure with strong tensile strength not only enhances the tensile effect and improves the thermal insulation performance, but also makes it easier to stabilize the steel bars during pre-tensioning and prevents them from falling off.

[0015] (1) By setting up concrete, tensile fiber, carbon nanotube, polyurethane rubber and reserved groove, because tensile fiber is mixed in the concrete, polyurethane rubber is fixedly connected to the outside of the reserved groove, and carbon nanotube is fixedly connected to the outside of the polyurethane rubber, the tensile fiber is made of polypropylene fiber, which has a certain tensile strength, and carbon nanotube and polyurethane rubber also have a certain tensile strength, so that the overall tensile effect is enhanced.

[0016] (2) By setting up tensile fibers, reinforcing plates, reserved cavities, first insulation boards, insulation cotton, positioning grooves, and positioning blocks, and using the positioning blocks evenly distributed on the second insulation board, the positioning blocks can be inserted into the positioning grooves in the concrete, and then covered with a layer of insulation cotton, and then covered with a layer of the first insulation board on top of the insulation cotton, so as to improve the internal insulation performance.

[0017] (3) By setting up a steel bar body, a first connecting seat, a second connecting seat, an assembly hole, a double-ended screw, a locking nut, and a fixing ring, when conducting tensile tests, the second connecting seat can be placed on one side of the first connecting seat, the double-ended screw can be screwed through the assembly hole, the locking nut can be screwed onto the outside of the double-ended screw, and the fixing ring can be connected to the jack, which facilitates stable testing of tensile strength. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 A front view structural diagram illustrating the connection method between the second insulation board and concrete according to this utility model;

[0020] Figure 3 This is a side view of the connection between the reserved groove and the polyurethane rubber in this utility model.

[0021] Figure 4 This is a front view structural diagram of the connection method between the reinforcing bar and the second connecting seat of this utility model.

[0022] In the diagram: 1. Concrete; 2. Tensile fiber; 3. Reinforcing plate; 4. Reserved cavity; 5. First insulation board; 6. Insulation cotton; 7. Positioning groove; 8. Positioning block; 9. Carbon nanotubes; 10. Polyurethane rubber; 11. Reserved groove; 12. Reinforcing bar body; 13. First connecting seat; 14. Second connecting seat; 15. Assembly hole; 16. Double-ended screw; 17. Locking nut; 18. Fixing ring; 19. Second insulation board. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides an embodiment of a prefabricated building structure with high tensile strength, including concrete 1 and steel reinforcement body 12. A reserved cavity 4 is provided inside the top of the concrete 1, a reserved groove 11 is provided inside the concrete 1, a polyurethane rubber 10 is fixedly connected to the outside of the reserved groove 11, a carbon nanotube 9 is fixedly connected to the outside of the polyurethane rubber 10, and tensile fibers 2 are mixed inside the concrete 1.

[0025] The tensile fiber 2 is made of polypropylene fiber;

[0026] Specifically, such as Figure 1 and Figure 3 As shown, because tensile fibers 2 are mixed in concrete 1, polyurethane rubber 10 is fixedly connected to the outside of the reserved groove 11, and carbon nanotubes 9 are fixedly connected to the outside of the polyurethane rubber 10, the tensile fibers 2 are made of polypropylene fibers and have a certain tensile strength. At the same time, carbon nanotubes 9 and polyurethane rubber 10 also have a certain tensile strength, which enhances the overall tensile effect.

[0027] A reinforcing plate 3 is snapped onto the top of the reserved cavity 4. Insulation cotton 6 is installed inside the reserved cavity 4. A first insulation plate 5 is installed at the top of the insulation cotton 6. A second insulation plate 19 is installed at the bottom of the insulation cotton 6. A positioning block 8 is fixedly connected to the bottom of the second insulation plate 19.

[0028] The bottom end of the reserved cavity 4 is provided with a positioning groove 7, and the positioning block 8 is embedded in the positioning groove 7 and is detachable.

[0029] The first insulation board 5 and the second insulation board 19 are made of the same material and have the same thickness;

[0030] Seven sets of positioning blocks 8 are provided, and the positioning blocks 8 are evenly distributed at the bottom end of the second insulation board 19;

[0031] Specifically, such as Figure 1 and Figure 2 As shown, by using the positioning blocks 8 evenly distributed on the second insulation board 19, the positioning blocks 8 can be inserted into the positioning grooves 7 in the concrete 1, and then covered with a layer of insulation cotton 6. The top of the insulation cotton 6 is then covered with a layer of the first insulation board 5, which can improve the internal insulation performance.

[0032] The two sides of the steel bar body 12 are fixedly connected to the first connecting seat 13, and the first connecting seat 13 is provided with the second connecting seat 14 on one side. The four corners of the first connecting seat 13 and the second connecting seat 14 are provided with the assembly hole 15. The assembly hole 15 is provided with the double-ended screw 16 through, and the two sides of the double-ended screw 16 are movably connected with the locking nut 17.

[0033] A retaining ring 18 is fixedly connected to one side of the second connecting seat 14. The second connecting seat 14 is detachable from the first connecting seat 13 through the assembly hole 15 and the double-ended screw 16.

[0034] Specifically, such as Figure 1 and Figure 4 As shown, when conducting a tensile test, the second connecting seat 14 can be placed on one side of the first connecting seat 13, and the double-ended screw 16 can be screwed into the assembly hole 15. The locking nut 17 can be screwed onto the outside of the double-ended screw 16, and the fixing ring 18 can be used to connect to the jack for convenient and stable testing of tensile strength.

[0035] Working principle: When using this utility model, firstly, during the tensile test, the second connecting seat 14 can be placed on one side of the first connecting seat 13. The double-ended screw 16 is screwed through the assembly hole 15, and the locking nut 17 is screwed onto the outside of the double-ended screw 16. The fixing ring 18 can be connected to the jack for convenient and stable testing of tensile strength. Then, because the concrete 1 contains tensile fiber 2, and the pre-reserved groove 11 is fixedly connected to the outside of polyurethane rubber 10, and the polyurethane rubber 10 is fixedly connected to the outside of carbon nanotubes 9, the tensile fiber 2 is made of polypropylene fiber and has a certain tensile strength. At the same time, the carbon nanotubes 9 and polyurethane rubber 10 also have a certain tensile strength, which enhances the overall tensile effect. Finally, using the positioning blocks 8 evenly distributed on the second insulation board 19, the positioning blocks 8 can be inserted into the positioning groove 7 in the concrete 1, and then a layer of insulation cotton 6 is covered. The top of the insulation cotton 6 is then covered with a layer of the first insulation board 5, which improves the internal insulation performance.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated building structure with high tensile strength, comprising a concrete (1) and a steel reinforcement body (12), characterized in that: The inside of the top end of the concrete (1) is provided with a reserved cavity (4), the inside of the concrete (1) is provided with a reserved groove (11), the outside of the reserved groove (11) is fixedly connected with a polyurethane rubber (10), the outside of the polyurethane rubber (10) is fixedly connected with a carbon nanotube (9), and the inside of the concrete (1) is mixed with a tensile fiber (2).

2. The prefabricated building structure according to claim 1, characterized in that: The material of the tensile fiber (2) is polypropylene fiber.

3. The prefabricated building structure according to claim 1, characterized in that: The top end of the reserved cavity (4) is clamped with a reinforcing plate (3), the inside of the reserved cavity (4) is provided with thermal insulation cotton (6), the top end of the thermal insulation cotton (6) is provided with a first thermal insulation plate (5), the bottom end of the thermal insulation cotton (6) is provided with a second thermal insulation plate (19), and the bottom end of the second thermal insulation plate (19) is fixedly connected with a positioning block (8).

4. The prefabricated building structure according to claim 3, characterized in that: The inside of the bottom end of the reserved cavity (4) is provided with a positioning groove (7), and the positioning block (8) is detachably embedded in the inside of the positioning groove (7).

5. The prefabricated building structure according to claim 3, characterized in that: The material and thickness of the first thermal insulation plate (5) and the second thermal insulation plate (19) are the same.

6. The prefabricated building structure according to claim 3, characterized in that: Seven positioning blocks (8) are arranged, and the positioning blocks (8) are equally spaced at the bottom end of the second thermal insulation plate (19).

7. The prefabricated building structure according to claim 1, characterized in that: The two sides of the steel body (12) are fixedly connected with a first connecting seat (13), one side of the first connecting seat (13) is provided with a second connecting seat (14), four corners on one side of the first connecting seat (13) and the second connecting seat (14) are provided with an assembly hole (15), a double-headed screw rod (16) penetrates through the inside of the assembly hole (15), and the outside of the double-headed screw rod (16) is movably connected with a locking nut (17) on both sides.

8. The prefabricated building structure according to claim 7, characterized in that: One side of the second connecting seat (14) is fixedly connected with a fixed ring (18), and the second connecting seat (14) is detachable through the first connecting seat (13) between the assembly hole (15) and the double-headed screw rod (16).

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