High-smoothness pipe pile for building construction
By pre-embedding multiple layers of steel mesh and designing connectors in the pipe piles, combined with tensioning and releasing operations and waterproof and anti-corrosion coatings, the structural stability problem of ordinary pipe piles under bearing capacity is solved, achieving high-strength and long-life pipe piles with high flatness in building construction.
Patent Information
- Application Number
- CN202520035495.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-08
AI Technical Summary
When ordinary pipe piles are subjected to large vertical pressure and horizontal shear force, local stress concentration is likely to occur, leading to concrete cracking and steel bar yielding, thus reducing the overall bearing capacity.
The pipe pile is constructed by embedding multiple layers of steel mesh inside a high-strength micro-expansion concrete pipe, combined with a connector design including connectors and support rings. The concrete is prestressed through tensioning and detensioning operations, and a waterproof and anti-corrosion coating is applied to the surface of the pipe pile to enhance structural stability and durability.
It significantly improves the strength and bearing capacity of pipe piles, ensures a stable connection, reduces frictional resistance, extends service life, and guarantees the stability and performance of building foundations.
Smart Images
Figure CN223675314U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of pipe pile, and particularly relates to a high flatness pipe pile for building construction. BACKGROUND
[0002] In the field of building engineering, prefabricated concrete pipe piles are widely used in various foundation treatment projects due to their high strength and fast construction. They can effectively transfer the load of the building to the deep foundation, improve the bearing capacity of the foundation, and thus ensure the stability of the building.
[0003] Ordinary pipe piles only arrange a small amount of longitudinal steel bars inside the pipe body, and the number of transverse stirrups is also limited, and prestressing technology is not used. Such a structure is prone to local stress concentration when subjected to large vertical pressure and horizontal shear force, which leads to cracking of the pipe pile concrete and yielding of the steel bars, thereby reducing the overall bearing capacity of the pipe pile. Therefore, the present patent needs to be upgraded and reformed on the basis of the prior art. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the present application provides a high flatness pipe pile for building construction, which overcomes the deficiencies of the prior art and aims to solve the problem that ordinary pipe piles only arrange a small amount of longitudinal steel bars inside the pipe body, and the number of transverse stirrups is also limited, and prestressing technology is not used. Such a structure is prone to local stress concentration when subjected to large vertical pressure and horizontal shear force, which leads to cracking of the pipe pile concrete and yielding of the steel bars, thereby reducing the overall bearing capacity of the pipe pile.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a high flatness pipe pile for building construction, comprising a pipe body, a reinforcing bar and a connecting head, characterized in that the pipe body is made of high-strength micro-expanding concrete, a multi-layer steel mesh is pre-buried inside as a reinforcing bar, and standardized connecting interfaces are provided at both ends; the connecting head is used to connect adjacent pipe piles, the connecting head comprises a connecting piece and a support ring, the connecting piece is fixedly connected to the top end of the pipe body by bolts, the support ring is fixedly connected to one side of the top of the connecting piece in a semicircular arc structure, the support ring at the top of the connecting piece is misaligned when the pipe bodies are butted, the reinforcing bar comprises column bars, outer reinforcing bars and inner reinforcing bars, the column bars are fixedly connected inside the pipe body in multiple groups according to the circumferential arrangement sequence, the outer reinforcing bars are arranged in a spiral shape outside the column bars, and the inner reinforcing bars are arranged in a reverse spiral shape inside the column bars.
[0006] By adopting the above technical solution, the column bars are tensioned when the pipe pile is prefabricated, the concrete is poured after tensioning, and the tensioning operation of the prestressed column bars is performed when the concrete reaches the required strength for demolding, so that the concrete obtains pre-compressive stress, which can significantly improve the strength and bearing capacity of the pipe pile.
[0007] As a preferred technical solution of the present application, the pipe body surface is smooth and delicate.
[0008] By adopting the above technical solution, the frictional resistance generated by contact with other objects is reduced, and the frictional resistance generated when the pipe pile contacts other objects (such as soil, construction equipment, etc.) during construction is reduced, which helps the pipe pile to be more easily positioned and sunk during driving into the soil layer, improves construction efficiency, and also reduces wear and tear on the surface of the pipe pile, prolonging the service life of the pipe pile.
[0009] As a preferred technical solution of the present application, the pipe body can be coated with a waterproof and anticorrosive coating, which should have good adhesion and durability.
[0010] By adopting the above technical solution, the pipe pile is protected from environmental factors such as water and corrosive media, and the good adhesion and durability ensure that the coating adheres firmly to the surface of the pipe pile and continues to play a waterproof and anticorrosive role during long-term use, prolonging the service life of the pipe pile and ensuring stable performance of the pipe pile under different environmental conditions.
[0011] As a preferred technical solution of the present application, the support ring is fixedly connected with a support rib inside, and the support rib is provided with a plurality of groups of equidistantly arranged support rings inside.
[0012] By adopting the above technical solution, the stability of the support ring in supporting the pipe body is enhanced by the provision of the support rib.
[0013] As a preferred technical solution of the present application, the support ring is provided with a connecting hole on the outside, and the connecting hole is provided with two groups of symmetrically arranged connecting holes on the outside of the support ring.
[0014] By adopting the above technical solution, after the adjacent pipe bodies are connected by the support ring, the support ring is fixed through the provision of the connecting hole.
[0015] As a preferred technical solution of the present application, the pipe body is fixedly connected with an upper cover at the top, and a soil-breaking layer is fixedly connected at the bottom, the soil-breaking layer comprises a soil-breaking blade and a vertebral body, the soil-breaking blade is fixedly connected below the pipe body in a conical shape, and the vertebral body is fixedly connected outside the soil-breaking blade.
[0016] By adopting the above technical solution, when the pipe pile is driven into the soil layer during construction, the conical soil-breaking blade first contacts the soil, and due to its sharp shape, it can more easily cut into the soil when subjected to pressure, reducing the resistance of the soil to the sinking of the pipe pile. During the process of cutting into the soil, the soil is pushed aside to create space for the continued sinking of the pipe pile, and its conical design allows it to more evenly disperse the resistance of the soil in different directions, enabling the pipe pile to move downward more stably.
[0017] Advantages of the present application:
[0018] 1. The structure of the pipe pile has excellent strength and stability, the pipe body is poured by high-strength micro-expansion concrete, and a plurality of layers of steel mesh are embedded as reinforcing bars, including column bars, outer reinforcing bars and inner reinforcing bars, the column bars are subjected to tensioning and tension releasing operation, so that the concrete obtains pre-compressive stress, and the load-carrying capacity of the pipe pile is significantly improved, the composite structure can effectively bear the load of the building, prevents cracks or deformation of the pipe pile, and ensures the stability of the building foundation.
[0019] 2. The unique design of the connecting head, the cooperation of the connecting piece and the supporting ring and the specific connecting mode ensure that the adjacent pipe piles are closely and stably connected, the supporting bars in the supporting ring and the connecting holes on the outer side further enhance the stability of the connection, so that the whole pipe pile structure can work cooperatively and uniformly transmit the load. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a front view structure schematic diagram of the present application;
[0021] Figure 2 is a bottom view structure schematic diagram of the present application;
[0022] Figure 3 is an explosion structure schematic diagram of the present application;
[0023] Figure 4 is a pipe body internal structure schematic diagram of the present application.
[0024] In the figure: 1, pipe body; 2, column bar; 3, connecting piece; 4, supporting ring; 5, supporting bar; 6, connecting hole; 7, upper cover; 8, soil breaking layer; 9, soil breaking blade; 10, vertebral body; 11, column bar; 12, outer reinforcing bar; 13, inner reinforcing bar. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] Reference Figures 1-4The utility model provides a kind of high flatness pipe pile of building construction, including pipe body 1, reinforcing bar and connecting head, it is characterized in that, pipe body 1 is poured by high-strength micro-expansion concrete, and multiple layers of steel mesh are embedded in the inside as reinforcing bar, and both ends are provided with standardized connecting interface;Connecting head is used to connect adjacent pipe pile, and connecting head includes connecting piece 3 and support ring 4, connecting piece 3 is fixedly connected at the top end of pipe body 1 by bolt, support ring 4 is fixedly connected at the top side of connecting piece 3 in semicircular arc structure, and when pipe body 1 is butted, support ring 4 at the top of connecting piece 3 is misaligned butt joint, and two connecting heads are fixed by bolt, to realize the connection between adjacent pipe body 1;Reinforcing bar includes column bar 2, outer layer reinforcing bar 12 and inner layer reinforcing bar 13, column bar 2 is provided with multiple groups and is fixedly connected in the inside of pipe body 1 according to circumferential arrangement order, outer layer reinforcing bar 12 is spirally arranged on the outside of column bar 2, and inner layer reinforcing bar 13 is reversely spirally arranged on the inside of column bar 2, column bar 2 is tensioned when pipe pile prefabrication is carried out, tensioning is carried out after concrete pouring, and tensioning operation of prestressed column bar 2 is carried out when concrete reaches the strength requirement of stripping, so that concrete obtains pre-compression stress, and the strength and carrying capacity of pipe pile can be significantly improved.
[0027] In the embodiment, as shown in Figure 1 Figure 4 The surface of the pipe body 1 is smooth and delicate to reduce the frictional resistance generated by contact with other objects, reduce the frictional resistance generated when the pipe pile contacts other objects such as soil, construction equipment, etc. during construction, which helps the pipe pile to be more easily positioned and sunk during driving into the soil layer, improves construction efficiency, and also reduces wear and tear on the surface of the pipe pile, prolonging the service life of the pipe pile.
[0028] In the embodiment, as shown in Figure 1 Figure 4 The outer part of the pipe body 1 can be coated with a waterproof and corrosion-resistant coating, which should have good adhesion and durability to protect the pipe pile from environmental factors such as water and corrosive media, and good adhesion and durability ensure that the coating can be firmly attached to the surface of the pipe pile and continuously play a waterproof and corrosion-resistant role during long-term use, prolonging the service life of the pipe pile and ensuring the performance stability of the pipe pile under different environmental conditions.
[0029] In the embodiment, as shown in Figure 1 Figure 4 The support ring 4 is fixedly connected with a support bar 5 inside, and the support bar 5 is provided with multiple groups of equidistantly arranged inside the support ring 4, and the stability of the support ring 4 in supporting the pipe body is enhanced by the arrangement of the support bar 5.
[0030] In the embodiment, as shown in Figure 1 Figure 4 As shown, the outer side of the support ring 4 is provided with a connecting hole 6, the connecting hole 6 is provided with two groups of symmetrically arranged positions on the outer side of the support ring 4, after the support ring 4 is connected between the adjacent pipe bodies 1, the support ring 4 is fixed through the connecting hole 6.
[0031] In this embodiment, as shown in the drawings, Figure 1 - Figure 4 As shown, the top of the pipe body 1 is fixedly connected with an upper cover 7, and the bottom of the pipe body 1 is fixedly connected with a soil breaking layer 8, the soil breaking layer 8 includes a soil breaking blade 9 and a cone body 10, the soil breaking blade 9 is fixedly connected below the pipe body 1 in a conical shape, and the cone body 10 is fixedly connected outside the soil breaking blade 9, when the pipe pile is driven into the soil layer during construction, the conical soil breaking blade 9 first contacts the soil, due to its sharp shape, it can more easily cut into the soil when subjected to pressure, reducing the resistance of the soil to the sinking of the pipe pile, the soil breaking blade 9 will push the soil to both sides during cutting into the soil, creating space for the continued sinking of the pipe pile, its conical design allows it to more evenly disperse the resistance of the soil in different directions, allowing the pipe pile to move downward more stably.
[0032] Working principle: arrange multiple layers of steel mesh in the mold according to design requirements, among which the column reinforcement 2 is fixedly connected to the corresponding position inside the mold in a circumferential arrangement order, the outer reinforcing bar 12 is spirally wound outside the column reinforcement 2, and the inner reinforcing bar 13 is reversely spirally wound inside the column reinforcement 2, during the arrangement process, ensure the accurate position of the steel reinforcement, and use appropriate binding or welding method for fixation to prevent displacement of the steel reinforcement during concrete pouring, before pouring the concrete, perform tensioning operation on the column reinforcement 2, inject the high-strength micro-expanding concrete slurry mixed uniformly with an appropriate amount of additive into the mold cavity, during pouring, use layered pouring method, control the pouring thickness of each layer within a certain range, at the same time, use a vibrating rod to vibrate and compact the concrete, ensure that there is no gap inside the concrete, avoid direct contact between the vibrating rod and the steel reinforcement during vibration to prevent displacement of the steel reinforcement, when the concrete reaches the required strength for demolding, perform tension release operation on the prestressed column reinforcement 2, remove the bolts in the bolt hole of the tensioning end connecting joint, and remove the tensioning end connecting joint, so that the prestress of the column reinforcement 2 is released, and the concrete obtains pre-compressive stress, during the tension release process, slowly and uniformly release the prestress to avoid cracks and other problems in the concrete due to sudden stress changes, fix the connecting piece 3 to the top end of the pipe body 1 through bolts, when the adjacent pipe bodies 1 are butt jointed, the support ring 4 on the top of the connecting piece 3 is misaligned and butt jointed, so that the support ring 4 is attached to the other side of the connecting piece 3, then the two connecting heads are fixed through bolts, realizing the connection between the adjacent pipe bodies 1.
[0033] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application is described in detail with reference to the foregoing embodiments, modifications to the foregoing embodiments or equivalent replacements to some technical features thereof can be made by those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A type of high-flatness pipe pile for building construction, comprising a pipe body (1), reinforcing bars, and connectors, characterized in that, The pipe body (1) is made of high-strength micro-expansion concrete, with multiple layers of steel mesh embedded inside as reinforcing bars, and standardized connection interfaces at both ends. The connector is used to connect adjacent pipe piles. The connector includes a connector (3) and a support ring (4). The connector (3) is fixedly connected to the top of the pipe body (1) by bolts. The support ring (4) is fixedly connected to one side of the top of the connector (3) in a semi-circular arc structure. When the pipe bodies (1) are connected, the support ring (4) at the top of the connector (3) is misaligned and connected. The reinforcing ribs include column ribs (2), outer reinforcing ribs (12) and inner reinforcing ribs (13). The column ribs (2) are provided with multiple sets of circumferentially arranged and fixedly connected inside the tube body (1). The outer reinforcing ribs (12) are spirally arranged on the outside of the column ribs (2), and the inner reinforcing ribs (13) are spirally arranged in the opposite direction on the inside of the column ribs (2).
2. The high-flatness pipe pile for building construction according to claim 1, characterized in that, The surface of the tube (1) is smooth and delicate.
3. The high-flatness pipe pile for building construction according to claim 1, characterized in that, The outside of the pipe body (1) can be coated with a waterproof and anti-corrosion coating, which has good adhesion and durability.
4. The high-flatness pipe pile for building construction according to claim 1, characterized in that, The support ring (4) is fixedly connected to the support rib (5), and the support rib (5) is provided with multiple sets of equidistantly arranged inside the support ring (4).
5. A high-flatness pipe pile for building construction according to claim 1, characterized in that, The support ring (4) has a connecting hole (6) on its outer side. The connecting hole (6) has two sets symmetrically arranged on the outer side of the support ring (4).
6. A high-flatness pipe pile for building construction according to claim 1, characterized in that, The top of the tube (1) is fixedly connected to a cover (7), and the bottom of the tube (1) is fixedly connected to a soil-breaking layer (8). The soil-breaking layer (8) includes a soil-breaking blade (9) and a cone (10). The soil-breaking blade (9) is fixedly connected to the bottom of the tube (1) in a conical shape, and the cone (10) is fixedly connected to the outside of the soil-breaking blade (9).