Connecting device for bearing platform and tubular pile

Abstract

The invention discloses a connecting device for a bearing platform and a tubular pile, the tubular pile is connected with the bearing platform, the connecting device comprises a connecting mechanism, the connecting mechanism and the tubular pile are preformed, the connecting mechanism comprises a connecting sleeve and an end plate, the connecting sleeve is fixed at the end of the tubular pile, the end plate is fixed on the connecting sleeve, and the end plate is fixed on the connecting sleeve. The bearing platform is characterized in that a bolt sleeve is connected to the end plate, a convex strip is arranged in the bolt sleeve, a clamping block is arranged on the connecting reinforcing steel bar, a reinforcing steel bar frame is bound through the connecting reinforcing steel bar, the reinforcing steel bar frame is poured through concrete, and the bearing platform is formed after the concrete is dried, solidified and formed. According to the connecting device between the bearing platform and the pipe pile, the connecting mode between the bearing platform and the pipe pile is connected with pile core connection and welding connection, and compared with the connecting device between the bearing platform and the pipe pile, the mechanical connecting structure is safer, short in construction period, low in manufacturing cost and suitable for construction.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a device for connecting a cap and a pipe pile. Background Art

[0002] In the field of building construction technology, pipe piles and caps are often used in the field of construction technology. The pipe piles are cast in the foundation, and steel bars are installed on the pipe piles. The steel bar frame structure of the cap is formed by tying the steel bars, and the cap structure is formed by pouring concrete.

[0003] The existing connection methods between the cap and the pipe pile include the following.

[0004] Pile core connection: pour micro-expansion concrete through the pile core steel cage under the concrete pipe pile, and connect and anchor it with the cap through the pile core steel bars; welding connection: weld the anchor steel bars to the concrete pipe pile end plate, and connect it with the cap through the anchor steel bars.

[0005] The above connection methods in the prior art have the following defects: the disadvantages of the pile core connection include: before pouring the pile core concrete, the inner wall of the pile core needs to be brushed with clean slurry, the pile core is in the shape of a round tube and is long, and the construction is difficult; the pile core concrete uses micro-expansion concrete, and admixtures need to be added. The amount of admixtures is not easy to control, and excessive amounts may become shrinkage concrete, affecting the construction quality; there are certain requirements for temperature during construction, especially in the Northeast region, where construction is difficult in winter and insulation measures need to be taken; there are many construction processes such as pouring concrete, making steel cages, vibrating, and curing, the construction period is long, and the cost is high. The disadvantages of the welding connection include: the welding process requires high technology and requires professional technicians to operate; the connection plate and the pile foundation end plate, the connection plate and the anchor steel bar all need to be fully welded, and 100% non-destructive testing is required after welding, the construction period is long, the cost is high, and the structural safety is poor.

[0006] Especially in wind farm projects, the project scale is large and the number of pile foundations is large. The above connection methods are inconvenient to install and are not suitable for connecting the pedestal and the pipe piles. Summary of the invention

[0007] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0008] In order to solve the problem of inconvenient connection between pipe piles and caps in the prior art, the present invention adopts the following technical solution.

[0009] A device for connecting a pedestal and a pipe pile is used to connect the pipe pile and the pedestal. The device comprises a connecting mechanism. The connecting mechanism and the pipe pile are prefabricated. The connecting mechanism comprises a connecting sleeve and an end plate. The connecting sleeve is fixed to the end of the pipe pile, and the end plate is fixed to the connecting sleeve. Connecting steel bars are clamped on the end plate. A steel bar frame is tied by connecting the steel bars. The steel bar frame is poured with concrete. After the concrete is dried and solidified, the pedestal is formed.

[0010] Preferably, in the above-mentioned device for connecting the pedestal and the pipe pile, the pipe pile includes a concrete column, which is prefabricated by pouring concrete, the end of the concrete column is fixedly installed with an anchor steel bar, the connecting sleeve is fixedly installed on the end of the concrete column, an anchor hole is opened on the end plate, and an anchor steel bar is fixedly installed on the concrete column, and the anchor steel bar is anchored in the anchor hole so that the end plate is fixed to the end of the pipe pile.

[0011] Preferably, in the above-mentioned device for connecting the pedestal and the pipe pile, a through hole is opened on the end plate, and a bolt sleeve is connected to the side of the end plate close to the pipe pile, the bolt sleeve is connected to the through hole, and the connecting steel bar is clamped in the bolt sleeve.

[0012] Preferably, in the above-mentioned device for connecting the pedestal and the pipe pile, the bolt sleeve is a hollow structure with an opening at the top, and convex strips are distributed on the inner wall of the bolt sleeve, sliding grooves are formed between the convex strips, and a clamping groove is provided at the bottom of the convex strips. A clamping block is fixedly installed on the side wall of the end of the connecting steel bar, and the clamping block is clamped in the bolt sleeve and cooperates with the clamping groove on the convex strip to fix the connecting steel bar on the end plate.

[0013] Preferably, in the above-mentioned device for connecting the pedestal and the pipe pile, the end of the connecting steel bar is inserted into the bolt sleeve, and the clamping block at the end of the connecting steel bar slides in the slide groove. After the clamping block slides to the bottom of the slide groove, the connecting steel bar is rotated so that the clamping block abuts against the clamping groove of the convex strip, thereby fixing the connecting steel bar on the end plate.

[0014] Preferably, in the above-mentioned device for connecting the pedestal and the pipe pile, a buffer cavity and a fixed cavity are provided in the bolt sleeve, the convex strips are distributed on the inner wall of the fixed cavity, and a spring and a gasket are installed in the buffer cavity, one end of the spring is installed on the bottom wall of the fixed cavity, and the other end is connected to the gasket, when the clamping block at the end of the connecting steel bar moves along the slide groove into the buffer cavity, the gasket moves downward to compress the spring, and the connecting steel bar is rotated so that the clamping block is clamped and fixed with the clamping groove of the convex strip.

[0015] Preferably, in the above-mentioned device for connecting a cap and a pipe pile, the bolt sleeve is also provided with a rubber protective cap, which passes through the through hole on the end plate and covers the end of the bolt sleeve to seal the bolt sleeve.

[0016] Preferably, in the above-mentioned device for connecting abutments and pipe piles, the connecting steel bars are in a bent state, and the bending angle of the connecting steel bars is 75°.

[0017] Preferably, in the above-mentioned device for connecting a cap and a pipe pile, an anti-rust and anti-corrosion gel is injected into the bolt sleeve, and the anti-rust and anti-corrosion gel prevents the bolt sleeve and the connecting steel bars from rusting.

[0018] Preferably, in the above-mentioned device for connecting a cap and a pipe pile, the height of the bolt sleeve is 60 mm, the thickness of the gasket is 5 mm, the inner diameter of the buffer cavity is 30 mm, and the outer diameter of the bolt sleeve is 38 mm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, the connection method between the cap and the pipe pile by the connection device between the cap and the pipe pile is compared with the pile core connection and the welding connection. The mechanical connection structure in the present invention is safer, has a short construction period, low cost, and is easy to construct. Specifically:

[0021] Safety: In this embodiment, the connecting sleeve is pre-buried in the prefabrication plant, which greatly ensures the construction accuracy and quality and can ensure the safety of the structure.

[0022] Short construction period: The mechanical connection in this embodiment is very quick to operate. The construction personnel only need 1 minute to complete the entire pipe pile operation, and only tens of minutes to complete the connection between the entire cap and the pipe pile.

[0023] Low cost: The connecting device in this embodiment has a low cost and is economical. The connecting device in this embodiment costs about 2 yuan per piece, which greatly reduces the cost and improves the economic benefit.

[0024] Convenient construction: The connection device in this embodiment can realize the installation of pipe piles and caps without complicated construction procedures such as pouring, vibrating, welding, and maintenance and the guidance of professional technicians, which ensures the installation effect and improves the installation efficiency. The connection device in this embodiment adopts mechanical connection, which can significantly improve the structural safety, greatly shorten the construction period, and is very economical and convenient to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an assembly effect diagram of the pipe pile and the cap in the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the pipe pile in the present invention;

[0027] Figure 3 It is a schematic diagram of the split structure of the pipe pile in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the end of the pipe pile in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the connecting mechanism in the present invention;

[0030] Figure 6 It is a schematic diagram of the split structure of the connecting mechanism in the present invention;

[0031] Figure 7 It is a schematic diagram of the split structure of the end plate and the steel bar in the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of connecting steel bars in the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the terminal plate in the present invention;

[0034] Fig.10 It is a structural schematic diagram of the bolt sleeve in the present invention;

[0035] Fig.11 is a cross-sectional view of the bolt sleeve in the present invention;

[0036] Fig.12 for Fig.11 A front view of

[0037] Fig.13 for Fig.10 A top view of

[0038] Fig.14 It is a schematic diagram of the assembly of the bolt sleeve and the rubber protective cap in the present invention.

[0039] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0040] 100, pipe pile; 200, cap; 300, connection mechanism;

[0041] 101. Concrete column; 102. Anchor steel bar;

[0042] 301, connecting sleeve; 302, end plate; 303, connecting steel bar; 304, bolt sleeve; 305, rubber protective cap;

[0043] 302a, anchor hole; 303a, steel bar body; 303b, clamping block; 304a, buffer cavity; 304b, fixing cavity; 304c, gasket; 304d, slide groove; 304e, clamping groove. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0047] like Figure 1 As shown, it is a rendering of the connection between the pipe pile 100 and the pedestal 200 in this embodiment. In this embodiment, steel bars are installed on the top of the pipe pile 100, and a steel bar frame is tied with the steel bars. Concrete is poured into the steel bar frame, and the pedestal 200 is formed after the concrete is dried.

[0048] like Figure 2 as well as Figure 3 As shown, it is a schematic diagram of the structure of the pipe pile 100 in this embodiment, and a schematic diagram of the assembly structure of the pipe pile 100 and the connecting mechanism 300 in this embodiment. It is worth noting that the pipe pile 100 and the connecting mechanism 300 in this embodiment are prefabricated parts, which can be directly prefabricated in the factory to form the pipe pile 100 and the connecting mechanism 300. Through the prefabrication of the connecting mechanism 300 and the pipe pile 100, the operation time at the construction site can be greatly shortened, thereby ensuring the efficiency of the engineering operation.

[0049] like Figure 2 as well as Figure 3 As shown, the pipe pile 100 in this embodiment includes a concrete column 101, which is prefabricated with concrete, and a connecting mechanism 300 is installed at the end of the pipe pile 100. Figure 5 as well as Figure 6 As shown, the connecting mechanism 300 in this embodiment includes a connecting sleeve 301 and an end plate 302. In this embodiment, the connecting sleeve 301 is sleeved on the end of the concrete column 101 and is integrally formed with the concrete column 101 to form the pipe pile 100 in this embodiment. The end plate 302 is fixedly welded to the connecting sleeve 301, thereby forming a prefabricated part of the pipe pile 100 and the connecting mechanism 300.

[0050] In this embodiment, Figure 4As shown, the end of the pipe pile 100 in this embodiment is provided with an anchoring steel bar 102, and an anchoring hole 302a is opened on the end plate 302. When the end plate 302 is fixed to the end of the connecting sleeve 301, the anchoring steel bar 102 is anchored in the anchoring hole 302a, so that the end plate 302, the connecting sleeve 301 and the concrete column 101 can be fixedly connected, thereby ensuring the stability of the pipe pile 100.

[0051] In this embodiment, as shown in Figure 7, a through hole is opened on the end plate 302 in this embodiment, and a bolt sleeve 304 is integrally formed and installed on the lower surface of the end plate 302. A connecting steel bar 303 is detachably installed on the end plate 302 in this embodiment, and the connecting steel bar 303 is installed on the end plate 302. In this embodiment, the connecting steel bar 303 extends to the outside of the end plate 302. After the end plate 302 is fixed on the connecting sleeve 301, the connecting steel bar 303 extends to the outside of the pipe pile 100. When the base 200 is manufactured, the steel bar frame is tied by the connecting steel bar 303, and the base 200 is formed by pouring the steel bar frame and waiting for the concrete to dry.

[0052] In this embodiment, in order to improve the connection efficiency between the connecting steel bar 303 and the end plate 302, the end of the connecting steel bar 303 in this embodiment is inserted into the bolt sleeve 304 through the through hole of the end plate 302. On the one hand, the connecting steel bar 303 can be clamped in the bolt sleeve 304, and on the other hand, the clamping effect of the bolt sleeve 304 ensures the firmness of the connecting steel bar 303.

[0053] like Figures 9 to 13 As shown, in this embodiment, the bolt sleeve 304 is open at the top and closed at the bottom, and two chambers are arranged in the bolt sleeve 304, which are a buffer cavity 304a and a fixed cavity 304b from bottom to top. In this embodiment, convex strips are distributed on the inner wall of the fixed cavity 304b, and a slide groove 304d is formed between the convex strips, and a card groove 304e is opened below the convex strips. In this embodiment, a spring is built in the buffer cavity 304a, and a gasket 304c is arranged in the buffer cavity 304a above the spring. The gasket 304c can move downward in the buffer cavity 304a to compress the spring. In this embodiment, as shown in FIG. Figure 8As shown, the connecting steel bar 303 includes a steel bar body 303a, one end of which is fixedly connected with a clamping block 303b, the clamping block 303b is annularly distributed on the end side wall of the steel bar body 303a, and the sliding groove 304d in the bolt sleeve 304 is annularly distributed on the inner wall of the fixed cavity 304b. In this embodiment, when the end of the steel bar body 303a is inserted into the through hole, the clamping block 303b slides in the sliding groove 304b until the end of the steel bar body 303a abuts against the gasket 304c, and the steel bar body 303a moves downward to drive the gasket 304c to move downward to compress the spring, and the steel bar body 303a is rotated so that the clamping block 303b is clamped in the clamping groove 304e of the convex strip on the inner wall of the fixed cavity 304b, so that the clamping block 303b and the clamping groove 304e cooperate with each other to fix the connecting steel bar 303 on the end plate 302.

[0054] In this embodiment, the connecting steel bar 303 is in a bent state, and the bending angle of the steel bar body 303a is 75°. In addition, the height of the bolt sleeve 304 in this embodiment is 60 mm, the thickness of the gasket 304c is 5 mm, the inner diameter of the buffer cavity 304a is 30 mm, and the outer diameter of the bolt sleeve 304 is 38 mm. In this embodiment, the connecting steel bar 303 is clamped on the bolt sleeve 304 in the end plate 302, so that the connecting steel bar 303 can be quickly connected to the end plate 302, thereby improving the efficiency of the construction operation, greatly shortening the construction time, and ensuring the construction effect.

[0055] In addition, it should be noted that the bolt sleeve 304 in this embodiment is injected with anti-rust and anti-corrosion gel, which prevents the bolt sleeve 304 and the connecting steel bars 303 from rusting, ensures the rigidity of the end plate 302 and the connecting steel bars 303, and thus improves the stability of the assembly between the pipe pile 100 and the base 200.

[0056] In addition, in this embodiment, since the end plate 302, the connecting sleeve 301 and the concrete column 101 are all prefabricated parts, in order to avoid the problem of the bolt sleeve 304 entering the concrete and causing blockage during prefabrication, in this embodiment, Fig.14 As shown, the bolt sleeve 304 is also equipped with a rubber protective cap 305. The rubber protective cap 305 passes through the through hole on the end plate 302 and covers the end of the bolt sleeve 304 to seal the bolt sleeve 304, thereby avoiding the problem of concrete entering the bolt sleeve 304 and causing the bolt sleeve 304 to be blocked during prefabrication.

[0057] It is worth noting that in this embodiment, after the end of the connecting steel bar 303 enters the bolt sleeve 304, the connecting steel bar 303 rotates 30°, so that the clamping block 303b on the connecting steel bar 303 and the clamping groove 304e on the convex strip are mutually engaged, thereby improving the stability of the connecting steel bar 303 and the end plate 302. Thus, the firm assembly between the pipe pile 100 and the cap 200 is achieved, and the stability of the cap 200 is guaranteed.

[0058] In this embodiment, the connection device between the cap 200 and the pipe pile 100 connects the cap 200 and the pipe pile 100. Compared with the pile core connection and welding connection, the mechanical connection structure in this embodiment is safer, has a short construction period, low cost, and is easy to construct. Specifically:

[0059] Safety: In this embodiment, the connecting sleeve 301 is pre-buried in the prefabrication plant, which greatly ensures the construction accuracy and quality and can ensure the safety of the structure.

[0060] Short construction period: The mechanical connection in this embodiment is very quick to operate. The construction personnel only need 1 minute to complete the operation of the entire pipe pile 100, and only tens of minutes to complete the connection between the entire cap 200 and the pipe pile 100.

[0061] Low cost: The connecting device in this embodiment has a low cost and is economical. The connecting device in this embodiment costs about 2 yuan per piece, which greatly reduces the cost and improves the economic benefit.

[0062] Convenient construction: The connection device in this embodiment can realize the installation of the pipe pile 100 and the cap 200 without complicated construction procedures such as pouring, vibrating, welding, and maintenance and the guidance of professional technicians, thereby ensuring the installation effect and improving the installation efficiency. After the connection device in this embodiment adopts mechanical connection, it can significantly improve the structural safety, greatly shorten the construction period, and is very economical in cost and very convenient in construction.

[0063] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for connecting a cap and a pipe pile, for connecting a pipe pile (100) and a cap (200), the device comprising a connecting mechanism (300), the connecting mechanism (300) and the pipe pile (100) being preformed, characterized in that: The connection mechanism (300) comprises a connection sleeve (301) and an end plate (302). The connection sleeve (301) is fixed to the end of the pipe pile (100), and the end plate (302) is fixed to the connection sleeve (301). A connection steel bar (303) is clamped on the end plate (302). The steel bar frame is tied by the connection steel bar (303), and the steel bar frame is poured with concrete. After the concrete is dried and solidified, the cap (200) is formed.

2. The device for connecting a cap and a pipe pile according to claim 1, characterized in that: The pipe pile (100) comprises a concrete column (101), the concrete column (101) is prefabricated by concrete pouring, an anchoring steel bar (102) is fixedly installed at the end of the concrete column (101), a connecting sleeve (301) is fixedly installed at the end of the concrete column (101), an anchoring hole (302a) is opened on the end plate (302), an anchoring steel bar (102) is fixedly installed on the concrete column (101), and the anchoring steel bar (102) is anchored in the anchoring hole (302a) so that the end plate (302) is fixed to the end of the pipe pile (100).

3. The device for connecting a cap and a pipe pile according to claim 2, characterized in that: The end plate (302) is provided with a through hole, and a bolt sleeve (304) is connected to the side of the end plate (302) close to the pipe pile (100), the bolt sleeve (304) is connected to the through hole, and the connecting steel bar (303) is clamped in the bolt sleeve (304).

4. The device for connecting a cap and a pipe pile according to claim 3, characterized in that: The bolt sleeve (304) is a hollow structure with an opening at the top, and convex strips are distributed on the inner wall of the bolt sleeve (304), and a sliding groove (304d) is formed between the convex strips. A clamping groove (304e) is provided at the bottom of the convex strips. A clamping block (303b) is fixedly installed on the end side wall of the connecting steel bar (303). The clamping block (303b) is clamped in the bolt sleeve (304) and cooperates with the clamping groove (304e) on the convex strip to fix the connecting steel bar (303) on the end plate (302).

5. The device for connecting a cap and a pipe pile according to claim 4, characterized in that: The end of the connecting steel bar (303) is inserted into the bolt sleeve (304), and the clamping block (303b) at the end of the connecting steel bar (303) slides in the slide groove (304d). After the clamping block (303b) slides to the bottom of the slide groove (304d), the connecting steel bar (303) is rotated so that the clamping block (303b) abuts against the clamping groove (304e) of the convex strip, thereby fixing the connecting steel bar (303) on the end plate (302).

6. The device for connecting a cap and a pipe pile according to claim 5, characterized in that: The bolt sleeve (304) is provided with a buffer cavity (304a) and a fixed cavity (304b), the convex strips are distributed on the inner wall of the fixed cavity (304b), and a spring and a gasket (304c) are installed in the buffer cavity (304a), one end of the spring is installed on the inner bottom wall of the fixed cavity (304b), and the other end is connected to the gasket (304c), when the clamping block (303b) at the end of the connecting steel bar (303) moves along the slide groove (304d) into the buffer cavity (304a), the gasket (304c) moves downward to compress the spring, and the connecting steel bar (303) is rotated so that the clamping block (303b) is clamped and fixed with the clamping groove (304e) of the convex strip.

7. The device for connecting a cap and a pipe pile according to claim 6, characterized in that: The bolt sleeve (304) is also provided with a rubber protective cap (305). The rubber protective cap (305) passes through the through hole on the end plate (302) and covers the end of the bolt sleeve (304) to seal the bolt sleeve (304).

8. The device for connecting a cap and a pipe pile according to any one of claims 1 to 7, characterized in that: The connecting steel bar (303) is in a bent state, and the bending angle of the connecting steel bar (303) is 75°.

9. The device for connecting a cap and a pipe pile according to any one of claims 3 to 7, characterized in that: The bolt sleeve (304) is injected with anti-rust and anti-corrosion gel, which prevents the bolt sleeve (304) and the connecting steel bar (303) from rusting.

10. The device for connecting a cap and a pipe pile according to any one of claims 6 to 7, characterized in that: The height of the bolt sleeve (304) is 60 mm, the thickness of the gasket (304c) is 5 mm, the inner diameter of the buffer cavity (304a) is 30 mm, and the outer diameter of the bolt sleeve (304) is 38 mm.

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