CN101408029A - Anti-seismic foundation - Google Patents
Anti-seismic foundation Download PDFInfo
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- CN101408029A CN101408029A CNA2008100462819A CN200810046281A CN101408029A CN 101408029 A CN101408029 A CN 101408029A CN A2008100462819 A CNA2008100462819 A CN A2008100462819A CN 200810046281 A CN200810046281 A CN 200810046281A CN 101408029 A CN101408029 A CN 101408029A
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Abstract
The invention relates to the building technology field, in particular to an earthquake proof foundation which consists of a foundation main body, a concrete cover plate, a foundation soleplate, a downward oblique bar layer, an upward oblique bar layer, an upward longitudinal bar layer, an upward transverse bar layer, a foundation pit soleplate, a retaining wall, a quenched steel cover plate, a quenched steel support plate and a quenched steel clapboard. The foundation main body is positioned in the foundation pit, the foundation soleplate is a horizontal quenched steel plate, four bar layers forming an angle with one another are arranged between the foundation soleplate and the foundation pit soleplate, each bar layer consists of a row of cylindrical quenched steel bars which are horizontally arranged and have gaps with each other, and one horizontally positioned quenched steel clapboard is arranged between every two adjacent bar layers. The retaining wall is positioned at the peripheral walls of the foundation pit, and spaces are remained between the retaining wall and the foundation main body as well as the downward oblique bar layer, the upward oblique bar layer, the upward longitudinal bar layer, the upward transverse bar layer and the edges of the quenched steel clapboard.
Description
Technical field
The present invention relates to technical field of buildings, particularly relate to a kind of earthquake proof foundation.
Background technology
Horizontal seismic force is main to the harm of building, one because of the earthquake centre point horizontal amplitude of vibration in vast earthquake district in addition much larger than vertical amplitude of vibration; Two have enough knowledge to vertical gravity because of people, so bigger surplus capacity opposing vertical seismic force is generally arranged, and horizontal shearing resistance is the weak link of building, this is to be far smaller than compression strength by the shearing strength of the members such as brick, concrete own, adding level generally is straight joint again, mortar and with the adhesive strength of the masonries such as brick often less than due to the reasons such as masonry.
The patent No. is that 00112457.9 " the anti-macroseism of slippage building foundation " utilizes two shiny surfaces that are in contact with one another mutually to slide to reach when earthquake to weaken earthquake to the effect of the horizontal destructive power of building.This scheme has following defective:
1. the friction factor of shiny surface is low inadequately.Mention in this application and adopt concrete waxing or plastic sheeting, plastic plate to serve as shiny surface, even and concrete adopts waxing or apply oil, its friction factor is reduced significantly, and the most smooth polytetrafluoroethylene (PTFE) in the plastics, its friction factor is also between 0.04-0.1.
2. the relative motion mode of two shiny surfaces has adopted sliding type.For same material, the coefficient of sliding friction is much larger than coefficient of rolling friction, and therefore in anti-seismic structure, slip is not best relative motion mode.
3. the intensity on shiny surface surface is low.Because what bear between two shiny surfaces is the pressure of whole building, the plastic sheeting on two shiny surface surfaces, plastic plate or the smooth surface layer that forms with the concrete waxing are under huge pressure, can be destroyed under huge frictional force when motion, such result is that the coefficient of friction of two shiny surfaces increases greatly, reduces anti seismic efficiency.
The patent No. is 02110560.X's " a kind of Antiseismic building foundation " ball layer of utilizing material such as quenching steel ball to form, utilized the less advantage of coefficient of rolling friction, but this scheme also has following some disadvantage:
1. the ball layer is not an individual layer, but the accumulation body of many pearls, promptly the centre of sphere connecting line of adjacent ball might not be a horizon.This just makes steel ball is not the horizontal movement that layering takes place under the effect of earthquake horizontal force, but the motion that gets muddled.Do not reach the effect of effective weakening earthquake horizontal force.
2. under horizontal force action, each ball rubs with a plurality of balls that contact with it, and inhibition has been played in its rolling, has also reduced anti seismic efficiency.
3. the medium of damping---ball each other or all be to contact between ball and the steel plate, this has just improved building greatly and has been applied to pressure on each ball, can cause the distortion of ball, thereby more increase the resistance that ball rolls.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, provides between a kind of ground and the foundation ditch bottom surface frictional force minimum, and has sufficient intensity can bear the pressure of building again, when earthquake, the earthquake proof foundation of free horizontal movement can take place between ground and the foundation ditch bottom surface.
The scheme that solves the technology of the present invention problem is: anti-seismic foundation by foundation body, concrete cover, substrate plate, declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer, base plate of foundation pit, retaining wall, hardened steel cover plate, hardened steel support plate and hardened steel dividing plate consist of.Wherein, foundation body is in the foundation ditch, and the shoulder of foundation body has a platform, and the edge upper surface of this platform and foundation ditch is fixed with the hardened steel support plate respectively, is stamped the concrete cover that the bottom surface is fixed with the hardened steel cover plate on the hardened steel support plate.The bottom of foundation body be with foundation body in reinforcing bar be welded as holistic ground substrate plate, the ground substrate plate is horizontal quenched nickelclad.Base plate of foundation pit is anchored in the foundation ditch bottom, also is horizontal quenched nickelclad.Four rod layers are arranged between ground substrate plate and the base plate of foundation pit, each rod layer by a row of horizontal arrange, gapped cylindrical quenching rod iron forms each other.The hardened steel dividing plate that a horizontal positioned is all arranged between every two-layer neighbouring rod layer.The order that stacks of rod layer is followed successively by declivity rod layer, incline rod layer, vertical bar layer and transverse rod layer from down to up.Every rod iron of declivity rod layer and the vertical equity axis angle at 45 ° of foundation body; Incline rod layer is in the horizontal direction vertical with every rod iron of declivity rod layer; Every rod iron of vertical bar layer is vertical with the vertical equity axis of foundation body; Every rod iron of transverse rod layer is parallel with the vertical equity axis of foundation body.Retaining wall is positioned at the wall of foundation ditch, and leaves the space between the edge of retaining wall and foundation body and declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer and hardened steel dividing plate.
Adopt such scheme, can reach following effect:
1. during earthquake, because building its own inertial, add between ground basal surface and the pit foundation bottom surface owing to declivity rod layer, go up oblique rod layer, go up the rolling action of vertical rod layer and last horizontal bar layer, the horizontal force that horizontal jitter produced that the face of land takes place is difficult to be sent on the building body, earthquake only becomes force of rolling friction between the hardened steel to the horizontal force of building, so earthquake is weakened greatly to the horizontal destructive power of building.
2. because among the present invention, the resistance that overcomes because of earthquake horizontal force generation displacement between at the bottom of ground basal part and the foundation ditch is the friction between the quenching metal covering, and be rolling friction, its friction factor only is 0.001, therefore, the most of horizontal destructive power of the horizontal movement of the earth is difficult to pass to building by ground during earthquake.
3. because the friction media that adopts between at the bottom of ground basal part and the foundation ditch is columniform quenching rod iron, hardened steel also has stronger resistance to compression, tension and shearing strength when having low-friction coefficient, can resist between the gravity of building and each rod layer deformation that mutually extruding produces and be not destroyed, when having guaranteed to be subjected to displacement at the bottom of ground and the foundation ditch, that rolls carries out smoothly, has guaranteed the effect of antidetonation.
4. because the present invention has adopted the quenching rod iron layer of 4 layers of obstructed direction, having guaranteed between pit foundation bottom and the ground basal part can be in east, south, west, north, northeast, the southeast, northwest, the free relative displacements of southwestern eight directions generation, even the main level direction of motion of earthquake is not just in time on 8 above-mentioned directions, the component of its horizontal movement direction on one of these 8 directions also can cause the relative motion of ground and foundation ditch bottom.
5. because each frictional layer of the present invention adopts is rod iron rather than steel ball, and the rod iron of adjacent two layers is all not parallel, and this has only just guaranteed between layers can occurred level motion, and can not resemble the motion that gets muddled between the ball of accumulation.
6. because gapped between the adjacent rod iron in each rod iron layer, this just makes rod iron when rolling, and does not have each other frictional force, has further guaranteed the free degree of each rod iron interlayer horizontal movement.
7. all be that line contact with hardened steel dividing plate, rod iron with the ground substrate plate with base plate of foundation pit, rod iron owing to rod iron, contact with the point that adopts ball and compare to have bigger contact area, have higher compression strength.
In sum, the present invention has played good anti seismic efficiency.
The specific embodiment
Anti-seismic foundation by foundation body, concrete cover, substrate plate, declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer, base plate of foundation pit, retaining wall, hardened steel cover plate, hardened steel support plate and hardened steel dividing plate consist of.Wherein, foundation body is in the foundation ditch, and the shoulder of foundation body has a platform, and the edge upper surface of this platform and foundation ditch is fixed with the hardened steel support plate respectively, is stamped the concrete cover that the bottom surface is fixed with the hardened steel cover plate on the hardened steel support plate.The bottom of foundation body be with foundation body in reinforcing bar be welded as holistic ground substrate plate, the ground substrate plate is horizontal quenched nickelclad.Base plate of foundation pit is anchored in the foundation ditch bottom, also is horizontal quenched nickelclad.Four rod layers are arranged between ground substrate plate and the base plate of foundation pit, each rod layer by a row of horizontal arrange, gapped cylindrical quenching rod iron forms each other.The hardened steel dividing plate that a horizontal positioned is all arranged between every two-layer neighbouring rod layer.The order that stacks of rod layer is followed successively by declivity rod layer, incline rod layer, vertical bar layer and transverse rod layer from down to up.Every rod iron of declivity rod layer and the vertical equity axis angle at 45 ° of foundation body; Incline rod layer is in the horizontal direction vertical with every rod iron of declivity rod layer; Every rod iron of vertical bar layer is vertical with the vertical equity axis of foundation body; Every rod iron of transverse rod layer is parallel with the vertical equity axis of foundation body.Retaining wall is positioned at the wall of foundation ditch, and leaves the space between the edge of retaining wall and foundation body and declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer and hardened steel dividing plate.
Claims (1)
1. anti-seismic foundation, by foundation body, concrete cover, the ground substrate plate, declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer, base plate of foundation pit, retaining wall, the hardened steel cover plate, hardened steel support plate and hardened steel dividing plate consist of, it is characterized in that: foundation body is in the foundation ditch, the shoulder of foundation body has a platform, the edge upper surface of this platform and foundation ditch is fixed with respectively the hardened steel support plate, on the hardened steel support plate, be stamped the concrete cover that the bottom surface is fixed with the hardened steel cover plate, the bottom of foundation body be with foundation body in reinforcing bar be welded as holistic ground substrate plate, the ground substrate plate is horizontal quenched nickelclad, base plate of foundation pit is anchored in the foundation ditch bottom, it also is horizontal quenched nickelclad, four rod layers are arranged between ground substrate plate and the base plate of foundation pit, each rod layer is arranged by a row of horizontal, gapped cylindrical quenching rod iron forms each other, the hardened steel dividing plate that a horizontal positioned is all arranged between every two-layer neighbouring rod layer, the order that stacks of rod layer is followed successively by declivity rod layer from down to up, incline rod layer, vertical bar layer and transverse rod layer, every rod iron of declivity rod layer and the vertical equity axis angle at 45 ° of foundation body; Incline rod layer is in the horizontal direction vertical with every rod iron of declivity rod layer; Every rod iron of vertical bar layer is vertical with the vertical equity axis of foundation body; Every rod iron of transverse rod layer is parallel with the vertical equity axis of foundation body, retaining wall is positioned at the wall of foundation ditch, and leaves the space between the edge of retaining wall and foundation body and declivity rod layer, incline rod layer, vertical bar layer, transverse rod layer and hardened steel dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100462819A CN100570078C (en) | 2008-10-15 | 2008-10-15 | Earthquake proof foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100462819A CN100570078C (en) | 2008-10-15 | 2008-10-15 | Earthquake proof foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101408029A true CN101408029A (en) | 2009-04-15 |
| CN100570078C CN100570078C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100462819A Expired - Fee Related CN100570078C (en) | 2008-10-15 | 2008-10-15 | Earthquake proof foundation |
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| Country | Link |
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| CN (1) | CN100570078C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914922A (en) * | 2010-07-28 | 2010-12-15 | 河海大学 | Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof |
| CN105714929A (en) * | 2016-02-12 | 2016-06-29 | 刘湘静 | Seismic isolation building structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029423A (en) * | 1989-10-24 | 1991-07-09 | Kornylak Corporation | Vibration resistant building construction |
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2008
- 2008-10-15 CN CNB2008100462819A patent/CN100570078C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914922A (en) * | 2010-07-28 | 2010-12-15 | 河海大学 | Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof |
| CN101914922B (en) * | 2010-07-28 | 2011-12-14 | 河海大学 | Geotextile bag shock absorption and vibration isolation building foundation, and construction method and application thereof |
| CN105714929A (en) * | 2016-02-12 | 2016-06-29 | 刘湘静 | Seismic isolation building structure |
| CN105714929B (en) * | 2016-02-12 | 2018-03-16 | 苏州市吴中区东吴建筑有限责任公司 | One kind is exempted to shake building structure |
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| Publication number | Publication date |
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| CN100570078C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20101015 |