CN220266621U

CN220266621U - Combined foundation pile

Info

Publication number: CN220266621U
Application number: CN202321845028.6U
Authority: CN
Inventors: 沈晓冬
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2023-12-29
Anticipated expiration: 2033-07-14

Abstract

Combined foundation pile, its characterized in that: the frame structure comprises a panel supporting beam, an upright post and a bottom plate supporting beam, and a cuboid frame structure is formed. The bottom plate supporting beam is connected with bottom surface steel bars which are vertically and horizontally distributed and are paved in the whole bottom surface area; the panel supporting beam is provided with a long transverse rib on the top surface, a long longitudinal rib on the top surface, a short longitudinal rib on the top surface and a short transverse rib on the top surface, so that a rectangular space inside the frame structure is formed. A bearing platform is arranged above the rectangular space; steel hooks are fixedly connected to one periphery of the bearing platform, and vertical pipes are connected to four corners of the bearing platform; the bearing platform is provided with a base fixing bolt set. The foundation pile is arranged below the concrete foundation groove. The risk that the bearing platform and the steel bars are pulled out when subjected to alternating stress is avoided through the steel hooks; the problem of need deep pile driving increase in cost is solved, the steel hook has carried out cold bending work hardening in advance and has handled, has improved intensity.

Description

Combined foundation pile

Technical Field

The application relates to the field of constructional engineering, in particular to a combined foundation pile.

Background

The tower crane is a common device in the construction engineering, and is installed on foundation piles fixed on the ground. The foundation pile is used as a foundation of the tower crane, and different types of construction and reinforcement are required according to the soil conditions. The foundation pile is divided into a pile body at the lower part and a bearing platform at the upper part for connecting the pile top. The tower crane is subjected to bending moments in different directions, and the bending moment is transmitted to the foundation pile, so that the foundation pile is subjected to alternating load of tensile and compressive stress. The bearing platform is welded on the steel bars and is cast with the concrete into a whole. The foundation piles resist upward tensile stress by virtue of friction force and surrounding soil layers, so that the foundation piles are directly exposed out of the ground, and the bending moment which can be born by the tower crane is reduced. The welded reinforcing steel bars are subjected to plastic deformation under the action of alternating stress, and the reinforcing steel bars welded with the bearing platform into a whole slowly taper from top to bottom under the action of a work hardening phenomenon, so that the risk of extracting the foundation pile exists.

Disclosure of Invention

First technical problem

Aiming at the prior art, the problems of the prior art are as follows: the foundation pile bears the acting force from the bending moment of the crane, so that the risk of accidents caused by the fact that the foundation pile is pulled out is high, and the foundation pile is deeply buried and has high piling cost; the steel bars welded with the bearing platform are subjected to alternating stress and have the risk of being thinned and pulled out.

(II) technical scheme

To above-mentioned technical problem, according to the combination formula foundation pile of this application, its characterized in that: the frame structure comprises a panel supporting beam, an upright post and a bottom plate supporting beam, and a cuboid frame structure is formed. The bottom plate supporting beam is connected with bottom surface steel bars which are vertically and horizontally distributed and are paved in the whole bottom surface area; the panel supporting beam is provided with a long transverse rib on the top surface, a long longitudinal rib on the top surface, a short longitudinal rib on the top surface and a short transverse rib on the top surface, so that a rectangular space inside the frame structure is formed. A bearing platform is arranged above the rectangular space; steel hooks are fixedly connected to one periphery of the bearing platform, and vertical pipes are connected to four corners of the bearing platform; the bearing platform is provided with a base fixing bolt set. The foundation pile is arranged below the concrete foundation groove.

Further, the number of the steel hooks is 16, and the steel hooks are manufactured through cold bending and welded with the bearing platform into a whole.

Further, the upper surface of the foundation pile is square, and the length ratio of the long longitudinal ribs on the top surface to the short longitudinal ribs on the top surface is 8:1.

further, the bearing platform is square, the bearing platform is of a steel plate structure, the side length is 3/4 of the length of the longitudinal ribs on the top surface, and the side length of the square opening in the middle of the bearing platform is 1/2 of the side length of the bearing platform.

Further, the vertical pipe and the vertical column are made of square steel, and the section size of the vertical pipe is 2 times of that of the vertical column.

Further, the length of the vertical pipe is 1.25 times of the length of the vertical column.

Further, the height of the concrete foundation trench is greater than the height of the foundation pile, and the horizontal dimension of the concrete foundation trench is greater than the dimension of the foundation pile.

(III) beneficial effects

The risk that the bearing platform and the steel bars are pulled out when subjected to alternating stress is avoided through the steel hooks; the problem of need deep pile driving increase in cost is solved, the steel hook has carried out cold bending work hardening in advance and has handled, has improved intensity.

Drawings

Fig. 1 is an isometric view of a rebar framework in accordance with the present application;

fig. 2 is a top view of a rebar framework in accordance with the present application;

fig. 3 is a front view of a rebar framework in accordance with the present application;

FIG. 4 is an isometric view of a general assembly view according to the present application;

reference numerals

1. Panel support beam

2. Upright post

3. Bottom surface reinforcing steel bar

4. Bottom plate supporting beam

5. Long transverse rib on top surface

6. Top long longitudinal bar

7. Short longitudinal rib on top surface

8. Base fixing bolt set

9. Steel hook

10. Vertical pipe

11. Bearing platform

12. Concrete foundation trench

13. Short transverse rib on top surface

Detailed Description

The utility model is further illustrated below with reference to examples.

As shown in fig. 1 to 4, the combined foundation pile according to the present application is characterized in that: the panel support beam comprises a panel support beam 1, an upright post 2 and a bottom plate support beam 4, and a cuboid frame structure is formed. The bottom plate supporting beam 4 is connected with bottom steel bars 3, the bottom steel bars 3 are vertically and horizontally distributed and are paved on the whole bottom surface area; the panel supporting beam 1 is provided with a long top transverse rib 5, a long top longitudinal rib 6, a short top longitudinal rib 7 and a short top transverse rib 13, so that a rectangular space inside the frame structure is formed. A bearing platform 11 is arranged above the rectangular space; steel hooks 9 are fixedly connected to one circle of the bearing platform 11, and vertical pipes 10 are connected to four corners of the bearing platform 11; the bearing platform 11 is provided with a base fixing bolt sleeve 8. The foundation piles are installed below the concrete foundation pit 12.

The foundation pile is positioned below the secondarily poured concrete foundation groove, so that the stability of the foundation pile is improved, and the steel hooks are used for preventing the foundation pile from being pulled out due to deformation of the steel bars when the steel bars are subjected to long-time alternating stress. The outermost side is a steel pipe frame structure, and the strength of the central part is improved by adopting a steel plate and vertical pipe adding mode at the position of the hanging tower. And pouring concrete on the steel structure, reserving a space for installing the hanging tower, sleeving and fixing the hanging tower through a fixing bolt, and pouring concrete at a gap to integrate the hanging tower with the foundation pile, the concrete foundation groove and the bearing platform.

The cold bending produces work hardening, improves the strength of the bending part, and avoids the tensile deformation during working.

the square can ensure that the stress in all directions is balanced when the cross beam on the tower crane rotates.

And a structure that the bearing platform is higher than the upper top surface of the foundation pile is formed, so that the installation of the crane is convenient.

The using method comprises the following steps: firstly, constructing a steel structure of a foundation pile, installing a wood board on the outer surface of the steel structure to pour concrete, and then pouring a concrete foundation groove after the concrete is solidified. And after the tower crane is installed, grouting concrete in gaps between the foundation piles and the soil layer and gaps between the foundation piles, the tower crane and the concrete foundation slots.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. Combined foundation pile, its characterized in that: the device comprises a panel supporting beam, an upright post and a bottom plate supporting beam, and forms a cuboid frame structure; the bottom plate supporting beam is connected with bottom surface steel bars which are vertically and horizontally distributed and are paved in the whole bottom surface area; the panel supporting beam is provided with a long top transverse rib, a long top longitudinal rib, a short top longitudinal rib and a short top transverse rib, so that a rectangular space inside the frame structure is formed; a bearing platform is arranged above the rectangular space; steel hooks are fixedly connected to one periphery of the bearing platform, and vertical pipes are connected to four corners of the bearing platform; the bearing platform is provided with a base fixing bolt set; the foundation pile is arranged below the concrete foundation groove.

2. The modular foundation footing of claim 1 wherein: the number of the steel hooks is 16, and the steel hooks are manufactured through cold bending and welded with the bearing platform into a whole.

3. The modular foundation footing of claim 1 wherein: the upper surface of the foundation pile is square, and the length ratio of the long longitudinal ribs on the top surface to the short longitudinal ribs on the top surface is 8:1.

4. the modular foundation footing of claim 1 wherein: the bearing platform is square, the bearing platform is of a steel plate structure, the side length is 3/4 of the length of the long longitudinal ribs on the top surface, and the side length of the square opening in the middle of the bearing platform is 1/2 of the side length of the bearing platform.

5. The modular foundation footing of claim 1 wherein: the vertical pipe and the vertical column are made of square steel, and the section size of the vertical pipe is 2 times of that of the vertical column.

6. The modular foundation footing of claim 1 wherein: the length of the vertical pipe is 1.25 times of the length of the vertical pipe.

7. The modular foundation footing of claim 1 wherein: the height of the concrete foundation trench is larger than that of the foundation pile, and the dimension of the concrete foundation trench in the horizontal direction is larger than that of the foundation pile.