Bearing platform bottom pile body structure

Abstract

The utility model relates to a bearing platform bottom pile body structure, which belongs to the technical field of building construction and comprises a concrete pile body, and a bearing mechanism for bearing and strengthening the concrete pile body is mounted on the inner side of the concrete pile body. The bearing mechanism comprises a plurality of main longitudinal bars fixedly installed on the inner side of the concrete pile body, a plurality of auxiliary longitudinal bars fixedly installed on the inner top wall of the concrete pile body, and a plurality of first stiffening hoops fixed between the outer sides of the three corresponding main longitudinal bars. The first spiral hoops are fixed between the outer sides of the main longitudinal bars and the outer sides of the auxiliary longitudinal bars, the second spiral hoops are fixed between the outer sides of the main longitudinal bars and the outer sides of the auxiliary longitudinal bars, the second stiffening hoops are fixed between the outer sides of the three corresponding main longitudinal bars, and the auxiliary anti-sedimentation assembly is installed on the outer side of the concrete pile body. According to the bearing platform bottom pile body structure, the actual bearing capacity and stability of the bearing platform bottom pile body structure can be remarkably improved, and the actual strength and durability can be greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, in particular to a pile body structure at the bottom of a pile cap. BACKGROUND

[0002] With the acceleration of urbanization, high-rise buildings and large infrastructure projects are increasing, and the requirements for foundation are also increasing. Traditional pile foundation design often cannot meet the needs of high strength and high stability, resulting in problems such as settlement and even tilting of buildings. In the prior art, researchers have begun to continuously improve the structure of the pile body to enhance the bearing capacity and stability of the bottom of the pile cap.

[0003] According to the concrete pipe pile body structure disclosed in Chinese Patent No. CN220301326U, by setting the connecting ring, the mounting ring, the first mounting plate and the second mounting plate, the two groups of concrete pipe piles are installed together by the fixing bolts, the positioning is accurate, no deviation is generated, the strength of the connection part of the concrete pipe pile body is increased, and the stability of the pile body structure can be further improved.

[0004] However, the pile body structure of the patent still adopts the traditional combination of connecting steel bars and stirrups, so that the prefabricated concrete reinforcement cage forms a cross shape, and the overall structure has limited bearing capacity for radial pressure. At the same time, the durability and actual strength of the pile top are lack of differentiated arrangement due to being exposed to the external environment, which leads to a certain space for improvement in the practicality of the existing concrete pipe pile body structure. To this end, the application provides a pile body structure at the bottom of a pile cap to solve the above problems. CONTENT OF THE INVENTION

[0005] In view of the deficiencies of the prior art, the application provides a pile body structure at the bottom of a pile cap, which has the advantages of significantly improving the actual bearing capacity and stability of the pile body structure at the bottom of the pile cap, and solves the problem of limited bearing capacity of the overall structure for radial pressure in the actual use of the existing pile body structure.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a pile body structure at the bottom of a pile cap, comprising a concrete pile body main body, a bearing mechanism for bearing reinforcement is installed on the inner side of the concrete pile body main body;

[0007] The bearing mechanism comprises a plurality of main longitudinal reinforcement bars fixedly installed inside a concrete pile body main body, a plurality of auxiliary longitudinal reinforcement bars fixedly installed on an inner top wall of the concrete pile body main body, a plurality of first stiffening hoops fixed between the outer sides of the corresponding three main longitudinal reinforcement bars, a first spiral hoop fixed between the outer sides of the main longitudinal reinforcement bars and the auxiliary longitudinal reinforcement bars, a second spiral hoop fixed between the outer sides of the main longitudinal reinforcement bars and the auxiliary longitudinal reinforcement bars, a plurality of second stiffening hoops fixed between the outer sides of the corresponding three main longitudinal reinforcement bars, and an auxiliary anti-settling assembly installed on the outer side of the concrete pile body main body.

[0008] By adopting the above technical scheme, the actual bearing capacity and stability of the pile body structure at the bottom of the pile cap can be significantly improved.

[0009] Further, the auxiliary anti-settling assembly comprises an auxiliary support steel fixed to the outer side of the main longitudinal reinforcement bar, a vertical steel fixed to the bottom end of the auxiliary support steel, and an anti-settling support platform fixed between the outer sides of the auxiliary support steel and the vertical steel.

[0010] By adopting the above technical scheme, the auxiliary support effect of the concrete pile body main body can be achieved.

[0011] Further, the end of the auxiliary support steel away from the corresponding main longitudinal reinforcement bar penetrates the outer side of the concrete pile body main body and extends to the outside.

[0012] By adopting the above technical scheme, the vertical steel can be fixed.

[0013] Further, the auxiliary support steel is inclined downward with the end close to the corresponding main longitudinal reinforcement bar as the top end, and the vertical steel is arranged vertically to the ground.

[0014] By adopting the above technical scheme, the auxiliary support steel and the vertical steel can be combined to form a hollow circular truncated cone structure.

[0015] Further, the anti-settling support platform is in the shape of a circular truncated cone, and the inner side of the anti-settling support platform is fixedly connected to the outer side of the concrete pile body main body.

[0016] By adopting the above technical scheme, the anti-settling support platform can play an auxiliary support role on the outer side of the concrete pile body main body.

[0017] Further, the main longitudinal reinforcement bars and the auxiliary longitudinal reinforcement bars are arranged in an interlaced and spaced manner, and the height of the auxiliary longitudinal reinforcement bars is less than the height of the main longitudinal reinforcement bars.

[0018] By adopting the above technical scheme, the auxiliary longitudinal reinforcement bars can concentrate on strengthening and supporting part of the pile top.

[0019] Further, the first stiffening hoops and the second stiffening hoops are all in the shape of a triangle, and the spacing between adjacent two first stiffening hoops is greater than the spacing between adjacent two second stiffening hoops.

[0020] By adopting the technical scheme, the densely arranged second reinforcing hoop can further increase the radial shear resistance of the pile top structure.

[0021] Further, the bottom end of the second spiral hoop is fixedly connected with the top end of the first spiral hoop, the pitch of the second spiral hoop is smaller than the pitch of the first spiral hoop, and the outer sides of the first spiral hoop and the second spiral hoop are fixedly connected with the inner side of the concrete pile body.

[0022] By adopting the technical scheme, the second spiral hoop and the first spiral hoop can have different effects on the upper and lower parts of the concrete pile body.

[0023] Compared with the prior art, the technical scheme has the following beneficial effects:

[0024] The pile body structure at the bottom of the pile cap can significantly improve the actual bearing capacity and stability of the pile body structure at the bottom of the pile cap by using the inner side bearing mechanism of the concrete pile body, reinforcing the radial direction, and limiting the position of the reinforced structure, so that the overall structural strength of a single pile body can be strengthened while resisting the radial shear force to a certain extent, the stability and stiffness of the entire pile body structure can be significantly improved, the pile top structure can meet the connection requirements of external buildings while greatly increasing the actual strength and durability by rearranging the pile top structure, thereby meeting the stable support requirements of the top building, and the practicality and actual use effect of the pile body structure at the bottom of the pile cap are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present application;

[0026] Figure 2 is a structural schematic diagram of the present application Figure 1 ;

[0027] Figure 3 is a structural schematic diagram of the present application Figure 2 ;

[0028] Figure 4 is a structural schematic diagram of the present application Figure 2 ;

[0029] Figure 5 is a structural schematic diagram of the present application Figure 2 ;

[0030] In the figure: 1, the main body of the concrete pile body; 200, the bearing mechanism; 201, the main longitudinal reinforcement; 202, the auxiliary longitudinal reinforcement; 203, the first stiffening hoop; 204, the first spiral hoop; 205, the second spiral hoop; 206, the second stiffening hoop; 207, the auxiliary support steel; 208, the vertical steel; 209, the anti-settling support platform. DETAILED DESCRIPTION

[0031] 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, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of the present application.

[0032] Please refer to Figures 1 to 5 The present application provides a technical solution: a pile body structure at the bottom of a bearing platform, comprising a concrete pile body main body 1, and a bearing mechanism 200 for bearing reinforcement is installed on the inner side of the concrete pile body main body 1; through the use of the bearing mechanism 200 on the inner side of the concrete pile body main body 1, the actual bearing capacity and stability of the pile body structure at the bottom of the bearing platform can be significantly improved, the radial direction is reinforced, and the reinforced structure is position-limited, so that it can not only strengthen the overall structural strength of a single pile body, but also resist radial shear force to a certain extent, so that the stability and stiffness of the entire pile body structure can be significantly improved, and through the re-arrangement of the pile top structure, the pile top structure can meet the external building connection demand while greatly increasing the actual strength and durability, thereby meeting the stable support demand of the top building, thereby effectively improving the practicality and actual use effect of the pile body structure at the bottom of the bearing platform.

[0033] The bearing mechanism 200 in the embodiment is a structure for strengthening the bearing capacity and strength of the concrete pile body main body 1 itself.

[0034] As shown in Figure 2 , Figure 3 and Figure 4 , the bearing mechanism 200 comprises a plurality of main longitudinal reinforcements 201 fixedly installed on the inner side of the concrete pile body main body 1, a plurality of auxiliary longitudinal reinforcements 202 fixedly installed on the inner top wall of the concrete pile body main body 1, a plurality of first stiffening hoops 203 fixed between the outer sides of the corresponding three main longitudinal reinforcements 201, a first spiral hoop 204 fixed between the outer sides of the main longitudinal reinforcements 201 and the auxiliary longitudinal reinforcements 202, a second spiral hoop 205 fixed between the outer sides of the main longitudinal reinforcements 201 and the auxiliary longitudinal reinforcements 202, a plurality of second stiffening hoops 206 fixed between the outer sides of the corresponding three main longitudinal reinforcements 201, and an auxiliary anti-settling assembly installed on the outer side of the concrete pile body main body 1.

[0035] It should be noted that, asFigure 4 and Figure 5 As shown in

[0036] In addition, the bottom end of the second spiral hoop 205 is fixedly connected with the top end of the first spiral hoop 204, the pitch of the second spiral hoop 205 is smaller than the pitch of the first spiral hoop 204, and the outer sides of the first spiral hoop 204 and the second spiral hoop 205 are fixedly connected with the inner side of the concrete pile body main body 1, so that the second spiral hoop 205 and the first spiral hoop 204 can have a differential effect on the upper and lower parts of the concrete pile body main body 1, thereby significantly increasing the stability and carrying capacity of the pile top structure while ensuring the overall strength.

[0037] The auxiliary anti-settling assembly in the embodiment is a structure for assisting the anti-settling effect of the concrete pile body main body 1.

[0038] As shown in Figure 1 and Figure 2 The auxiliary anti-settling assembly includes an auxiliary support steel 207 fixed to the outer side of the main longitudinal rib 201, a vertical steel 208 fixed to the bottom end of the auxiliary support steel 207, and an anti-settling support table 209 fixed between the outer sides of the auxiliary support steel 207 and the vertical steel 208.

[0039] It should be noted that the end of the auxiliary support steel 207 away from the corresponding main longitudinal rib 201 penetrates the outer side of the concrete pile body main body 1 and extends to the outside, and the auxiliary support steel 207 is downwardly inclined with the end close to the corresponding main longitudinal rib 201 as the top end, and the vertical steel 208 is arranged perpendicular to the ground, so that the auxiliary support steel 207 and the vertical steel 208 can be combined to form a hollow circular truncated cone structure.

[0040] In addition, the anti-settling support table 209 is in the shape of a circular truncated cone, and the inner side of the anti-settling support table 209 is fixedly connected with the outer side of the concrete pile body main body 1, so that the anti-settling support table 209 can assist in supporting the outer side of the concrete pile body main body 1.

[0041] It also needs to be explained that in construction, first, the main longitudinal reinforcement 201 is laid according to the specified position, then it is fixed and limited by the first spiral hoop 204 and the second spiral hoop 205, then the auxiliary longitudinal reinforcement 202 is fixed outside the second spiral hoop 205 to form a reinforcement cage, then the first stiffening hoop 203 and the second stiffening hoop 206 are fixed between the outside of the corresponding three main longitudinal reinforcements 201, finally the auxiliary support steel 207 and the corresponding vertical steel 208 are fixed and then welded at the bottom outside the corresponding main longitudinal reinforcement 201, and then the inside of the formwork and the inside of the reinforcement cage can be poured with concrete after the outside is limited by the concrete pouring formwork. After it solidifies, the concrete pile body main body 1 and the anti-settlement support platform 209 are formed.

[0042] The working principle of the above embodiment is:

[0043] After the construction is completed, the combination structure of the auxiliary support steel 207 and the vertical steel 208 can stably support the inside of the anti-settlement support platform 209, and the anti-settlement support platform 209 can stably stand on the ground for support. By increasing the local transverse area, the settlement of the overall structure can be limited to a certain extent. Under the cooperation of the main longitudinal reinforcement 201, the first stiffening hoop 203 and the first spiral hoop 204, the concrete pile body main body 1 can be supported as a foundation, and the radial bearing capacity of the concrete pile body main body 1 can be improved under the action of the first stiffening hoop 203, so that the stability can be improved. Under the cooperation of the second spiral hoop 205, the second stiffening hoop 206, the auxiliary longitudinal reinforcement 202 and the main longitudinal reinforcement 201, the part of the concrete pile body main body 1 above the ground can be further strengthened, so that the pile top strength can be enhanced as much as possible without excessive increase in diameter, thereby meeting the stable use requirement for a long time.

[0044] Compared with the prior art, the pile body structure at the bottom of the pile cap can significantly improve the actual bearing capacity and stability of the pile body structure at the bottom of the pile cap by using the inside bearing mechanism 200 of the concrete pile body main body 1. By reinforcing the radial direction and limiting the position of the reinforced structure, the overall structural strength of a single pile body can be strengthened, and the radial shear force can be resisted to a certain extent, so that the stability and stiffness of the entire pile body structure can be significantly improved. By rearranging the pile top structure, the pile top structure can meet the connection requirements of external buildings while greatly increasing the actual strength and durability, thereby meeting the stable support requirements of the top building, thereby effectively improving the practicality and actual use effect of the pile body structure at the bottom of the pile cap, and solving the problem that the overall structure of the existing pile body structure has limited bearing capacity for radial pressure in actual use.

Claims

1. A pile shaft structure for a pile cap comprising a concrete pile shaft body (1), characterised in that: The inner side of the concrete pile body main body (1) is provided with a bearing mechanism (200) for bearing reinforcement; The bearing mechanism (200) comprises a plurality of main longitudinal reinforcement (201) fixedly installed on the inner side of the concrete pile body main body (1), a plurality of auxiliary longitudinal reinforcement (202) fixedly installed on the inner top wall of the concrete pile body main body (1), a plurality of first stiffening hoops (203) fixed between the outer sides of the corresponding three main longitudinal reinforcement (201), a first spiral hoop (204) fixed between the outer sides of the main longitudinal reinforcement (201) and the auxiliary longitudinal reinforcement (202), a second spiral hoop (205) fixed between the outer sides of the main longitudinal reinforcement (201) and the auxiliary longitudinal reinforcement (202), a plurality of second stiffening hoops (206) fixed between the outer sides of the corresponding three main longitudinal reinforcement (201), and an auxiliary anti-settlement assembly installed on the outer side of the concrete pile body main body (1).

2. A pile shaft structure according to claim 1, wherein: The auxiliary anti-settlement assembly comprises an auxiliary support steel (207) fixed on the outer side of the main longitudinal reinforcement (201), a vertical steel (208) fixed on the bottom end of the auxiliary support steel (207), and an anti-settlement support platform (209) fixed between the outer sides of the auxiliary support steel (207) and the vertical steel (208).

3. A pile shaft structure according to claim 2, wherein: The end of the auxiliary support steel (207) away from the corresponding main longitudinal reinforcement (201) penetrates the outer side of the concrete pile body main body (1) and extends to the outside.

4. A pile shaft structure according to claim 2, wherein: The auxiliary support steel (207) is inclined downward with the end close to the corresponding main longitudinal reinforcement (201) as the top end, and the vertical steel (208) is perpendicular to the ground.

5. A pile shaft structure according to claim 2, wherein: The anti-settlement support platform (209) is in the shape of a circular truncated cone, and the inner side of the anti-settlement support platform (209) is fixedly connected with the outer side of the concrete pile body main body (1).

6. A pile shaft structure according to claim 1, wherein: The main longitudinal reinforcement (201) and the auxiliary longitudinal reinforcement (202) are arranged in an interlaced and spaced manner, and the height of the auxiliary longitudinal reinforcement (202) is less than that of the main longitudinal reinforcement (201).

7. A pile shaft structure according to claim 1, wherein: The first stiffening hoop (203) and the second stiffening hoop (206) are both in the shape of a triangle, and the spacing between adjacent two first stiffening hoops (203) is greater than that between adjacent two second stiffening hoops (206).

8. A pile shaft structure according to claim 1, wherein: The bottom end of the second spiral hoop (205) is fixedly connected with the top end of the first spiral hoop (204), the pitch of the second spiral hoop (205) is less than that of the first spiral hoop (204), and the outer sides of the first spiral hoop (204) and the second spiral hoop (205) are fixedly connected with the inner side of the concrete pile body main body (1).

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