CN110453681B - Steel strand concrete pile and manufacturing method thereof - Google Patents
Steel strand concrete pile and manufacturing method thereof Download PDFInfo
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- CN110453681B CN110453681B CN201910469287.5A CN201910469287A CN110453681B CN 110453681 B CN110453681 B CN 110453681B CN 201910469287 A CN201910469287 A CN 201910469287A CN 110453681 B CN110453681 B CN 110453681B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 157
- 239000010959 steel Substances 0.000 title claims abstract description 157
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- 230000002787 reinforcement Effects 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 210000003205 muscle Anatomy 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
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- 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
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
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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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to a pretensioned centrifugal concrete pile with steel strands, which comprises a concrete pile body and a steel reinforcement cage, wherein the steel reinforcement cage comprises prestressed main reinforcements, stirrups and end plates, and is characterized in that: the prestress main reinforcement is a steel strand, a plurality of tapered holes with gradually enlarged hole diameters from inside to outside are formed in at least one end plate, the tapered holes are arranged in one-to-one correspondence with the steel strand, a plurality of clamping pieces are placed in each tapered hole, clamping teeth are arranged on the inner surfaces of the clamping pieces, the clamping pieces are spliced to form a clamping head assembly for clamping the steel strand, the outer peripheral surface of the clamping head assembly forms a cone surface matched with the tapered holes, an inner tooth hole is formed in the center of the clamping head assembly, and each steel strand penetrates through the inner tooth hole in the corresponding clamping head assembly and is locked by the inner tooth hole. It is a practical centrifugal concrete pile with steel strands. The invention also relates to a manufacturing method of the centrifugal concrete pile.
Description
Technical Field
The invention belongs to the technical field of pile foundation engineering of various building structure systems, and particularly relates to a concrete pile with steel strands and a manufacturing method of the concrete pile.
Background
Because of the high tensile strength of the steel strand (the design value of the tensile strength is 1320MPa, and the highest tensile strength can reach 1960 MPa), in recent years, enterprises and scientific research institutions in China also carry out a great deal of research on the application of the steel strand to centrifugal concrete piles, and a mature technical scheme is formed at present.
The Chinese patent application No. ZL201410035992.1 (publication No. CN 103741674B) discloses a pretensioned centrifugal concrete pile with steel strands and a manufacturing method thereof, wherein the manufacturing method comprises the following steps of
(1) Cutting the steel strand at fixed length;
(2) Manufacturing a reinforcement cage;
(3) Each steel strand on the reinforcement cage is connected and fixed with the end plate through a clamping piece assembly positioned in a conical hole on the end plate;
(4) Feeding to the lower half mould and closing the upper half mould;
(5) And tensioning each steel strand respectively.
(6) Centrifugal molding;
(7) Steam curing;
(8) Removing the mould, and simultaneously removing the connection between the anchoring plate and the end plate for releasing;
(9) Cutting off and polishing the steel strands exposed out of the end plate, so that the steel strands are not exposed out of the outer end surface of the end plate.
The traditional steel reinforcement cage adopts the seam welder to carry out the seam welding preparation, but the seam welder is only suitable for making the steel reinforcement cage of traditional bar as the main muscle, and the steel reinforcement cage that has the steel strand wires is unsuitable to adopt the seam welder to carry out the seam welding, and the steel reinforcement cage includes the prestressing force main muscle of axial arrangement and around the stirrup of putting outside the main muscle, and the prestressing force main muscle is the steel strand wires, and the fixed in order to adopt manual ligature to be the main between stirrup and the steel strand wires, and the coiling mode of stirrup is more consuming time, inefficiency.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide the steel strand concrete pile aiming at the defects of the prior art, and the steel reinforcement cage in the concrete pile adopts a unique design, so that the steel reinforcement cage has the advantages of convenient manufacture and high production efficiency, and provides possibility for automatic manufacture of the steel reinforcement cage.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a steel strand concrete pile comprises a concrete pile body and a plurality of steel strands arranged in the concrete pile body, wherein the steel strands are axially arranged along the concrete pile body; the method is characterized in that: the concrete pile body is internally provided with stirrups and constructional ribs, the stirrups encircle and are fixed on the constructional ribs to form a cage-shaped framework with a certain length in the axial direction, and the cage-shaped framework is sleeved on the steel stranded wires as an integral member.
Preferably, the stirrup and the steel strand are not connected. The connectionless relation here means that no binding, clamping, welding or other intermediate auxiliary parts or intermediate connecting parts are adopted between the two parts to connect the two parts with each other. The stirrup is wound around the periphery of the flexible steel strand wires more quickly and conveniently, and the structural frame (namely the reinforcement cage) in the pile body is finally formed, so that the production efficiency is greatly improved.
For being convenient for connect steel strand wires and pile extension, above-mentioned concrete pile body one end is equipped with the end plate at least, and the end plate is provided with a plurality of locking holes, and the steel strand wires pass through the retaining member locking in the locking hole, there is not connection between constructional muscle and the end plate for in the process of stretch-draw steel strand wires constructional muscle is not stretched.
Further improved, the stirrups can be fixed with end plates of the concrete pile body or connecting pieces arranged on the end plates. When the steel strand is stretched, the stirrups of the deformed stirrup sections can be synchronously stretched, so that the stirrups with equivalent density at the end part of the pile body are ensured, and the mechanical property of the pile body is ensured
Further improvement, the cage-shaped framework is provided with a deformed stirrup section which can extend in the axial direction at a part close to the end part of the concrete pile body, and stirrups on the deformed stirrup section can be fixed with an end plate of the concrete pile body or a connecting piece arranged on the end plate. Thus being beneficial to the axial expansion of the deformed stirrup section during tensioning.
Preferably, before the steel strand is tensioned, a first spacing between two adjacent hoops of the deformed hoops is smaller than a second spacing between two adjacent hoops in other portions of the cage frame. When the steel strand is tensioned, the stirrups of the deformed stirrup sections are axially expanded together, so that the density of the stirrups wound outside the whole steel strand is as consistent as possible.
Preferably, the stirrups of the deformed stirrup sections of the cage frame are not connected and fixed with the constructional ribs, and the stirrups of other parts of the cage frame are fixed with the constructional ribs. The stirrup is convenient to fix, and the axial expansion of the stirrups of the deformed stirrup section is also convenient.
The structural bars are axially arranged, and at least six reinforcing bars are arranged. Six steel bars are convenient to form a circular cage.
One or more cage frameworks are sleeved on the steel stranded wires. The cage-shaped framework can be one section sleeved on the steel stranded wire, or two sections sleeved on the steel stranded wire respectively in the axial direction and spliced together, and a plurality of cage-shaped frameworks are suitable for being adopted if the length of the concrete pile is long.
Further, the first cross-section caliber of the cage-shaped framework is larger than the second cross-section caliber of the framework surrounded by the steel strands. The structure can prevent the cage-shaped framework from generating radial outward expansion force when the steel strand is tensioned, so that the cage-shaped framework cannot be deformed, the direction of the tensioning force of the straight line of the steel strand cannot be changed, and the mechanical property of the pile body cannot be influenced.
The second technical problem to be solved by the invention is to provide a manufacturing method of the steel strand concrete pile with reasonable and simple manufacturing procedures.
The invention solves the second technical problem by adopting the technical proposal that: the steel strand pile comprises a concrete pile body, an end plate and a steel reinforcement cage positioned in the concrete pile body, wherein the steel reinforcement cage comprises a plurality of steel strands which are axially arranged and stirrups which radially surround, and the steel strands are steel strands, and the manufacturing method is characterized by comprising the following manufacturing steps:
1) Cutting the steel strand at fixed length;
2) Manufacturing a reinforcement cage, namely taking a plurality of constructional ribs as a framework, encircling and fixing stirrups on the constructional ribs to form a cage-shaped framework with a certain length in the axial direction, and sleeving the cage-shaped framework as an integral member outside a framework surrounded by a plurality of steel strands;
3) And installing the end plates, penetrating the steel strands of the reinforcement cage into a plurality of locking holes on the end plates one by one, and fixedly connecting the steel strands with the end plates through locking pieces placed in the locking holes.
4) And placing the reinforcement cage with the end plate in a mould for feeding, closing the mould and stretching the steel strand.
5) And centrifugally molding or vibrating the die after the feeding and stretching.
6) And demolding the cured mold.
The first manufacturing method is suitable for manufacturing the steel strand concrete pile with the end plates at the two ends. The manufacturing method is stretch-draw, so that the manufacturing of the pretensioned centrifugal concrete pile is possible, and the method has the advantages of simple and smooth manufacturing process and low manufacturing cost, and good connection performance can be formed among the steps.
The cage-shaped framework is provided with a deformed stirrup section which can extend in the axial direction at a part close to the end part of the concrete pile body, and stirrups on the deformed stirrup section can be matched with end plates of the concrete pile body in the step 3.
Before the steel strand is stretched, the distance between two adjacent hoops of the deformed hoops is smaller than the distance between two adjacent hoops in other parts of the cage-shaped framework.
The first cross-section caliber of the cage-shaped framework is larger than the second cross-section caliber of the framework surrounded by the steel strands.
The second technical scheme adopted by the invention for solving the second technical problem is as follows: the steel strand pile comprises a concrete pile body and a steel reinforcement cage positioned in the concrete pile body, wherein the steel reinforcement cage comprises a plurality of steel strands which are axially arranged and stirrups which radially surround, and the steel strands are steel strands, and the method is characterized by comprising the following manufacturing steps:
1) Cutting the steel strand at fixed length;
2) Manufacturing a reinforcement cage, taking a plurality of constructional ribs as a framework, encircling and fixing stirrups on the constructional ribs to form a cage-shaped framework with a certain length in the axial direction, and sleeving the cage-shaped framework as an integral member outside a framework surrounded by a plurality of steel strands;
3) Tensioning the steel strand: placing the reinforcement cage in a mould, connecting the steel strands one by one on tensioning devices at two ends of the mould, feeding the steel strands into the mould, closing the mould, and tensioning the steel strands;
4) And centrifugally molding or vibrating the die after the feeding and stretching.
5) And demolding the cured mold.
The second manufacturing method is suitable for manufacturing the steel strand concrete pile without the end plates at the two ends.
Compared with the prior art, the pretensioned centrifugal concrete pile has the advantages that: the concrete pile body is internally provided with stirrups and constructional ribs, the stirrups encircle and are fixed on the constructional ribs to form a cage-shaped framework with a certain length in the axial direction, and the cage-shaped framework is sleeved on the steel stranded wires as an integral member. The reinforcement cage adopting the structure does not need to bind and fix stirrups on the steel strands, during manufacturing, the cage-shaped framework is firstly prepared by the seam welder, mechanical preparation can be realized by the cage-shaped framework, and during the preparation of the reinforcement cage, the cage-shaped framework is only required to be sleeved on a plurality of steel strands which are axially arranged, so that the manufacturing method of the reinforcement cage is effectively simplified, the production efficiency is improved, in addition, the additionally added constructional ribs in the cage-shaped framework can increase the strength of the concrete pile, and the bending resistance, shearing resistance and tensile resistance of the concrete pile are further improved.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 3, a preferred embodiment of the steel strand concrete pile of the present invention is shown.
The steel strand concrete pile comprises a concrete pile body 1 and a plurality of steel strands 2 arranged in the concrete pile body 1, wherein the steel strands 2 are axially arranged along the concrete pile body 1; at least one end of the concrete pile body 1 in this embodiment is provided with an end plate 3, the end plate 3 is provided with a plurality of locking holes 31, the steel strand 3 is locked in the locking holes 31 by the locking members 4, and the mode that the steel strand 3 is locked in the locking holes 31 by the locking members 4 can refer to the background patent.
The concrete pile body 1 is also internally provided with stirrups 7 and constructional ribs 5, the constructional ribs 5 and the end plates 3 are not connected, the connectionless relation here means that the constructional ribs 5 are not fixed on the end plates 3 (the way of being fixed on the end plates 3, such as the pier heads at the end parts of the constructional ribs 5 are sunk in counter bores on the end plates 3, or the constructional ribs 5 are fixed on the end plates 3 through locking parts), so that the constructional ribs 5 are not stretched in the process of stretching the steel stranded wires 2, the constructional ribs 5 are steel bars which are axially arranged, and the number of the steel bars is at least six. The stirrup 7 surrounds and is fastened to the structural reinforcement 5 to form a cage 6 having a certain length in the axial direction, the cage 6 being fitted as a one-piece component over the steel strand 2.
There is no connection between stirrup 7 and steel strand 2. The connectionless relation here means that no binding, clamping, welding or other intermediate auxiliary parts or intermediate connecting parts are adopted between the two parts to connect the two parts with each other.
The cage frame 6 has a section 61 of deformed stirrup extending in the axial direction near the end of the concrete pile 1, the stirrup 7 on the section 61 being fixable to the end plate 3 of the concrete pile 1 or to a connection provided on the end plate 3. Before the steel strands 2 are tensioned, a first spacing s1 between two adjacent hoops 7 of the deformed stirrup section 61 is smaller than a second spacing s2 between two adjacent hoops 2 in other parts of the cage frame 8.
The stirrups 7 of the deformed stirrup sections 61 of the cage frame 6 are not connected and fixed with the constructional ribs 5, while the stirrups 7 of other parts of the cage frame 6 are fixed with the constructional ribs 5.
The cage frame 6 sleeved on the steel strand 2 can be one or a plurality of. The cage 6 in this embodiment has only one
The first cross-sectional diameter D1 of the cage 6 is larger than the second cross-sectional diameter D2 of the frame enclosed by the steel strands 1.
The reinforcement cage adopting the structure does not need to bind and fix stirrups on the steel strands, during manufacturing, the cage-shaped framework is firstly prepared by the seam welder, mechanical preparation can be realized by the cage-shaped framework, and during the preparation of the reinforcement cage, the cage-shaped framework is only required to be sleeved on a plurality of steel strands which are axially arranged, so that the manufacturing method of the reinforcement cage is effectively simplified, the production efficiency is improved, in addition, the additionally added constructional ribs in the cage-shaped framework can increase the strength of the concrete pile, and the bending resistance, shearing resistance and tensile resistance of the concrete pile are further improved.
The centrifugal concrete pile with the steel strands can be used as a pole body of a telegraph pole, can also be used as a ground supporting rod in a telecommunication base station and a wind power generation system, and can also be used as a supporting body of other ground engineering, and the application range and the scene are extremely wide.
The steel strand concrete pile according to the foregoing embodiment may be manufactured by the following manufacturing method.
The steel strand concrete pile comprises a concrete pile body 1, an end plate 3 and a steel reinforcement cage positioned in the concrete pile body 1, wherein the steel reinforcement cage comprises a plurality of steel strands 2 axially arranged and stirrups 7 radially encircling, and the steel strands 2 are steel strands, and the method is characterized in that
The method comprises the following manufacturing steps:
1. cutting the steel strand 2 to a fixed length;
2. manufacturing a reinforcement cage, taking a plurality of constructional ribs 5 as a framework, encircling and fixing stirrups 21 on the constructional ribs 5 to form a cage-shaped framework 6 with a certain length in the axial direction, and sleeving the cage-shaped framework 6 as an integral component outside the framework surrounded by the plurality of steel strands 2;
3. and installing the end plate 3, penetrating the steel strands 3 of the reinforcement cage into a plurality of locking holes 31 on the end plate 3 one by one, and fixedly connecting the steel strands with the end plate 3 through locking pieces 4 arranged in the locking holes 31.
4. And placing the steel reinforcement cage with the end plate 3 in a mould for feeding, closing the mould and stretching the steel stranded wires 2.
5. And (5) centrifugally molding or vibrating the die after the feeding and stretching.
6. And demolding the cured mold.
The following manufacturing method can be adopted for manufacturing the steel strand concrete pile without the end plate.
The steel strand pile comprises a concrete pile body 1 and a steel reinforcement cage positioned in the concrete pile body 1, wherein the steel reinforcement cage comprises a plurality of steel strands 2 which are axially arranged and stirrups 2 which radially surround, and the steel strands are steel strands 3, and is characterized in that
The method comprises the following manufacturing steps:
1. cutting the steel strand 2 to a fixed length;
2. manufacturing a reinforcement cage, taking a plurality of constructional ribs as a framework, encircling and fixing stirrups 7 on the constructional ribs to form a cage-shaped framework 6 with a certain length in the axial direction, and sleeving the cage-shaped framework 6 as an integral component outside the framework surrounded by the plurality of steel strands 3;
3. stretching the steel strand: placing the reinforcement cage in a mould, connecting the steel strands 2 one by one on tensioning devices at two ends of the mould, feeding and folding the mould into the mould, and tensioning the steel strands 2;
4. and (5) centrifugally molding or vibrating the die after the feeding and stretching.
5. And demolding the cured mold.
Claims (11)
1. The steel strand concrete pile comprises a concrete pile body (1) and a plurality of steel strands (2) arranged in the concrete pile body (1), wherein the steel strands (2) are axially arranged along the concrete pile body (1); the method is characterized in that: the concrete pile body (1) is internally provided with stirrups (7) and constructional ribs (5), the stirrups (7) encircle and are fixed on the constructional ribs (5) to form a cage-shaped framework (6) with a certain length in the axial direction, and the cage-shaped framework (6) is sleeved on the steel stranded wires (2) as an integral member.
At least one end of the concrete pile body (1) is provided with an end plate (3), a section of deformed stirrup section (61) which can extend in the axial direction is arranged at the part of the cage-shaped framework (6) close to the end part of the concrete pile body (1), and stirrups (7) on the deformed stirrup section (61) can be fixed with the end plate (3) of the concrete pile body (1) or a connecting piece arranged on the end plate (3); the stirrups (7) of the deformed stirrup sections (61) of the cage-shaped framework (6) are not connected and fixed with the constructional ribs (5), and the stirrups (7) of other parts of the cage-shaped framework (6) are fixed with the constructional ribs (5).
2. The steel strand concrete pile according to claim 1, wherein: the stirrup (7) and the steel strand (2) are not connected.
3. The steel strand concrete pile according to claim 1, wherein: the end plate (3) is provided with a plurality of locking holes (31), the steel strands (2) are locked in the locking holes (31) through locking pieces (4), and no connection relation exists between the constructional ribs (5) and the end plate (3), so that the constructional ribs (5) are not stretched in the process of stretching the steel strands (2).
4. A steel strand concrete pile according to claim 3, wherein: the stirrup (7) can be fixed with the end plate (3) of the concrete pile body (1) or a connecting piece arranged on the end plate (3).
5. The steel strand concrete pile according to claim 1, wherein: before the steel strand (2) is tensioned, a first spacing (s 1) between two adjacent hoops (7) of the deformed hoop section (61) is smaller than a second spacing (s 2) between two adjacent hoops (7) in other parts of the cage-shaped framework (6).
6. The steel strand concrete pile according to claim 1, wherein: the structural bars (5) are axially arranged steel bars, and the number of the steel bars is at least six.
7. The steel strand concrete pile according to claim 1, wherein: one or more cage frameworks (6) are sleeved on the steel stranded wires (2).
8. The steel strand concrete pile according to claim 1, wherein: the first cross-section caliber (D1) of the cage-shaped framework (6) is larger than the second cross-section caliber (D2) of the framework surrounded by the steel strands (2).
9. The steel strand concrete pile comprises a concrete pile body (1), end plates (3) and a steel reinforcement cage positioned in the concrete pile body (1), wherein the steel reinforcement cage comprises a plurality of steel strands (2) which are axially arranged and stirrups (7) which radially surround, and the steel strands (2) are steel strands, and the manufacturing method is characterized in that
The method comprises the following manufacturing steps:
1) Cutting the steel strand (2) to a fixed length;
2) Manufacturing a reinforcement cage, taking a plurality of constructional ribs (5) as a framework, encircling and fixing stirrups (7) on the constructional ribs (5) to form a cage-shaped framework (6) with a certain length in the axial direction, and sleeving the cage-shaped framework (6) as an integral component outside a framework surrounded by a plurality of steel strands (2);
3) And installing the end plate (3), penetrating the steel strands (2) of the reinforcement cage into a plurality of locking holes (31) on the end plate (3) one by one, and fixedly connecting the steel strands with the end plate (3) through locking pieces (4) arranged in the locking holes (31).
4) And placing the reinforcement cage provided with the end plate (3) in a mould for feeding, closing the mould, and stretching the steel strand (2).
5) And centrifugally molding or vibrating the die after the feeding and stretching.
6) Demolding the cured mold;
the cage-shaped framework (6) is provided with a deformed stirrup section (61) which can extend in the axial direction at the part close to the end part of the concrete pile body (1), and stirrups (7) on the deformed stirrup section (61) can be matched with the end plate (3) of the concrete pile body (1) in the step 3.
10. The method for manufacturing a steel strand concrete pile according to claim 9, wherein: before the steel strand (1) is stretched, the distance between two adjacent stirrups (2) of the deformed stirrup section (61) is smaller than the distance between two adjacent stirrups (7) in other parts of the cage-shaped framework (6).
11. The method for manufacturing a steel strand concrete pile according to claim 9, wherein: the first cross-section caliber (D1) of the cage-shaped framework (6) is larger than the second cross-section caliber (D2) of the framework surrounded by the steel strands (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469287.5A CN110453681B (en) | 2019-05-31 | 2019-05-31 | Steel strand concrete pile and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469287.5A CN110453681B (en) | 2019-05-31 | 2019-05-31 | Steel strand concrete pile and manufacturing method thereof |
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| CN110453681A CN110453681A (en) | 2019-11-15 |
| CN110453681B true CN110453681B (en) | 2023-12-22 |
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| CN116357017A (en) * | 2021-12-08 | 2023-06-30 | 索泰克(北京)岩土科技有限公司 | Detachable steel reinforcement cage of steel strand wires owner muscle and supporting construction thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0665988A (en) * | 1992-08-21 | 1994-03-08 | Chubu Electric Power Co Inc | Reinforced-concrete columnar body and manufacture thereof |
| JPH08120667A (en) * | 1994-10-21 | 1996-05-14 | Tousen Asano Paul Kk | Prestressed reinforced concrete pile |
| JPH08311867A (en) * | 1995-05-18 | 1996-11-26 | Kensetsu Kiso Eng Co Ltd | Construction method for high stress-proof pile |
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| CN103741674A (en) * | 2014-01-24 | 2014-04-23 | 俞向阳 | Pretensioned centrifugal concrete pile with steel stranded wires and manufacturing method |
| CN104563103A (en) * | 2014-12-30 | 2015-04-29 | 青岛兴河建材有限公司 | Composite-reinforcement partially-prestressed concrete solid square pile and production method thereof |
| CN104652430A (en) * | 2014-12-30 | 2015-05-27 | 青岛昊河水泥制品有限责任公司 | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof |
| CN211143061U (en) * | 2019-05-31 | 2020-07-31 | 俞晓东 | Steel strand concrete pile |
-
2019
- 2019-05-31 CN CN201910469287.5A patent/CN110453681B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0665988A (en) * | 1992-08-21 | 1994-03-08 | Chubu Electric Power Co Inc | Reinforced-concrete columnar body and manufacture thereof |
| JPH08120667A (en) * | 1994-10-21 | 1996-05-14 | Tousen Asano Paul Kk | Prestressed reinforced concrete pile |
| JPH08311867A (en) * | 1995-05-18 | 1996-11-26 | Kensetsu Kiso Eng Co Ltd | Construction method for high stress-proof pile |
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| CN103741674A (en) * | 2014-01-24 | 2014-04-23 | 俞向阳 | Pretensioned centrifugal concrete pile with steel stranded wires and manufacturing method |
| CN104563103A (en) * | 2014-12-30 | 2015-04-29 | 青岛兴河建材有限公司 | Composite-reinforcement partially-prestressed concrete solid square pile and production method thereof |
| CN104652430A (en) * | 2014-12-30 | 2015-05-27 | 青岛昊河水泥制品有限责任公司 | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof |
| CN211143061U (en) * | 2019-05-31 | 2020-07-31 | 俞晓东 | Steel strand concrete pile |
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| CN110453681A (en) | 2019-11-15 |
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