Fabricated concrete structure node connecting prefabricated part

Abstract

The utility model discloses an assembly type concrete structure node connecting prefabricated part which comprises a concrete prefabricated body, a plurality of sets of grouting cylinders are arranged in the bottom of the concrete prefabricated body, grouting openings are formed in the bottoms of the grouting cylinders, grout overflowing openings are formed in the tops of the grouting cylinders, and a plurality of connecting steel bars are arranged at the top of the concrete prefabricated body. The multiple connecting steel bars are connected through a positioning steel plate, and a pressurizing assembly is arranged in the grouting cylinder. Side edge bearing frames are arranged on the two sides of the concrete prefabricated body, and beam column bearing plates are arranged above the side edge bearing frames. When the assembly type concrete structure node connecting prefabricated part is used, a grouting pipe is connected into a grouting opening, grouting is continuously conducted, the interior of the grouting cylinder is rapidly filled with concrete grout, a part of the concrete grout overflows outwards through the overflow hole, the round pipe and the conical pipe shield the grout overflow opening, the pressure of the concrete grout in the grouting cylinder is increased, and the grouting effect is improved. The function of increasing the compactness of the slurry through pressurization in the cylinder is achieved, and the function of bonding and sealing the connecting face of the steel plate is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building accessories, and particularly relates to a precast part for connecting nodes of an assembled concrete structure. Background Art

[0002] An assembled concrete structure is a concrete structure mainly composed of precast components assembled and connected. The assembled reinforced concrete structure is one of the important development directions of building structures, which is beneficial to the development of building industrialization. It not only improves production efficiency and saves energy, but also helps to improve and ensure the quality of building projects.

[0003] When an assembled concrete structure is assembled, its connection nodes are usually connected by precast parts for node connection. The precast parts for node connection are mainly divided into two types. One is a concrete pouring component, which is connected through steel bars, grouting sleeves and upper and lower components. The other is a steel component, which is connected by riveting, welding and other methods. Each has its own advantages and disadvantages. Most of the common precast parts for concrete pouring node connection are similar in state structure, with concrete as the main material and a steel bar skeleton inside for support. It has connecting steel bars at the top, grouting sleeves at the bottom, and bearing frames for beams and columns on the side. There are some functional deficiencies in the actual use process and there is room for improvement. For example, when connecting the precast part for node connection with the bottom component, the connecting steel bars of the bottom component are inserted into the grouting sleeves at the bottom of the precast part for node connection and are reinforced by grouting. When grouting, the slurry gushes out when it reaches the overflow port, the pressure in the grouting cylinder is insufficient, the slurry is relatively loose and floating, and there is room for further improvement in the connection strength. It does not have the function of increasing the pressure in the cylinder to improve the compactness of the slurry. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a precast part for connecting nodes of an assembled concrete structure, which not only realizes the function of increasing the pressure in the cylinder to improve the compactness of the slurry, but also realizes the function of adjustable side support height.

[0005] The technical solution adopted by the utility model is that a precast part for connecting nodes of an assembled concrete structure includes a concrete precast main body. Multiple grouting cylinders are arranged inside the bottom of the concrete precast main body. A grouting port is arranged at the bottom of the grouting cylinder, and an overflow port is arranged at the top of the grouting cylinder. Multiple connecting steel bars are arranged at the top of the concrete precast main body, and the outside of the multiple connecting steel bars is connected by a welded positioning steel plate. A pressure increasing component is arranged inside the grouting cylinder. Side bearing brackets are arranged on both sides of the concrete precast main body, and a beam-column bearing plate is arranged above the side bearing brackets.

[0006] The characteristics of the utility model also lie in that

[0007] The pressurizing assembly includes a circular pipe which is arranged inside the slurry overflow opening. A conical pipe is provided at one end of the circular pipe away from the grouting cylinder. A bottom retaining ring is also arranged inside the bottom of the grouting cylinder, and a steel bar through hole is provided at the center of the bottom of the bottom retaining ring.

[0008] A plurality of overflow holes are provided on the outer ring at the bottom end of the bottom retaining ring; the outer diameter of the circular pipe is adapted to the inner diameter of the slurry overflow opening, and the interiors of the slurry overflow opening, the circular pipe and the conical pipe are connected and communicated.

[0009] Four groups of adjusting bolts are inserted into the top inside the side bearing bracket from bottom to top. A first positioning nut is sleeved on the outside of the adjusting bolts, a second positioning nut is arranged above the first positioning nut, and the top end of the adjusting bolts is movably connected to the bottom end of the beam-column bearing plate.

[0010] A rubber sealing edge is adhesively bonded to the outer ring at the top end of the positioning steel plate. An adhesive liquid is filled inside the rubber sealing edge, and a plurality of inner grooves are arranged on the inner wall of the rubber sealing edge, and the inner grooves are arranged at equal intervals.

[0011] The beneficial effects of the present utility model are as follows: The prefabricated component for connecting the joints of the assembled concrete structure of the present invention realizes the function of pressurizing inside the cylinder to improve the compactness of the slurry, and realizes the function of adjustable side support height, and realizes the function of adhesive sealing of the steel plate connection surface. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model;

[0013] Figure 2 is a side sectional view of the grouting cylinder in the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the bottom retaining ring in the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model;

[0015] Figure 4 is a schematic side view structural diagram of the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model;

[0016] Figure 5 is a schematic structural diagram of the positioning steel plate in the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model;

[0017] Figure 6 is a schematic structural diagram of the rubber sealing edge in the prefabricated component for connecting the joints of the assembled concrete structure of the present utility model.

[0018] In the figure: 1, precast concrete main body; 2, grouting cylinder; 3, grouting port; 4, overflow port; 5, round pipe; 6, conical pipe; 7, bottom retaining ring; 8, steel bar through hole; 9, overflow hole; 10, side support bracket; 11, beam-column support plate; 12, adjusting bolt; 13, first positioning nut; 14, second positioning nut; 15, connecting steel bar; 16, positioning steel plate; 17, rubber edge seal; 18, adhesive liquid; 19, inner groove. Detailed implementation manners

[0019] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0020] Embodiment 1

[0021] The prefabricated component for connecting nodes of the assembled concrete structure of the present utility model, as Figure 1 shown, includes a precast concrete main body 1. A plurality of grouting cylinders 2 are arranged inside the bottom of the precast concrete main body 1. A grouting port 3 is arranged at the bottom of the grouting cylinder 2, and an overflow port 4 is arranged at the top of the grouting cylinder 2. A plurality of connecting steel bars 15 are arranged at the top of the precast concrete main body 1. The outside of the plurality of connecting steel bars 15 is connected by a welded positioning steel plate 16. A pressure boosting assembly that can increase the grouting pressure is arranged inside the grouting cylinder 2;

[0022] As Figure 2 and Figure 3 shown, the pressure boosting assembly includes a round pipe 5. The round pipe 5 is arranged inside the overflow port 4. A conical pipe 6 is arranged at one end of the round pipe 5 away from the grouting cylinder 2. A bottom retaining ring 7 is also arranged inside the bottom of the grouting cylinder 2. A steel bar through hole 8 is arranged at the middle position of the bottom end of the bottom retaining ring 7. A plurality of overflow holes 9 are arranged on the outer ring of the bottom end of the bottom retaining ring 7; the outer diameter of the round pipe 5 is adapted to the inner diameter of the overflow port 4. The round pipe 5 can slide left and right along the inside of the overflow port 4. The horizontal center lines of the overflow port 4, the round pipe 5, and the conical pipe 6 coincide. The inside of the overflow port 4, the round pipe 5, and the conical pipe 6 are connected and communicated. The inner diameter of the steel bar through hole 8 is the same as the outer diameter of the connecting steel bar 15. The overflow holes 9 penetrate through the upper and lower ends of the bottom retaining ring 7, which can increase the grouting pressure and make the concrete slurry more compact and dense;

[0023] As Figure 4 shown, side support brackets 10 are arranged on both sides of the precast concrete main body 1. A beam-column support plate 11 is arranged above the side support brackets 10. Four groups of adjusting bolts 12 are inserted from bottom to top inside the top of the side support brackets 10. A first positioning nut 13 is sleeved outside the adjusting bolts 12. A second positioning nut 14 is arranged above the first positioning nut 13. The size specifications of the first positioning nut 13 and the second positioning nut 14 are the same. The thread inside the first positioning nut 13 coincides with the thread outside the adjusting bolts 12. The top end of the adjusting bolts 12 is movably connected to the bottom end of the beam-column support plate 11, which can adjust the supporting height;

[0024] (1) Loosen the first positioning nut 13 and the second positioning nut 14 to reserve enough space for the rotation of the adjusting bolt 12. Then rotate the adjusting bolt 12. The adjusting bolt 12 pushes the beam-column bearing plate 11 to move up and down. After adjusting to the appropriate height, tighten the first positioning nut 13 and the second positioning nut 14 again. The first positioning nut 13 and the second positioning nut 14 can fix the position of the adjusting bolt 12, so that the height of the beam-column bearing plate 11 is fixed synchronously, realizing the function of adjustable side support height.

[0025] Example 2

[0026] As Figure 5 and Figure 6 shown, a rubber seal 17 is adhesively bonded to the outer ring at the top of the positioning steel plate 16. An adhesive liquid 18 is filled inside the rubber seal 17. A plurality of inner grooves 19 are arranged on the inner wall of the rubber seal 17. The front, rear, left and right sides of the rubber seal 17 are flush with the front, rear, left and right sides of the positioning steel plate 16. The inner grooves 19 are arranged at equal intervals, which can increase the firmness of the connection with the upper component;

[0027] The rubber seal 17 is deformed under the pressure of the upper component. The inner grooves 19 are thinner. The adhesive liquid 18 overflows outward through the inner grooves 19, bonding the connection surface between the upper component and the positioning steel plate 16, increasing the firmness and sealing performance of the connection.

[0028] Example 3

[0029] The specific working principle of the prefabricated component for the joint connection of the assembled concrete structure of the present utility model is as follows:

[0030] First, the prefabricated concrete body 1 serves as the main body for connecting prefabricated parts. The connecting steel bars 15 on the top are used to connect with the concrete components above, and the grouting tube 2 at the bottom is used to connect with the column components below. The steel bars are inserted along the bottom of the grouting tube 2, and the steel bars pass through the bottom retaining ring 7 and the steel bar through hole 8. The grouting pipe is connected to the grouting port 3 and grouting is continued. The concrete slurry quickly fills the inside of the grouting tube 2, and part of it overflows outward through the overflow hole 9. The circular tube 5 and the conical tube 6 can form a shield for the overflow port 4, increase the concrete slurry pressure inside the grouting tube 2, and as the slurry pressure continues to increase, the circular tube 5 and the conical tube 6 can be pushed outward. The compactness of the slurry inside the grouting tube 2 can be improved by internal pressurization, thereby increasing the bonding strength. When the side beams and columns are butt-jointed with the connecting steel bars 15, the beam-column supporting plates 11 on the side supporting brackets 10 are supported at the bottom of the beams and columns. The height of the beam-column supporting plates 11 can be adjusted according to installation requirements. First, the first positioning nut 13 and the second positioning nut 14 are loosened to reserve sufficient space for the turning of the adjusting bolt 12. Then, the adjusting bolt 12 is rotated. The adjusting bolt 12 pushes the beam-column supporting plates 11 up and down. After adjusting to a suitable height, the first positioning nut 13 and the second positioning nut 14 are tightened again. The first positioning nut 13 and the second positioning nut 14 can fix the position of the adjusting bolt 12, so that the height of the beam-column supporting plates 11 is synchronously fixed. The upper member is connected to the connecting steel bar 15, and the connecting steel bar 15 is inserted into the grouting tube 2 of the upper member. The bottom surface of the upper member is in contact with the top of the positioning steel plate 16. The rubber edge seal 17 is deformed by the pressure of the upper member. The inner groove 19 is thinner. The adhesive liquid 18 overflows outward with the inner groove 19 as a breakthrough point, bonding the connection surface of the upper member and the positioning steel plate 16, increasing the firmness and sealing of the connection, and realizing the bonding and sealing function of the steel plate connection surface.

[0031] The assembled concrete structure node of the utility model is connected with prefabricated parts. When in use, the grouting pipe is connected to the grouting port and grouting is continued. The concrete slurry quickly fills the inside of the grouting tube and overflows partly to the outside through the overflow hole. The circular tube and the conical tube can form a shield for the overflow port, increase the concrete slurry pressure inside the grouting tube, and realize the function of increasing the pressure inside the tube to improve the compactness of the slurry.

Claims

1. Prefabricated concrete structure node connection prefabricated parts, characterized in that: The invention comprises a precast concrete body (1), wherein a plurality of grouting tubes (2) are arranged at the bottom of the precast concrete body (1), a grouting port (3) is arranged at the bottom of the grouting tube (2), a grouting port (4) is arranged at the top of the grouting tube (2), a plurality of connecting steel bars (15) are arranged at the top of the precast concrete body (1), the outsides of the plurality of connecting steel bars (15) are connected by welded positioning steel plates (16), and a booster assembly is arranged inside the grouting tube (2); side support brackets (10) are arranged on both sides of the precast concrete body (1), and a beam column support plate (11) is arranged above the side support brackets (10).

2. The prefabricated concrete structure node connection component according to claim 1, characterized in that: The booster assembly comprises a circular tube (5), the circular tube (5) being arranged inside the overflow port (4), a conical tube (6) being arranged at one end of the circular tube (5) away from the grouting tube (2), a bottom retaining ring (7) being arranged at the bottom of the grouting tube (2), and a steel bar through hole (8) being arranged at the center of the bottom of the bottom retaining ring (7).

3. The prefabricated concrete structure node connection component according to claim 2, characterized in that: The outer ring at the bottom end of the bottom retaining ring (7) is provided with a plurality of overflow holes (9); the outer diameter of the circular tube (5) is matched with the inner diameter of the overflow port (4); and the overflow port (4), the circular tube (5) and the interior of the conical tube (6) are connected.

4. The prefabricated concrete structure node connection component according to claim 1, characterized in that: Four groups of adjusting bolts (12) are inserted into the top of the inner side support bracket (10) from bottom to top, and the outer side of the adjusting bolt (12) is sleeved with a first positioning nut (13), and a second positioning nut (14) is arranged above the first positioning nut (13), and the top of the adjusting bolt (12) is movably connected to the bottom of the beam support plate (11).

5. The prefabricated concrete structure node connection component according to claim 1, characterized in that: The outer ring of the top end of the positioning steel plate (16) is glued with a rubber edge seal (17), the interior of the rubber edge seal (17) is filled with adhesive liquid (18), and the inner wall of the rubber edge seal (17) is provided with multiple groups of inner grooves (19), and the inner grooves (19) are arranged at equal intervals.

Images