CN202787252U - Partially prestressed concrete hollow triangular pile - Google Patents
Partially prestressed concrete hollow triangular pile Download PDFInfo
- Publication number
- CN202787252U CN202787252U CN 201220394533 CN201220394533U CN202787252U CN 202787252 U CN202787252 U CN 202787252U CN 201220394533 CN201220394533 CN 201220394533 CN 201220394533 U CN201220394533 U CN 201220394533U CN 202787252 U CN202787252 U CN 202787252U
- Authority
- CN
- China
- Prior art keywords
- pile body
- pile
- prestressed concrete
- partially prestressed
- main muscle
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a partially prestressed concrete hollow triangular pile which comprises a concrete pile body, reinforcing-bars and stirrups. The reinforcing-bars comprise prestressed tendons and non-prestressed tendons, and are distributed inside the pile body in a surrounding mode along the vertical direction. The peripheral cross section of the pile body is a triangle, and a central through hole penetrating through the whole pile body is arranged in the pile body along the vertical axis direction. The number of the reinforcing-bars arranged in the pile body is from 9 to 36, wherein the number of the prestressed tendons is from 3 to 12, and the number of the non-prestressed tendons is from 6 to 24 and is twice as large as the number of the prestressed tendons. The partially prestressed concrete hollow triangular pile has the advantages that the surface area of the pile body is effectively increased, so that the friction of the side of the pile body is increased and the bearing capacity of the pile body is improved. Corners are molded easily during molding of the pile body, so that stress concentration can be effectively eliminated and the construction pile-forming rate can be effectively improved. The stretchability of the pile body is good during product manufacturing, and the integrity of the pile body is effectively improved. After construction pile-forming, the bearing capacity of a pile is big, bending resistance and shearing resistance are good, and shock resistance is strong.
Description
Technical field
The utility model belongs to building field, relates to the improvement of foundation pile shape and structure in the building field, is the hollow triangle stake of a kind of partially prestressed concrete specifically.
Background technology
The building materials of foundation pile engineering are more on market, if any pile tube, all kinds of square pile, castinplace pile, drilled pile etc.These pilings mainly are divided into non-prestressed member and prestressed member two large classes.The prestressed member piling comprises, pile tube, centrifugal prestress square pile etc.Their shortcoming is, often fragility is larger, and is shorter from the cracking to the time to rupture, and pile body ductility is relatively poor, causes the moment building collapsing when earthquake occurs, and makes that personnel do not have the sufficient time escape in the building.
Existing concrete prefabricated units cross section is various, and many on the market is square and circular cross-section, and when conduct carrying effect member, its maximum purpose is to improve the pile body bearing capacity that unit materials can provide, thereby economical with materials reduces cost.The very large characteristics of preformed pile are a side and soil interaction, utilize the frictional force between stake and the soil to improve pile body bearing capacity.
Relative and the section ratio surface area less of circular cross-section is not so take advantage at pile tube aspect the raising stake side-friction force; Square pile and soil body frictional force are larger, and the bearing capacity ratio pile tube is good, but solid square pile is heavy, feed consumption is many; Hollow square pile combines the advantage of pile tube and square pile preferably, and outer cross section is square, and interior cross section is circular, can improve a side-friction force comparatively speaking, but its cross section concrete thickness differs, and the frictional force of unit volume material also is not fully exerted.
In the recent period, special-shaped triangular pile also occurs, but reinforcement ratio is lower, pile body globality, shearing resistance bending resistance tensile property are difficult to satisfy the engineering demand of high requirement.
The utility model content
The purpose of this utility model is to provide in a kind of building that loss is few, material-saving, from the hollow triangle stake of the partially prestressed concrete of heavy and light, by employing concrete hollow triangle stake and with continuous in the shape of a spiral being welded on the main muscle of the stirrup of reinforcing cage, it is lower to have overcome conventional art intermediate cam shape stake reinforcement ratio, pile body globality, shearing resistance bending resistance tensile property are difficult to satisfy the deficiency of the engineering demand of high request, thereby realize the purpose of this utility model.
The technical problem that the utility model solves can realize by the following technical solutions:
The hollow triangle stake of a kind of partially prestressed concrete comprises concrete pile body, main muscle and stirrup, and described main muscle is comprised of presstressed reinforcing steel and non-prestressing tendon, and in pile body longitudinally around distribution; The periphery cross section is triangle, it is provided with the central through hole that runs through whole pile body along y direction, and the main muscle quantity that arranges in the described pile body is 9～36, and wherein presstressed reinforcing steel quantity is 3～12, non-prestressing tendon quantity is 6～24, and wherein non-prestressing tendon quantity is 2 times of presstressed reinforcing steels.
In an embodiment of the present utility model, described stirrup is along its length extension, and around the helical structure that is welded on the described main muscle.
In an embodiment of the present utility model, the distribution triangular in shape of described main muscle, main muscle is evenly distributed on leg-of-mutton three fillet summits and the sideline.
In an embodiment of the present utility model, the periphery cross section of described pile body is the fillet triangle.
In an embodiment of the present utility model, interior all cross sections of described pile body are the fillet triangle.
In an embodiment of the present utility model, described pile body is identical in the interior periphery cross section geometry of whole y direction.
In an embodiment of the present utility model, described pile body two ends are provided with hoop reinforcement.
The beneficial effects of the utility model are:
Effectively raise the surface area of pile body, thereby improve the frictional force of pile body side, and then improve the bearing capacity of pile body; Corner is easy to moulding in the pile body moulding, and it is concentrated effectively to eliminate stress, and can effectively improve construction pile rate; Pile body ductility is good in the production, effectively raises the globality of pile body, and bearing capacity of single pile is large behind the construction pile, the bending resistance shear behavior is good, shock resistance is strong.
Description of drawings
Fig. 1 is the elevation of the hollow triangle stake of partially prestressed concrete described in the utility model.
Fig. 2 is the sectional view of the hollow triangle stake of partially prestressed concrete described in the utility model.
Fig. 3 is the top view of the hollow triangle stake of partially prestressed concrete described in the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
As depicted in figs. 1 and 2, the hollow triangle stake of partially prestressed concrete described in the utility model is made of pile body 2, the first main muscle 1a, the second main muscle 1b and stirrup 3, the periphery cross section of pile body 2 is the uniform fillet triangle that is provided with fillet 4, and interior all cross sections also are the fillet triangle; The geometric center of pile body 2 cross sections is provided with central through hole 5, the first main muscle 1a is by a prestress steel bar construction, in pile body, longitudinally arrange, be evenly distributed on three summits of triangle stake, the second main muscle 1b is made of 2 non-prestressed rod irons, and is evenly distributed on three limits of triangle pile body; Stirrup 3 extends along its length, and encircles around being welded on around the first main muscle 1a, the second main muscle 1b in the shape of a spiral.
The first main muscle 1a, the second main muscle 1b and the stirrup 3 common reinforcing cages that form, concrete 6 is distributed in the inside and outside both sides of reinforcing cage, and the stake end of pile body 2 is provided with the encrypted area of stirrup 3.
The utility model effectively raises the surface area of pile body, thereby improves the frictional force of pile body 2 sides, and then improves the bearing capacity of pile body 2; Corner is easy to moulding in the forming process of pile body 2, and it is concentrated effectively to eliminate stress, and can effectively improve construction pile rate; The ductility of pile body 2 is good in the production, effectively raises the globality of pile body, and pile body 2 bearing capacities are large behind the construction molding, the bending resistance shear behavior is good, shock resistance is strong.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. the hollow triangle stake of partially prestressed concrete comprises concrete pile body, main muscle and stirrup, and described main muscle is comprised of presstressed reinforcing steel and non-prestressing tendon, and in pile body longitudinally around distribution; The periphery cross section is triangle, it is provided with the central through hole that runs through whole pile body along y direction, it is characterized in that, the main muscle quantity that arranges in the described pile body is 9～36, wherein presstressed reinforcing steel quantity is 3～12, non-prestressing tendon quantity is 6～24, and wherein non-prestressing tendon quantity is 2 times of presstressed reinforcing steels.
2. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that, described stirrup is along its length extension, and around the helical structure that is welded on the described main muscle.
3. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that, the distribution triangular in shape of described main muscle, and main muscle is evenly distributed on leg-of-mutton three fillet summits and the sideline.
4. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that the periphery cross section of described pile body is the fillet triangle.
5. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that interior all cross sections of described pile body are the fillet triangle.
6. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that, described pile body is identical in the interior periphery cross section geometry of whole y direction.
7. the hollow triangle stake of partially prestressed concrete according to claim 1 is characterized in that described pile body two ends are provided with hoop reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394533 CN202787252U (en) | 2012-08-09 | 2012-08-09 | Partially prestressed concrete hollow triangular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394533 CN202787252U (en) | 2012-08-09 | 2012-08-09 | Partially prestressed concrete hollow triangular pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787252U true CN202787252U (en) | 2013-03-13 |
Family
ID=47814534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394533 Expired - Fee Related CN202787252U (en) | 2012-08-09 | 2012-08-09 | Partially prestressed concrete hollow triangular pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202787252U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526771A (en) * | 2013-10-22 | 2014-01-22 | 青海省电力设计院 | Transformer substation reactor foundation applicable to high-altitude permafrost areas |
| CN108301407A (en) * | 2018-04-17 | 2018-07-20 | 安徽省建筑科学研究设计院 | A kind of hybrid reinforcement prestressing force support pile group and construction method |
| CN108330988A (en) * | 2018-04-17 | 2018-07-27 | 安徽省建筑科学研究设计院 | A kind of polygon foundation pit supporting construction and construction method |
-
2012
- 2012-08-09 CN CN 201220394533 patent/CN202787252U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526771A (en) * | 2013-10-22 | 2014-01-22 | 青海省电力设计院 | Transformer substation reactor foundation applicable to high-altitude permafrost areas |
| CN108301407A (en) * | 2018-04-17 | 2018-07-20 | 安徽省建筑科学研究设计院 | A kind of hybrid reinforcement prestressing force support pile group and construction method |
| CN108330988A (en) * | 2018-04-17 | 2018-07-27 | 安徽省建筑科学研究设计院 | A kind of polygon foundation pit supporting construction and construction method |
| CN108301407B (en) * | 2018-04-17 | 2023-08-25 | 安徽省建筑科学研究设计院 | Mixed reinforcement prestress support pile group and construction method |
| CN108330988B (en) * | 2018-04-17 | 2023-10-27 | 安徽省建筑科学研究设计院 | Polygonal foundation pit supporting structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102704471A (en) | Prestress solid concrete preformed pile | |
| CN202787252U (en) | Partially prestressed concrete hollow triangular pile | |
| CN202730755U (en) | H-shaped support pile | |
| CN201915400U (en) | Prestressed solid square pile | |
| CN202610797U (en) | Prestress solid concrete precast pile | |
| CN202850018U (en) | Partial pre-stress concrete hollow triangular pile | |
| CN202787238U (en) | Improved concrete hollow rounded corner triangular pile | |
| CN202718097U (en) | Rounded-triangular and solid post-grouted concrete pile | |
| CN202787250U (en) | Pre-tensioning method prestress solid pile | |
| CN202718108U (en) | Hollow and rounded-triangular pretensioned prestressing concrete pile | |
| CN202718109U (en) | Hollow and rounded-triangular pretensioned prestressing concrete pile | |
| CN202718111U (en) | Pre-tensioning-method prestressed fillet triangular solid pile | |
| CN202718112U (en) | Rounded-triangular and solid pretensioned prestressing concrete pile | |
| CN202718091U (en) | Hollow and rounded-triangular concrete pile | |
| CN202718092U (en) | Hollow and rounded-triangular concrete pile | |
| CN202718098U (en) | Post grouting concrete triangular pile with filleted corners | |
| CN202718087U (en) | Post-grouting hollow rounded triangular pile | |
| CN202718095U (en) | Hollow and chamfered-triangular concrete pile | |
| CN202718114U (en) | Rounded-triangular and solid post-grouted and pretensioned concrete pile | |
| CN202718099U (en) | Improved hollow and rounded-triangular post-grouted concrete pile | |
| CN202787239U (en) | Reinforced concrete hollow fillet triangular pile | |
| CN202718090U (en) | Concrete hollow rounded triangular pile | |
| CN202718089U (en) | Post-grouting concrete hollow rounded triangular pile | |
| CN202672145U (en) | Prestressed triangular pile | |
| CN202767066U (en) | High-performance partially prestressed concrete square pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |