Precast pile with reserved anchoring rib mounting structure
By designing the enlarged head and reserved sink on the prefabricated pile to install the stressed main ribs and equipped with a removable cover plate, the problems of anchor ribs are solved, the load-bearing capacity and stability of the prefabricated piles are improved, and the construction process is simplified.
Patent Information
- Application Number
- CN202421580131.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The existing prefabricated piles are likely to cause the anchoring ribs to be exposed in the anchoring ribs, and the later implantation method is likely to damage the anchoring ribs, affecting the load-bearing capacity and stability of the prefabricated piles.
A prefabricated pile with reserved anchor rib installation structure is designed, the expansion head is used to increase the contact area, the main ribs are installed through the reserved sink groove, and a removable cover plate is equipped to cover the sink groove, protect the anchor ribs and simplify the connection operation.
It improves the load-bearing capacity and stability of prefabricated piles, avoids damage to anchor ribs during construction, simplifies the construction process, and improves the applicability and flexibility of prefabricated piles.
Smart Images
Figure CN222771455U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of prefabricated pile preparation technology, and in particular to a prefabricated pile with a reserved anchor bar installation structure. Background Art
[0002] Precast piles are widely used in construction projects due to their convenient construction and controllable quality. The steel bars in reinforced concrete structures can bear stress mainly by the bonding and anchoring between the steel bars and concrete. The anchor bars can ensure the effective connection between the steel bars and concrete, so that the tensile force of the steel bars can be effectively transferred to the concrete, thus jointly bearing the load of the structure. Therefore, the anchoring of the steel bars is the basis for the stress of the concrete structure.
[0003] In the prior art, the anchor bars of precast piles are usually arranged by later implantation. However, the later implantation of anchor bars can easily cause the anchor bars in the precast piles to be exposed at the top of the precast piles. When the precast piles are applied to the construction site, the top of the precast piles are usually hammered with a hammer. However, the hammering method can easily cause the anchor bars exposed at the top of the precast piles to be damaged, thereby affecting the bearing capacity and stability of the precast piles. Utility Model Content
[0004] In order to improve the stability of precast piles when applied to construction sites, the present application provides a precast pile with a reserved anchor bar installation structure.
[0005] The present application provides a prefabricated pile with a reserved anchor bar installation structure, which adopts the following technical solution:
[0006] A prefabricated pile with a reserved anchor bar installation structure comprises a pile body, an enlarged head is coaxially arranged on the top of the pile body, a main stress-bearing reinforcement is pre-embedded in the middle of the top of the pile body, a sink groove for connecting the main stress-bearing reinforcement is reserved in the middle of the top of the enlarged head, and a cover plate for covering the sink groove is arranged on the top of the enlarged head, and the cover plate is detachably arranged on the top of the pile body.
[0007] By adopting the above technical solution, the enlarged head increases the contact area between the precast pile and the soil, thereby improving the bearing capacity of the precast pile, especially on soft foundations, which can more effectively disperse the load on the top of the pile and reduce the stress per unit area; for sites with uneven geological conditions, the enlarged head can better adapt to the soil in different layers and provide more reliable support. The top of the enlarged head is used to install the main reinforcement through the reserved sinking groove, which effectively avoids the damage of the anchoring reinforcement during the construction of the precast pile. At the same time, a removable cover plate is equipped to cover the sinking groove, which not only protects the main reinforcement in the sinking groove, but also facilitates the connection operation of the main reinforcement in the later stage. This structure significantly improves the bearing capacity and stability of the precast pile, while simplifying the construction process.
[0008] Optionally, the enlarged head can be set to a circular, square or polygonal shape as required and be surrounded by reinforced concrete. Its size and shape can be adjusted according to geological conditions and load-bearing requirements.
[0009] By adopting the above technical solution, different geological conditions (such as sand, clay, and gravel soil) may require enlarged heads of different shapes and sizes to optimize the embedment and bearing performance. Casting and customizing the enlarged heads of precast piles according to actual needs can enable precast piles to better adapt to different geological environments and bearing requirements, thereby improving the applicability and flexibility of precast piles.
[0010] Optionally, an abutment groove is coaxially provided on the top of the enlarged head and connected to the sink groove, the cover plate is located in the abutment groove and completely covers the sink groove, and the cover plate is plug-fitted with the abutment groove.
[0011] By adopting the above technical solution, the cover plate is inserted into the abutment groove. At this time, since the abutment groove provides supporting force for the cover plate, during the pile sinking process, when the hammer hits the top of the precast pile, the hammer falls on the cover plate and the top of the enlarged head, and the hammering force on the cover plate is transmitted to the bottom of the abutment groove and dispersed to the whole precast pile. Not only does the cover plate completely cover the main reinforcement to protect the main reinforcement in the sinking groove, but it can also effectively protect the internal main reinforcement from damage during earth excavation, thereby ensuring the bearing capacity and stability of the precast pile.
[0012] Optionally, a limiting ring groove is coaxially provided on the inner ring side wall of the abutment groove near the bottom, a limiting block is arranged in the limiting ring groove, the limiting block is arranged on the cover plate, and an insertion interface connected to the limiting ring groove is provided on the corresponding limiting block on the top wall of the enlarged head, and the limiting block and the limiting ring groove are coaxially rotated together.
[0013] By adopting the above technical solution, the limit block on the cover plate is aligned with the plug interface and inserted into the limit ring groove from top to bottom. At this time, the cover plate abuts against the abutment groove, and the limit block is located in the limit ring groove; then the cover plate is rotated to make the limit block overcome the friction force and rotate to a position away from the plug interface, and be limited in the limit ring groove, so as to prevent the cover plate from falling off during transportation, and reduce the possibility of the cover plate rotating or shifting during the pile sinking process, thereby improving the stability of the precast pile during installation at the construction site; and when it is necessary to connect with the base, it is only necessary to overcome the friction force and rotate the limit block to the plug interface, so that the cover plate can be taken out, so as to be installed and connected with the base.
[0014] Optionally, a reinforcement ring is provided at the bottom of the cover plate corresponding to the inner wall of the mounting groove, and when the cover plate is inserted into the abutment groove, the reinforcement ring is fitted against the inner wall of the mounting groove.
[0015] By adopting the above technical solution, when the cover plate is inserted into the abutment groove, the reinforcement ring is fitted against the inner wall of the installation groove. The setting of the reinforcement ring enhances the structural strength of the installation between the cover plate and the groove, prevents deformation or damage of the cover plate due to external force, and further extends the service life of the cover plate.
[0016] Optionally, the cover plate is provided with a groove at the top away from the reinforcement ring, and an invisible handle is provided in the groove.
[0017] By adopting the above technical solution, the non-protruding setting of the invisible handle allows the hammer to not be disturbed by the handle when hammering the top of the precast pile, but provides convenience for holding and operating the cover plate, thereby improving construction efficiency.
[0018] Optionally, a connecting bar is pre-buried corresponding to the main stress-bearing bar on each precast pile at the bottom of the base, the connecting bar is inserted into the sink groove, and a connecting piece is arranged between the connecting bar and the main stress-bearing bar, so that a fastening connection between the connecting bar and the main stress-bearing bar is achieved through the connecting piece.
[0019] By adopting the above technical solution, the connecting reinforcement is inserted into the sink groove, so that the bottom of the pedestal fits the top wall of the enlarged head and is fitted with the foundation, the stability of the pedestal can be improved, and the firm connection between the pedestal and the precast piles is ensured by the connecting parts, thereby improving the stability of the overall structure.
[0020] Optionally, the connecting rib is coaxially arranged with the main stress-bearing rib located in the sink groove, and the outer periphery of the opposite end is provided with the same direction thread, and the connecting piece is a threaded sleeve, and the threaded sleeve is jointly sleeved on the threaded sections of the main stress-bearing rib and the connecting rib through threads.
[0021] By adopting the above technical solution, a threaded sleeve is used as a connecting piece, and the threaded sleeve can be used to accurately adjust the prefabricated pile and the anchor bar of the cap, so as to avoid the steel bar joint limiting the ductility of the steel bar, simplify the connection operation, and ensure the close cooperation between the connecting bar and the main force bar, so as to further improve the stability of the overall structure.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The enlarged head increases the contact area between the precast pile and the soil, thereby improving the bearing capacity of the precast pile, especially on soft foundations. It can more effectively disperse the load on the top of the pile and reduce the stress per unit area. For sites with uneven geological conditions, the enlarged head can better adapt to the soil in different layers and provide more reliable support. The top of the enlarged head is used to install the main reinforcement through the reserved sinking groove, which effectively avoids the damage of the anchoring reinforcement during the construction of the precast pile. At the same time, a removable cover plate is equipped to cover the sinking groove, which not only protects the main reinforcement in the sinking groove, but also facilitates the connection operation of the main reinforcement in the later stage. This structure significantly improves the bearing capacity and stability of the precast pile, while simplifying the construction process;
[0024] 2. Different geological conditions (such as sand, clay, and gravel soil) may require enlarged heads of different shapes and sizes to optimize the embedding and bearing performance. Casting and customizing the enlarged heads of precast piles according to actual needs can make the precast piles better adapt to different geological environments and bearing requirements, thereby improving the applicability and flexibility of precast piles;
[0025] 3. The cover plate is inserted into the abutment groove. At this time, since the abutment groove provides supporting force for the cover plate, during the pile sinking process, when the hammer hits the top of the precast pile, the hammer's impact falls on the cover plate and the top of the enlarged head. The hammering force on the cover plate is transmitted to the bottom of the abutment groove and dispersed to the whole precast pile. Not only does the cover plate completely cover the main reinforcement to protect the main reinforcement in the sinking groove, but it can also effectively protect the internal main reinforcement from damage during earth excavation, thereby ensuring the bearing capacity and stability of the precast pile. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0027] Figure 2 It is a cross-sectional view of the overall structure of an embodiment of the present application.
[0028] Figure 3 It is a cross-sectional view of the overall structure during actual construction and installation between the embodiment of the present application and the base.
[0029] Figure 4 It is an exploded view showing the connection relationship between the upper limit block of the cover plate and the upper limit ring of the enlarged head in the embodiment of the present application.
[0030] Description of reference numerals:
[0031] 1. Pile body; 11. Main force-bearing reinforcement; 2. Enlarged head; 21. Sinking groove; 22. Abutment groove; 23. Limiting ring groove; 24. Plug interface; 3. Cover plate; 31. Limiting block; 32. Reinforcement ring; 33. Groove; 331. Handle; 4. Cap; 41. Connecting reinforcement; 5. Connector; 51. Threaded sleeve. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] The embodiment of the present application discloses a prefabricated pile with a reserved anchor bar installation structure.
[0034] Reference Figure 1 and Figure 2 A prefabricated pile with a reserved anchor bar installation structure includes a pile body 1, and an enlarged head 2 is coaxially arranged on the top of the pile body 1. The enlarged head 2 can be set to a circular, square or polygonal shape as required. The enlarged head 2 in this embodiment is set to a circular shape, and the pile body 1 and the enlarged head 2 are surrounded by reinforced concrete. A main reinforcement 11 is embedded in the middle of the top of the pile body 1, and a sinking groove 21 for connecting the main reinforcement 11 is reserved in the middle of the top of the enlarged head 2. The outer periphery of the part of the main reinforcement 11 located in the sinking groove 21 is opened and threaded, and a cover plate 3 is detachably arranged on the top of the enlarged head 2 to cover the sinking groove 21.
[0035] Reference Figure 1 , Figure 2 and Figure 3 , install the cover plate 3 on the top of the enlarged head 2, insert the pile body 1 vertically into the ground, and use a hammer to hammer the cover plate 3 and the top of the enlarged head 2, so that the precast pile is completely inserted into the ground vertically, and then take out the cover plate 3; the precast columns made in the same way are distributed and piled in batches on the construction land, and the cap 4 is covered on the top of several precast columns. A connecting rib 41 is pre-buried at the bottom of the cap 4 corresponding to the main reinforcement 11 on each precast pile, and the connecting rib 41 is inserted into the sinking groove 21, corresponding to the main reinforcement 11 located in the sinking groove 21 one by one, and the fastening connection between the connecting rib 41 and the main reinforcement 11 is realized by the connecting piece 5.
[0036] Reference Figure 4 The top of the enlarged head 2 is connected to the sink groove 21 and coaxially defines an abutment groove 22, and the cover plate 3 is located in the abutment groove 22 and completely covers the sink groove 21, and the cover plate 3 is plugged into the abutment groove 22. A limiting ring groove 23 is coaxially defined on the inner ring side wall of the abutment groove 22 near the bottom, and a limiting block 31 is coaxially rotatably disposed in the limiting ring groove 23. The limiting block 31 is integrally formed on the side wall of the cover plate 3, and an insertion port 24 is defined on the top wall of the enlarged head 2 corresponding to the limiting block 31 and connected to the limiting ring groove 23.
[0037] Reference Figure 2 and Figure 4 In order to improve the supporting strength of the cover plate 3, a reinforcing ring 32 is coaxially integrally formed at the bottom of the cover plate 3 corresponding to the inner wall of the mounting groove 21. When the cover plate 3 is inserted into the abutment groove 22, the reinforcing ring 32 is fitted against the inner wall of the mounting groove 21.
[0038] Reference Figure 4 A groove 33 is formed at the top of the cover plate 3 away from the reinforcing ring 32 , and an invisible handle 331 is fixedly provided on the top wall of the groove 33 connected to the enlarged head 2 .
[0039] Reference Figure 3 In this embodiment, the connecting member 5 is a threaded sleeve 51, which is located in the recessed groove 21. The threaded sleeve 51 is threadedly sleeved on the threaded sections of the main reinforcement 11 and the connecting reinforcement 41.
[0040] The implementation principle of the precast pile with a reserved anchor bar installation structure in the embodiment of the present application is: holding the handle 331, aligning the limit block 31 on the cover plate 3 with the plug-in port 24 and inserting it from top to bottom into the limit ring groove 23, at this time, the cover plate 3 abuts against the abutment groove 22, and the limit block 31 is located in the limit ring groove 23; turning the handle 331, the cover plate 3 rotates synchronously, so that the limit block 31 overcomes the friction force and rotates to a position away from the plug-in port 24, and is limited in the limit ring groove 23, at this time, the cover plate 3 is firmly installed on the precast pile.
[0041] The pile body 1 with the cover plate 3 installed is inserted vertically into the ground, and the cover plate 3 and the top of the enlarged head 2 are hammered with a hammer, so that the prefabricated pile is completely inserted into the ground vertically.
[0042] The precast columns manufactured in the same way are distributed and piled in batches on the construction land, the cover plates 3 on several precast columns are removed and the caps 4 are collectively covered on the tops of several precast columns. At this time, the connecting ribs 41 on the bottom of the caps 4 correspond one by one to the main force-bearing ribs 11 on each precast column, and the several connecting ribs 41 at the bottom of the caps 4 are inserted into the corresponding sinking grooves 21, and finally the threaded sleeves 51 are threadedly sleeved on the threaded sections of the main force-bearing ribs 11 and the connecting ribs 41 to achieve a fastened connection between the connecting ribs 41 and the main force-bearing ribs 11.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A prefabricated pile with a reserved anchor bar installation structure, characterized in that: The pile body (1) comprises a pile body (1), wherein an enlarged head (2) is coaxially arranged on the top of the pile body (1), a main reinforcement (11) is pre-buried in the middle of the top of the pile body (1), a sinking groove (21) for connecting the main reinforcement (11) is reserved in the middle of the top of the enlarged head (2), and a cover plate (3) for covering the sinking groove (21) is arranged on the top of the enlarged head (2), and the cover plate (3) is detachably arranged on the top of the pile body (1).
2. The prefabricated pile with a reserved anchor bar installation structure according to claim 1, characterized in that: The enlarged head (2) can be configured as a circle, a square or a polygon as required, and is formed by being surrounded by reinforced concrete. Its size and shape can be adjusted according to geological conditions and load-bearing requirements.
3. The prefabricated pile with a reserved anchor bar installation structure according to claim 1, characterized in that: The top of the enlarged head (2) is connected to the sink groove (21) and is coaxially provided with an abutment groove (22); the cover plate (3) is located in the abutment groove (22) and completely covers the sink groove (21); and the cover plate (3) and the abutment groove (22) are plug-fitted.
4. The prefabricated pile with a reserved anchor bar installation structure according to claim 3, characterized in that: A limiting ring groove (23) is coaxially provided on the inner ring side wall of the abutting groove (22) near the bottom, a limiting block (31) is arranged in the limiting ring groove (23), the limiting block (31) is arranged on the cover plate (3), and an insertion interface (24) connected to the limiting ring groove (23) is provided on the top wall of the enlarged head (2) corresponding to the limiting block (31), and the limiting block (31) and the limiting ring groove (23) are coaxially rotatably matched.
5. The prefabricated pile with a reserved anchor bar installation structure according to claim 3, characterized in that: A reinforcing ring (32) is arranged at the bottom of the cover plate (3) corresponding to the inner wall of the mounting recess (21); when the cover plate (3) is inserted into the abutment groove (22), the reinforcing ring (32) is fitted against the inner wall of the mounting recess (21).
6. The prefabricated pile with a reserved anchor bar installation structure according to claim 4, characterized in that: A groove (33) is provided on the top of the cover plate (3) away from the reinforcement ring (32), and an invisible handle (331) is provided in the groove (33).
7. The prefabricated pile with a reserved anchor bar installation structure according to claim 1, characterized in that: A connecting rib (41) is pre-buried at the bottom of the cap (4) corresponding to each stress-bearing main rib (11) on the precast pile. The connecting rib (41) is inserted into the sink (21), and a connecting piece (5) is arranged between the connecting rib and the stress-bearing main rib (11). The connecting piece (5) realizes a fastening connection between the connecting rib (41) and the stress-bearing main rib (11).
8. The prefabricated pile with a reserved anchor bar installation structure according to claim 7, characterized in that: The connecting rib (41) is coaxially arranged with the main stress-bearing rib (11) located in the sink (21), and the outer peripheries of the opposite ends are provided with threads in the same direction. The connecting member (5) is a threaded sleeve (51), and the threaded sleeve (51) is threadedly sleeved on the threaded sections of the main stress-bearing rib (11) and the connecting rib (41).