Auxiliary mounting device for tubular pile core filling reinforcement cage

Abstract

The utility model provides an auxiliary installation device for a tubular pile core-filling reinforcement cage, which comprises a positioning ring and a bottom template, a plurality of limiting clamps are arranged on the positioning ring, and the limiting clamps extend to the inner side of the positioning ring along the radial direction of the positioning ring; a sealing ring gasket and a limiting elastic piece are arranged on the side, close to the positioning ring, of the bottom template, and the outer diameter of the sealing ring gasket is larger than the diameter of the bottom template. And the free end of the limiting elastic sheet exceeds the side edge of the bottom template and is bent towards the positioning ring. The top end and the bottom end of the reinforcement cage are limited through the positioning rings, the limiting clamps, the bottom formwork and the limiting elastic pieces, the coaxiality of the reinforcement cage and the pipe pile, the spacing uniformity of main reinforcements of the reinforcement cage and the perpendicularity of the reinforcement cage are adjusted, the gap between the bottom formwork and the inner wall of the pipe pile is blocked through the sealing ring gasket, and concrete leakage is prevented; and the construction quality of the pipe pile top is comprehensively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction of core-filled steel reinforcement cages for pipe piles, in particular to an auxiliary installation device for core-filled steel reinforcement cages of pipe piles. Background Art

[0002] Pre-stressed pipe piles are widely used in coastal areas and soft soil areas due to their good stability and seismic resistance. Most of the top parts of pipe piles need to be connected to the foundation by core filling to meet the requirements of bearing capacity and anti-pulling. However, due to the errors in the prefabrication process of pipe piles, the inner diameters of various parts of the pipe piles are usually not uniform, and it is very difficult to smoothly place the steel bearing plates processed according to the nominal inner diameter of the pipe piles at the specified depth inside the pipe piles. To smoothly place the steel bearing plates, the conventional method is to reduce the diameter of the steel bearing plates, but this will increase the gap between the steel bearing plates and the inner wall of the pipe piles. On the one hand, the perpendicularity of the steel bars cannot be controlled, and the spacing of the steel bars at the top of the pile is not easy to adjust. On the other hand, during the process of pouring core-filled concrete, the cement slurry is likely to leak from the gap between the steel bearing plate and the inner wall of the pipe pile, thus unable to ensure the construction quality of the core filling of the pipe pile. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an auxiliary installation device for a core-filled steel reinforcement cage of a pipe pile to solve the problems in the above background.

[0004] The technical solution of the utility model includes: an auxiliary installation device for a core-filled steel reinforcement cage of a pipe pile, which comprises:

[0005] A positioning ring, on which a plurality of limit cards are provided, and the limit cards extend radially to the inner side of the positioning ring;

[0006] A bottom template, on one side of the bottom template close to the positioning ring, a sealing ring gasket and a limit elastic piece are provided. The outer diameter of the sealing ring gasket is larger than the diameter of the bottom template; the free end of the limit elastic piece extends beyond the side edge of the bottom template and bends towards the positioning ring.

[0007] Preferably, the limit elastic piece includes a first piece section, a second piece section and a third piece section connected in sequence. The first piece section is fixedly arranged on the bottom template; the third piece section is located outside the bottom template, and its extending direction is parallel to the axis of the bottom template.

[0008] Preferably, the limit elastic pieces are evenly distributed around the circumferential direction of the bottom template, and the first piece section and the bottom template are connected by a high-strength bolt one.

[0009] Preferably, a plurality of the limit cards are evenly distributed around the circumferential direction of the positioning ring, and an arc-shaped groove is provided at the end part of the limit card located inside the positioning ring.

[0010] Preferably, the distance between each arc-shaped groove and the inner wall of the positioning ring is the same.

[0011] Preferably, the positioning ring includes a plate portion and a cylindrical portion. The plate portion and the cylindrical portion are coaxially distributed. The outer diameter of the plate portion is greater than that of the cylindrical portion. The limit is clamped on the plate portion.

[0012] Preferably, a flange plate is provided on one side of the sealing ring gasket away from the bottom template. The bottom template, the sealing ring gasket and the flange plate are connected by high-strength bolts II.

[0013] Preferably, the sealing ring gasket is an annular rubber gasket.

[0014] The beneficial effects of the present utility model are as follows: By means of the positioning ring, the limit card, the bottom template and the limit elastic piece, the top and bottom ends of the steel reinforcement cage are limited, the coaxiality between the steel reinforcement cage and the pipe pile, the uniformity of the main reinforcement spacing of the steel reinforcement cage, and the verticality of the steel reinforcement cage are adjusted. The gap between the bottom template and the inner wall of the pipe pile is sealed by the sealing ring gasket to prevent the concrete from leaking down, comprehensively improving the construction quality of the top of the pipe pile. Description of the Drawings

[0015] Figure 1 is the use state diagram of the embodiment of the present utility model;

[0016] Figure 2 is the enlarged view of the structure at A in the embodiment of the present utility model; Figure 1 in the attached

[0017] Figure 3 is the front view and bottom view of the positioning ring in the embodiment of the present utility model;

[0018] Figure 4 is the enlarged view of the structure at B in the embodiment of the present utility model; Figure 1 in the attached

[0019] Figure 5 is the top view of the connection between the bottom template and the flange plate in the embodiment of the present utility model;

[0020] Figure 6 is the structure diagram of the limit elastic piece in the embodiment of the present utility model.

[0021] In the figure:

[0022] 1. Positioning ring; 1-1. Plate portion; 1-2. Cylindrical portion;

[0023] 2. Bottom template;

[0024] 3. Limit card; 3-1. Arc groove;

[0025] 4. Sealing ring gasket;

[0026] 5. Limit elastic piece; 5-1. First piece section; 5-2. Second piece section; 5-3. Third piece section;

[0027] 6. Pipe pile;

[0028] 7. Steel reinforcement cage;

[0029] 8. High-strength bolt I;

[0030] 9. Flange plate;

[0031] 10. High-strength bolt II. Detailed implementation manner

[0032] Next, in combination with the embodiments of the present invention, the technical solutions of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0035] Refer to the attached Figures 1-6, this embodiment provides an auxiliary installation device for the core filling steel reinforcement cage of a pipe pile, which includes: a positioning ring 1, a bottom formwork 2, a limit clamp 3, a sealing ring gasket 4, and a limit spring piece 5. The positioning ring 1 and the bottom formwork 2 are respectively arranged at different positions in the pipe pile 6 along the vertical direction. The positioning ring 1 is located at the top of the pipe pile 6, and the bottom formwork 2 is located inside the pipe pile 6, that is, below the positioning ring 1. That is, the diameter of the bottom formwork 2 is smaller than the inner diameter of the pipe pile 6. A plurality of limit clamps 3 are provided on the positioning ring 1. The limit clamps 3 extend radially along the positioning ring 1 to its inner side, and are used to limit the main bars of the steel reinforcement cage 7 in the pipe pile 6 to ensure uniform spacing of the main bars. The bottom formwork 2 serves as the pouring formwork for the core filling concrete of the pipe pile 6, and is provided with a sealing ring gasket 4 and a limit spring piece 5. The sealing ring gasket 4 and the limit spring piece 5 are arranged on the side of the bottom formwork 2 close to the positioning ring 1, that is, on the top surface of the bottom formwork 2. The outer diameter of the sealing ring gasket 4 is larger than the diameter of the bottom formwork 2, and is used to block the gap between the bottom formwork 2 and the side wall of the pipe pile 6 to prevent the core filling concrete of the pipe pile 6 from falling from the gap and improve the construction quality of the bottom of the core filling of the pipe pile 6. The free end of the limit spring piece 5 extends beyond the side edge of the bottom formwork 2 and bends towards the positioning ring 1. During the construction process, the limit spring piece 5 abuts against the inner wall of the pipe pile 6 to adjust the coaxiality of the bottom formwork 2 and the positioning ring 1 and ensure the perpendicularity of the steel reinforcement cage 7 connected thereto.

[0036] The positioning ring 1 includes a plate part 1-1 and a cylindrical part 1-2. The plate part 1-1 and the cylindrical part 1-2 are coaxially distributed. The outer diameter of the plate part 1-1 is larger than the outer diameter of the cylindrical part 1-2. The outer diameter of the cylindrical part 1-2 is smaller than or equal to the inner diameter of the pipe pile 6. The outer diameter of the plate part 1-1 is larger than the inner diameter of the pipe pile 6, so that the cylindrical part 1-2 can extend into the pipe pile 6, and the plate part 1-1 is placed on the top of the pipe pile 6 to firmly connect the positioning ring 1 and the pipe pile 6. Preferably, the outer diameter of the cylindrical part 1-2 is equal to the inner diameter of the pipe pile 6. Since the side wall of the cylindrical part 1-2 has a certain height, then abutting the cylindrical part 1-2 against the side wall of the pipe pile 6 can ensure the coaxiality of the positioning ring 1 and the pipe pile 6, reduce the construction time for adjusting the position of the positioning ring 1 and the fixing measures for the plate part 1-1. When the outer diameter of the cylindrical part 1-2 is smaller than the inner diameter of the pipe pile 6, although the positioning ring 1 can be successfully placed on the top of the pipe pile 6, the coaxiality of the positioning ring 1 and the pipe pile 6 needs to be finely adjusted, and the position of the plate part 1-1 needs to be fixed after adjustment, and its operation is slightly more cumbersome than the previous implementation scheme.

[0037] The limit clamps 3 are arranged on the plate part 1-1 of the positioning ring 1, and a plurality of them are evenly distributed around the circumference of the plate part 1-1. The limit clamps 3 extend radially along the plate part 1-1 and extend into the inner side of the positioning ring 1. The end part located inside the positioning ring 1 is provided with an arc-shaped groove 3-1. The axis of the arc-shaped groove 3-1 is vertical to fit the side wall of the main bar of the steel reinforcement cage 7. Through the uniformly arranged plurality of limit clamps 3 and the arc-shaped grooves 3-1, the main bars of the steel reinforcement cage 7 are limited one by one to ensure the uniformity of the spacing of the main bars, improve the uniform distribution of the steel bars in the pile top structure, and improve its structural strength and construction quality.

[0038] The limit card 3 can be welded or fixed to the plate part 1-1 of the positioning ring 1 by bolts. The distance between each arc-shaped groove 3-1 and the inner wall of the plate part 1-1 is the same. On the premise of ensuring the coaxiality of the positioning ring 1 and the pipe pile 6, the coaxiality between the top of the steel reinforcement cage 7 and the pipe pile 6 is guaranteed.

[0039] A plurality of limit elastic pieces 5 are evenly distributed circumferentially around the bottom formwork 2. It includes a first piece section 5-1, a second piece section 5-2 and a third piece section 5-3 which are connected in sequence. The first piece section 5-1 is fixed on the bottom formwork 2, and the third piece section 5-3 is located outside the bottom formwork 2, and its extending direction is parallel to the axis of the bottom formwork 2. If it is necessary to ensure that the bottom formwork 2 can extend into the pipe pile 6 to a specified depth, the diameter of the bottom formwork 2 should be smaller than the minimum inner diameter of the pipe pile 6, and the third piece section 5-3 located outside the bottom formwork 2 is used to ensure the coaxiality between the bottom formwork 2 and the pipe pile 6. During construction, the inner diameter of the pipe pile 6 at the specified depth is measured in advance, and the limit elastic pieces 5 with appropriate sizes are manufactured or the standardized-sized limit elastic pieces 5 are adjusted to appropriate positions to satisfy that the distance between the third piece section 5-3 and the axis of the bottom formwork 2 is exactly the inner diameter of the pipe pile 6 at the specified depth. After the bottom formwork 2 and the steel reinforcement cage 7 are lowered to the specified depth, by abutting each third piece section 5-3 against the inner wall of the pipe pile 6, no abnormal deformation of each piece section of the limit elastic piece 5 is required (similar to the control principle of the coaxiality between the cylindrical part 1-2 of the positioning ring 1 and the pipe pile 6).

[0040] The limit elastic piece 5 can be a prefabricated component with a standardized size. Before installing it on the bottom formwork 2, according to the size and position requirements, holes are drilled in the first piece section 5-1 at the construction site, and it can be connected to the bottom formwork 2 through the first high-strength bolt 8.

[0041] In this embodiment, the sealing ring gasket 4 can be an annular rubber gasket. To improve its connection stability with the bottom formwork 2, a flange plate 9 is provided on the side away from the bottom formwork 2. The outer diameter of the flange plate 9 can be the same as that of the bottom formwork 2. The bottom formwork 2, the sealing ring gasket 4 and the flange plate 9 are connected through the second high-strength bolt 10. During installation, the limit elastic piece 5 should be located above the sealing ring gasket 4 and below the flange plate 9 to facilitate observing the coaxiality and improve the installation stability of the limit elastic piece 5. Therefore, at an appropriate position, the first high-strength bolt 8 for fixing the limit elastic piece 5 and the second high-strength bolt 10 for fixing the flange plate 9 can be configured as the same component to reduce the construction cost.

[0042] The method for constructing the concrete at the pile top using this device includes the steps:

[0043] Weld and fix the bottom end of the steel reinforcement cage 7 to the bottom formwork 2. When welding, attention should be paid to the coaxiality between the steel reinforcement cage 7 and the bottom formwork 2;

[0044] Configure the size and installation position of the limit elastic sheet 5 according to the inner diameter of the pipe pile 6 corresponding to the bottom elevation of the pile top concrete, and firmly connect the limit elastic sheet 5 to the bottom formwork 2;

[0045] Lower the steel reinforcement cage 7 and the bottom formwork 2 to the bottom elevation of the pile top concrete, and adjust the limit elastic sheet 5 to abut against the inner wall of the pipe pile 6 without abnormal deformation;

[0046] Set a positioning ring 1 at the top of the steel reinforcement cage 7, place the positioning ring 1 on the top of the pipe pile 6, and after connecting the main bars of the steel reinforcement cage 7 to the arc-shaped groove 3-1 on the limit clamp 3, the pouring work of the pile top concrete can be carried out.

[0047] Compared with the prior art, the beneficial effects of the present utility model are as follows: By means of the positioning ring 1, the limit clamp 3, the bottom formwork 2 and the limit elastic sheet 5, the top and bottom ends of the steel reinforcement cage 7 are limited, and the coaxiality between the steel reinforcement cage 7 and the pipe pile 6, the uniformity of the main bar spacing of the steel reinforcement cage 7, and the perpendicularity of the steel reinforcement cage 7 are adjusted. The gap between the bottom formwork 2 and the inner wall of the pipe pile 6 is sealed by the sealing ring gasket 4 to prevent the concrete from leaking down, comprehensively improving the construction quality of the pile top of the pipe pile 6.

[0048] The above is the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An auxiliary installation device for a pipe pile core-filled steel cage, characterized in that: include: A positioning ring, wherein a plurality of limit clips are provided on the positioning ring, and the limit clips extend radially along the positioning ring to the inner side thereof; A bottom template, a sealing ring gasket and a limiting spring sheet are provided on one side of the bottom template close to the positioning ring, the outer diameter of the sealing ring gasket is larger than the diameter of the bottom template; the free end of the limiting spring sheet exceeds the side edge of the bottom template and bends toward the positioning ring.

2. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 1 is characterized in that: The limiting spring piece includes segment 1, segment 2 and segment 3 which are connected in sequence, wherein segment 1 is fixed on the bottom template; segment 3 is located outside the bottom template, and its extension direction is parallel to the axis of the bottom template.

3. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 2 is characterized in that: The limiting spring pieces are evenly distributed around the circumference of the bottom template, and the segment 1 is connected to the bottom template via a high-strength bolt 1.

4. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 1 is characterized in that: A plurality of the limit clamps are evenly distributed around the circumference of the positioning ring, and arc grooves are arranged at the ends of the limit clamps located inside the positioning ring.

5. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 4 is characterized in that: The distances between the arc-shaped grooves and the inner wall of the positioning ring are the same.

6. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 1, characterized in that: The positioning ring comprises a plate portion and a cylinder portion, the plate portion and the cylinder portion are coaxially distributed, the outer diameter of the plate portion is greater than the outer diameter of the cylinder portion, and the limit clamp is arranged on the plate portion.

7. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 1 is characterized in that: A flange plate is provided on one side of the sealing ring gasket away from the bottom template, and the bottom template, the sealing ring gasket and the flange plate are connected by two high-strength bolts.

8. The auxiliary installation device for the pipe pile core-filled steel cage according to claim 7, characterized in that: The sealing ring gasket is an annular rubber gasket.

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