Supporting-free node structure based on upper prefabricated part of assembly type long-piled wharf

Abstract

The utility model discloses a support-free node structure based on an upper prefabricated part of an assembly type high-pile wharf, which comprises a cavity arranged in the upper prefabricated part and formed by upwards and inwards concaving the bottom surface of the upper prefabricated part; the cavity is cylindrical, and the diameter of the cavity is larger than the outer diameter of a pile foundation so that the top of the pile foundation can stretch into the cavity. A plurality of shelving ribs are arranged on the inner wall of the cavity at intervals, and the height of the shelving ribs is smaller than that of the cavity, so that after the pile foundation extends into the cavity, the top surface of the pile foundation abuts against the bottom surfaces of the shelving ribs; a grouting hole is formed in the top of the upper prefabricated part and communicates with the cavity. The cavity is filled with a grouting layer, and the upper prefabricated part and the pile foundation are connected into a whole through the grouting layer. The assembly rate and the construction efficiency of the assembly type high-pile wharf can be improved, and the construction quality of the node structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of assembled wharf construction, and more specifically, to a support-free node structure based on the upper prefabricated components of an assembled high-pile wharf. Background Art

[0002] With the rapid development of prefabricated structures, the assembly rate of prefabricated high-pile docks has reached more than 75%. The connection nodes of various components are the key and difficult points in the design and construction of prefabricated docks. Reasonable node design will greatly improve the construction speed and reduce costs, thereby truly meeting the requirements of prefabricated high-pile dock structures. The structure of a high-pile dock is generally composed of pile foundations, pile caps, transverse and longitudinal beams, and panels. Pile foundations, beams and panels can be prefabricated or partially prefabricated; but due to the particularity of the wharf construction environment, beams and pile caps are mostly cast-in-place structures, resulting in a lower overall assembly rate; and the existing prefabricated pile caps or prefabricated beams are mostly set by setting columnar or step-shaped cavities. When connected, the top surface of the pile foundation directly abuts against the inner top surface of the cavity, and then grouting is poured into the cavity. The density of the grouting material in the cavity of this node structure is poor, which leads to poor strength of the node structure. Therefore, a node structure based on the upper prefabricated components of the assembled high-pile wharf is needed to solve the problem of the connection node between the pile foundation of the assembled high-pile wharf and the upper prefabricated beams or prefabricated pile caps, improve the overall assembly efficiency, and ensure that the quality of the node structure meets the requirements. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] In order to achieve these purposes and other advantages according to the utility model, there is provided a support-free node structure based on the upper prefabricated components of an assembled high-pile wharf, comprising: a cavity arranged in the upper prefabricated component, the cavity being formed by the bottom surface of the upper prefabricated component being concave upward; the cavity being cylindrical, and having a diameter larger than the outer diameter of the pile foundation, so that the top of the pile foundation can extend into the cavity; a plurality of resting ribs are arranged at intervals on the inner wall of the cavity, the height of the resting ribs being smaller than the height of the cavity, so that after the pile foundation extends into the cavity, the top surface of the pile foundation abuts against the bottom surface of each of the resting ribs; a grouting hole is opened on the top of the upper prefabricated component, the grouting hole is connected to the cavity; the cavity is filled with a grouting layer, and the grouting layer connects the upper prefabricated component and the pile foundation as a whole.

[0005] Preferably, the number of grouting holes is two and they are arranged close to the center of the cavity.

[0006] Preferably, the plurality of the resting ribs are symmetrically arranged about the center of the cavity, and the width of the resting ribs is smaller than the radius of the cavity.

[0007] Preferably, the horizontal cross-section of the resting rib is trapezoidal in shape, with a shorter side close to the center of the cavity.

[0008] Preferably, the width of the resting rib is greater than the distance between the inner wall of the pile foundation and the inner wall of the cavity.

[0009] Preferably, the distance between the inner wall of the cavity and the outer wall of the pile foundation is 20 to 30 mm.

[0010] The utility model at least has the following beneficial effects:

[0011] The utility model provides a support-free node structure based on the upper prefabricated components of the assembled high-pile wharf. The upper prefabricated components are placed on the pile foundation by means of placing ribs, and there is no need to provide supporting measures such as clamps on the periphery of the pile foundation, thereby reducing the workload of water operations and improving the assembly rate and construction efficiency of the assembled high-pile wharf. At the same time, the placing ribs do not completely occupy the cavity space on the top of the pile foundation, which can effectively improve the grouting efficiency and grouting density, and ensure the construction quality of the node structure.

[0012] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side structural schematic diagram of the support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to the utility model;

[0014] Figure 2 It is a top view of the bottom of the support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to the utility model; DETAILED DESCRIPTION

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0016] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] like Figure 1 and Figure 2 As shown, the utility model provides a support-free node structure based on the upper prefabricated components of an assembled high-pile wharf, comprising: a cavity 3 arranged in the upper prefabricated component 1, the cavity 3 being formed by the bottom surface of the upper prefabricated component 1 being concave upward; the cavity 3 is cylindrical, and its diameter is larger than the outer diameter D of the pile foundation 4, so that the top of the pile foundation 4 can extend into the cavity 3; a plurality of resting ribs 2 are arranged on the inner wall of the cavity 3 at intervals, and the height of the resting ribs 2 is smaller than the height of the cavity 3, so that after the pile foundation 4 extends into the cavity 3, the top surface of the pile foundation 4 abuts against the bottom surface of each of the resting ribs 2; a grouting hole 5 is opened on the top of the upper prefabricated component, and the grouting hole 5 is connected to the cavity 3; the cavity 3 is filled with a grouting layer, and the grouting layer connects the upper prefabricated component 2 and the pile foundation 4 as a whole.

[0018] In this technical solution, the upper prefabricated component 1 is a prefabricated pile cap or a prefabricated crossbeam, which is placed on the pile foundation 4 through the placing rib 2, that is, the pile top of the pile foundation 4 is used to support the placing rib 2, and then support the upper prefabricated component 1, and there is no need to set support measures such as clamps on the periphery of the pile foundation 4, thereby reducing the workload of water operations. The height of the top of the pile foundation extending into the cavity 3 is h1, the speed of the upper prefabricated component 1 is H, and the thickness of the upper prefabricated component 1 at the top of the cavity 3 is h2, then the thickness of the placing rib 2 is H-h1-h2; the grouting hole 5 is used to inject grouting material into the cavity 3 to form the grouting layer. It should be noted that, as in the prior art when grouting between the upper prefabricated structure and the pile foundation, a bottom mold is provided at the bottom of the upper prefabricated structure 1 to block the bottom of the cavity 3 to form the grouting layer. Since the shelf ribs 2 are arranged at intervals, the grouting material is also filled in the space between two adjacent shelf ribs 2, and enters between the outer wall of the pile foundation 4 and the inner wall of the cavity 3 through the space between two adjacent shelf ribs 2, which can effectively improve the density of the grouting layer and the grouting efficiency, and ensure the quality of the node structure.

[0019] In another technical solution, the number of grouting holes 5 is two and they are arranged close to the center of the cavity 3. The two grouting holes 5 further improve the grouting efficiency and quality.

[0020] In another technical solution, a plurality of the shelf ribs 2 are symmetrically arranged about the center of the cavity 3, and a width b of the shelf ribs 2 is smaller than a radius of the cavity 3, so that the sides of the shelf ribs 2 facing the center of the cavity 3 are not connected, and a central cavity 31 is formed in the center of the cavity 3, and the central cavity 31 is connected to the gap between two adjacent shelf ribs 2; preferably, the grouting hole 5 is arranged at the top of the central cavity 31, so that the grouting material can evenly enter the gap between two adjacent shelf ribs 2 from the central cavity 31, and then enter between the pile foundation 4 and the inner wall of the cavity 3.

[0021] In another technical solution, the horizontal cross-section of the supporting rib 2 is trapezoidal in shape, and the shorter side is close to the center of the cavity 3, and the longer side is connected to the inner wall of the cavity 3. Preferably, the longer side is an arc surface that cooperates with the inner wall of the cavity 3.

[0022] Furthermore, the width b of the resting rib 2 is greater than the distance between the inner wall of the pile foundation 4 and the inner wall of the cavity 4, so that the bottom surface of the resting rib 3 can completely cover the wall thickness t of the pile foundation 4, ensuring the stability of the upper prefabricated component 1 when it is placed on the pile foundation 4.

[0023] In another technical solution, the distance between the inner wall of the cavity 3 and the outer wall of the pile foundation 4 is 20-30 mm. The diameter of the cavity 3 should be sufficient to ensure that there is a sufficient distance between the inner wall and the outer wall of the pile foundation 4, so that the upper prefabricated component 1 can smoothly pass through the cavity 3 and be installed on the pile foundation 4 during hoisting, and the strength of the node structure can meet the requirements after grouting.

[0024] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. A support-free node structure based on the upper prefabricated components of an assembled high-pile wharf, characterized in that: include: A cavity is provided in the upper prefabricated component, wherein the cavity is formed by the bottom surface of the upper prefabricated component being concave upward; The cavity is cylindrical, and its diameter is larger than the outer diameter of the pile foundation, so that the top of the pile foundation can extend into the cavity; a plurality of resting ribs are arranged at intervals on the inner wall of the cavity, and the height of the resting ribs is smaller than the height of the cavity, so that after the pile foundation extends into the cavity, the top surface of the pile foundation abuts against the bottom surface of each resting rib; a grouting hole is opened on the top of the upper prefabricated component, and the grouting hole is connected to the cavity; the cavity is filled with a grouting layer, and the grouting layer connects the upper prefabricated component and the pile foundation as a whole.

2. The support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to claim 1 is characterized in that: The number of the grouting holes is two and they are arranged close to the center of the cavity.

3. The support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to claim 1 is characterized in that: The plurality of resting ribs are symmetrically arranged about the center of the cavity, and the width of the resting ribs is smaller than the radius of the cavity.

4. The support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to claim 3 is characterized in that: The horizontal cross section of the resting rib is trapezoidal in shape, and the shorter side is close to the center of the cavity.

5. The support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to claim 4 is characterized in that: The width of the resting rib is greater than the distance between the inner wall of the pile foundation and the inner wall of the cavity.

6. The support-free node structure based on the upper prefabricated components of the assembled high-pile wharf according to claim 1 is characterized in that: The distance between the inner wall of the cavity and the outer wall of the pile foundation is 20 to 30 mm.

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