CN105625460A - Damping device used for connecting pile foundation and bearing platform and construction method of damping device - Google Patents
Damping device used for connecting pile foundation and bearing platform and construction method of damping device Download PDFInfo
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- CN105625460A CN105625460A CN201610141295.3A CN201610141295A CN105625460A CN 105625460 A CN105625460 A CN 105625460A CN 201610141295 A CN201610141295 A CN 201610141295A CN 105625460 A CN105625460 A CN 105625460A
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- pile foundation
- cushion cap
- inner sleeve
- outer sleeve
- damping device
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1692—Shapes conical or convex
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a damping device used for connecting a pile foundation and a bearing platform and a construction method of the damping device. The damping device comprises the pile foundation and the bearing platform, wherein a groove matched with the pile foundation is formed in the bottom of the bearing platform; the top of the pile foundation is connected with an outer sleeve; an inner sleeve is arranged in the groove; the inner sleeve sleeves the outer sleeve; the outer sleeve is connected with the inner sleeve though an elastic connecting part; the outer sleeve, the inner sleeve and the elastic connecting part form a sealed space; and the sealed space is filled with a buffer layer. In the damping device, the elastic connecting part and the buffer layer effectively absorb earthquake energy, buffer the relative displacement between the pile foundation and the bearing platform, effectively prevent a superstructure on the bearing platform from overturn, and protect the joint of the pile foundation and the bearing platform against irreversible damage, including concrete cracking and reinforcement yielding; and after an earthquake is over, a damping connection structure for the pile foundation and the bearing platform resets under the elastic action of the buffer layer and the elastic connecting part so as to achieve the purposes of protecting the superstructure and guaranteeing the completeness of the foundation.
Description
Technical field
The invention belongs to building structure technology field, it is specifically related to a kind of damping device for connecting pile foundation and cushion cap and constructional method thereof.
Background technology
The high speed development built along with Chinese Urbanization and urban land resource in short supply, the Highrise buildings continued to bring out, the bearing capacity demand improved constantly and construction quality require all to make bearing capacity height, sedimentation are little, making is flexible and applicable elements widely pile foundation become above-mentioned field and apply maximum base forms.
In traditional pile foundation, pile foundation top is mounted in cushion cap and the main muscle of pile foundation inserts cushion cap anchoring. Owing to area change in plane of cushion cap and stake body junction is the most violent, under earthquake action, the mass force of buildings superstructure makes cushion cap and pile foundation junction bear huge bending and shearing. Meanwhile, the ground counter-force effect along the distribution of pile foundation length direction makes pile foundation deflection deformation, concentrates producing violent stress at stake top fixing position. Therefore, although it is so consolidate intensity and the plastic deformation ability that the mode of connecing improves junction, but concrete cracking, the reinforcement yielding even irreversible destruction such as fracture easily occurs herein. Especially for low pile foundation of bearing platform plinth, the damage of pile foundation and cushion cap junction is difficult to detection and maintenance.
Summary of the invention
The present invention bears huge bending and shearing to solve to be connected between above-mentioned pile foundation and cushion cap so that its technical problem easily destroyed, it is provided that a kind of can cushion load and the damping device of connection pile foundation that stress is concentrated and cushion cap and constructional method thereof.
In order to solve the problem, the present invention is achieved by following technical scheme:
Damping device for connecting pile foundation and cushion cap of the present invention, comprises pile foundation and cushion cap, is provided with the groove coordinated with pile foundation bottom described cushion cap;
Described pile foundation top is connected with outer sleeve, is provided with inner sleeve in described groove, and described outer sleeve is set in described inner sleeve, and described outer sleeve is connected by elastic joint part with described inner sleeve; Described outer sleeve, inner sleeve and elastic joint part form the space of sealing; Described seal cavity is filled with buffer layer.
Further, in order to the effect guaranteeing that elastic joint part can play connection outer sleeve, inner sleeve forms enclosed space, can flexible extending in horizontal plane, described elastic joint part is web plate simultaneously, and it is radial in bellows-shaped along pile foundation in horizontal plane;
One end and the outer sleeve of described web plate are welded to connect, and the other end embeds in described cushion cap and fixes with the reinforcement welding in cushion cap.
Further, in order to the stable connection guaranteed between outer sleeve and inner sleeve, described elastic joint part also comprises described elastic joint part and also comprises spring assembly, in order to prevent spring from getting rusty, described spring assembly comprises spring and fills the rubber bodies of the described spring of parcel, described spring assembly waits angle distribution 4��8 along the circumference of pile foundation, one end and the outer sleeve of described spring assembly are welded to connect, the other end is stretched in cushion cap by the pre-formed members groove of inner sleeve, and fixes with the reinforcement welding in cushion cap.
Further, more firm in order to make inner sleeve and outer sleeve be connected with cushion cap and pile foundation respectively, the end face of described inner sleeve is welded with some upper anchoring bolts for being embedded in described cushion cap;
The bottom surface of described outer sleeve is welded with some fixing bolts that casts anchor for being embedded in described pile foundation.
Further, in order to limit the swing amplitude of the relative pile foundation of cushion cap, the inner top surface of described inner sleeve is provided with some upper conical to described outer sleeve direction;
The upper top of described outer sleeve is provided with some inferior pyramidal platforms to described inner sleeve direction, in described upper conical the gap being arranged on adjacent inferior pyramidal platform.
Further, described inferior pyramidal platform is cellular distribution.
Further, width between centers between adjacent inferior pyramidal platform is 1.2��1.8 times of described inferior pyramidal platform maximum diameter.
Further, the space that described upper conical relatively described inferior pyramidal platform swings is less than the maximum corner that described top building allows.
Further, described buffer layer is gravel sand and/or circle sand.
A constructional method for the coupling device of damping, comprises the following steps:
S1, the bottom surface of outer sleeve weld some fixing bolts that casts anchor, inner sleeve end face welding some on anchoring bolt; End face at outer sleeve arranges inferior pyramidal platform, arranges upper conical in the bottom surface of inner sleeve, and described upper conical is arranged in the gap between adjacent inferior pyramidal platform;
S2, build pile foundation, and outer sleeve is arranged on the top of pile foundation so that the fixing bolt that casts anchor is embedded in pile foundation concrete;
S3, one end of web plate is connected with the bottom of outer sleeve, one end of spring assembly is connected with the top of outer sleeve; Described web plate is radial in bellows-shaped along pile foundation in horizontal plane;
S4, installation inner sleeve so that inner sleeve, outer sleeve and web plate form the seal cavity filled by the buffer layer of compacting and also welded with web plate the bottom surface of inner sleeve, and make the pre-formed members groove of the other end through outer sleeve of spring assembly;
S5, the reinforcing bar framework building cushion cap, weld the other end of web plate, the other end of spring assembly and the upper surface of inner sleeve with described reinforcing bar framework;
S6, toward deposit concrete cushion cap in the reinforcing bar framework of cushion cap, and make inner sleeve by upper anchoring bolt embedment in cushion cap.
Further, described inferior pyramidal platform is cellular distribution, and the width between centers between adjacent inferior pyramidal platform is 1.2��1.8 times of described inferior pyramidal platform maximum diameter.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the present invention adopts and arranges outer sleeve in pile foundation, arranges inner sleeve, fills buffer layer between outer sleeve and inner sleeve, and be connected elastic joint part between outer sleeve with inner sleeve on cushion cap. in earthquake, relative displacement and swing is there is between pile foundation and cushion cap, elastic joint part and buffer layer are by the above-mentioned relative displacement of deformation buffer and swing, and effectively absorb shake energy, thus reduce the earthquake effect of pile foundation and cushion cap junction, effectively prevent toppling of cushion cap superstructure, and protect pile foundation and concrete cracking does not occur in cushion cap junction, the irreversible damage of reinforcement yielding, after earthquake terminates, the damping of pile foundation and cushion cap connects structure and resets under the elastic contribution of buffer layer and elastic joint part, earthquake can be protected superstructure guarantee again the complete of pile foundation to realize.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the structural representation for connecting the pile foundation also damping device of cushion cap of the present invention;
Fig. 2 is the schematic cross-section of A-A in Fig. 1;
Fig. 3 is the vertical view of the web plate of the coupling device of damping of the present invention;
Fig. 4 is the schematic cross-section of B-B in Fig. 3;
Fig. 5 is the scheme of installation for connecting the pile foundation also elastomeric component of the damping device of cushion cap of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, it will be appreciated that preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Fig. 1��Fig. 5, damping device for connecting pile foundation and cushion cap of the present invention, comprise cushion cap 1, it be arranged on bottom described cushion cap 1 and for supporting described cushion cap 1 and the pile foundation 2 of above all building structure, the bottom of described cushion cap 1 is provided with groove, described pile foundation 2 is arranged in groove, described pile foundation 2 top is connected with outer sleeve 3, it is provided with inner sleeve 4 in the groove of described cushion cap 1, described outer sleeve 3 is set in described inner sleeve 4, by elastic joint part 5 between described outer sleeve 3 and described inner sleeve 4; Described elastic joint part in the present embodiment is web plate 5 and spring assembly 13, and described web plate 5 is radial in bellows-shaped along pile foundation in horizontal plane. One end and the outer sleeve 3 of described web plate 5 are welded to connect, and the other end embeds in described cushion cap 1 and is welded and fixed with the reinforcing bar 9 in cushion cap 1. Described web plate 5 is steel scutum. The rubber bodies 15 that described spring assembly 13 comprises spring 14 and filling bag is rolled in outside described spring, described spring assembly 13 waits angle distribution 4��8 along pile foundation 2 circumference. One end and the outer sleeve 3 of described spring assembly 13 are welded to connect, and the other end is stretched in cushion cap by the pre-formed members groove of inner sleeve, and fix with the reinforcement welding in cushion cap.
The seal cavity that described inner sleeve 4, outer sleeve 3 and web plate 5 are formed, is filled with buffer layer 6 in described seal cavity, the buffer layer 6 in the present embodiment is gravel sand and/or circle sand.
The end face of described inner sleeve 4 is welded with some upper anchoring bolts 8 for being embedded in described cushion cap 1; The inner top surface of described inner sleeve 4 is provided with some upper conical 12 to described outer sleeve direction. The bottom surface of described outer sleeve 3 is welded with some fixing bolts 7 that casts anchor for being embedded in described pile foundation 2, the upper top of described outer sleeve 3 is provided with some inferior pyramidal platforms 11 to described inner sleeve direction, in described upper conical 12 gap being arranged on adjacent inferior pyramidal platform 11. Described inferior pyramidal platform 11 is in cellular distribution. Width between centers between adjacent inferior pyramidal platform 11 is 1.2��1.8 times of described inferior pyramidal platform 11 maximum diameter. The space that described upper conical 12 relatively described inferior pyramidal platform 11 swings is less than the maximum corner that described top building allows. Described upper conical 12 with inferior pyramidal platform 11 for size is identical and is made up of steel material.
For connecting a constructional method for the damping device of pile foundation and cushion cap, comprise the following steps:
S1, the bottom surface of outer sleeve 3 weld some fixing bolts 7 that casts anchor, inner sleeve 4 end face welding some on anchoring bolt 8; End face at outer sleeve 3 vertically arranges inferior pyramidal platform 11, vertically arranges upper conical 12 in the bottom surface of inner sleeve 4, and described upper conical 12 is arranged in the gap between adjacent inferior pyramidal platform 11;
S2, build pile foundation, and outer sleeve is arranged on the top of pile foundation so that the fixing bolt that casts anchor is embedded in pile foundation concrete;
S3, one end of web plate is connected with the bottom of outer sleeve, one end of spring assembly 13 is connected with the top of outer sleeve; Described web plate is radial in bellows-shaped along pile foundation in horizontal plane;
S4, installation inner sleeve so that inner sleeve, outer sleeve and web plate form the seal cavity filled by the buffer layer of compacting and also welded with web plate the bottom surface of inner sleeve, and make the pre-formed members groove of the other end through outer sleeve of spring assembly;
S5, the reinforcing bar framework building cushion cap, and the other end of web plate, the other end of spring assembly and the upper surface of inner sleeve are welded with described reinforcing bar framework;
S6, toward deposit concrete cushion cap in the reinforcing bar framework of cushion cap, and make inner sleeve by upper anchoring bolt embedment in cushion cap.
In earthquake, there is relative displacement and swing in pile foundation 2 and cushion cap 1, the distortion of corrugated web plate 5 and spring assembly 13 and the internal friction of buffer layer 6 and again arrangement can effectively absorb shake energy, and cushion the relative displacement of pile foundation 2 with cushion cap 1 and swing, when above-mentioned relative displacement and swing arrive certain value allowable, upper conical 12 and inferior pyramidal platform 11 contact with each other the further increase of restriction relative displacement, and absorb seismic energy further by the elasticity distortion of upper conical 12 and inferior pyramidal platform 11, thus reduce the earthquake action to superstructure, effectively prevent toppling of cushion cap 1 superstructure, and protect stressed area sudden change pile foundation 2 and cushion cap 1 junction concrete cracking does not occur, the irreversible damage of reinforcement yielding. after earthquake terminates, the damped junction device of described pile foundation 2 and cushion cap 1 resets under the elastic contribution of steel construction, superstructure can be protected to ensure again the complete of pile foundation to realize in earthquake.
Other structure of the coupling device of damping described in the present embodiment is see prior art.
The above, it it is only the better embodiment of the present invention, not the present invention is done any restriction in form, therefore every do not depart from technical solution of the present invention content, any amendment, equivalent variations and the modification above embodiment done according to the technical spirit of the present invention, all still belongs in the scope of technical solution of the present invention.
Claims (10)
1. one kind for connecting the damping device of pile foundation and cushion cap, it is characterised in that: comprise pile foundation and cushion cap, bottom described cushion cap, it is provided with the groove coordinated with pile foundation;
Described pile foundation top is connected with outer sleeve, is provided with inner sleeve in the groove of described cushion cap, and described outer sleeve is set in described inner sleeve, and described outer sleeve is connected by elastic joint part with described inner sleeve; Described outer sleeve, inner sleeve and elastic joint part form the space of sealing;
It is filled with buffer layer in described seal cavity.
2. according to claim 1 for connecting the damping device of pile foundation and cushion cap, described elastic joint part comprises web plate, and it is radial in bellows-shaped along pile foundation in horizontal plane;
One end and the outer sleeve of described web plate are welded to connect, and the other end embeds in described cushion cap and fixes with the reinforcement welding in cushion cap.
3. according to claim 2 for connecting the damping device of pile foundation and cushion cap, described elastic joint part also comprises spring assembly, described spring assembly comprises spring and fills the rubber bodies of the described spring of parcel, described spring assembly waits angle distribution 4��8 along the circumference of pile foundation, one end and the outer sleeve of described spring assembly are welded to connect, the other end is stretched in cushion cap by the pre-formed members groove of inner sleeve, and fixes with the reinforcement welding in cushion cap.
4., according to claim 1 for connecting the damping device of pile foundation and cushion cap, the end face of described inner sleeve is welded with some upper anchoring bolts for being embedded in described cushion cap;
The bottom surface of described outer sleeve is welded with some fixing bolts that casts anchor for being embedded in described pile foundation.
5., for connecting the damping device of pile foundation and cushion cap according to the arbitrary item of Claims 1-4, the inner top surface of described inner sleeve is provided with some upper conical to described outer sleeve direction;
The upper top of described outer sleeve is provided with some inferior pyramidal platforms to described inner sleeve direction, in described upper conical the gap being arranged on adjacent inferior pyramidal platform.
6., according to claim 5 for connecting the damping device of pile foundation and cushion cap, described inferior pyramidal platform is cellular distribution.
7., according to claim 6 for connecting the damping device of pile foundation and cushion cap, the width between centers between adjacent inferior pyramidal platform is 1.2��1.8 times of described inferior pyramidal platform maximum diameter;
The maximum corner that the building that the space that described upper conical relatively described inferior pyramidal platform swings is less than on described cushion cap allows.
8., for connecting the damping device of pile foundation and cushion cap according to the arbitrary item of claim 6 to 7, described buffer layer is gravel sand and/or circle sand.
9. one kind for connecting the constructional method of the damping device of pile foundation and cushion cap, it is characterised in that: comprise the following steps:
S1, the bottom surface of outer sleeve weld some fixing bolts that casts anchor, inner sleeve end face welding some on anchoring bolt; End face at outer sleeve arranges inferior pyramidal platform, arranges upper conical in the bottom surface of inner sleeve, and described upper conical is arranged in the gap between adjacent inferior pyramidal platform;
S2, build pile foundation, and outer sleeve is arranged on the top of pile foundation so that the fixing bolt that casts anchor is embedded in pile foundation concrete;
S3, one end of web plate is connected with the bottom of outer sleeve; Described web plate is radial in bellows-shaped along pile foundation in horizontal plane;
S4, installation inner sleeve so that inner sleeve, outer sleeve and web plate form the seal cavity filled by the buffer layer of compacting and also welded with web plate the bottom surface of inner sleeve;
S5, the reinforcing bar framework building cushion cap, and the upper surface of the other end inner sleeve of web plate is welded with described reinforcing bar framework;
S6, toward deposit concrete cushion cap in the reinforcing bar framework of cushion cap, and make inner sleeve by upper anchoring bolt embedment in cushion cap.
10. according to claim 9 for connecting the constructional method of the damping device of pile foundation and cushion cap, described inferior pyramidal platform is cellular distribution, and the width between centers between adjacent inferior pyramidal platform is 1.2��1.8 times of described inferior pyramidal platform maximum diameter;
In described S3, also comprise mounting spring assembly, described spring assembly one end is connected with the top of outer sleeve; In S5, the other end of spring assembly through inner sleeve and is fixed with the reinforcement welding in cushion cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141295.3A CN105625460B (en) | 2016-03-11 | 2016-03-11 | A kind of damping device and its construction method for being used to connect pile foundation and cushion cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141295.3A CN105625460B (en) | 2016-03-11 | 2016-03-11 | A kind of damping device and its construction method for being used to connect pile foundation and cushion cap |
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| CN105625460A true CN105625460A (en) | 2016-06-01 |
| CN105625460B CN105625460B (en) | 2018-03-20 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120834A (en) * | 2016-06-21 | 2016-11-16 | 扬州工业职业技术学院 | A kind of buffer-type antidetonation civil engineering groundwork structure of sensing control |
| CN106351217A (en) * | 2016-09-20 | 2017-01-25 | 太原理工大学 | Self-resetting multidimensional damping pipe pile group foundation and construction method |
| CN107012894A (en) * | 2017-05-10 | 2017-08-04 | 广州大学 | A kind of composite shock-absorbing device and its construction method |
| CN107447784A (en) * | 2017-08-30 | 2017-12-08 | 中交公路规划设计院有限公司 | A kind of prestressed pipe merism and its construction method |
| CN108951714A (en) * | 2018-07-11 | 2018-12-07 | 宋伟 | A kind of resiliently mounted ground with damping |
| CN110258613A (en) * | 2019-07-02 | 2019-09-20 | 山东科技大学 | A kind of land single pile is inverted double barrels type wind power foundation and its application method |
| CN110593328A (en) * | 2017-09-15 | 2019-12-20 | 广州市台实防水补强有限公司 | Pile foundation reinforcing method for building engineering construction |
| CN112030933A (en) * | 2020-09-16 | 2020-12-04 | 韩金普 | Gravel pile foundation structure and construction method thereof |
| CN115142460A (en) * | 2022-08-16 | 2022-10-04 | 福建众腾建设工程有限公司 | Anti-seismic building construction structure |
| CN115288159A (en) * | 2022-09-13 | 2022-11-04 | 山东兖州建设总公司 | Shock attenuation formula building engineering pile foundation |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120834A (en) * | 2016-06-21 | 2016-11-16 | 扬州工业职业技术学院 | A kind of buffer-type antidetonation civil engineering groundwork structure of sensing control |
| CN106351217A (en) * | 2016-09-20 | 2017-01-25 | 太原理工大学 | Self-resetting multidimensional damping pipe pile group foundation and construction method |
| CN106351217B (en) * | 2016-09-20 | 2018-07-17 | 太原理工大学 | A kind of Self-resetting multidimensional damping tube pile group pile foundation and construction method |
| CN107012894A (en) * | 2017-05-10 | 2017-08-04 | 广州大学 | A kind of composite shock-absorbing device and its construction method |
| CN107447784A (en) * | 2017-08-30 | 2017-12-08 | 中交公路规划设计院有限公司 | A kind of prestressed pipe merism and its construction method |
| CN110593328B (en) * | 2017-09-15 | 2020-10-20 | 精立建设有限公司 | Pile foundation reinforcing method for building engineering construction |
| CN110593328A (en) * | 2017-09-15 | 2019-12-20 | 广州市台实防水补强有限公司 | Pile foundation reinforcing method for building engineering construction |
| CN108951714A (en) * | 2018-07-11 | 2018-12-07 | 宋伟 | A kind of resiliently mounted ground with damping |
| CN110258613A (en) * | 2019-07-02 | 2019-09-20 | 山东科技大学 | A kind of land single pile is inverted double barrels type wind power foundation and its application method |
| CN112030933A (en) * | 2020-09-16 | 2020-12-04 | 韩金普 | Gravel pile foundation structure and construction method thereof |
| CN112030933B (en) * | 2020-09-16 | 2022-03-29 | 湖北华欣城市建设工程有限责任公司 | Gravel pile foundation structure and construction method thereof |
| CN115142460A (en) * | 2022-08-16 | 2022-10-04 | 福建众腾建设工程有限公司 | Anti-seismic building construction structure |
| CN115288159A (en) * | 2022-09-13 | 2022-11-04 | 山东兖州建设总公司 | Shock attenuation formula building engineering pile foundation |
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