CN105735367B - A kind of pile foundation multidimensional damping control device - Google Patents
A kind of pile foundation multidimensional damping control device Download PDFInfo
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- CN105735367B CN105735367B CN201610127426.2A CN201610127426A CN105735367B CN 105735367 B CN105735367 B CN 105735367B CN 201610127426 A CN201610127426 A CN 201610127426A CN 105735367 B CN105735367 B CN 105735367B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of pile foundation multidimensional damping control device, including wedge-shaped pile crown and a basic damping control device in wedge-shaped pile crown cylindrical cavity for increasing pile foundation shearing force and anti-settling, damping control device provides working space based on wedge-shaped pile crown；Foundation shock absorption control device includes a cavity surrounded by top plate, side plate, bottom plate, top plate is provided with opening, bottom plate is fixedly connected on wedge-shaped pile crown, the horizontal damping box slided of one energy is installed in cavity, rubber support is installed at the top of described damping box, described rubber support upper end is connected with loading plate；And the spring damping element being connected with damping box is installed on side plate.
Description
Technical field
The present invention relates to pile foundation shockproof control field, more particularly to a kind of pile foundation for reducing tall and slender structure vibratory response
Multidimensional damping control device.
Background technology
With the development of modern society, building industry enters quick developing period, and the height and complexity of building are not
Disconnected increase.The raising of painful injures and deaths cost and people's awareness of safety in earthquake disaster, it is ensured that building structure is in geological process
Under safe operation tool be of great significance.Repeatedly disaster examples show, the tall and slender structure of basic poor seismic behavior, on ground
When shake occurs, catastrophic consequence is often resulted in, such as USA Northridge Earthquake in 1994, more power transmission towers in transmission line of electricity
The serious collapse of generation, wherein being in the great majority because foundation generation destroys the situation for causing power transmission tower to collapse.
Traditional anti-shock methods generally solve anti-seismic problem to improve bearing capacity of the structure with basis in itself, for example, using
Increase component strength, increase structural damping improve foundation bearing capacity to improve its anti-seismic performance.However, increase component strength,
Component quality is consequently increased, and further resulting in the geological process that structure is subjected to also increases.Increase structural damping adjustment structure is shaken
Dynamic frequency, reduce producing effects less for geological process.The single raising foundation bearing capacity of blindness can cause again to improve anti-seismic performance
Unnecessary waste.In fact, traditional tall and slender structure, such as power transmission tower-line Fourier Series expansion technique, during earthquake power transmission tower with basis still
Together, the efficiency that seismic force is communicated up along structure is very high for build-in, structure is produced larger seismic response in itself so as to lead
Cause to destroy.Therefore, tall and slender structure tradition anti-shock methods, only increase structural strength, structural damping or improve foundation bearing capacity simultaneously
The shock resistance of tall and slender structure can not be effectively improved, it is particularly even more so when meeting with serious ruinous earthquake.Therefore cut
Disconnected or decrease efficiency of the seismic force to superstructure transmission, reduces the seismic response of superstructure, reduces earthquake on the basis of,
It can guarantee that safe operation of the building structure under geological process.
Effect of the ground motion to building is multicomponent sextuple component to be shared, including three translations during earthquake
Component and three rotative components.Either regular texture or irregular structure, structural response under multi-component earthquake excitation than
Structural response under unidirectional horizontal earthquake action is big, for irregular structure, influences even more serious.It is traditional every
Shake device such as shock isolating pedestal can only reduce or separate horizontal direction vibrations component, typically, the natural vibration period of tall and slender structure
It is longer, the problem of using antidumping and shock isolating pedestal tension after base isolation be present, it is considered that, pile foundation has good antidetonation
Performance, the earthquake of building construction pile foundation in itself is less, such as in Same Site, the building earthquake additional settlement provided with pile foundation is smaller,
Phenomena such as structure earthquake is lighter.Exactly in this context, set forth herein a kind of pile foundation multidimensional damping control device, utilizing
Increase damping control device on the basis of the good anti-seismic performance of pile foundation, realize the multidimensional shockproof control to superstructure, from
And single horizontal direction shockproof control and its existing antidumping and bearing tension problem can only be carried out by optimizing traditional earthquake isolating equipment.
The content of the invention
The purpose of the present invention is to provide a kind of device of pile foundation multidimensional shockproof control for tall and slender structure, and mainly structure is existed
The lower each level of external environment condition load excitation and vertical vibration are controlled.
To achieve the above object, the present invention uses following technical proposals：
Pile foundation multidimensional damping control device, including the wedge-shaped pile crown and peace of an increase pile foundation shearing force and anti-settling
Basic damping control device in wedge-shaped pile crown cylindrical cavity, damping control device carries based on described wedge-shaped pile crown
For working space；Described foundation shock absorption control device includes a cavity surrounded by top plate, side plate, bottom plate, and top plate is provided with
Opening, bottom plate are fixedly connected on wedge-shaped pile crown, and the horizontal damping box slided of an energy, described damping are provided with cavity
Rubber support is installed at the top of box, described rubber support upper end is connected with loading plate；And it is provided with side plate and damping box
Connected spring damping element.
Further, described damping box is made up of the maneuvering board and fixed plate being installed together up and down, fixed plate installation
On bottom plate, radial arrangement spring damping element, one end of spring damping element and fortune between the side wall and side plate of maneuvering board
Dynamic plate outer wall is mutually fixed, and the other end is connected with side wall inwall, its effect of spring damping element is spacing, reset, consume energy and
Damping, when big shake occurs, spring damping element can effectively slow down destructive power that tower body is subject to reach the purpose of antidetonation.
Further, crusherbull zone element is additionally provided with the inwall of described side plate, the crusherbull zone element is annular
Rubber strip, when maneuvering board collides with it from buffer protection function mitigate impact when horizontal mechanism and base side wall collide
Power and can effectively dissipation energy.
Further, there is cylindrical, hollow in described wedge-shaped pile crown, damping control device provides work based on being used for
Space.Described foundation shock absorption control device is encapsulated in the cylindrical, hollow of wedge-shaped pile crown.
Further, described maneuvering board is damping box upper slidable structure, and described maneuvering board passes through shearing bolt
It is connected with the fixed plate of damping box bottom, relative motion between maneuvering board and fixed plate is limited with this in small shake, works as generation
Shearing bolt is cut during big shake, and now damping box is started working.
Further, described top plate is provided with the perforate for being available for connecting superstructure.
Further, described loading plate is circular steel plate, and its top is connected with superstructure.
Further, for described rubber support quincuncial arrangement on maneuvering board, its Up/down base edge is evenly arranged spiral shell
Hole is connected by anchor bolt with maneuvering board, loading plate.
Further, described side wall sets crusherbull zone element, and described crusherbull zone element is yielding rubber, sets
On side plate, when maneuvering board collides with it from buffer protection function mitigate horizontal mechanism rushing when being collided with base side plate
Hit power and can effectively dissipation energy.
Further, described side wall arrangement antidumping snap ring, the antidumping snap ring lower surface and maneuvering board upper surface
Contact, makes it to slide in the horizontal direction to limit the vertical free degree of maneuvering board.
The pile foundation multidimensional damping control device, anti-shearing, anti-settling, damping operation principle belong to the model passively controlled
Farmland.Compared with other vibration damping control technologies, the advantages of pile foundation multidimensional damping control device of the present invention：(1) multidimensional vibration reduction controls
Device can realize that the vibration damping in multiple directions controls, and effect is preferable；(2) multidimensional vibration reduction control device can bear pulling force, be applicable
In the uplift force of the tall and slender structure with large ratio of height to width；(3) the horizontal carriage of device, be whether by uplift force or by
Lower pressure, it can play its slip effect；(4) overall structure simple structure, it is easy to process, without the input of external energy, more
Easily realize and security is higher；(5) multidimensional damping control device is set to make full use of wedge-shaped pile crown volume in wedge-shaped pile crown
Space；(6) multidimensional damping control device can be used alone, alone installed in stake or cushion cap and the contact position of structure.
The present invention pile foundation multidimensional damping control device can reduce structure level to vertical seismic response, cut-off
Or dynamic action of the earthquake to tall and slender structure is significantly reduced, and the anti-seismic performance of structure is improved, ensures the security of structure, can
Produce preferable economic benefit and social benefit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the top view illustration of pile foundation multidimensional damping control device.
Fig. 2 is the front view schematic diagram of pile foundation multidimensional damping control device.
Fig. 3 is the front view schematic diagram of pile foundation multidimensional damping control device inner cushion control device.
In figure：1 wedge-shaped pile crown, 2 damping control devices, 3 bases, 4 top plates, 5 side walls, 6 bottom plates, 7 damping boxes, 8 maneuvering boards,
9 fixed plates, 10 rubber supports, 11 yielding rubbers, 12 shearing bolts, 13 antidumping snap rings, 14 spring damping elements, 15 carryings
Plate, 16 connecting bolts.
Embodiment
The optimal embodiment of the present invention is described in detail below in conjunction with technical scheme and accompanying drawing.
The universal damping control device of pile foundation such as Fig. 1, Fig. 2 proposed by the present invention, shown in Fig. 3.Including a wedge-shaped pile crown
And damping control device, wedge-shaped pile crown include cylindrical, hollow, hollow space connects placement damping control by connecting bolt 16
Device processed, each damping control device include a box-structure, rubber support, loading plate, shearing bolt, damping box (motion
Plate, fixed plate), antidumping snap ring, spring damping element, yielding rubber etc., anchor bolt.The new pilework can directly with
Superstructure is connected.Concrete structure is as follows：
The universal damping control device of pile foundation, including wedge-shaped pile crown 1, wedge-shaped pile crown is increasing the anti-shearing, anti-of pile foundation
Settling property, and based on damping control device provide working space.Described wedge-shaped pile crown 1 includes cylindrical, hollow, described
Hollow interior placement damping device 2 is simultaneously anchored on the inwall of cylindrical, hollow by the connection of connecting bolt 16.
Foundation shock absorption control device includes a cavity surrounded by top plate 4, side plate 5, bottom plate 6, welding, the uniform cloth of side plate
Put yielding rubber 11.Bottom plate is provided with damping box 7, and is fixed thereon surface by connecting bolt.The top of the damping box 7
Slidably part is device maneuvering board 8, and maneuvering board upper surface connects with antidumping snap ring 13 and quincunx is evenly arranged five rubbers
Glue bearing 10.Described maneuvering board 8 is connected with each other with described fixed plate 9 by shearing bolt 12.
Antidumping snap ring 13 is welded on the inwall of side plate 5 to limit the vertical free degree of maneuvering board.
10 upper and lower surface of rubber support contacts with loading plate 15 and maneuvering board 8 and fixed by connecting bolt respectively to be connected
Connect.Loading plate 15 is that circular reinforcement steel plate can be connected with superstructure.
Specific implementation is as follows：
Expand excavation on novel pile basis head and form wedge-shaped pile crown 1, thus increase pile-soil interface product, it is perpendicular so as to increase
To bearing capacity and pile body shear behavior.Placement foundation shock absorption control dress is connected by connecting bolt 6 in the inner chamber of wedge-shaped pile crown 1
2 are put, top plate 4, side plate 5 and the bottom plate 6 of damping device 2 to form base 3 by being welded to connect, and the effect of base 3 is closing level
Sliding equipment, bear the uplift force that horizontal sliding equipment transmits, lower pressure and horizontal applied force.Set and subtract in the upper surface of bottom plate 6
Box 7 is shaken, the bottom of damping box 7 is fixed plate 9, and it is connected with bottom plate 6 by anchor bolt.The top of damping box 7 can be horizontal sliding
Dynamic part is maneuvering board 8, and the upper surface quincuncial arrangement rubber support 10 of maneuvering board 8 is simultaneously connected by anchor bolt, and it is led
Play the effect of vertical shockproof control, and in small shake from horizontal shock-absorbing control action.
The upper surface of rubber support 10 uses anchor bolt and the anchor connection of loading plate 15；Antidumping snap ring 13 and maneuvering board 8
Upper surface makes it to slide in the horizontal direction with contacting, to limit the 5 vertical free degree of maneuvering board.
The maneuvering board 8 of damping box 7 is connected with fixed plate 9 by shearing bolt 12, in small shake with this limit maneuvering board 8 with
Relative motion between fixed plate 9, when big shake occurs, shearing bolt 12 is cut, and now damping box 7 is started working.Spring hinders
The radial arrangement of Buddhist nun's element 14 is between maneuvering board 8 and side plate 5, one end and the maneuvering board outer wall phase of each spring damping element
Fixed, the other end is connected with side plate inwall, and its effect of spring damping element is spacing, resets, consumes energy and damping, is being occurred
During big shake, spring damping element can effectively slow down destructive power that tower body is subject to reach the purpose of antidetonation.
Side plate 5 is provided with crusherbull zone element 11, and the crusherbull zone element is ring-shaped rubber bar, is arranged on side plate,
Buffer protection function mitigates impulsive force when horizontal mechanism and base side plate collide and can from when maneuvering board collides with it
Effectively dissipation energy.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (10)
1. pile foundation multidimensional damping control device, it is characterised in that：Wedge shape including an increase pile foundation shearing force and anti-settling
Pile crown and the foundation shock absorption control device in wedge-shaped pile crown cylindrical cavity, damping based on described wedge-shaped pile crown
Control device provides working space；Described foundation shock absorption control device includes a sky surrounded by top plate, side plate, bottom plate
Chamber, top plate are provided with opening, and bottom plate is fixedly connected on wedge-shaped pile crown, and one is provided with cavity can the horizontal damping slided
Box, described damping box top are provided with rubber support, and described rubber support upper end is connected with loading plate；And pacify on side plate
Equipped with the spring damping element being connected with damping box.
2. pile foundation multidimensional damping control device as claimed in claim 1, it is characterised in that：Described damping box by pacifying up and down
Maneuvering board and the fixed plate composition being fitted together, fixed plate is arranged on bottom plate, radial between the side wall and side plate of maneuvering board
Arrange spring damping element.
3. pile foundation multidimensional damping control device as claimed in claim 1 or 2, it is characterised in that：The inwall of described side plate
On be additionally provided with crusherbull zone element.
4. pile foundation multidimensional damping control device as claimed in claim 3, it is characterised in that：Described crusherbull zone element is
Ring-shaped rubber bar.
5. pile foundation multidimensional damping control device as claimed in claim 1, it is characterised in that：Described cavity is cylindrical empty
Chamber.
6. the pile foundation multidimensional damping control device as described in claim 1 or 2 or 5, it is characterised in that：Described loading plate is
Circular steel plate, its top are connected with superstructure.
7. pile foundation multidimensional damping control device as claimed in claim 1, it is characterised in that：Described maneuvering board passes through shearing resistance
Bolt is connected with fixed plate.
8. pile foundation multidimensional damping control device as claimed in claim 1, it is characterised in that：Described rubber support includes more
Individual, it is with quincuncial arrangement on maneuvering board.
9. the pile foundation multidimensional damping control device as described in claim 1 or 8, it is characterised in that：Described rubber support
Up/down base edge is evenly arranged screw and is connected by anchor bolt with maneuvering board, loading plate.
10. pile foundation multidimensional damping control device as claimed in claim 1, it is characterised in that：Described side plate arrangement is anti-to incline
Cover snap ring, the antidumping snap ring lower surface and maneuvering board upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127426.2A CN105735367B (en) | 2016-03-07 | 2016-03-07 | A kind of pile foundation multidimensional damping control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127426.2A CN105735367B (en) | 2016-03-07 | 2016-03-07 | A kind of pile foundation multidimensional damping control device |
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| CN105735367A CN105735367A (en) | 2016-07-06 |
| CN105735367B true CN105735367B (en) | 2017-12-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016929A (en) * | 2019-01-15 | 2019-07-16 | 深圳市现代城市建筑设计有限公司 | A kind of pile foundation for Site of Collapsible Loess |
| CN113622536B (en) * | 2021-08-09 | 2022-05-20 | 交通运输部公路科学研究所 | Seismic isolation and reduction support for resisting vertical seismic oscillation |
| CN115621964B (en) * | 2022-10-25 | 2023-07-21 | 保定通力电器设备有限公司 | Lightning arrester with shock-absorbing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3661752B2 (en) * | 1999-02-03 | 2005-06-22 | 株式会社大林組 | Pile seismic isolation structure |
| CN2727279Y (en) * | 2004-09-01 | 2005-09-21 | 广州大学 | Three-dimensional rubber shake-insulating holder |
| CN201722603U (en) * | 2010-07-09 | 2011-01-26 | 中国建筑科学研究院 | Variable-stiffness vibration-insulation support |
| CN103643627A (en) * | 2013-12-20 | 2014-03-19 | 中铁二院工程集团有限责任公司 | Damping structure for continuous rigid frame pier with limited constraint |
| CN104455189A (en) * | 2014-10-30 | 2015-03-25 | 东南大学 | Three-dimensional isolation support |
| CN205421356U (en) * | 2016-03-07 | 2016-08-03 | 山东大学 | Pile foundation multidimension shock attenuation controlling means |
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