CN107268606A - A kind of variable cross-section concrete tubular pile - Google Patents
A kind of variable cross-section concrete tubular pile Download PDFInfo
- Publication number
- CN107268606A CN107268606A CN201710598291.2A CN201710598291A CN107268606A CN 107268606 A CN107268606 A CN 107268606A CN 201710598291 A CN201710598291 A CN 201710598291A CN 107268606 A CN107268606 A CN 107268606A
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- CN
- China
- Prior art keywords
- concrete
- pile body
- steel reinforcement
- reinforcement cage
- column steel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of variable cross-section concrete tubular pile, including concrete pile body, column steel reinforcement cage is formed in the concrete-pile body, the external diameter of the column steel reinforcement cage is the 2/3 ~ 4/5 of concrete pile body external diameter, and many piece parallel with pile body bus are distributed uniformly and circumferentially on column steel reinforcement cage outer cylinder through reinforcing bar, in addition, multiple caged anchor ears are also arranged at intervals with the outer cylinder of the column steel reinforcement cage, the caged anchor ear is welded in inner side on column steel reinforcement cage, concrete pile body is stretched out in outside, and it is bottom laminating concrete pile body that it, which stretches out section of the part of concrete pile body on ring, hypotenuse right-angled trapezium directed downwardly, simultaneously, the caged anchor ear is wrapped up entirely through concreting, concrete-pile pile body is formed with the profile convex annular stage structure consistent with caged anchor ear on correspondence position.Good integrity of the present invention, Stability Analysis of Structures, and with outstanding bearing capacity and intensity.
Description
Technical field
The present invention relates to engineering construction field, specifically a kind of variable cross-section concrete tubular pile.
Background technology
It is a large amount of that pile foundation is used as using prestressed concrete pipe pile in the existing Industrial and Civil Engineering pile foundation of China
Plinth.This kind of pile for prestressed pipe is using pretensioned prestressing as precast construction stake and fills the works such as levigate material, high efficiency water reducing agent
Skill, by concrete through the closely knit shaping of centrifugal dehydration, a kind of elongated hollow being made by the steam curing twice of normal pressure, high pressure is pre-
Concrete component processed, with excellent mechanical performance, is mainly used in pile foundation engineering to improve ground and the bearing capacity on basis, especially
It is suitable for applying in the building and infrastructure projects on unstable soil layer or Soft Soil Layer, prestressed concrete pipe pile passes through
The load of building is transferred on the stable rock stratum of underground, so as to support building, it is ensured that its safety.
In view of integrated cost, prestressed concrete pipe pile because bearing capacity of single pile is high, tube pile construction speed is fast, work efficiency is high
The features such as, using more extensive, especially in the foundation engineering of modern architecture, but traditional prismatic tube pile structure
Pre-stressed longitudinal reinforced is elongated arrangement of reinforcement, and is uiform section intensity, in terms of stress, because the distribution of soil pressure is along foundation depth
Change, and soil property can also produce influence in different soils, universal law is all compared along component length upper and lower part stress
Small, in bearing load, the local pressure in the middle of component is maximum and uneven, and is to ensure that each position of pile tube can bear lotus
Carry, the section of pile tube must is fulfilled for the requirement at maximum weighted position.Therefore, prismatic tube pile structure economical rationality not to the utmost, and
There is waste of material.
The content of the invention
Technical problem solved by the invention is to provide a kind of variable cross-section concrete tubular pile, to solve above-mentioned background technology
In shortcoming.
Technical problem solved by the invention is realized using following technical scheme：
A kind of variable cross-section concrete tubular pile, including concrete pile body, and column steel reinforcement cage is formed in the concrete-pile body,
The external diameter of the column steel reinforcement cage is the 2/3 ~ 4/5 of concrete pile body external diameter, and on column steel reinforcement cage outer cylinder along the circumferential direction
Many piece parallel with pile body bus are evenly distributed with through reinforcing bar, in addition, being also spaced on the outer cylinder of the column steel reinforcement cage
Multiple caged anchor ears are provided with, the caged anchor ear is welded in inner side on column steel reinforcement cage, concrete pile body, and its are stretched out in outside
It is bottom laminating concrete pile body, hypotenuse right-angled trapezium directed downwardly to stretch out section of the part on ring of concrete pile body,
Meanwhile, the caged anchor ear is wrapped up entirely through concreting, and concrete-pile pile body is formed with profile and cage on correspondence position
The consistent convex annular stage structure of shape anchor ear.
In the present invention, the outer surface of the column steel reinforcement cage is provided with spiral bar and is coiled in through the outside of reinforcing bar.
In the present invention, the concrete pile body two ends are closed by end plate.
In the present invention, cage-like anchor ear setting height 120 ~ 200mm, external diameter for concrete pile body external diameter 1.2 ~
1.3 again.
In the present invention, the spacing between adjacent annular convex rank is 800 ~ 1500mm.
In the present invention, the reinforcing bar radical that runs through circumferentially disposed on the column steel reinforcement cage outer cylinder is 8 ~ 16
Root, and it is preferred to use HRB400 or HRB335.
In the present invention, the concrete pile body is poured using C80 high performance concretes and formed, and in the concrete-pile
Body surface face scribbles anticracking grout.
Beneficial effect：The present invention by setting the convex rank structure that ring section is right-angled trapezium in concrete pile body, and
Concrete pile body is supported using column steel reinforcement cage, convex rank structure is supported by caged anchor ear, the structure that pile tube has been effectively ensured is whole
Body and rigidity, and concrete pile body can be changed into variable section structure by setting convex rank structure so that bottom pile body part axle
Unnecessary stress around upward convex rank is transferred in convex rank structure, then is born by the section of widening of convex rank structure, with
Adapt to different xial feeds so that its distribution of force is more reasonable, effectively increase stock utilization high.
Brief description of the drawings
Fig. 1 is the single-unit structural representation of present pre-ferred embodiments.
Wherein：1st, concrete pile body；2nd, the outer cage face of steel reinforcement cage；3rd, cage face in steel reinforcement cage；4th, caged anchor ear；5th, through steel
Muscle；6th, spiral bar；7th, annular convex rank.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to a kind of preferred embodiment of Fig. 1 variable cross-section concrete tubular pile, in the present embodiment, including concrete pile body
1, the concrete pile body 1 is poured for C80 high performance concretes and formed, and has one layer of anticracking grout, the coagulation in its external coating
Native pile body 1 is in the spacing formed along along pile body length direction between multiple annular convex ranks 7, adjacent annular convex rank 7
1200mm.Section of the annular convex rank 7 on anchor ring is right-angled trapezium, right-angled trapezium bottom laminating concrete pile body 1
And hypotenuse is down.
In the present embodiment, concrete pile body 1 is force structure, forms column steel reinforcement cage in it, the column steel reinforcement cage
Visible surface in figure includes cage face 3 in cage face 2 outside steel reinforcement cage and steel reinforcement cage, wherein, the outer surface circle in the outer cage face 2 of steel reinforcement cage
The external diameter of a diameter of concrete pile body 1 4/5, and be distributed uniformly and circumferentially outside steel reinforcement cage on cage face 2 and pile body is female
The reinforcing bar of 12 parallel model HRB400 of line is provided with spiral bar 6 through reinforcing bar 5 and is coiled in as through reinforcing bar 5
Through the outside of reinforcing bar 5.Annular convex rank 7 is provided with caged anchor ear 4 as support, these cages in the correspondence position of column steel reinforcement cage
Shape anchor ear 4 is together with the soldering of cage face 3 in the outer cage face 2 of the steel reinforcement cage of column steel reinforcement cage and steel reinforcement cage, its cross sectional shape and chi
It is very little to match with annular convex rank 7, it is highly 180mm, and external diameter is 1.2 times of the external diameter of concrete pile body 1.
In addition, in the present embodiment, the two ends of concrete pile body 1 are additionally provided with end plate, and concrete pile body 1 passes through end plate
Closed in both sides, and column steel reinforcement cage is integrated at two ends with end plate soldering so that concrete pile body 1 keeps phase with end plate
To fixation.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. column steel reinforcement cage is formed in a kind of variable cross-section concrete tubular pile, including concrete pile body, the concrete-pile body, its
It is characterised by, the external diameter of the column steel reinforcement cage is the 2/3 ~ 4/5 of concrete pile body external diameter, and edge on column steel reinforcement cage outer cylinder
Circumferencial direction is evenly distributed with many piece parallel with pile body bus through reinforcing bar, in addition, in the outer cylinder of the column steel reinforcement cage
On be also arranged at intervals with multiple caged anchor ears, the caged anchor ear is welded in inner side on column steel reinforcement cage, outside stretch out concrete
Pile body, and its to stretch out section of the part on ring of concrete pile body directed downwardly for bottom laminating concrete pile body, hypotenuse
Right-angled trapezium, meanwhile, the caged anchor ear is wrapped up entirely through concreting, and concrete-pile pile body is formed with correspondence position
The profile convex annular stage structure consistent with caged anchor ear.
2. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the outer surface of the column steel reinforcement cage is set
Spiral bar is equipped with to be coiled in through the outside of reinforcing bar.
3. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the concrete pile body two ends pass through end
Plate is closed.
4. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the setting height of cage-like anchor ear
120~200mm。
5. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the external diameter of cage-like anchor ear is coagulation
1.2 ~ 1.3 times of native pile body external diameter.
6. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the spacing between adjacent annular convex rank
For 800 ~ 1500mm.
7. variable cross-section concrete tubular pile according to claim 1, it is characterised in that edge on the column steel reinforcement cage outer cylinder
The reinforcing bar radical that runs through of circumferential directions is 8 ~ 16.
8. variable cross-section concrete tubular pile according to claim 1, it is characterised in that through reinforcing bar model HRB400 or
HRB335。
9. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the concrete pile body is high using C80
Performance concrete, which is poured, to be formed.
10. variable cross-section concrete tubular pile according to claim 1, it is characterised in that the concrete pile body surface is scribbled
Anticracking grout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710598291.2A CN107268606A (en) | 2017-07-21 | 2017-07-21 | A kind of variable cross-section concrete tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710598291.2A CN107268606A (en) | 2017-07-21 | 2017-07-21 | A kind of variable cross-section concrete tubular pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268606A true CN107268606A (en) | 2017-10-20 |
Family
ID=60078425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710598291.2A Pending CN107268606A (en) | 2017-07-21 | 2017-07-21 | A kind of variable cross-section concrete tubular pile |
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| Country | Link |
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| CN (1) | CN107268606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898508A (en) * | 2019-04-08 | 2019-06-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | From wedging type pipe pile connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952134Y (en) * | 2006-09-15 | 2007-09-26 | 周兆弟 | Hoop reinforcement pipe pile |
| CN201517210U (en) * | 2009-07-17 | 2010-06-30 | 孙平平 | Concrete wedge-shaped post with ribs |
| CN102825658A (en) * | 2012-08-27 | 2012-12-19 | 中淳高科桩业股份有限公司 | Inner/outer die double wall body type steel die for pre-stressed concrete special-shaped pile |
| KR101331218B1 (en) * | 2013-05-03 | 2013-11-20 | 김학진 | Skin friction force and end bearing capacity reinforced multi section type pre-tensioned spun high strength concrete pile |
| CN204570676U (en) * | 2015-04-02 | 2015-08-19 | 宁波大学 | A kind of convex tooth pile tube |
| KR101588619B1 (en) * | 2014-12-12 | 2016-02-12 | (주)에스앤제이케이 | Phc pile with longitudinal confine effect and the construction method therefor |
| CN205576896U (en) * | 2016-05-11 | 2016-09-14 | 金陵科技学院 | That can effectively reduce engineering cost takes steel reinforcement cage construction hole stake |
-
2017
- 2017-07-21 CN CN201710598291.2A patent/CN107268606A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952134Y (en) * | 2006-09-15 | 2007-09-26 | 周兆弟 | Hoop reinforcement pipe pile |
| CN201517210U (en) * | 2009-07-17 | 2010-06-30 | 孙平平 | Concrete wedge-shaped post with ribs |
| CN102825658A (en) * | 2012-08-27 | 2012-12-19 | 中淳高科桩业股份有限公司 | Inner/outer die double wall body type steel die for pre-stressed concrete special-shaped pile |
| KR101331218B1 (en) * | 2013-05-03 | 2013-11-20 | 김학진 | Skin friction force and end bearing capacity reinforced multi section type pre-tensioned spun high strength concrete pile |
| KR101588619B1 (en) * | 2014-12-12 | 2016-02-12 | (주)에스앤제이케이 | Phc pile with longitudinal confine effect and the construction method therefor |
| CN204570676U (en) * | 2015-04-02 | 2015-08-19 | 宁波大学 | A kind of convex tooth pile tube |
| CN205576896U (en) * | 2016-05-11 | 2016-09-14 | 金陵科技学院 | That can effectively reduce engineering cost takes steel reinforcement cage construction hole stake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898508A (en) * | 2019-04-08 | 2019-06-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | From wedging type pipe pile connector |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |
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