CN214940085U - Reinforced structure at pile splicing part of prestressed concrete pipe pile - Google Patents
Reinforced structure at pile splicing part of prestressed concrete pipe pile Download PDFInfo
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- CN214940085U CN214940085U CN202120557181.3U CN202120557181U CN214940085U CN 214940085 U CN214940085 U CN 214940085U CN 202120557181 U CN202120557181 U CN 202120557181U CN 214940085 U CN214940085 U CN 214940085U
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- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 25
- 238000003466 welding Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 19
- 238000005452 bending Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a reinforced structure of prestressed concrete pipe pile extension, the reinforced structure comprises a plurality of built-in embedded parts (5) which are arranged in a pipe pile hoop (3) and are distributed in an annular shape and external welding steel bars (10) when adjacent pipe piles (1) are fixedly butted, a plurality of annular stirrups (6) are arranged on the side part of the built-in embedded parts (5), and the plurality of built-in embedded parts (5) are bound by the annular stirrups (6) to form a built-in embedded part sleeve (7); the outer side part of the built-in embedded part (5) is fixed with the tubular pile hoop (3), the inner side part of the built-in embedded part (5) is fixed with the reinforcement cage (2), and the bottom of the built-in embedded part (5) is fixed with the end plate (4). The utility model discloses when guaranteeing construction wholeness and quality, the bending resistance shearing capacity of butt joint pile body end plate junction when improving the construction tubular pile extension solves the quality problems that current prestressed concrete tubular pile easily destroys or the broken pile in the pile extension work progress.
Description
Technical Field
The utility model relates to a ground and foundation engineering field, in particular to additional strengthening of prestressed concrete tubular pile extension department.
Background
The prestressed concrete pipe pile is a precast concrete pile which embodies the technological progress of the concrete and the high and new technological level of concrete products. The prestressed concrete pipe pile plays an important part in the construction engineering pile foundation market. The precast concrete tubular pile mainly comprises a circular pile body, a pile head and a pile shoe, and is characterized by being capable of bearing larger load, firm, durable and fast in construction speed.
The engineering field usually adopts a welded joint mode to connect an upper tubular pile and a lower tubular pile. The tubular pile needs to be driven into the ground in the construction process, but in the construction process of pile driving, because the welding strength of the existing end plate is insufficient, the end plate at the tubular pile connecting position is broken or even broken due to various reasons, and the reason for the end plate at the tubular pile connecting position being broken or broken may have the following aspects: 1. under the condition of complex geological conditions in the piling process, the pile body is easy to incline and deviate, and the pile body is influenced by larger bending moment and shearing force; 2. the construction operation is improper, the upper pipe pile and the lower pipe pile are not completely aligned, and the pipe piles are influenced by eccentric pressure in the piling process; 3. the construction site is generally operated in the open air, and is easily influenced by bad weather such as rain, wind and the like in the welding process, the welding seam quality is not easy to guarantee, and the quality hidden danger is buried in the spliced pile. The original construction method of the pile splicing part cannot meet the requirements of the pile body on the influences of eccentric compression, bending and shearing, so that the end plate at the pile splicing part is easy to break or even breaks, and the construction scheme of the pile splicing part of the prestressed concrete pipe pile needs further strengthening design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reinforced structure of prestressed concrete tubular pile extension department. The utility model discloses when guaranteeing construction wholeness and quality, the bending resistance shear capacity of welding end plate department when improving the construction tubular pile extension solves the quality problems that current precast concrete tubular pile extension easily destroys or the broken pile.
The technical scheme of the utility model: the utility model provides a reinforced structure of prestressed concrete tubular pile extension department, is fixed with the outside welding reinforcing bar when adjacent tubular pile butt joint including setting up the built-in fitting sleeve in the tubular pile, the extension department of tubular pile is equipped with tubular pile hoop, its characterized in that: the built-in embedded part sleeve consists of a plurality of built-in embedded parts which are distributed in an annular shape and a plurality of annular stirrups which are arranged in a tubular pile hoop, and the plurality of built-in embedded parts are bound by the annular stirrups to form a whole; the outer side part of the built-in embedded part is fixed with the tubular pile hoop, the inner side part of the built-in embedded part is fixed with the reinforcement cage, and the bottom of the built-in embedded part is fixed with the end plate; and the external welding steel bar is fixed with the built-in embedded part and the tubular pile hoop at the end part of the adjacent tubular pile by welding.
In the reinforcing structure at the pile splicing position of the prestressed concrete pipe pile, the built-in embedded part comprises a lower layer frame and an upper layer frame which are adjacent and fixed, the lower layer frame is arranged inside the pipe pile hoop, and the outer side part of the lower layer frame is tightly attached and fixed with the inner side part of the pipe pile hoop; the outside portion setting of upper frame is in the top of tubular pile cover hoop outside portion.
Aforementioned additional strengthening of prestressed concrete tubular pile extension department, the outside portion of upper frame flush with tubular pile stake cover hoop outside portion, the inside portion of upper frame flushes with the inside portion of lower floor's frame.
Aforementioned additional strengthening of prestressed concrete tubular pile department, upper frame indulge muscle, the horizontal muscle of top layer, inner circle and the horizontal muscle of well layer and enclose synthetic rectangle framework by the upper strata outside, lower floor's frame indulge muscle, the horizontal muscle of bottom, inner circle and indulge the muscle and the horizontal muscle of well layer and enclose synthetic rectangle framework by the lower floor outside.
In the reinforcing structure at the pile splicing position of the prestressed concrete pipe pile, the outer end parts of the top layer transverse bar, the upper layer outer longitudinal bar and the middle layer transverse bar are exposed outwards, and the external welding reinforcing steel bars are welded and fixed with the outer end parts of the top layer transverse bar, the upper layer outer longitudinal bar and the middle layer transverse bar which are exposed outwards.
In the reinforcing structure at the pile splicing position of the prestressed concrete pipe pile, the annular stirrups sequentially pass through the upper outer ring stirrup, the upper inner ring stirrup, the middle outer ring stirrup, the middle inner ring stirrup, the lower outer ring stirrup and the lower inner ring stirrup on each built-in embedded part; the upper layer outer ring stirrup is wound at the outer end of the upper part of the inner ring of the upper layer frame, and the upper layer inner ring stirrup is wound at the inner end of the upper part of the inner ring of the upper layer frame; the middle layer outer ring stirrup is wound at the outer end of the lower part of the inner ring of the upper layer frame; the middle-layer inner ring stirrup is wound at the inner end of the lower part of the inner ring of the upper-layer frame; the lower outer ring stirrup is wound at the outer end of the lower part of the inner ring of the lower frame; and the lower-layer inner ring stirrup is wound at the inner end of the lower part of the inner ring of the lower-layer frame.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model comprises a plurality of built-in embedded parts which are distributed in a ring shape and are arranged in a pipe pile hoop, and external welding steel bars when adjacent pipe piles are butted and fixed, wherein a plurality of ring-shaped stirrups are arranged on the side part of the built-in embedded parts, the ring-shaped stirrups bind the built-in embedded parts to form a built-in embedded part sleeve, the outer side part of the built-in embedded parts is fixed with the pipe pile hoop, the inner side part of the built-in embedded parts is fixed with a steel reinforcement cage, and the bottom of the built-in embedded parts is fixed with an end plate; and further, adjacent tubular piles are fixedly butted, external welding steel bars are arranged at the pile connecting positions of the adjacent tubular piles, and the external welding steel bars and the built-in embedded part exposed steel bars of the adjacent tubular piles and the tubular pile hoops are fixedly welded together. The utility model discloses a pile extension department at the tubular pile sets up additional strengthening, and the bending resistance shear capacity of butt joint pile body end plate junction when improving the construction tubular pile extension solves the quality problems of current prestressed concrete tubular pile easy destruction or disconnected stake in pile extension work progress, in addition the utility model discloses still have simple manufacture, installation convenient to use, with low costs and the good characteristics of construction effect.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a schematic view of the connection of a built-in embedment sleeve with a reinforcement cage and an end plate.
Fig. 4 is a structural schematic diagram of a tubular pile hoop and an end plate;
FIG. 5 is a schematic view of the welding of the pipe pile connecting position;
FIG. 6 is a schematic structural view of a built-in embedment.
1. A tubular pile; 2. a reinforcement cage; 3. a tubular pile hoop; 4. an end plate; 5. embedding an embedded part; 6. a ring-shaped stirrup; 7. a built-in embedded part sleeve is arranged inside; 8. a lower layer frame; 9. an upper layer frame; 10. welding reinforcing steel bars outside; 20. the upper layer is provided with an outer ring stirrup; 21. the upper inner ring is hooped; 22. a middle layer outer ring stirrup; 23. hooping of the middle inner ring; 24. the lower layer of outer ring hoop reinforcement; 25. the lower inner ring hoop reinforcement; 81. the lower layer is provided with outer longitudinal ribs; 82. a bottom layer transverse rib; 91. the upper layer is provided with outer longitudinal ribs; 92. a top layer transverse rib; 93. inner ring longitudinal ribs; 94. the middle layer is provided with transverse ribs.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Example (b): the utility model provides a reinforced structure of prestressed concrete tubular pile extension department, as shown in figure 1 and figure 3, sets up in current tubular pile 1, and 1 inside steel reinforcement cage 2 that is equipped with of tubular pile, steel reinforcement cage 2 comprises steel reinforcement cage stirrup and the vertical muscle of steel reinforcement cage, and the extension department including tubular pile 1 is equipped with tubular pile hoop 3, and the tip of tubular pile 1 is equipped with end plate 4. As shown in attached drawings 2 and 3, the reinforcing structure comprises a plurality of built-in embedded parts 5 which are distributed in an annular shape and arranged in a tubular pile hoop 3, the outer side parts of the built-in embedded parts 5 are welded and fixed with the tubular pile hoop 3, and the inner side parts of the built-in embedded parts 5 are fixed with a reinforcement cage 2 through binding or welding. The built-in embedded part 5 comprises a lower layer frame 8 and an upper layer frame 9 which are adjacent and fixed, and the bottom of the built-in embedded part 5 is welded and fixed with the end plate 4. As shown in fig. 6, the upper frame 9 is a rectangular frame surrounded by upper outer longitudinal ribs 91, top transverse ribs 92, inner longitudinal ribs 93 and middle transverse ribs 94, and the lower frame 8 is a rectangular frame surrounded by lower outer longitudinal ribs 81, bottom transverse ribs 82, inner longitudinal ribs 93 and middle transverse ribs 94. The diameter of the steel bar used by the upper layer outer longitudinal bar 91, the top layer transverse bar 92, the inner ring longitudinal bar 93, the middle layer transverse bar 94, the lower layer outer longitudinal bar 81 and the bottom layer transverse bar 82 is 8-12 mm, and the steel bar is a waste steel bar head and is reused after being reprocessed. The number of the built-in embedded parts is adjusted according to the actual diameter of the tubular pile, and one embedded part is generally arranged between two prestressed reinforcement holes. The built-in embedded part 5 is generally in a shape of being wide at the top and narrow at the bottom, the length of the middle-layer transverse rib 94 is equal to the vertical distance from the outside of the existing reinforcement cage to the outer wall of the tubular pile, and because the tubular pile hoop 3 has a certain structural thickness, the bottom-layer transverse rib of the built-in embedded part is shorter than the middle-layer transverse rib by the thickness of one tubular pile hoop, the top-layer transverse rib is equal to the middle-layer transverse rib in length, and the length of the lower-layer outer longitudinal rib is equal to the height of the tubular pile hoop. The length of the longitudinal ribs of the inner ring is equal to the length of the outer longitudinal ribs of the upper layer and the outer longitudinal ribs of the lower layer. The length of the upper outer longitudinal bar is 10-15 cm, and the outer end portions of the top layer transverse bar, the upper outer longitudinal bar and the middle layer transverse bar are exposed reinforcing steel bars and are used for subsequent welding construction. Therefore, the outer side of the upper layer frame 9 is flush with the outer side of the tubular pile hoop 3, and the inner side of the upper layer frame 9 is flush with the inner side of the lower layer frame 8. The lower layer frame 8 is arranged inside the tubular pile hoop 3, and the outer side part of the lower layer frame 8 is tightly attached and fixed with the inner side part of the tubular pile hoop 3; the outer side part of the upper layer frame 9 is arranged above the outer side part of the tubular pile hoop 3. The number of the built-in embedded parts is adjusted according to the actual diameter of the tubular pile, and one embedded part is generally arranged between the prestressed reinforcement holes of the two end plates. As shown in fig. 2 and 3, a plurality of annular stirrups 6 are arranged on the side of the built-in embedded part 5 in a penetrating manner, and the annular stirrups 6 bind the built-in embedded parts 5 to form a built-in embedded part sleeve 7; the annular stirrups 6 comprise upper-layer outer ring stirrups 20, upper-layer inner ring stirrups 21, middle-layer outer ring stirrups 22, middle-layer inner ring stirrups 23, lower-layer outer ring stirrups 24 and lower-layer inner ring stirrups 25 which sequentially penetrate through each built-in embedded part 5; wherein the upper layer outer ring stirrup 20 is wound at the outer end of the upper part of the inner ring of the upper layer frame 9, and the upper layer inner ring stirrup 21 is wound at the inner end of the upper part of the inner ring of the upper layer frame; the middle layer outer ring stirrup 22 is wound at the outer end of the lower part of the inner ring of the upper layer frame 9; the middle-layer inner ring stirrup 23 is wound at the inner end of the lower part of the inner ring of the upper-layer frame 9; the lower outer ring stirrup 24 is wound at the outer end of the lower part of the inner ring of the lower frame 8; and the lower-layer inner ring stirrup 25 is wound at the inner end of the lower part of the inner ring of the lower-layer frame 8. The built-in embedded part sleeve 7 is beneficial to improving the integral connection strength and reliability of the pile splicing part of the prestressed concrete pipe pile. The radius of the inner ring of the embedded part sleeve 7 is slightly larger than that of the reinforcement cage, so that the construction operability is improved.
Further, as shown in fig. 5, when the adjacent tubular piles 1 are butted and fixed, the external welding steel bars 10 are arranged at the butted positions of the adjacent tubular piles 1, and the external welding steel bars 10 are welded and fixed together with the exposed steel bars of the embedded parts 5 in the adjacent tubular piles and the tubular pile hoops 3. The outer end parts of the top layer transverse ribs 92, the upper layer outer longitudinal ribs 91 and the middle layer transverse ribs 94 are exposed outwards, and the outer welding reinforcing steel bars 10 are welded and fixed with the outer end parts of the exposed top layer transverse ribs 92, the upper layer outer longitudinal ribs 91 and the middle layer transverse ribs 94.
The working principle is as follows: when pile splicing construction is carried out, exposed steel bar positions of all built-in embedded parts 5 of the upper and lower two sections of tubular piles 1 and the end plates 4 are vertically aligned at the same time, and then the upper and lower two sections of tubular piles 1 are fully welded at the end plates 4. Accomplish preliminary welding back, go on again the outside reinforcing bar welding that exposes of pile body of two sections tubular pile 1 from top to bottom with pile body outside welding reinforcing bar 10 respectively with the outer tip of the horizontal muscle 92 of the top layer of the exposed built-in embedded part 5 of two sections tubular pile tip, the outer tip of the outer muscle 91 of indulging of upper outer layer, the horizontal muscle 94 of middle level and the tubular pile cuff 3 of two sections tubular pile 1 carries out two-sided full weld one by one from top to bottom, makes the outer tip of the horizontal muscle 92 of embedded part top layer of two sections tubular pile, the outer lane built-in embedded part upper layer indulge the muscle 91, the outer tip of the horizontal muscle 94 of middle level and the tubular pile cuff 3 of tubular pile form a additional strengthening's whole. In particular, the steel bar 10 welded outside the pile body is preferably round steel, the downward end of the round steel is polished in advance by a polishing machine, and the lower end of the round steel is polished into an oblique tip or a pen point shape, so that the friction force between the steel bar and the soil layer during construction is reduced.
The utility model discloses have intensity height, with low costs, simultaneously, the sustainable development requirement that the material used accords with green low carbon environmental protection, preparation simple process, construction effect are good, have improved the bending resistance shear strength of prestressed concrete pipe pile extension department greatly, economical and practical.
Claims (6)
1. The utility model provides a reinforced structure of prestressed concrete tubular pile department of taking over a pile, is fixed outside welded reinforcement (10) including built-in fitting sleeve (7) and adjacent tubular pile (1) butt joint that set up in tubular pile (1), the department of taking over a pile of tubular pile (1) is equipped with tubular pile hoop (3), its characterized in that: the built-in embedded part sleeve (7) consists of a plurality of built-in embedded parts (5) which are distributed in an annular shape and are arranged in the pipe pile hoop (3) and a plurality of annular stirrups (6), and the plurality of built-in embedded parts (5) are bound by the annular stirrups (6) to form a whole; the outer side part of the built-in embedded part (5) is fixed with the tubular pile hoop (3), the inner side part of the built-in embedded part (5) is fixed with the reinforcement cage (2), and the bottom of the built-in embedded part (5) is fixed with the end plate (4); the external welding steel bar (10) is fixed with the built-in embedded part (5) and the tubular pile hoop (3) at the end part of the adjacent tubular pile (1) by welding.
2. A reinforcing structure at a prestressed concrete pipe pile extension according to claim 1, wherein: the built-in embedded part (5) comprises a lower layer frame (8) and an upper layer frame (9) which are adjacent and fixed, the lower layer frame (8) is arranged inside the tubular pile hoop (3), and the outer side part of the lower layer frame (8) is tightly attached and fixed with the inner side part of the tubular pile hoop (3); the outer side part of the upper layer frame (9) is arranged above the outer side part of the tubular pile hoop (3).
3. A reinforcing structure at a prestressed concrete pipe pile extension according to claim 2, wherein: the outer side of the upper layer frame (9) is flush with the outer side of the tubular pile hoop (3), and the inner side of the upper layer frame (9) is flush with the inner side of the lower layer frame (8).
4. A reinforcing structure at a prestressed concrete pipe pile extension according to claim 2, wherein: the upper frame (9) is a rectangular frame body formed by surrounding upper outer longitudinal ribs (91), top transverse ribs (92), inner ring longitudinal ribs (93) and middle transverse ribs (94), and the lower frame (8) is a rectangular frame body formed by surrounding lower outer longitudinal ribs (81), bottom transverse ribs (82), inner ring longitudinal ribs (93) and middle transverse ribs (94).
5. A reinforcing structure at a prestressed concrete pipe pile extension according to claim 4, wherein: the outer end parts of the top layer transverse rib (92), the upper layer outer longitudinal rib (91) and the middle layer transverse rib (94) are exposed outwards, and the outer welding steel bar (10) is fixed with the outer end part of the top layer transverse rib (92), the outer end parts of the upper layer outer longitudinal rib (91) and the middle layer transverse rib (94) through welding.
6. A reinforcing structure at a prestressed concrete pipe pile extension according to claim 1, wherein: the annular stirrups (6) comprise upper-layer outer ring stirrups (20), upper-layer inner ring stirrups (21), middle-layer outer ring stirrups (22), middle-layer inner ring stirrups (23), lower-layer outer ring stirrups (24) and lower-layer inner ring stirrups (25) which sequentially penetrate through each built-in embedded part (5); wherein the upper layer outer ring stirrup (20) is wound at the outer end of the upper part of the inner ring of the upper layer frame (9), and the upper layer inner ring stirrup (21) is wound at the inner end of the upper part of the inner ring of the upper layer frame; the middle layer outer ring stirrup (22) is wound at the outer end of the lower part of the inner ring of the upper layer frame (9); the middle-layer inner ring stirrup (23) is wound at the inner end of the lower part of the inner ring of the upper-layer frame (9); the lower-layer outer ring stirrup (24) is wound at the outer end of the lower part of the inner ring of the lower-layer frame (8); and the lower-layer inner ring stirrup (25) is wound at the inner end of the lower part of the inner ring of the lower-layer frame (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120557181.3U CN214940085U (en) | 2021-03-16 | 2021-03-16 | Reinforced structure at pile splicing part of prestressed concrete pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120557181.3U CN214940085U (en) | 2021-03-16 | 2021-03-16 | Reinforced structure at pile splicing part of prestressed concrete pipe pile |
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| Publication Number | Publication Date |
|---|---|
| CN214940085U true CN214940085U (en) | 2021-11-30 |
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| CN202120557181.3U Expired - Fee Related CN214940085U (en) | 2021-03-16 | 2021-03-16 | Reinforced structure at pile splicing part of prestressed concrete pipe pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351697A (en) * | 2021-12-06 | 2022-04-15 | 东南大学 | Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof |
-
2021
- 2021-03-16 CN CN202120557181.3U patent/CN214940085U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351697A (en) * | 2021-12-06 | 2022-04-15 | 东南大学 | Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof |
| CN114351697B (en) * | 2021-12-06 | 2023-09-12 | 东南大学 | Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof |
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