CN202073111U - Connection structure of a concrete pile and a bearing platform - Google Patents
Connection structure of a concrete pile and a bearing platform Download PDFInfo
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- CN202073111U CN202073111U CN2011201365527U CN201120136552U CN202073111U CN 202073111 U CN202073111 U CN 202073111U CN 2011201365527 U CN2011201365527 U CN 2011201365527U CN 201120136552 U CN201120136552 U CN 201120136552U CN 202073111 U CN202073111 U CN 202073111U
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Abstract
The utility model provides a connection structure of a concrete pile and a bearing platform, comprising a concrete pile, a basis bearing platform, an end plate, a connection steel jacket, a deformed bar and a stretching screw hole, wherein the pile top of the concrete pile is connected with the basis bearing platform, the end surface of the pile top of the concrete pile is provided with an end plate, the end plate is provided with the stretching screw hole, the connection steel jacket is arranged in the stretching screw hole and connected with the deformed bar. The connection structure is suitable for the situation that: after accomplishing the concrete pile construction, the real scale height of the pile top is equal to or lower than the designed scale height, the range comprises all the concrete tubular piles and square piles, the concrete precast piles and filling piles, the concrete solid piles and the hollow piles. The connection between the concrete pile and the bearing platform is ensured and the connection structure is safer and more reliable and avoids the defect of the prior technology that the pull-out capacity is born only by core concrete. The pull-out resistance capacity is commonly born by an external deformed steel bar and an interpolated steel bar in the core concrete are used to commonly bear the pull-out capacity, thus the building basis is more reliable and safer.
Description
Technical field
The utility model relates to a kind of construction technology of building pile foundation engineering, is specifically related to the syndeton of a kind of concrete pile and cushion cap.
Background technology
Along with the raising of the significance level of modern building and the continuous increase of building height, the supporting capacity of ground is had higher requirement.The concrete pile foundation of building construction in the past mainly bears the vertical compression load, but present many pile foundations then will be born vertical compression load and vertical tension load simultaneously.More existing in recent years engineerings require to reduce under the pressure promotion of construction costs the investor, and concrete pile is applied in the anti-floating engineering, use as uplift pile.Stake has been made clear and definite regulation with being connected of cushion cap when only concrete pile being made compressive pile or pressure bearing pile on prior art rules or the atlas, but does not make clear and definite regulation when the uplift pile yet for concrete pile.The method of attachment that is used for the concrete pile of resistance to plucking engineering and cushion cap at present mainly is to form the core concrete of filling out of certain-length by go into concrete that reinforcing cage waters certain volume simultaneously toward stake interpolation chamber, be connected with cushion cap and realize being connected of stake and cushion cap by filling out core concrete and stake bonding of inwall and reinforcing bar, realize that the basic while of preformed pile stake top and cushion cap is stressed.There is more problem in this method, as: the stake inner cavity water accumulation is serious, and inwall mud can't be cleaned out, and it is wayward that construction trouble causes filling out the core concrete construction quality, core concrete often occurs filling out and is pulled out and influences the resistance to plucking quality and cause engineering problem etc.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, safe and reliable, convenient and quick construction, the concrete pile of saving construction costs and the syndeton of cushion cap are provided.
The technical solution of the utility model is: the syndeton of a kind of concrete pile and cushion cap, comprise concrete pile, foundation platform, end plate, connection steel bushing, indented bars and stretching screw hole, the stake top of described concrete pile is connected with foundation platform, the stake top end face of concrete pile is provided with end plate, end plate is provided with the stretching screw hole, the connection steel bushing is installed in the stretching screw hole, and this connects steel bushing and is connected with indented bars.
As preferably, described connection steel bushing comprises punching internal thread and external screw thread, described indented bars one end is provided with screw thread, this screw thread connects with the punching internal thread that is connected steel bushing, the external screw thread that connects steel bushing is connected with the stretching screw hole, the size in described externally threaded size and stretching screw hole is suitable, and the size of described punching internal thread and described screw thread is suitable.Described connection steel bushing is cylindrical shape, and height is greater than end plate thickness and must not be less than 15mm, connects the material of steel bushing, the diameter and the quantity of internal thread is determined according to the demand of engineering design.
As preferably, the diameter of described indented bars screw thread, the material of reinforcing bar and quantity determine that according to the requirement of engineering design material can adopt HRB335 or HRB400 reinforcing bar.Hoop " ┐ " or vertical-type outwardly can be processed in described indented bars top.
As preferably, when described concrete pile is hollow pile, the utility model syndeton also comprises reinforcing cage and fills out core concrete, described reinforcing cage is arranged in the cavity of concrete pile, reinforcing cage is made up of the thin steel supporting plate of vertical muscle (promptly filling out core concrete interpolation reinforcing bar), stirrup and circle, the thin steel supporting plate of described circle is connected the bottom of vertical muscle, has built in the cavity of the concrete pile of the thin steel supporting plate of circle top and has filled out core concrete, and the end face of end plate is stretched out in the upper end of described vertical muscle.
As preferably, the described core concrete of filling out adopts slightly expanded concrete, and filling out core concrete intensity is C10 ~ C80, fills out core length and be pile tube stake footpath or side's stake length of side of 0.5 times pile tube stake footpath or the stake length of side ~ 20, side times, and fills out core length and be not less than 0.5m.
As preferably, the diameter of the thin steel supporting plate of described circle is less than or equal to the length of side of diameter or side's stake inner chamber of pile tube inner chamber, and the thin steel supporting plate thickness of circle is not less than 2mm.The length of described vertical muscle upper end is determined that by design hoop " ┐ " shape or vertical configuration outwardly is processed on vertical muscle top, and the quantity of vertical muscle is 4 ~ 30, and diameter is 6mm ~ 50mm, and the diameter of described stirrup is more than or equal to 3mm, and the spacing of stirrup is 40mm ~ 400mm.
The utility model structure is applicable to when concrete pile construction is finished stake top, a back actual elevation and is equal to or less than design elevation, and scope comprises all concrete tubular piles and side, concrete precast pile and castinplace pile, concrete solid pile and hollow pile.
Job practices of the present utility model is: the reinforcing cage that at first will be welded with the thin steel supporting plate of circle is put in the inner chamber of concrete pile, the connection steel bushing of some is installed on the stretching screw hole of concrete pile end plate then, the indented bars that will be connected with the cushion cap basis is installed in and connects on the steel bushing again, the realization end plate is connected with indented bars, pour into a mould slightly expanded concrete at last to the inner chamber of stake, form reinforcing bar and fill out core concrete; Core concrete to be filled out is poured into a mould ordinary concrete to the cushion cap basis that is connected with stake after reaching certain intensity again, thus final the realization being connected of stake and cushion cap basis.
The beneficial effects of the utility model are: 1, guaranteed being connected between concrete pile and the cushion cap, and more safe and reliable.Abandon to only depend in the past and fill out core concrete and bear uplift resistance, adopt the external screw-thread reinforcing bar and the interpolation reinforcing bar filled out in the core concrete is born uplift resistance jointly, make that the building foundation is stable more, safety.
2, simple in structure, convenient and quick construction.Do not need pile body is cut stake, as long as the connection steel bushing of some is installed in the place, stretching screw hole of concrete pile pile crown end plate, the reinforcing bar that the some of screwing on the connection steel bushing simultaneously is connected with cushion cap gets final product, saved time of having constructed and engineering comprehensive cost, connected steel bushing and design definite according to concrete requirement of engineering with the quantity of cushion cap connecting reinforcement.
3, improved the concrete pile foundation construction quality, reduced the phenomenon that causes cushion cap to separate because of buoyancy is excessive, effectively avoided the generation of engineering safety accident, significantly reduced engineering safety hidden danger with stake.
4, applied widely.Applicable to the bigger more piece stake of anti-pulling capacity, also be applicable to the single-unit stake that uplift resistance is less.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an AA overlooking surface schematic diagram among Fig. 1;
Fig. 3 is a connection steel bushing structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Shown in Fig. 1,2 and 3: the syndeton of a kind of concrete pile and cushion cap, comprise concrete pile 1, foundation platform 2, end plate 6, connect steel bushing 7, indented bars 8 and stretching screw hole 9, the stake top of described concrete pile 1 is connected with foundation platform 2, the stake top end face of concrete pile 1 is provided with end plate 6, end plate 6 is provided with stretching screw hole 9, connection steel bushing 7 is installed in the stretching screw hole 9, and this connects steel bushing 7 and is connected with indented bars 8.
Described connection steel bushing 7 comprises punching internal thread 71 and external screw thread 72, described indented bars 8 one ends are provided with screw thread, this screw thread connects with the punching internal thread 71 that is connected steel bushing 7, the external screw thread 72 that connects steel bushing 7 is connected with stretching screw hole 9, the size in the size of described external screw thread 72 and stretching screw hole 9 is suitable, and described punching internal thread 71 is suitable with the size of described screw thread.
Described concrete pile 1 is a hollow pile, the utility model syndeton also comprises reinforcing cage 3 and fills out core concrete 4, described reinforcing cage 3 is arranged in the cavity of concrete pile 1, reinforcing cage 3 is made up of the thin steel supporting plate 5 of vertical muscle 32, stirrup 31 and circle, the thin steel supporting plate 5 of described circle is connected the bottom of vertical muscle 32, built in the cavity of the concrete pile 1 of thin steel supporting plate 5 tops of circle and filled out core concrete 4, the end face of end plate 6 is stretched out in the upper end of described vertical muscle 32.
Cut-off footpath 500mm, the prestressed concrete resistance to plucking pile tube of wall thickness 100mm is connected with foundation platform.
Described reinforcing cage 3 diameters are 230mm, and the length of the vertical muscle 32 of this reinforcing cage 3 is that 3.6m, diameter are 12mm, and quantity is 8; The diameter of stirrup 31 is 6mm, and stirrup spacing is 100mm, and hoop " ┐ " outwardly is processed on vertical muscle 32 tops; Described circle approaches the thick 4 ~ 5mm of being of steel supporting plate, diameter is 298 ~ 300mm.
8 connection steel bushings 7 are installed on the stretching screw hole 9 of described end plate 6, and the punching internal thread 71 that connects steel bushing 7 is 12mm, highly is 50mm; The external screw thread 72 that connects steel bushing 7 highly is 24mm; Described indented bars 8 is the HRB400 indented bars, and quantity is 8, and diameter is 12mm, long is 450mm, be installed in respectively on 8 connection steel bushings, vertical-type is processed on indented bars 8 tops, has realized being connected of end plate 6 and indented bars 8;
Describedly fill out core concrete 4 to adopt intensity be the C40 slightly expanded concrete, filling out core length is 3m.
Claims (9)
1. the syndeton of concrete pile and cushion cap, it is characterized in that: comprise concrete pile (1), foundation platform (2), end plate (6), connect steel bushing (7), indented bars (8) and stretching screw hole (9), the stake top of described concrete pile (1) is connected with foundation platform (2), the stake top end face of concrete pile (1) is provided with end plate (6), end plate (6) is provided with stretching screw hole (9), connection steel bushing (7) is installed in the stretching screw hole (9), and this connects steel bushing (7) and is connected with indented bars (8).
2. the syndeton of a kind of concrete pile according to claim 1 and cushion cap, it is characterized in that: described connection steel bushing (7) comprises punching internal thread (71) and external screw thread (72), described indented bars (8) one ends are provided with screw thread, this screw thread connects with the punching internal thread (71) that is connected steel bushing (7), the external screw thread (72) that connects steel bushing (7) is connected with stretching screw hole (9), the size of the size of described external screw thread (72) and stretching screw hole (9) is suitable, and described punching internal thread (71) is suitable with the size of described screw thread.
3. the syndeton of a kind of concrete pile according to claim 1 and cushion cap is characterized in that: described connection steel bushing (7) is cylindrical shape, and height is greater than end plate thickness and must not be less than 15mm.
4. the syndeton of a kind of concrete pile according to claim 1 and cushion cap is characterized in that: described indented bars (8) screw thread material adopts HRB335 or HRB400 reinforcing bar.
5. the syndeton of a kind of concrete pile according to claim 1 and cushion cap is characterized in that: hoop " ┐ " or vertical-type outwardly is processed on described indented bars (8) top.
6. the syndeton of a kind of concrete pile according to claim 1 and cushion cap, it is characterized in that: described concrete pile (1) is a hollow pile, the syndeton of described concrete pile and cushion cap also comprises reinforcing cage (3) and fills out core concrete (4), described reinforcing cage (3) is arranged in the cavity of concrete pile (1), reinforcing cage (3) is by vertical muscle (32), the thin steel supporting plate (5) of stirrup (31) and circle is formed, the thin steel supporting plate (5) of described circle is connected the bottom of vertical muscle (32), built in the cavity of the concrete pile (1) of the thin steel supporting plate (5) of circle top and filled out core concrete (4), the end face of end plate (6) is stretched out in the upper end of described vertical muscle (32).
7. the syndeton of a kind of concrete pile according to claim 6 and cushion cap, it is characterized in that: the described core concrete (4) of filling out adopts slightly expanded concrete, filling out core concrete (4) intensity is C10 ~ C80, fill out core length and be pile tube stake footpath or side's stake length of side of 0.5 times pile tube stake footpath or the stake length of side ~ 20, side times, and fill out core length and be not less than 0.5m.
8. the syndeton of a kind of concrete pile according to claim 6 and cushion cap is characterized in that: the diameter of the thin steel supporting plate (5) of described circle is less than or equal to the length of side of diameter or side's stake inner chamber of pile tube inner chamber, and thin steel supporting plate 5 thickness of circle are not less than 2mm.
9. the syndeton of a kind of concrete pile according to claim 6 and cushion cap, it is characterized in that: hoop " ┐ " shape or vertical configuration outwardly is processed on described vertical muscle (32) top, the quantity of vertical muscle (32) is 4 ~ 30, diameter is 6mm ~ 50mm, the diameter of described stirrup (31) is more than or equal to 3mm, and the spacing of stirrup (31) is 40mm ~ 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201365527U CN202073111U (en) | 2011-05-04 | 2011-05-04 | Connection structure of a concrete pile and a bearing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201365527U CN202073111U (en) | 2011-05-04 | 2011-05-04 | Connection structure of a concrete pile and a bearing platform |
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| Publication Number | Publication Date |
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| CN202073111U true CN202073111U (en) | 2011-12-14 |
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| CN2011201365527U Expired - Lifetime CN202073111U (en) | 2011-05-04 | 2011-05-04 | Connection structure of a concrete pile and a bearing platform |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912792A (en) * | 2012-10-25 | 2013-02-06 | 李文颖 | In-situ hexagonal or octagonal tube-sinking cast-in-situ concrete hollow pile and producing method thereof |
| CN103924617A (en) * | 2014-03-21 | 2014-07-16 | 刘献刚 | Underground space building pile shaft construction method and underground space building structure |
| CN104452792A (en) * | 2014-11-19 | 2015-03-25 | 上海市政工程设计研究总院（集团）有限公司 | Built-in structure for high-pile base pile foundation |
| CN104695459A (en) * | 2013-12-10 | 2015-06-10 | 江苏建华管桩有限公司 | Connection method of concrete precast pile and pile foundation cap |
| CN104818726A (en) * | 2015-05-21 | 2015-08-05 | 上海市城市建设设计研究总院 | Connecting structure of steel pipe pile and reinforced concrete bearing platform |
| CN106703092A (en) * | 2017-03-13 | 2017-05-24 | 兰州铁道设计院有限公司 | Connecting structure and method for foundation piles and bearing platform in pile foundation underpinning |
| CN106988333A (en) * | 2017-05-11 | 2017-07-28 | 江苏中大建设集团有限公司 | The prefabricated cushion cap and its construction technology of core are filled with joint bar |
| CN108265744A (en) * | 2018-03-13 | 2018-07-10 | 国家电网公司 | A kind of connection structure of overhead transmission line PHC pipe pile foundations foundation pile and cushion cap |
| CN110777834A (en) * | 2019-10-30 | 2020-02-11 | 融兴建设集团有限公司 | Connection structure of assembled building pile foundation and cushion cap |
| CN114197461A (en) * | 2021-12-09 | 2022-03-18 | 中国十七冶集团有限公司 | Construction method for preventing grouting of core-filling concrete of prestressed hollow square pile |
-
2011
- 2011-05-04 CN CN2011201365527U patent/CN202073111U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912792A (en) * | 2012-10-25 | 2013-02-06 | 李文颖 | In-situ hexagonal or octagonal tube-sinking cast-in-situ concrete hollow pile and producing method thereof |
| CN104695459A (en) * | 2013-12-10 | 2015-06-10 | 江苏建华管桩有限公司 | Connection method of concrete precast pile and pile foundation cap |
| CN103924617A (en) * | 2014-03-21 | 2014-07-16 | 刘献刚 | Underground space building pile shaft construction method and underground space building structure |
| CN104452792A (en) * | 2014-11-19 | 2015-03-25 | 上海市政工程设计研究总院（集团）有限公司 | Built-in structure for high-pile base pile foundation |
| CN104452792B (en) * | 2014-11-19 | 2023-05-26 | 上海市政工程设计研究总院（集团）有限公司 | Embedding structure for pile foundation of high pile foundation |
| CN104818726A (en) * | 2015-05-21 | 2015-08-05 | 上海市城市建设设计研究总院 | Connecting structure of steel pipe pile and reinforced concrete bearing platform |
| CN106703092A (en) * | 2017-03-13 | 2017-05-24 | 兰州铁道设计院有限公司 | Connecting structure and method for foundation piles and bearing platform in pile foundation underpinning |
| CN106988333A (en) * | 2017-05-11 | 2017-07-28 | 江苏中大建设集团有限公司 | The prefabricated cushion cap and its construction technology of core are filled with joint bar |
| CN106988333B (en) * | 2017-05-11 | 2023-10-10 | 江苏九如建设有限公司 | Prefabricated bearing platform with dowel bar filling core and construction process thereof |
| CN108265744A (en) * | 2018-03-13 | 2018-07-10 | 国家电网公司 | A kind of connection structure of overhead transmission line PHC pipe pile foundations foundation pile and cushion cap |
| CN110777834A (en) * | 2019-10-30 | 2020-02-11 | 融兴建设集团有限公司 | Connection structure of assembled building pile foundation and cushion cap |
| CN114197461A (en) * | 2021-12-09 | 2022-03-18 | 中国十七冶集团有限公司 | Construction method for preventing grouting of core-filling concrete of prestressed hollow square pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212413 Jiangsu Jianhua pipe pile Co., Ltd. of Zhenjiang Town, Jurong City, Jiangsu Province Patentee after: Jianhua building materials (Jiangsu) Co., Ltd. Address before: 212413 Jiangsu Jianhua pipe pile Co., Ltd. of Zhenjiang Town, Jurong City, Jiangsu Province Patentee before: Jiangsu builds China pipe pile Co., Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 212413 the development zone along the Yangtze River in Xia Shu Town, Jurong City, Zhenjiang, Jiangsu Patentee after: Jianhua building materials (China) Co., Ltd. Address before: 212413 Jianjiang pipe pile Co., Ltd., Jiangsu, Jiangsu, Zhenjiang, Jurong Patentee before: Jianhua building materials (Jiangsu) Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |