CN214695555U

CN214695555U - Pile foundation structure

Info

Publication number: CN214695555U
Application number: CN202120688824.8U
Authority: CN
Inventors: 郭瑞琴; 曹平; 郭瑞玲; 曹锴; 晋强; 李振文
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-12
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to a pile foundation structure, it includes the pile foundation body, this internal steel framework that is provided with of pile foundation, the steel framework includes that base, fixed solid fixed ring, the setting that sets up on the base are in a plurality of collars of solid fixed ring top, gu fixed ring with between the collar and equal a plurality of connecting rods of fixedly connected with between collar and the collar, the vertical setting of connecting rod, just the collar with gu the coaxial setting of fixed ring. The application has the advantages of stable structure and good stress resistance.

Description

Pile foundation structure

Technical Field

The application relates to a pile foundation technical field especially relates to a pile foundation structure.

Background

With the continuous development of society, highways, bridges, elevated buildings and the like are continuously constructed to form a structural system of roads, bridges and pile foundations. When designing and constructing a conventional pile foundation, the steps of leveling a field, measuring hole positions, drilling, embedding a reinforcement cage, pouring concrete, forming a pile and the like are generally adopted, and the conventional pile foundation has the advantages of high bearing capacity and convenience in construction.

Chinese patent No. CN209508961 discloses a reinforced pile foundation, which includes a body and a base, wherein the bottom of the body is fixed with a concrete-poured base, and the body is internally provided with a vertical main metal rod and a horizontal metal rib plate in a penetrating manner; the left side and the right side of the base are provided with base extending parts which incline downwards; the body left and right sides middle part is provided with the metal pile of downward sloping to be provided with the through-hole that passes the stay cord at metal pile tip, be convenient for consolidate the pile foundation.

With respect to the related art in the above, the inventors consider that the stability of the reinforced pile foundation is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability of pile foundation, this application provides a pile foundation structure.

The application provides a pile foundation structure adopts following technical scheme:

the utility model provides a pile foundation structure, includes the pile foundation body, this internal steel framework that is provided with of pile foundation, the steel framework includes the base, fixed solid fixed ring, the setting that sets up on the base are in a plurality of collars of solid fixed ring top, gu fixed ring with between the collar a plurality of connecting rods of equal fixedly connected with between collar and the collar, the vertical setting of connecting rod, just the collar with gu the coaxial setting of fixed ring.

Through adopting above-mentioned technical scheme, when the construction, open earlier and dig out and bury underground the hole site, unable adjustment base on the hole bottom base face of burying underground the hole site to fix solid fixed ring at the base top, then in proper order with solid fixed ring and a plurality of collar stay together through the connecting rod, constitute the whole steel framework that is the cylinder type, then strut the concrete mould in the steel framework outside, pour concrete slurry in steel framework after that, just form the pile foundation body after the concrete sets, have that load capacity is strong, anti strain capacity is good advantage.

Optionally, a reinforcing assembly is installed on the steel bar framework, the reinforcing assembly comprises a reinforcing ring sleeved outside the fixing ring, a plurality of reinforcing rods are fixedly connected between the reinforcing ring and the fixing ring, the reinforcing rods are obliquely and downwards inclined towards the direction deviating from the fixing ring, and the reinforcing ring is coaxial with the fixing ring.

Through adopting above-mentioned technical scheme, be formed with the frame structure of frustum shape between the stiffener that the slant declined, reinforcement ring, solid fixed ring and the base, behind concreting, the combination that forms can increase the bearing capacity of pile foundation body to offset the cushioning effect to the stress effect beyond the vertical direction.

Optionally, a plurality of anchoring rings are arranged between the reinforcing ring and the fixing ring, the anchoring rings are concentric with the reinforcing ring, and anchoring rods are fixedly connected between the reinforcing rings and between the adjacent anchoring rings.

Through adopting above-mentioned technical scheme, anchor ring and anchor rod have further strengthened the frame structure's of pile foundation body bottom intensity, improve its bearing capacity.

Optionally, a plurality of reinforcing inner rings are fixedly arranged on the reinforcing rod, the reinforcing inner rings and the reinforcing rings are coaxially arranged, and the plurality of reinforcing inner rings are distributed at intervals along the length direction of the reinforcing rod.

Through adopting above-mentioned technical scheme, strengthen the inner ring and strengthen the anti deformation performance between stiffener and the beaded finish, reduce the probability that causes the weak point of structure to appear between stiffener and the beaded finish because of external stress.

Optionally, the connecting rod includes a threaded portion and a threaded portion, a mounting hole is formed in the mounting ring, and the threaded portion of the connecting rod below the mounting ring penetrates through the mounting hole and is in threaded fit with the threaded portion of the corresponding connecting rod above the mounting ring.

Through adopting above-mentioned technical scheme, through the dismantlement connected mode of connecting rod between collar and the collar, improved the efficiency of construction greatly.

Optionally, the connecting rods are evenly circumferentially spaced around the axis of the mounting ring.

Through adopting above-mentioned technical scheme, the connecting rod can play load and the stress that dispersion pile foundation body received in circumference, improves the isotropy of pile foundation body stress dispersion in vertical direction.

Optionally, a plurality of pull rods are fixedly arranged on the outer side wall of the mounting ring, and the pull rods are uniformly distributed at intervals on the circumference around the axis of the mounting ring.

Through adopting above-mentioned technical scheme, the pull rod can further increase the combined area between steel framework and the concrete, promotes the stability of being connected of steel framework and concrete.

Optionally, a plurality of pull rings are fixedly arranged on the pull rod, and the pull rings and the mounting ring are coaxially arranged.

Through adopting above-mentioned technical scheme, the pull ring can increase the ability that the pull rod resisted stress, reduces the probability that the pull rod takes place to warp.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the steel bar framework with stable structure and high strength is formed by the base, the fixing ring, the mounting ring and the connecting rod, so that the load capacity and the strain resistance of the pile foundation body are improved;

2. the stress resistance of the pile foundation body in other directions except the vertical direction is improved through the reinforcing assembly, so that the structural stability of the pile foundation body is better;

3. the binding force between the steel bar frame body and the concrete is improved through the pull rod and the pull ring, and the structural strength of the pile foundation body is further improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of a reinforcing cage and a reinforcing assembly according to an embodiment of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Description of reference numerals: 1. a pile foundation body; 2. a steel reinforcement frame; 21. a base; 211. a framework; 212. horizontal ribs; 213. vertical ribs; 22. a fixing ring; 23. a mounting ring; 24. mounting holes; 25. a connecting rod; 251. a threaded portion; 252. a screw hole portion; 26. a pull rod; 27. a pull ring; 3. a reinforcement assembly; 31. a reinforcement ring; 32. a reinforcing bar; 33. a reinforcing inner ring; 34. an anchoring ring; 35. and (4) anchoring the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses pile foundation structure. The composite material can be used for building construction of bridges, roads and the like, and can play roles in supporting buildings, transferring external force and the like. Referring to fig. 1 and 2, the pile foundation structure includes pile foundation body 1 and buries the steel framework 2 in pile foundation body 1 underground, steel framework 2 is the cylinder type on the whole, when the construction, excavate in advance and bury the hole site underground, then establish steel framework 2 immediately and bury the hole site underground, and at 2 outside supporting die of steel framework, then with concrete placement in steel framework 2, form columnar pile foundation structure after the concrete curing, certain structural strength and bearing capacity have, play the load-carrying effect to the building.

In some special geological environments and application environments, the traditional steel bar support frame cannot well meet corresponding construction requirements. Referring to fig. 2, in order to solve the above problem, the steel frame 2 includes a base 21, a fixing ring 22, and a plurality of mounting rings 23, the base 21 is a steel frame structure having a rectangular shape as a whole, and the base 21 is fixed on a hole bottom base surface or other plane of an embedding hole. The fixed ring 22 is welded and fixed on the top of the base 21, and the fixed ring 22 is horizontally arranged. The mounting ring 23 is horizontally mounted above the fixing ring 22, the mounting ring 23 is coaxial with the fixing ring 22, and the mounting rings 23 are sequentially and uniformly distributed at intervals along the axis direction of the fixing ring 22. In order to connect the fixing ring 22 and the mounting ring 23, the steel bar frame 2 further comprises a plurality of connecting rods 25, the mounting ring 23 and the fixing ring 22 and the mounting ring 23 are fixedly connected together through the connecting rods 25, and therefore the fixing ring 22, the connecting rods 25 and the mounting ring 23 form a cylindrical casting frame body.

In some special construction environments or requirements, the pile foundation is required to have stress in each direction, and the load stability of the pile foundation is improved. Referring to fig. 2, in order to solve the above problem, a reinforcing assembly 3 is mounted on the reinforcement frame 2, the reinforcing assembly 3 includes a reinforcing ring 31 and a plurality of reinforcing rods 32, the reinforcing ring 31 is disposed outside the base 21 and surrounds the base 21, the reinforcing ring 31 is a circular ring structure surrounded by the reinforcing rods, and the reinforcing ring 31 is coaxial with the fixing ring 22. One end of the reinforcing rod 32 is welded and fixed with the outer annular wall of the fixing ring 22, and the other end of the reinforcing rod is welded and fixed with the reinforcing ring 31, and the reinforcing rod 32 is in an inclined state due to the fact that the height of the fixing ring 22 is higher than that of the reinforcing ring 31, and can provide downward oblique pulling force for the fixing ring 22, and good fixing and stress dispersing effects are achieved. And, can set up the quantity of stiffener 32 according to the construction demand, the quantity of stiffener 32 is eight in this embodiment, and eight stiffeners 32 use the axis of solid fixed ring 22 to be the distribution of scattering form as the center, can improve the structural stability of pile foundation body 1 with the even dispersion of load effort or other stresses that the pile foundation received.

In addition, in order to further improve the performance of the reinforcement assembly 3, referring to fig. 2, a plurality of different anchor rings 34 are disposed between the reinforcement ring 31 and the base 21, the anchor rings 34 are concentric with the reinforcement ring 31, in this embodiment, the number of the anchor rings 34 is two, and the two anchor rings 34 are sequentially and uniformly spaced along the radial direction of the reinforcement ring 31 according to the different diameters. And, between adjacent anchor rings 34, an anchor rod 35 is welded, and the projections of the anchor rod 35 and the reinforcing rod 32 in the vertical direction are collinear. In addition, a plurality of reinforcing inner rings 33 with different diameters are also mounted on the reinforcing rod 32, the reinforcing inner rings 33 and the reinforcing ring 31 are coaxial, the number of the reinforcing inner rings 33 is two in the embodiment, and the two reinforcing inner rings 33 are sequentially and uniformly distributed at intervals along the moving direction of the reinforcing rod 32 according to different diameters. The reinforcing effect on the structures of the base 21 and the fixing ring 22 is improved through the reinforcing inner ring 33 and the anchoring ring 34, and the stability of the pile foundation structure is further improved.

In order to conveniently mount the fixing ring 22, the mounting ring 23 and the connecting rod 25 during construction, referring to fig. 2 and 3, the fixing ring 22, the mounting ring 23 and the connecting rod 25 are detachably connected, the connecting rod 25 includes a threaded portion 251 and a threaded hole portion 252, the threaded portion 251 and the threaded hole portion 252 are respectively located at two ends of the connecting rod 25, the threaded portion 251 is a cylinder, the threaded portion 251 is coaxial with the connecting rod 25, the diameter of the threaded portion 251 is smaller than that of the body of the connecting rod 25, and an external thread is opened on the outer circumferential surface of the threaded portion 251. The screw hole portion 252 has an internal screw hole matching the screw portion 251, and the two connecting rods 25 can be connected together by the screw portion 251 and the screw hole portion 252 through screw thread fit. Wherein, according to the construction needs, install different quantity's connecting rod 25 on the solid fixed ring 22, the connecting rod 25 of installing on the solid fixed ring 22 has eight in this implementation, and the screw thread portion 251 of eight connecting rods 25 and the top surface welded fastening of solid fixed ring 22, the vertical setting of connecting rod 25, and eight connecting rods 25 are the even interval distribution of circumference around the axis of solid fixed ring 22. In addition, for the convenience of installation, the installation ring 23 is provided with installation holes 24 which are matched with the connecting rods 25 in number and positions, when in use, the connecting rods 25 are in one-to-one correspondence with the installation holes 24, and in order to prevent the installation ring 23 from sliding downwards along the connecting rods 25, the diameter of each installation hole 24 is smaller than that of the body of each connecting rod 25. During construction, the screw portion 251 is inserted through the mounting hole 24, and then the screw portions 251 of the other connecting rods 25 are screwed with the screw portions 251, so that the mounting ring 23 and the connecting rods 25 are fixedly connected together in sequence to form a cylindrical casting frame body, and the construction efficiency is high.

In order to improve the bearing capacity of the base 21, referring to fig. 2 and 4, the base 21 includes a framework 211, a horizontal rib 212 and a vertical rib 213, and the framework 211 is a rectangular frame-shaped structure and is formed by bending and welding reinforcing steel bars. Moreover, in this embodiment, two frameworks 211 are provided, one framework 211 is fixed on the hole bottom base surface of the embedding hole, the other framework 211 is located and disposed above, and the projections of the two frameworks 211 in the vertical direction are overlapped. The both ends of horizontal muscle 212 respectively with the ascending both sides welded fastening of skeleton 211 length direction, horizontal muscle 212 is provided with a plurality ofly, and a plurality of horizontal muscle 212 set up along skeleton 211 length direction evenly interval in proper order. The two ends of the vertical rib 213 are respectively welded and fixed with the two opposite frame edges of the framework 211, the vertical rib 213 is provided with a plurality of vertical ribs 213, and the plurality of vertical ribs 213 are distributed at intervals in sequence along the frame edge moving direction of the framework 211, so that the vertical rib 213, the horizontal rib 212 and the framework 211 form a frame structure of a rectangular base 21. The plurality of vertical ribs 213 and the plurality of horizontal ribs 212 can improve the frame structural strength of the base 21, and can bear a larger load.

Referring to fig. 2, a plurality of pull rods 26 are welded and fixed on the outer annular wall of the mounting ring 23, the pull rods 26 are perpendicular to the outer annular wall of the mounting ring 23 and are horizontally arranged, in this embodiment, the number of the pull rods 26 is eight, and the eight pull rods 26 are circumferentially and uniformly distributed at intervals by taking the axis of the mounting ring 23 as a center. And, a plurality of pull rings 27 are welded and fixed on pull rod 26, and the number of pull rings 27 is one in this embodiment, and pull ring 27 and collar 23 coaxial, further improve the intensity of pile foundation structure through pull ring 27 and pull rod 26, improve the load carrying capacity of pile foundation.

The implementation principle of the pile foundation structure in the embodiment of the application is as follows: when the base is used, the base 21 and the fixing ring 22 are fixed on the hole bottom base surface of the embedded hole site, the reinforcing ring 31 is fixed on the outer side of the base 21, the anchoring ring 34 and the anchoring rod 35 are fixed, and the reinforcing rod 32 is fixedly welded between the fixing ring 22 and the reinforcing ring 31, so that the fixing ring 22, the reinforcing ring 31, the anchoring ring 34, the reinforcing rod 32 and the anchoring rod 35 form a frustum-shaped frame structure on the whole; and then the mounting rings 23 and the connecting rods 25 are sequentially mounted to form a steel bar frame, and finally concrete is poured to form a pile foundation structure with stable structure and strong load capacity after solidification.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pile foundation structure, includes pile foundation body (1), its characterized in that: be provided with steel framework (2) in pile foundation body (1), the steel framework includes base (21), fixed solid fixed ring (22), the setting that sets up on base (21) are in a plurality of collars (23) of solid fixed ring (22) top, gu fixed ring (22) with between collar (23) and equal a plurality of connecting rods (25) of fixedly connected with between collar (23) and collar (23), connecting rod (25) vertical setting, just collar (23) with gu fixed ring (22) coaxial setting.

2. A pile foundation structure according to claim 1, wherein: install on steel framework (2) and strengthen subassembly (3), strengthen subassembly (3) establish including the cover strengthen ring (31) outside solid fixed ring (22), strengthen ring (31) with a plurality of stiffeners (32) of fixedly connected with between solid fixed ring (22), stiffener (32) orientation deviates from the direction slant of solid fixed ring (22) sets up down to one side, strengthen ring (31) with gu fixed ring (22) is coaxial.

3. A pile foundation structure according to claim 2, wherein: the reinforcing ring (31) with be provided with a plurality of anchor rings (34) between the solid fixed ring (22), anchor ring (34) with reinforcing ring (31) are concentric, reinforcing ring (31) with between anchor ring (34) and adjacent all fixedly connected with anchor rod (35) between anchor ring (34).

4. A pile foundation structure according to claim 2, wherein: the reinforcing rod (32) is fixedly provided with a plurality of reinforcing inner rings (33), the reinforcing inner rings (33) and the reinforcing rings (31) are coaxially arranged, and the reinforcing inner rings (33) are distributed at intervals along the length direction of the reinforcing rod (32).

5. A pile foundation structure according to claim 1, wherein: the connecting rod (25) comprises a threaded portion (251) and a threaded hole portion (252), a mounting hole (24) is formed in the mounting ring (23), and the threaded portion (251) of the connecting rod (25) below the mounting ring (23) penetrates through the mounting hole (24) and is in threaded fit with the threaded portion (251) of the corresponding connecting rod (25) above the mounting ring (23).

6. A pile foundation structure according to claim 5, wherein: the connecting rods (25) are uniformly distributed at intervals around the axis of the mounting ring (23) in a circumferential manner.

7. A pile foundation structure according to claim 1, wherein: the outer side wall of the mounting ring (23) is fixedly provided with a plurality of pull rods (26), and the pull rods (26) are uniformly distributed at intervals on the circumference around the axis of the mounting ring (23).

8. A pile foundation structure according to claim 7, wherein: a plurality of pull rings (27) are fixedly arranged on the pull rod (26), and the pull rings (27) and the mounting ring (23) are coaxially arranged.