CN102808420B - Bearing platform and construction method for connection between bearing platform and foundation pile - Google Patents
Bearing platform and construction method for connection between bearing platform and foundation pile Download PDFInfo
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- CN102808420B CN102808420B CN201210301907.2A CN201210301907A CN102808420B CN 102808420 B CN102808420 B CN 102808420B CN 201210301907 A CN201210301907 A CN 201210301907A CN 102808420 B CN102808420 B CN 102808420B
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- foundation pile
- taper liner
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Abstract
The invention provides a bearing platform and a construction method for connection between the bearing platform and a foundation pile. The bearing platform comprises a bearing platform main body, a conical lining and a conical depressed part, wherein the bearing platform main body is a concrete structure; the conical lining is arranged from the bottom surface of the bearing platform main body to the internal part of the bearing platform main body and is provided with a top flat surface and a side inclined surface; and the conical depressed part is arranged in the bearing platform main body and is in contact with the external surface of the conical lining. A pile head of the foundation pile which is matched with the bearing platform supports the top flat surface of the conical lining. The upper flat surface of the bearing platform is connected with a beam or a column of a building component through stirrups. Since the conical lining is arranged in the bottom surface of the bearing platform and the conical lining is connected with top (pile head) of the foundation pile in a supported way, the connection between the bearing platform and the top of the foundation pile is non-rigid connection, the connection method allows the pile head to rotate in the conical lining, the influence on the building component caused by bending torque produced by the foundation pile due to earthquakes or other reasons is reduced to a very great extent, and the damage to the component during geological change is decreased.
Description
Technical field
The present invention relates to building engineering field, in particular to the construction method that a kind of cushion cap and cushion cap are connected with foundation pile.
Background technology
At present in building pile foundation field, connection between foundation pile and cushion cap is all adopt to be rigidly connected, that is: the reinforcing bar on foundation pile (concrete pile, piling bar, concrete precast pile etc. of cast-in-site) is fixedly connected with concrete bearing platform basis, even if be also like this in seismic design.When there is earthquake, the huge moment of deflection produced by earthquake can act on the joint portion of foundation pile and cushion cap foundation.Being rigidly connected between foundation pile and cushion cap foundation makes cannot turn round between foundation pile and cushion cap foundation, thus causes foundation pile pile body to be easily destroyed.For the concrete precast pile that self bending resistance is on the weak side, the impact of moment of deflection on concrete precast pile that earthquake produces is larger.
Summary of the invention
The present invention aims to provide the construction method that a kind of cushion cap and cushion cap are connected with foundation pile, the foundation pile that the construction method be connected with foundation pile to solve cushion cap of the prior art and cushion cap causes and cushion cap is rigidly connected, cannot turn round, thus the technical problem be easily destroyed when being subject to moment of deflection.
To achieve these goals, according to an aspect of the present invention, providing a kind of cushion cap, comprising: cushion cap main body, is concrete structure; Taper liner, is arranged towards the inside of cushion cap main body by the bottom surface of cushion cap main body, has top plane and skew back face; Conical indentation, is formed at the external surface of the inside of cushion cap main body laminating taper liner; Wherein, the pile crown of the foundation pile coordinated with cushion cap supports the top plane of taper liner; Further, the contacts-side-down of the upper plane of the pile crown of foundation pile and the top plane of taper liner, pile crown can turn round in taper liner; Gap is there is between the skew back face of taper liner and foundation pile.
Further, the upper plane of cushion cap is connected by the beam of stirrup and building unit or post.
Further, the metal sheet that taper liner is 1 millimeter to 4 millimeters by thickness is made.
Further, the height of sidewall is not less than 200 millimeters.
Further, the end face of taper liner arranges bolt penetration hole.
Further, the shape of cross section of taper type depression and taper liner is circular or polygon, to coordinate the shape of the pile crown of foundation pile.
According to a further aspect in the invention, provide the construction method that a kind of cushion cap is connected with foundation pile, comprising: step S1, foundation pile is set; Step S2, places taper liner at the top of foundation pile, and taper liner and foundation pile is fixed; Step S3, is lining with and builds cushion cap in taper.
Further, before step S2, also comprise: step S11, the ground bottom leveling, compacting cushion cap; The top of cleaning foundation pile.
Further, between step S2 and step S3, also comprise: step S21, hardcore bed is laid on the ground in cushion cap making region, and cover levelling with cement mortar bedding cushion on hardcore bed.
Further, before step S3, also comprise: step S31, to cushion cap arrangement of reinforcement.
Further, be bolted between taper liner and foundation pile, after step S31, before step S3, also comprise: step S32, remove the bolt of fixing taper liner.
Apply technical scheme of the present invention, in the inside, bottom surface of cushion cap, taper liner is set, taper liner again with foundation pile top (pile crown) support and connection, therefore be connected for non-rigid between cushion cap and the top of foundation pile, this connected mode allows pile crown to rotate in taper liner, alleviate the impact that the moment of deflection that causes foundation pile to produce because of earthquake or other reasons causes building unit to a great extent, the destruction that component is subject to when geology changes reduces.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The sectional view that Fig. 1 shows cushion cap of the present invention and is connected with foundation pile;
Fig. 2 shows the schematic diagram of the taper liner of the first embodiment of cushion cap of the present invention;
Fig. 3 shows the schematic diagram of the taper liner of the second embodiment of cushion cap of the present invention; And
Fig. 4 shows the schematic diagram of the taper liner of the 3rd embodiment of cushion cap of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The sectional view that Fig. 1 shows cushion cap of the present invention and is connected with foundation pile.Cushion cap 1 main body is concrete structure, and shape is round platform or terrace with edge.The upper plane of cushion cap 1 is connected by the beam of stirrup and building unit or post; The bottom surface of cushion cap 1 is inwardly arranged has top plane and skew back face cone shape liner 2, and the bottom surface of cushion cap 1 inwardly forms the depression laminating taper liner 2 of taper type, and depression has the sidewall of upper plane and inclination and open lower end.The end face of taper liner 2 is supported in the top (pile crown) of foundation pile 3.The metal sheet that taper liner 2 is t=1mm to 4mm by thickness is made, be preferably steel plate, Sidewall Height is not less than 200mm, and end face arranges the bolt penetration hole 21 (for GB GB13476 prefabricated tubular pile, the diameter of this perforation can be Ф 30mm) connecting foundation pile pile crown 3.
Fig. 2 to Fig. 4 shows the detailed description of the invention of the taper liner 2 of the cushion cap of invention.As shown in Figure 2, the taper liner 2 of the first embodiment is set to truncated cone-shaped; As shown in Figure 3, the taper liner 2 of the second embodiment is set to end face is foursquare side's platform shape; As shown in Figure 4, the taper liner 2 of the 3rd embodiment is set to end face is pentagonal polygon platform.These difform settings are to match with difform foundation pile 3.
The construction method that a kind of cushion cap 1 of the present invention is connected with foundation pile 3, construction method step comprises:
The first step: arrange foundation pile 3, constructs by norm of construction requirement.
Second step: the ground bottom leveling, compacting cushion cap 1.
3rd step: plane on cleaning foundation pile 3 head.
4th step: place taper liner 2 at foundation pile 3 head, is fixed on foundation pile 3 head through bolt penetration hole 21 by taper liner 2 with bolt.
5th step: certain thickness hardcore bed 4 is laid on the ground making region at cushion cap 1, and covers levelling with cement mortar bedding cushion 5, the height making foundation pile 3 head expose cement bonded sand oar bed course 5 plane is not less than 50mm.
6th step: cushion cap 1 arrangement of reinforcement (such as, if foundation pile 3 dials stake for anti-, the rod iron of anti-appropriation need be set).
7th step: the bolt removing fixing taper liner 2, then fluid concrete forms cushion cap 1.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
The invention provides a kind of cushion cap be connected with foundation pile and the construction method be connected with foundation pile thereof.Bottom because of cushion cap of the present invention arranges taper liner, therefore be connected for non-rigid between cushion cap and the top (pile crown) of foundation pile, this connected mode allows pile crown to turn round in taper liner, alleviate the impact that the moment of deflection that causes foundation pile to produce because of earthquake or other reasons causes building unit significantly, the destruction that component is subject to when geology changes reduces.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a cushion cap, is characterized in that, comprising:
Cushion cap main body is concrete structure;
Taper liner (2), is arranged towards the inside of described cushion cap main body by the bottom surface of described cushion cap main body, has top plane and skew back face;
Conical indentation, the external surface of described taper liner (2) of fitting in the inside of described cushion cap main body is formed;
Wherein, the pile crown of the foundation pile (3) coordinated with described cushion cap (1) supports the top plane of described taper liner (2);
Further, the contacts-side-down of the upper plane of the pile crown of described foundation pile (3) and the top plane of described taper liner (2), described pile crown can turn round in described taper liner;
Gap is there is between the skew back face of described taper liner (2) and described foundation pile (3).
2. cushion cap according to claim 1, is characterized in that, the upper plane of described cushion cap (1) is connected by the beam of stirrup and building unit or post.
3. cushion cap according to claim 1, is characterized in that, the metal sheet that described taper liner (2) is 1 millimeter to 4 millimeters by thickness is made.
4. cushion cap according to claim 1, is characterized in that, the height in described skew back face is not less than 200 millimeters.
5. cushion cap according to claim 1, is characterized in that, the top plane of described taper liner (2) arranges bolt penetration hole.
6. cushion cap according to claim 1, is characterized in that, the shape of cross section of described conical indentation and described taper liner (2) is circular or polygon, to coordinate the shape of the pile crown of described foundation pile (3).
7. the construction method that is connected with foundation pile of cushion cap, is characterized in that, comprising:
Step S1, arranges foundation pile (3);
Step S2, places taper liner (2) at the top of described foundation pile (3), and described taper liner (2) and described foundation pile (3) is fixed;
Step S3, described taper liner (2) builds cushion cap main body;
Before step S3, also comprise: step S31, to described cushion cap (1) arrangement of reinforcement;
Be bolted between described taper liner (2) and described foundation pile (3), after step S31, before step S3, also comprise: step S32, remove the bolt of fixing described taper liner (2);
Further, the contacts-side-down of the upper plane of the pile crown of described foundation pile (3) and the top plane of described taper liner (2), described pile crown can turn round in described taper liner; Wherein, there is gap between the skew back face of described taper liner (2) and described foundation pile (3).
8. construction method according to claim 7, is characterized in that, before described step S2, also comprises:
Step S11, flattens, tamps the ground of described cushion cap (1) bottom; Clear up the top of described foundation pile (3).
9. construction method according to claim 7, is characterized in that, between step S2 and step S3, also comprises:
Step S21, hardcore bed (4) is laid on the ground in described cushion cap (1) making region, and covers levelling at described hardcore bed (4) upper cement mortar bedding cushion (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210301907.2A CN102808420B (en) | 2012-08-23 | 2012-08-23 | Bearing platform and construction method for connection between bearing platform and foundation pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210301907.2A CN102808420B (en) | 2012-08-23 | 2012-08-23 | Bearing platform and construction method for connection between bearing platform and foundation pile |
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| Publication Number | Publication Date |
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| CN102808420A CN102808420A (en) | 2012-12-05 |
| CN102808420B true CN102808420B (en) | 2015-05-13 |
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| CN201210301907.2A Active CN102808420B (en) | 2012-08-23 | 2012-08-23 | Bearing platform and construction method for connection between bearing platform and foundation pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090841A (en) * | 2017-04-17 | 2017-08-25 | 广州电力设计院 | Prefabricated cushion cap foundation, transmission tower and its construction method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074199B (en) * | 2014-06-17 | 2017-02-08 | 杭州华能工程安全科技股份有限公司 | Underwater bearing platform construction method |
| CN108797628A (en) * | 2018-07-03 | 2018-11-13 | 上海市城市建设设计研究总院（集团）有限公司 | Lift-off formula subtracts shock insulation pile foundation construction |
| CN109137959B (en) * | 2018-07-26 | 2023-08-18 | 中建空列（北京）科技有限公司 | Construction method of empty-iron zero-excavation environment-friendly upright post foundation pile |
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| CN1295638A (en) * | 1999-02-03 | 2001-05-16 | 日本皮拉工业株式会社 | Pile foundation structure |
| CN102535500A (en) * | 2012-02-28 | 2012-07-04 | 上海现代建筑设计(集团)有限公司 | Reducing and sinking pile-supported embankment for treating soft soil foundation under large-area stacked load at ground and design method for reducing and sinking pile-supported embankment |
| CN102605722A (en) * | 2012-03-23 | 2012-07-25 | 陈兴冲 | Method for seismic reinforcement of pier by the aid of reinforced concrete cover |
| CN202830955U (en) * | 2012-08-23 | 2013-03-27 | 江苏建华管桩有限公司 | Bearing platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63289124A (en) * | 1987-05-20 | 1988-11-25 | Tokyu Constr Co Ltd | Pin-joint work of pile head in pile foundation of building |
| JPH08120687A (en) * | 1994-10-26 | 1996-05-14 | Taisei Corp | Pile head bearing construction and pile reinforcement holding form |
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2012
- 2012-08-23 CN CN201210301907.2A patent/CN102808420B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295638A (en) * | 1999-02-03 | 2001-05-16 | 日本皮拉工业株式会社 | Pile foundation structure |
| CN102535500A (en) * | 2012-02-28 | 2012-07-04 | 上海现代建筑设计(集团)有限公司 | Reducing and sinking pile-supported embankment for treating soft soil foundation under large-area stacked load at ground and design method for reducing and sinking pile-supported embankment |
| CN102605722A (en) * | 2012-03-23 | 2012-07-25 | 陈兴冲 | Method for seismic reinforcement of pier by the aid of reinforced concrete cover |
| CN202830955U (en) * | 2012-08-23 | 2013-03-27 | 江苏建华管桩有限公司 | Bearing platform |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090841A (en) * | 2017-04-17 | 2017-08-25 | 广州电力设计院 | Prefabricated cushion cap foundation, transmission tower and its construction method |
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| CN102808420A (en) | 2012-12-05 |
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Address after: 212413 Development Zone along the Yangtze River, Shu Shu Town, Jiangsu, Jurong Patentee after: Jianhua building materials (Jiangsu) Co., Ltd. Address before: 212413 Development Zone along the Yangtze River, Shu Shu Town, Jiangsu, Jurong Patentee before: Jiangsu builds China pipe pile Co., Ltd. |
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Address after: 212413 Development Zone along the Yangtze River in Jurong, Jiangsu Patentee after: Jianhua building materials (China) Co., Ltd. Address before: 212413 Development Zone along the Yangtze River in Jurong, Jiangsu Patentee before: Jianhua building materials (Jiangsu) Co., Ltd. |
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