Pile foundation structure for building construction
By embedding threaded sleeves on prefabricated square piles and using the combined structure of anchored steel bars and threaded columns, the rapid connection between prefabricated square piles and pile bearings is achieved, solving the problem of difficulty in inner hole diameter control in the existing technology, and improving the problem of improving the Construction efficiency and quality.
Patent Information
- Application Number
- CN202421235605.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the construction process of the existing pile foundation structure, the inner hole diameter of the prefabricated square piles is difficult to accurately control, resulting in the inability to insert the steel cage, and the hole expansion or re-made steel cage is required, which increases the burden on staff and affects the construction progress.
Design a pile foundation structure for construction, with multiple threaded sleeves embedded on the top of the prefabricated square pile, multiple anchor steel bars are vertically arranged inside the pile bearing platform, and thread columns are arranged at the bottom of the anchor steel bars, and thread columns are realized by connecting the sleeves and The connection of threaded sleeves does not require the use of a steel cage.
The rapid connection between prefabricated square piles and pile bearings is achieved, which reduces the burden on staff, improves construction efficiency, and saves concrete volume and construction period.
Smart Images
Figure CN222513200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building facilities, in particular to a pile foundation structure for building construction. Background Art
[0002] Pile foundation is a deep foundation composed of piles and pile caps connected to the top of the piles. If the pile body is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low cap pile foundation. If the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high cap pile foundation.
[0003] The pile foundation in the related technology usually includes a prefabricated square pile and a pile cap. The prefabricated square pile and the pile cap are usually connected by a steel cage, that is, the bottom end of the steel cage is inserted into the prefabricated square pile, and then the top end of the steel cage is welded and fixed to the anchor steel bars at the bottom of the pile cap, and then concrete is poured between the prefabricated square pile and the pile cap to achieve the connection between the prefabricated square pile and the pile cap.
[0004] Then, since the inner diameter of the prefabricated square piles made of concrete is difficult to accurately control during the processing, the problem of the steel cage being unable to be inserted into the prefabricated square piles often occurs. At this time, the staff needs to expand the hole of the prefabricated square pile or remake the steel cage, which not only increases the burden on the staff, but also affects the construction progress and needs to be improved. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pile foundation structure for building construction, which can achieve rapid connection between prefabricated square piles and pile caps, reduce the burden on workers, and improve construction efficiency.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a pile foundation structure for construction, comprising a prefabricated square pile and a pile cap, wherein a plurality of threaded sleeves are pre-embedded on the top of the prefabricated square pile, and the plurality of threaded sleeves are arranged at equal intervals along the circumference of the prefabricated square pile, and a plurality of anchoring steel bars are vertically arranged inside the pile cap, and the bottom ends of the plurality of anchoring steel bars respectively extend downward to the bottom of the pile cap, and the plurality of anchoring steel bars correspond one to one to the plurality of threaded sleeves;
[0007] The bottom end of each anchor steel bar is coaxially fixedly connected with a threaded column, and a connecting sleeve is arranged between each threaded column and the corresponding threaded sleeve. The outer wall of the connecting sleeve is provided with an external thread, and the inner wall is provided with an internal thread. The external thread can be threadedly connected to the connecting sleeve, and the internal thread can be threadedly connected to the corresponding threaded column, and the thread directions of the internal thread and the external thread are opposite.
[0008] In a preferred example, the utility model can be further configured as follows: a plurality of supporting steel bars are vertically arranged inside the prefabricated square pile, and the plurality of supporting steel bars are arranged at equal intervals along the circumference of the prefabricated square pile.
[0009] In a preferred example, the utility model can be further configured as follows: the plurality of support steel rods correspond one-to-one to the plurality of threaded sleeves, and the plurality of support steel rods are respectively welded and fixed to the corresponding threaded sleeves.
[0010] In a preferred example, the utility model can be further configured as follows: the top end of the support steel rod is inserted into the corresponding threaded sleeve, the top fixed sleeve of the support steel rod is provided with a support ring, a limiting ring is provided at the bottom port of the threaded sleeve, and the lower surface of the support ring abuts against the upper surface of the corresponding limiting ring.
[0011] In a preferred example, the utility model can be further configured as follows: the pile foundation structure also includes a plurality of conversion nuts, the conversion nuts can be welded and fixed to the corresponding supporting steel rods, and the connecting sleeve can be threadedly connected to the corresponding conversion nuts.
[0012] In a preferred example, the utility model can be further configured as follows: three arc-shaped anchoring clamps are movably arranged inside each of the conversion nut, the outer walls of the three anchoring clamps are respectively provided with connecting threads, and the inner walls are respectively provided with anti-slip threads, the three anchoring clamps can be surrounded by the corresponding four positions of the supporting steel rods, and the anti-slip threads can be tightly pressed against the supporting steel rods, and the connecting threads can be threadedly connected to the conversion nut.
[0013] In a preferred example, the utility model can be further configured as follows: a guiding slope is provided at the bottom position of the outer side wall of the anchoring card plate.
[0014] In summary, the utility model has the following beneficial effects:
[0015] By embedding threaded sleeves on prefabricated square piles and setting threaded columns at the bottom of anchoring steel bars, the threaded columns can be connected to the threaded sleeves through connecting sleeves, thereby realizing the connection between the prefabricated square piles and the pile cap. This design does not require the use of steel cages, and the inner diameter size of the prefabricated square piles does not require additional attention. At the same time, the production accuracy of components such as threaded sleeves and threaded columns is higher. On-site operations can quickly realize the connection between prefabricated square piles and pile caps without rework, which can not only reduce the burden on staff, but also improve work efficiency.
[0016] Not only that, this design shortens the distance between the prefabricated square piles and the pile cap, reduces the height of the concrete core, and saves concrete. At the same time, only a wrench is needed for construction, which is quick and convenient. Compared with the processing of steel cages, this design has a faster production progress, saves construction time, and has better quality control. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the overall structure of Example 1;
[0018] Figure 2 is an exploded view of Example 1;
[0019] Figure 3 yes Figure 1 A magnified schematic diagram of the middle A area;
[0020] Figure 4 is a schematic diagram of the overall structure of Example 2;
[0021] Figure 5 is an exploded view of Example 2;
[0022] Figure 6 yes Figure 4 A magnified schematic diagram of area B.
[0023] Figure numerals: 1. Prefabricated square pile; 2. Pile cap; 3. Threaded sleeve; 4. Anchor steel bar; 5. Threaded column; 6. Connecting sleeve; 7. External thread; 8. Internal thread; 9. Support steel bar; 10. Support ring; 11. Limiting ring; 12. Conversion nut; 13. Anchoring clamp; 14. Connecting thread; 15. Anti-slip thread; 16. Guide ramp. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below in conjunction with the accompanying drawings. Example
[0025] like Figure 1 , Figure 2 , Figure 3 The example 1 of the utility model is shown, which discloses a pile foundation structure for construction, including a prefabricated square pile 1 and a pile cap 2. A plurality of threaded sleeves 3 are pre-embedded on the top of the prefabricated square pile 1. The plurality of threaded sleeves 3 are arranged at equal intervals along the circumference of the prefabricated square pile 1, and the top of the threaded sleeve 3 is flush with the upper surface of the prefabricated square pile 1.
[0026] Reference Figure 1 , Figure 2 , Figure 3A plurality of anchoring steel bars 4 are vertically arranged inside the pile cap 2, and the bottom ends of the plurality of anchoring steel bars 4 extend downward to the bottom of the pile cap 2 respectively, and the plurality of anchoring steel bars 4 correspond one by one to the plurality of threaded sleeves 3. At the same time, the bottom end of each anchoring steel bar 4 is coaxially fixedly connected with a threaded column 5.
[0027] Reference Figure 1 , Figure 2 , Figure 3 A connecting sleeve 6 is provided between each threaded column 5 and the corresponding threaded sleeve 3, and the outer wall of the connecting sleeve 6 is provided with an external thread 7 and the inner wall is provided with an internal thread 8. The external thread 7 can be threadedly connected with the connecting sleeve 6, and the internal thread 8 can be threadedly connected with the corresponding threaded column 5. The thread directions of the internal thread 8 and the external thread 7 are opposite, and a hexagonal control surface is provided on the top of the connecting sleeve 6 for the wrench to cooperate with.
[0028] When the height of the prefabricated square pile 1 is appropriate, that is, when the pile does not need to be cut, a plurality of connecting sleeves 6 are respectively threadedly connected to the corresponding threaded column 5 by a wrench, and the bottom of the threaded column 5 is passed through the connecting sleeve 6. Subsequently, the connecting sleeve 6 is aligned with the corresponding threaded sleeve 3, and then the connecting sleeve 6 is rotated by a wrench to make the connecting sleeve 6 threadably matched with the threaded sleeve 3. In this process, the connecting sleeve 6 moves downward relative to the threaded column 5. When the connecting sleeve 6 is tightened, the bottom end of the connecting sleeve 6 is flush with the bottom end of the threaded column 5, that is, the top end of the threaded column 5 is located in the connecting sleeve 6. Subsequently, concrete is poured between the prefabricated square pile 1 and the pile cap 2 to achieve the connection between the prefabricated square pile 1 and the pile cap 2.
[0029] By pre-embedding the threaded sleeve 3 on the prefabricated square pile 1 and setting the threaded column 5 at the bottom of the anchor steel bar 4, the threaded column 5 can be connected to the threaded sleeve 3 through the connecting sleeve 6, so as to realize the connection between the prefabricated square pile 1 and the pile cap 2. This design does not need to use a steel cage, and the inner diameter size of the prefabricated square pile 1 does not need to be paid extra attention to. At the same time, the production accuracy of components such as the threaded sleeve 3 and the threaded column 5 is higher. On-site operations can quickly realize the connection between the prefabricated square pile 1 and the pile cap 2 without rework, which can not only reduce the burden on the staff, but also improve work efficiency.
[0030] Moreover, this design shortens the distance between the prefabricated square pile 1 and the pile cap 2, reduces the height of the concrete core, and saves the amount of concrete. At the same time, only a wrench is needed for construction, which is quick and convenient. Compared with the processing of steel cages, this design has a faster production progress, saves construction time, and has better quality control.
[0031] Reference Figure 1 , Figure 2 , Figure 3A plurality of supporting steel bars 9 are vertically arranged inside the prefabricated square pile 1, and the plurality of supporting steel bars 9 are arranged at equal intervals along the circumference of the prefabricated square pile 1 to improve the structural strength of the prefabricated square pile 1. At the same time, the plurality of supporting steel bars 9 correspond to the plurality of threaded sleeves 3 one by one, and the plurality of supporting steel bars 9 are respectively welded and fixed to the corresponding threaded sleeves 3 to improve the connection stability between the threaded sleeves 3 and the prefabricated square pile 1.
[0032] Reference Figure 1 , Figure 2 , Figure 3 The top end of the support steel rod 9 is inserted into the corresponding threaded sleeve 3, a support ring 10 is fixedly sleeved on the top of the support steel rod 9, a limiting ring 11 is integrally formed at the bottom port of the threaded sleeve 3, and the lower surface of the support ring 10 abuts against the upper surface of the corresponding limiting ring 11, thereby improving the connection stability between the support steel rod 9 and the threaded sleeve 3. Example
[0033] like Figure 4 , Figure 5 , Figure 6 The example 2 of the utility model is shown. The difference between this example and the example 1 is that the pile foundation structure also includes a plurality of conversion nuts 12, and the plurality of conversion nuts 12 correspond one-to-one to the plurality of supporting steel rods 9. The conversion nuts 12 can be welded and fixed to the corresponding supporting steel rods 9, and the connecting sleeve 6 can be threadedly connected to the corresponding conversion nuts 12.
[0034] Reference Figure 4 , Figure 5 , Figure 6 , three arc-shaped anchoring clips 13 are movably arranged inside each conversion nut 12, and the outer walls of the three anchoring clips 13 are respectively provided with connecting threads 14, and the inner walls are respectively provided with anti-slip threads 15. The three anchoring clips 13 can surround the surrounding positions of the corresponding supporting steel rods 9, and the anti-slip threads 15 can be tightly pressed against the supporting steel rods 9, and the connecting threads 14 can be threadedly connected with the conversion nut 12. At the same time, the bottom position of the outer wall of the anchoring clip 13 is integrally formed with a guide slope 16, so that the anchoring clip 13 can be quickly inserted into the conversion nut 12.
[0035] When the height of the prefabricated square pile 1 is relatively high, that is, the pile needs to be cut, and the entire threaded sleeve 3 is cut off, the conversion nut 12 is put on the supporting steel rod 9, and then the three anchoring clips 13 are placed around the supporting steel rod 9, and the anti-slip thread 15 is pressed against the supporting steel rod 9, and then the conversion nut 12 is rotated, and the three anchoring clips 13 are respectively matched with the conversion nut 12 thread, and then the conversion nut 12, the supporting steel rod 9 and the three anchoring clips 13 are welded and fixed. Next, the threaded column 5 is connected to the conversion nut 12 through the connecting sleeve 6, and then concrete is poured between the prefabricated square pile 1 and the pile cap 2, so that the connection between the prefabricated square pile 1 and the pile cap 2 can be achieved.
[0036] This design allows the prefabricated square pile 1 to be quickly connected to the pile cap 2 after the prefabricated square pile 1 is cut, thereby improving adaptability, convenient operation, and effectively improving construction efficiency. At the same time, the provision of the anchoring clip 13 can improve the connection stability between the supporting steel rod 9 and the conversion nut 12, thereby improving the structural strength.
[0037] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A pile foundation structure for building construction, comprising a prefabricated square pile (1) and a pile cap (2), characterized in that: A plurality of threaded sleeves (3) are pre-embedded at the top of the prefabricated square pile (1), and the plurality of threaded sleeves (3) are arranged at equal intervals along the circumference of the prefabricated square pile (1). A plurality of anchoring steel bars (4) are vertically arranged inside the pile cap (2), and the bottom ends of the plurality of anchoring steel bars (4) respectively extend downward to the bottom of the pile cap (2), and the plurality of anchoring steel bars (4) correspond one to one to the plurality of threaded sleeves (3); The bottom end of each anchoring steel bar (4) is coaxially fixedly connected with a threaded column (5), and a connecting sleeve (6) is arranged between each threaded column (5) and the corresponding threaded sleeve (3). The outer wall of the connecting sleeve (6) is provided with an external thread (7), and the inner wall is provided with an internal thread (8). The external thread (7) can be threadedly connected to the connecting sleeve (6), and the internal thread (8) can be threadedly connected to the corresponding threaded column (5), and the thread direction of the internal thread (8) is opposite to that of the external thread (7).
2. A pile foundation structure for construction according to claim 1, characterized in that: A plurality of supporting steel bars (9) are vertically arranged inside the prefabricated square pile (1), and the plurality of supporting steel bars (9) are arranged at equal intervals along the circumference of the prefabricated square pile (1).
3. A pile foundation structure for construction according to claim 2, characterized in that: The plurality of support steel bars (9) correspond to the plurality of threaded sleeves (3) one by one, and the plurality of support steel bars (9) are respectively welded and fixed to the corresponding threaded sleeves (3).
4. A pile foundation structure for construction according to claim 3, characterized in that: The top end of the support steel rod (9) is inserted into the corresponding threaded sleeve (3), the top fixed sleeve of the support steel rod (9) is provided with a support ring (10), a limit ring (11) is provided at the bottom port of the threaded sleeve (3), and the lower surface of the support ring (10) is in contact with the upper surface of the corresponding limit ring (11).
5. A pile foundation structure for construction according to claim 4, characterized in that: The pile foundation structure further comprises a plurality of conversion nuts (12), wherein the conversion nuts (12) can be welded and fixed to the corresponding supporting steel bars (9), and the connecting sleeve (6) can be threadedly connected to the corresponding conversion nuts (12).
6. A pile foundation structure for construction according to claim 5, characterized in that: Three arc-shaped anchoring clips (13) are movably arranged inside each of the conversion nuts (12); the outer walls of the three anchoring clips (13) are respectively provided with connecting threads (14) and the inner walls are respectively provided with anti-slip threads (15); the three anchoring clips (13) can be arranged around the corresponding supporting steel rods (9), and the anti-slip threads (15) can be pressed against the supporting steel rods (9); and the connecting threads (14) can be threadedly connected to the conversion nuts (12).
7. A pile foundation structure for construction according to claim 6, characterized in that: A guiding inclined surface (16) is provided at the bottom of the outer side wall of the anchoring clamping plate (13).