CN102127913B - Method for connecting concrete pile and bearing platform - Google Patents
Method for connecting concrete pile and bearing platform Download PDFInfo
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- CN102127913B CN102127913B CN2011101129158A CN201110112915A CN102127913B CN 102127913 B CN102127913 B CN 102127913B CN 2011101129158 A CN2011101129158 A CN 2011101129158A CN 201110112915 A CN201110112915 A CN 201110112915A CN 102127913 B CN102127913 B CN 102127913B
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Abstract
The invention provides a method for connecting a concrete pile and a bearing platform. The method comprises the following steps of: firstly, measuring the actual pile top elevation of the concrete pile after pile foundation construction is finished; mounting a plurality of connecting steel bushings on tension screw holes of an end plate of the concrete pile when the practical pile top elevation of the concrete pile equals to or is lower than a designed elevation; then, mounting threaded steel bars connected with a basic bearing platform on the connecting steel bushings to realize the connection of the end plate and the threaded steel bars; and casting common concrete on the basic bearing platform connected with the concrete pile so as to realize the connection of the concrete pile and the basic bearing platform; and when the practical pile top elevation of the concrete pile is higher than the designed elevation, truncating the pile, keeping original steel bars and end plate of the pile body after truncation, mounting the end plate of the concrete pile on the heading ends of the steel bars and fixing the end plate in situ with reinforcing ribs to realize the reconnection of the end plate and the steel bars, and casting the common concrete to the basic bearing platform connected the concrete pile so as to realize the connection of the concrete pile and the basic bearing platform.
Description
Technical field
The present invention relates to a kind of construction technology of building pile foundation engineering, be specifically related to the method for attachment 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 force 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.At present when stake top mark height is higher than design elevation; The method of attachment that is used for concrete pile and the cushion cap of resistance to plucking engineering mainly is to insert the chamber in the stake and go into the core concrete of filling out that concrete that reinforcing cage waters certain volume simultaneously forms certain-length through with saw stake device pile body simply being cut after the stake again; Be connected with cushion cap and realize being connected of stake and cushion cap through filling out core concrete and bonding and the reinforcing bar of stake inwall, realize that the basic while of preformed pile stake top and cushion cap is stressed.But there is more problem in this method; As: only dependence is filled out core concrete and is born uplift resistance; And job site environment more complicated even more abominable sometimes can cause an inner cavity water accumulation serious, and inwall mud can't be cleaned out; It is wayward that construction trouble causes filling out the core concrete construction quality, core concrete often occurs filling out and be pulled out and influence the resistance to plucking quality and cause engineering problem etc.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of simple in structure, safe and reliable, convenient and quick construction, the concrete pile of saving construction costs and the method for attachment of cushion cap are provided.
Technical scheme of the present invention is: the method for attachment of a kind of concrete pile and cushion cap may further comprise the steps:
At first after pile foundation construction is accomplished, measure concrete pile stake top actual elevation;
When concrete pile stake top actual elevation is equal to or less than design elevation; A plurality of connection steel bushings are installed on the stretching screw hole of the end plate of concrete pile, and the indented bars that will be connected with foundation platform again is installed in and connects on the steel bushing, and the realization end plate is connected with indented bars; Pour into a mould again ordinary concrete to concrete pile connection basis cushion cap on; Thereby finally realize being connected of concrete pile and foundation platform, the syndeton of this moment comprises concrete pile, foundation platform, end plate, connection steel bushing, indented bars and stretching screw hole, and the stake top of said 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, and the connection steel bushing is installed in the stretching screw hole, and this connects steel bushing and is connected with indented bars;
As preferably; Said connection steel bushing comprises punching internal thread and external screw thread, and said indented bars one end is provided with screw thread, and 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 said externally threaded size and stretching screw hole is suitable, and the size of said punching internal thread and said screw thread is suitable, and said connection steel bushing is cylindrical shape; 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 confirmed according to the demand of engineering design;
As preferably, the diameter of said indented bars screw thread, the material of reinforcing bar and quantity confirm 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 said indented bars top;
, concrete pile stake top actual elevation need cut stake when being higher than design elevation; Cut the stake back and keep an original reinforcing bar of pile body and an end plate, the end plate of concrete pile is installed in the reinforcing bar heading place of reinforcing bar, and with the reinforcing stirrup with its fixed-site; Realize being connected once more of end plate and reinforcing bar; Pour into a mould again ordinary concrete to concrete pile connection basis cushion cap on, thereby realize finally being connected of concrete pile and foundation platform that the syndeton of this moment comprises concrete pile, foundation platform, the hole that is connected, end plate, reinforcing bar, reinforcing stirrup and reinforcing bar heading; The stake top of said concrete pile is connected with foundation platform; Be provided with reinforcing bar in the said concrete pile pile body, the upper surface of concrete pile pile concrete is stretched out in the upper end of reinforcing bar, and said end plate is installed in the reinforcing bar heading place of reinforcing bar; Be provided with the reinforcing stirrup that is used for fixing end plate below the end plate, be evenly equipped with a plurality of holes that are connected that are used for connecting reinforcement on the end face of end plate;
As preferably, the said hole that is connected comprises stretching screw hole and heavy muscle hole, is provided with the muscle groove between said stretching screw hole and the heavy muscle hole, and said reinforcing bar inserts the stretching screw orifice ring and after passing the muscle groove, is connected on the heavy muscle hole;
As preferably, when described concrete pile was hollow pile, method of attachment of the present invention also comprises to be put the reinforcing cage that is connected with the thin steel supporting plate of circle in the inner chamber of concrete pile into, and cast is filled out in the inner chamber of core concrete to concrete pile again, forms reinforcing bar and fills out core concrete; Core concrete to be filled out reach pour into a mould again after certain intensity ordinary concrete to concrete pile connection basis cushion cap on; Thereby finally realize being connected of concrete pile and foundation platform; The syndeton of this moment also comprises reinforcing cage and fills out core concrete; Said reinforcing cage is arranged in the cavity of concrete pile, and reinforcing cage is made up of vertical muscle (promptly fill out and insert reinforcing bar in the core concrete), stirrup and the thin steel supporting plate of circle, and the thin steel supporting plate of circle is arranged on the bottom of vertical muscle; Built in the cavity of the concrete pile of the thin steel supporting plate of circle top and filled out core concrete, the end face of end plate is stretched out in the upper end of said vertical muscle;
As preferably, the said 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 said 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 said vertical muscle upper end is confirmed 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; The diameter of said stirrup is more than or equal to 3mm, and the spacing of stirrup is 40mm ~ 400mm.
The method of attachment scope of application of the present invention comprises all concrete tubular piles and side's stake, concrete precast pile and castinplace pile, concrete solid pile and hollow pile.
The invention has the beneficial effects as follows: 1, guaranteed being connected between concrete pile and the cushion cap, more safe and reliable.Abandon to only depend in the past and fill out core concrete and bear uplift resistance, adopt external screw-thread reinforcing bar or outside reinforcing bar to be connected once more and fill out the system that the interior slotting reinforcing bar in the core concrete forms and come to bear jointly uplift resistance, make that stablize more the building foundation, safety with end plate.
2, simple in structure, save engineering comprehensive and cause.Need to pile body not cut the stake, even perhaps cut the stake do not waste yet to pile body cut the stake after reinforcing bar and end plate, and the realization once more the utilization.
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
Syndeton sketch map when Fig. 1 equals design elevation for stake of the present invention top actual elevation;
Fig. 2 is the face sketch map of bowing of AA among Fig. 1;
Fig. 3 is a connection steel bushing structural representation of the present invention;
Syndeton sketch map when Fig. 4 is higher than design elevation for stake of the present invention top actual elevation;
Fig. 5 is the face sketch map of bowing of AA among Fig. 4;
Fig. 6 is the face sketch map of bowing of BB among Fig. 4.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further:
Like Fig. 1,2,3,4, shown in 5 and 6: the method for attachment of a kind of concrete pile and cushion cap may further comprise the steps:
At first after pile foundation construction is accomplished, measure 1 top actual elevation of concrete pile;
When 1 top actual elevation of concrete pile is equal to or less than design elevation; A plurality of connection steel bushings 7 are installed on the stretching screw hole 9 of the end plate 6 of concrete pile 1, and the indented bars 8 that will be connected with foundation platform 2 again is installed in and connects on the steel bushing 7, and realization end plate 6 is connected with indented bars 8; Pour into a mould again ordinary concrete to concrete pile 1 connection basis cushion cap 2 on; Thereby finally realize being connected of concrete pile 1 and foundation platform 2, the syndeton of this moment comprises concrete pile 1, foundation platform 2, end plate 6, connects steel bushing 7, indented bars 8 and stretching screw hole 9, and the stake top of said 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, is equipped with in the stretching screw hole 9 to connect steel bushing 7, and this connects steel bushing 7 and is connected with indented bars 8;
Said connection steel bushing 7 comprises punching internal thread 71 and external screw thread 72; Said indented bars 8 one ends are provided with screw thread; This screw thread connects with the punching internal thread that is connected steel bushing 7 71; The external screw thread 72 that connects steel bushing 7 is connected with stretching screw hole 9, and the size in the size of said external screw thread 72 and stretching screw hole 9 is suitable, and said punching internal thread 71 is suitable with the size of said screw thread;
Cut-off footpath 500mm, the prestressed concrete resistance to plucking pile tube of wall thickness 100mm is connected with foundation platform;
8 connection steel bushings 7 are installed on the stretching screw hole 9 of said 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; Said 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;
, 1 top actual elevation of concrete pile need cut stake when being higher than design elevation; Cut the stake back and keep original reinforcing bar 11 of pile body and end plate 6; The end plate 6 of concrete pile 1 is installed in reinforcing bar heading 10 places of reinforcing bar 11; And with reinforcing stirrup 12, realize being connected once more of end plate 6 and reinforcing bar 11 with its fixed-site, pour into a mould again ordinary concrete to concrete pile 1 connection basis cushion cap 2 on; Thereby finally realize being connected of concrete pile 1 and foundation platform 2; The syndeton of this moment comprises concrete pile 1, foundation platform 2, the hole 13 that is connected, end plate 6, reinforcing bar 11, reinforce stirrup 12 and reinforcing bar heading 10, and the stake top of said concrete pile 1 is connected with foundation platform 2, is provided with reinforcing bar 11 in said concrete pile 1 pile body; The upper surface of concrete pile 1 pile concrete is stretched out in the upper end of reinforcing bar 11; Said end plate 6 is installed in reinforcing bar heading 10 places of reinforcing bar 11, is provided with the reinforcing stirrup 12 that is used for fixing end plate 6 below the end plate 6, is evenly equipped with a plurality of holes 13 that are connected that are used for connecting reinforcement 11 on the end face of end plate 6;
The said hole 13 that is connected comprises stretching screw hole 9 and heavy muscle hole 14, is provided with muscle groove 15 between said stretching screw hole 9 and the heavy muscle hole 14, and said reinforcing bar 11 inserts and was connected on the heavy muscle hole 14 after stretching screw hole 9 hoops passed muscle groove 15;
When said concrete pile 1 was hollow pile, method of attachment of the present invention also comprises to be put the reinforcing cage 3 that is welded with the thin steel supporting plate 5 of circle in the inner chamber of concrete pile 1 into, and cast is filled out in the inner chamber of core concrete 4 to concrete pile 1 again, forms reinforcing bar and fills out core concrete; Wait to fill out core concrete 4 reach pour into a mould again after certain intensity ordinary concrete to concrete pile 1 connection basis cushion cap on; Thereby finally realize being connected of concrete pile 1 and foundation platform 2; The syndeton of this moment also comprises reinforcing cage 3 and fills out core concrete 4; Said reinforcing cage 3 is arranged in the cavity of concrete pile 1, and reinforcing cage 3 is made up of the thin steel supporting plate 5 of vertical muscle 32, stirrup 31 and circle, and the thin steel supporting plate 5 of said circle is connected the bottom of indulging 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 said vertical muscle 32;
Cut-off footpath 500mm, the prestressed concrete resistance to plucking pile tube of wall thickness 100mm is connected with foundation platform;
Said 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; Said circle approaches the thick 4 ~ 5mm of being of steel supporting plate, diameter is 298 ~ 300mm;
Saidly fill out core concrete 4 to adopt intensity be the C40 slightly expanded concrete, filling out core length is 3m.
Claims (7)
1. the method for attachment of concrete pile and cushion cap is characterized in that: may further comprise the steps:
At first after pile foundation construction is accomplished, measure concrete pile stake top actual elevation;
When concrete pile stake top actual elevation is equal to or less than design elevation; A plurality of connection steel bushings are installed on the stretching screw hole of the end plate of concrete pile, and the indented bars that will be connected with foundation platform again is installed in and connects on the steel bushing, and the realization end plate is connected with indented bars; Pour into a mould again ordinary concrete to concrete pile connection basis cushion cap on; Thereby finally realize being connected of concrete pile and foundation platform, the syndeton of this moment comprises concrete pile, foundation platform, end plate, connection steel bushing, indented bars and stretching screw hole, and the stake top of said 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, and the connection steel bushing is installed in the stretching screw hole, and this connects steel bushing and is connected with indented bars;
When concrete pile stake top actual elevation is higher than design elevation, need cut stake, cut the stake back and keep original reinforcing bar of pile body and end plate, the end plate of concrete pile is installed in the reinforcing bar heading place of reinforcing bar; And with reinforcing stirrup with its fixed-site; Realize being connected once more of end plate and reinforcing bar, pour into a mould again ordinary concrete to concrete pile connection basis cushion cap on, thereby finally realize being connected of concrete pile and foundation platform; The syndeton of this moment comprises concrete pile, foundation platform, the hole that is connected, end plate, reinforcing bar, reinforcing stirrup and reinforcing bar heading; The stake top of said concrete pile is connected with foundation platform, is provided with reinforcing bar in the said concrete pile pile body, and the upper surface of concrete pile pile concrete is stretched out in the upper end of reinforcing bar; Said end plate is installed in the reinforcing bar heading place of reinforcing bar; Be provided with the reinforcing stirrup that is used for fixing end plate below the end plate, be evenly equipped with a plurality of holes that are connected that are used for connecting reinforcement on the end face of end plate, the said hole that is connected comprises stretching screw hole and heavy muscle hole; Be provided with the muscle groove between said stretching screw hole and the heavy muscle hole, said reinforcing bar inserts the stretching screw orifice ring and after passing the muscle groove, is connected on the heavy muscle hole.
2. the method for attachment of a kind of concrete pile according to claim 1 and cushion cap; It is characterized in that: said connection steel bushing comprises punching internal thread and external screw thread; Said indented bars one end is provided with screw thread, and this screw thread connects with the punching internal thread that is connected steel bushing, and the external screw thread that connects steel bushing is connected with the stretching screw hole; The size in said externally threaded size and stretching screw hole is suitable, and the size of said punching internal thread and said screw thread is suitable.
3. the method for attachment of a kind of concrete pile according to claim 1 and cushion cap; It is characterized in that: said connection steel bushing is cylindrical shape; Height is greater than end plate thickness and must not be less than 15mm; Said indented bars material adopts HRB335 or HRB400 reinforcing bar, and hoop " ┐ " or vertical-type outwardly is processed on said indented bars top.
4. the method for attachment of a kind of concrete pile according to claim 1 and cushion cap; It is characterized in that: when described concrete pile is hollow pile; This method of attachment also comprises to be put the reinforcing cage that is connected with the thin steel supporting plate of circle in the inner chamber of concrete pile into; Cast is filled out in the inner chamber of core concrete to concrete pile again, forms reinforcing bar and fills out core concrete; Core concrete to be filled out reach pour into a mould again after certain intensity ordinary concrete to concrete pile connection basis cushion cap on; Thereby finally realize being connected of concrete pile and foundation platform; The syndeton of this moment also comprises reinforcing cage and fills out core concrete; Said reinforcing cage is arranged in the cavity of concrete pile, and reinforcing cage is made up of the thin steel supporting plate of vertical muscle, stirrup and circle, and the thin steel supporting plate of circle is arranged on the bottom of vertical muscle; Built in the cavity of the concrete pile of the thin steel supporting plate of circle top and filled out core concrete, the end face of end plate is stretched out in the upper end of said vertical muscle.
5. the method for attachment of a kind of concrete pile according to claim 4 and cushion cap; It is characterized in that: the said core concrete of filling out adopts slightly expanded concrete; Filling out core concrete 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.
6. the method for attachment of a kind of concrete pile according to claim 4 and cushion cap is characterized in that: the diameter of the thin steel supporting plate of said 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.
7. the method for attachment of a kind of concrete pile according to claim 4 and cushion cap; It is characterized in that: hoop " ┐ " shape or vertical configuration outwardly is processed on said vertical muscle top; The quantity of vertical muscle is 4 ~ 30; Diameter is 6mm ~ 50mm, and the diameter of said stirrup is more than or equal to 3mm, and the spacing of stirrup is 40mm ~ 400mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101129158A CN102127913B (en) | 2011-05-04 | 2011-05-04 | Method for connecting concrete pile and bearing platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101129158A CN102127913B (en) | 2011-05-04 | 2011-05-04 | Method for connecting concrete pile and bearing platform |
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| CN102127913A CN102127913A (en) | 2011-07-20 |
| CN102127913B true CN102127913B (en) | 2012-01-25 |
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| CN108978699B (en) * | 2018-07-18 | 2021-04-23 | 中铁广州工程局集团有限公司 | Land integral prefabricated bearing platform and production and installation method thereof |
| CN109440803A (en) * | 2018-11-21 | 2019-03-08 | 中铁第四勘察设计院集团有限公司 | Railroad bridge foundation structure, tubular pole and cushion cap moment connection structure and construction method |
| CN109537614A (en) * | 2018-12-29 | 2019-03-29 | 深圳供电局有限公司 | Bored concrete pile and its forming method |
| CN110064877B (en) * | 2019-04-26 | 2021-07-27 | 五冶集团上海有限公司 | Pile cutting reinforcement cage welding device |
| CN110258608A (en) * | 2019-06-12 | 2019-09-20 | 南通大学 | A kind of new device that prestressed pile is connect with cushion cap or bottom plate |
| CN111335308A (en) * | 2020-04-25 | 2020-06-26 | 开封市通达公路勘察设计有限公司 | Method for processing passage under soft foundation by using small prefabricated pile group |
| CN111906709B (en) * | 2020-07-19 | 2022-01-25 | 河北卓思通信器材有限公司 | Communication base station stake fixing device with locating component |
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Application publication date: 20110720 Assignee: Jianhua building materials (Zhaoqing) Co., Ltd. Assignor: Jiangsu builds China pipe pile Co., Ltd. Contract record no.: 2015440000562 Denomination of invention: Method for connecting concrete pile and bearing platform Granted publication date: 20120125 License type: Exclusive License Record date: 20150814 |
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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. |
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| 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. |
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| CP03 | Change of name, title or address |