CN202023189U - Hollow concrete square pile for foundation - Google Patents
Hollow concrete square pile for foundation Download PDFInfo
- Publication number
- CN202023189U CN202023189U CN 201120114870 CN201120114870U CN202023189U CN 202023189 U CN202023189 U CN 202023189U CN 201120114870 CN201120114870 CN 201120114870 CN 201120114870 U CN201120114870 U CN 201120114870U CN 202023189 U CN202023189 U CN 202023189U
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- pile
- square pile
- hollow square
- metal end
- end plate
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- 239000004567 concrete Substances 0.000 title claims abstract description 53
- 230000002787 reinforcement Effects 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 26
- 210000003205 muscle Anatomy 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000011178 precast concrete Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A hollow concrete square pile for a foundation comprises at least one reinforcing cage; the reinforcing cage includes skeleton main reinforcements and hoop reinforcements; the hoop reinforcements are spirally and serially welded on the skeleton main reinforcements; metal end plates, which are connected with the reinforcing cage, are arranged at the two ends of the hollow concrete square pile for the foundation; the metal end plates are identical to the pile body of the hollow concrete square pile for the foundation in shape; a round hole is formed in the center of each metal end plate; threading holes and tensioning holes are symmetrically formed among the round holes and the four sides of the metal end plates; the threading holes are counter sinks; and the tensioning holes are connected with the threading holes through reinforcement slots. The hollow concrete square pile for the foundation has the advantages of low possibility of damage, good pile shaft ductility, large pile-forming bearing capacity and favorable bending resistance and shearing resistance.
Description
Technical Field
The utility model relates to a hollow square pile of basic concrete.
Background
The cross section of the precast concrete pile body in the building foundation engineering mainly comprises a precast concrete tubular pile with a circular cross section and a precast concrete square pile with a square or rectangular cross section. Since the last 90 s, with the continuous development of the standardization, production and construction technology of precast concrete tubular piles, the pipe pile products in foundation engineering have been widely accepted, and the pipe pile products in practical engineering have obvious superiority, but have some disadvantages, such as: the tubular pile is of an outer circular structure, so that the tubular pile is not easy to bind and fix during transportation; because the pile body of the tubular pile has a certain ovality, the pile body is easy to be broken when the pressure holding construction is adopted; after the pipe pile is constructed on a soft soil foundation, pile position inclination is easy to occur when a foundation pit is excavated; the pile cap of the pipe pile foundation is larger than that of a square pile, and the foundation cost is higher.
The precast concrete square pile mainly adopts manual non-prestress and vibration forming processes, natural curing is adopted for concrete, and the structure is mostly a solid square section. The prefabricated square pile also has some defects, such as: the production efficiency is low, and the production period is long; the product quality is unstable, and the pile body bearing capacity has defects; insufficient bending resistance and shearing resistance; during construction, four corners of the pile body are easily damaged, so that the pile body is scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hollow square pile of basic concrete to reduce or avoid the aforementioned problem.
In order to solve the problems, the utility model provides a foundation concrete hollow square pile, which comprises at least one steel reinforcement cage; the reinforcement cage comprises a framework main reinforcement and a stirrup, and the stirrup is spirally and continuously welded on the framework main reinforcement; the both ends of hollow square pile of basis concrete be equipped with the metal end plate that the steel reinforcement cage is connected, the appearance of metal end plate with the pile body appearance of hollow square pile of basis concrete is the same, and central authorities have a round hole, the round hole with be equipped with through wires hole and tension hole between the four sides of metal end plate symmetrically, the through wires hole is the counter sink, the tension hole separately through the muscle groove with the through wires hole links to each other.
Preferably, the hollow square pile of basis concrete appearance is square, and the pile core is the mesopore of cylinder, the corner of four sides of the hollow square pile of basis concrete is stress relief arc, the circular arc radius R1 of a circular arc angle of the hollow square pile of basis concrete is 30-40mm, the circular arc radius R2 of other circular arc angles is 10-20mm, the steel reinforcement cage still include at least two with the skeleton owner muscle is parallel, with stirrup welded connection's auxiliary muscle.
Preferably, the threading holes and the tension holes in the metal end plate are in square arrangement, a hoop is arranged at a pile body connecting part of the metal end plate and the foundation concrete hollow square pile, and welding grooves with inclination angles of 30-55 degrees are arranged on four sides of the metal end plate.
Preferably, the main frame rib is a steel bar, the main frame rib is parallel to the pile body contour line of the foundation concrete hollow square pile, and a heading is arranged at the joint of the steel bar and the metal end plate.
The utility model provides a hollow square pile of basic concrete owing to adopted hollow shape, consequently economizes material, dead weight are light, and pile body four sides corner is stress relief arc, and the pile head is connected with the cuff for the stake material is not fragile when the construction hammering, has improved the product and has become the stake rate.
The utility model provides a hollow square pile of basic concrete, main muscle is rationally distributed, the stirrup is the heliciform welding on main muscle to have the auxiliary reinforcement parallel with main muscle, so pile body ductility is good, it is big to become the stake bearing capacity, and bending resistance shear behavior is good.
The utility model provides a hollow square pile of basic concrete, end plate have the welding groove and have also strengthened the fastness of becoming the stake and connecting.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic structural view of an end plate and a hoop of a foundation concrete hollow square pile according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a foundation concrete hollow square pile according to an embodiment of the present invention;
fig. 3 is a top view of a foundation concrete hollow square pile according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a foundation concrete hollow square pile according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
The structure and the principle of a hollow square pile of foundation concrete according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an end plate and a hoop of a foundation concrete hollow square pile according to an embodiment of the present invention; fig. 2 is a schematic structural view of a foundation concrete hollow square pile according to an embodiment of the present invention; fig. 3 is a top view of a foundation concrete hollow square pile according to an embodiment of the present invention; fig. 4 is a schematic cross-sectional view of a foundation concrete hollow square pile according to an embodiment of the present invention. For clarity, a three-axis vertical coordinate system is used as a reference in the drawing, wherein the direction along the coordinate axis z is the axial direction of the base concrete hollow square pile, the direction along the coordinate axis x is the transverse direction of the cross section of the base concrete hollow square pile, and the direction along the coordinate axis y is the longitudinal direction of the cross section of the base concrete hollow square pile.
Specifically, referring to fig. 1, 2 and 4, the foundation concrete hollow square pile comprises at least one reinforcement cage 1 and concrete 2. The reinforcement cage 1 comprises a framework main reinforcement 11 and stirrups 12, and the stirrups 12 of the reinforcement cage are spirally and continuously welded on the framework main reinforcement 11; the foundation concrete hollow square pile is square in shape, the pile core is a cylindrical middle hole, corners on four sides of the pile core are in a stress relief arc shape, the arc radius R1 of one arc angle is 30-40mm, and the arc angle is 90 degrees; the arc radius R2 of the other arc angles is 10-20mm, and the arc angles are also 90 degrees. The corners of four sides of the pile body are arc-shaped for eliminating stress, so that the pile material is not easy to damage when being hammered in building construction. The both ends of the hollow square pile of foundation concrete are equipped with metal end plate 3 that steel reinforcement cage 1 is connected, have further strengthened the intensity of pile head.
In another embodiment, the reinforcement cage 1 further includes at least two auxiliary reinforcements 13 parallel to the main frame reinforcement 11 and welded to the stirrups 12, so as to further enhance the bending resistance and shear resistance of the pile body.
The utility model discloses in, the auxiliary reinforcement 13 is on a parallel with skeleton owner muscle 11 and arranges, and its difference with skeleton owner muscle 11 lies in, and the both ends of skeleton owner muscle 11 are connected respectively on the metal end plate 3 at the both ends of prestressing force square pile for undertake along axial pulling force of pile body or pressure. And the two ends of the auxiliary reinforcement 13 or at least one end is not connected on the metal end plate 3 for bearing the horizontal shearing force of the pile body, the concrete square pile in the prior art is not provided with the auxiliary reinforcement, and the bending resistance and the shearing resistance are slightly poor compared with the technical scheme of the utility model.
In another embodiment, the auxiliary reinforcement 13 is a non-prestressed reinforcement, and is uniformly distributed on the stirrups 12 on at least two symmetrical edges of the pile body cross section, and the number of the stirrups is 2-18.
In another embodiment, the main frame rib 11 is parallel to the pile body contour line.
Referring to fig. 1 and 3, the shape of the metal end plate 3 is the same as that of the pile body, and welding grooves 32 with inclination angles of 30-55 degrees are arranged on four sides of the two end plates, so that the firmness of pile forming connection is enhanced.
In another embodiment, the center of the metal end plate 3 is a circular hole with the same diameter as the hole in the pile core, a threading hole 311 and tension holes 313 are symmetrically arranged between the circular hole and four sides, and each tension hole 313 is connected with the threading hole 311 through a rib groove 312.
In another embodiment, the main frame rib 11 is a steel rod, and the joint of the steel rod and the metal end plate 3 is provided with a heading, so that the connection between the steel rod and the end plate 3 can be more stable.
In another embodiment, the threading holes 311 and the tension holes 313 on the metal end plate 3 are arranged in a generally square shape, and the threading holes 311 are countersunk holes, so that damage to the upset heads of the framework main bars 11 during hammering in construction can be avoided.
In another embodiment, the ferrule 4 is arranged at the connection part of the metal end plate 3 and the pile body, so that the strength of the pile head can be further enhanced, and the pile head is prevented from being damaged when hammering in construction.
In another embodiment, referring to FIG. 1, the length L of the cuff 4 is 110mm to 320 mm. The hoop 4 is provided with 2-4 bulges with the radius of 1-3mm at equal intervals along the axial direction of the concrete hollow square pile.
The utility model provides a hollow square pile of basic concrete owing to adopted hollow shape, consequently economizes material, dead weight are light, and pile body four sides corner is stress relief arc, and the pile head is connected with the cuff for the stake material is not fragile when the construction hammering, has improved the product and has become the stake rate.
The utility model provides a hollow square pile of basic concrete, main muscle is rationally distributed, the stirrup is the heliciform welding on main muscle to have the auxiliary reinforcement parallel with main muscle, so pile body ductility is good, it is big to become the stake bearing capacity, and bending resistance shear behavior is good.
The utility model provides a hollow square pile of basic concrete, end plate have the welding groove and have also strengthened the fastness of becoming the stake and connecting.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (4)
1. A foundation concrete hollow square pile comprises a reinforcement cage (1) and concrete (2); the reinforcement cage (1) is characterized by comprising a framework main reinforcement (11) and stirrups (12), wherein the stirrups (12) are spirally and continuously welded on the framework main reinforcement (11); the both ends of hollow square pile of basic concrete be equipped with metal end plate (3) that steel reinforcement cage (1) is connected, the appearance of metal end plate (3) with the pile body appearance of hollow square pile of basic concrete is the same, and central authorities have a round hole, the round hole with be equipped with through wires hole (311) and tension hole (313) between the four sides of metal end plate (3) symmetrically, through wires hole (311) are the counter sink, tension hole (313) respectively through muscle groove (312) with through wires hole (311) link to each other.
2. The foundation concrete hollow square pile according to claim 1, characterized in that the foundation concrete hollow square pile is square in shape, the pile core is a cylindrical center hole, the four corners of the foundation concrete hollow square pile are in the shape of a stress relief arc, the arc radius R1 of one arc corner of the foundation concrete hollow square pile is 30-40mm, the arc radius R2 of the other arc corners is 10-20mm, and the reinforcement cage (1) further comprises at least two auxiliary ribs (13) parallel to the framework main rib (11) and welded to the hoop rib (12).
3. The foundation concrete hollow square pile according to claim 2, wherein the threading holes (311) and the tension holes (313) on the metal end plate (3) are arranged in a square shape, a hoop (4) is arranged at the pile body connecting part of the metal end plate (3) and the foundation concrete hollow square pile, and welding grooves (32) with inclination angles of 30-55 degrees are arranged on four sides of the metal end plate (3).
4. The foundation concrete hollow square pile according to claim 3, wherein the skeleton main reinforcement (11) is a steel bar, the skeleton main reinforcement (11) is parallel to the pile body contour line of the foundation concrete hollow square pile, and the joint of the steel bar and the metal end plate (3) is provided with a heading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120114870 CN202023189U (en) | 2011-04-19 | 2011-04-19 | Hollow concrete square pile for foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120114870 CN202023189U (en) | 2011-04-19 | 2011-04-19 | Hollow concrete square pile for foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023189U true CN202023189U (en) | 2011-11-02 |
Family
ID=44848145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120114870 Ceased CN202023189U (en) | 2011-04-19 | 2011-04-19 | Hollow concrete square pile for foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225297A (en) * | 2013-03-29 | 2013-07-31 | 南通中技桩业有限公司 | Strengthening structure of prestressed hollow square pile |
| CN103233463A (en) * | 2013-05-23 | 2013-08-07 | 建华建材（中国）投资有限公司 | Concrete prefabricated product for underground construction and production method of product |
| CN111037736A (en) * | 2019-11-18 | 2020-04-21 | 福建大力新型建材科技有限公司 | Prestressed concrete high-strength anti-corrosion pipe pile and production method thereof |
-
2011
- 2011-04-19 CN CN 201120114870 patent/CN202023189U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225297A (en) * | 2013-03-29 | 2013-07-31 | 南通中技桩业有限公司 | Strengthening structure of prestressed hollow square pile |
| CN103233463A (en) * | 2013-05-23 | 2013-08-07 | 建华建材（中国）投资有限公司 | Concrete prefabricated product for underground construction and production method of product |
| CN103233463B (en) * | 2013-05-23 | 2016-06-08 | 建华建材（中国）投资有限公司 | A kind of concrete prefabricated product for underground engineering and production method thereof |
| CN111037736A (en) * | 2019-11-18 | 2020-04-21 | 福建大力新型建材科技有限公司 | Prestressed concrete high-strength anti-corrosion pipe pile and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAO LEI Free format text: FORMER OWNER: SHANGHAI ZHONGJI PILE INDUSTRY CO., LTD. Effective date: 20131206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200434 HONGKOU, SHANGHAI TO: 201999 BAOSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131206 Address after: 201999, room 57, No. three, 104 village, Baosteel, Shanghai, Baoshan District Patentee after: Bao Lei Address before: 200434, 4, 2 building, 437 Guang Yue Road, Shanghai, Hongkou District Patentee before: Shanghai Zhongji Pile Industry Co., Ltd. |
|
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20140408 Decision number of declaring invalidation: 22273 Granted publication date: 20111102 |