CN116180815A - Connecting rod swing earthquake super surface - Google Patents
Connecting rod swing earthquake super surface Download PDFInfo
- Publication number
- CN116180815A CN116180815A CN202310165252.9A CN202310165252A CN116180815A CN 116180815 A CN116180815 A CN 116180815A CN 202310165252 A CN202310165252 A CN 202310165252A CN 116180815 A CN116180815 A CN 116180815A
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- China
- Prior art keywords
- connecting rod
- support column
- earthquake
- super
- spring hinge
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- 239000002689 soil Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a connecting rod swing seismic super-surface. The miniaturization of the structural size of the seismic subsurface and lower layout cost are key technologies for realizing the seismic subsurface engineering application. The invention comprises a plurality of connecting rod swinging devices which are distributed at equal intervals, wherein the connecting rod swinging devices enclose a protected building; the connecting rod swinging device comprises a support column, a connecting rod, a mass block and a spring hinge; the support column is vertical to the ground surface, and the bottom of the support column is buried in the soil layer of the ground surface; the top of the support column is provided with a spring hinge which is hinged with one end of the connecting rod; the other end of the connecting rod is fixedly connected with a mass block. The length of the connecting rod and the height of the supporting column can be combined and adjusted by changing the size of the mass block, so that the size of the super-surface structure can be accepted by practical engineering; the connecting rod swing earthquake super surface can be distributed around the built building, so that the earthquake resistance of the built building is improved.
Description
Technical Field
The invention belongs to the technical field of building earthquake resistance, and particularly relates to a connecting rod swing earthquake super-surface.
Background
The stability and safety of the tunnel structure can be effectively ensured by monitoring and measuring in the tunnel construction and operation stages. Traditional earthquakes are one of the serious natural disasters faced by humans. When an earthquake occurs, urban or important building structure facilities with dense population are often destroyed deadly, and huge casualties and property losses are caused. At present, the earthquake-resistant measures built in the building structure are widely applied, and although the damage degree of the earthquake to the structure can be reduced, the earthquake-resistant structure and the structure under the medium earthquake and the large earthquake can be damaged difficultly. At the same time, these anti-seismic measures often make it difficult to effectively protect established buildings from earthquakes, and ancient and early-year built building structures still face significant earthquake hazards.
The earthquake is initiated by sudden movements of the earth's crust, propagating in the form of seismic bulk waves and surface waves. The method is characterized in that the influence range of the earthquake body wave is limited, and the energy carried by the earthquake surface wave is large and is not easy to attenuate along with the increase of the propagation distance, so that the method is a key factor for causing large-scale serious damage in the earthquake event. The earthquake super-surface capable of directly attenuating the propagation of the earthquake surface wave can overcome the problems existing in the traditional earthquake-resistant measures, and is an innovative earthquake-resistant technology. However, the existing seismic super-surfaces still have the problems of oversized structure and high layout cost, and are difficult to apply in engineering. Therefore, miniaturization of the structural dimensions and lower layout cost of the seismic subsurface are key technologies for achieving seismic subsurface engineering applications.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a connecting rod swing seismic super-surface, which comprises a plurality of connecting rod swinging devices which are equally spaced and closely arranged, and a protected structure or a protected area is enclosed in the center in a closed manner, so that the seismic surface waves coming in any direction can be attenuated by the seismic super-surface, and the connecting rod swing seismic super-surface has small structural size and low layout cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a connecting rod swing earthquake super surface is characterized in that: the device comprises a plurality of connecting rod swinging devices which are distributed at equal intervals, wherein the connecting rod swinging devices enclose a protected building;
the connecting rod swinging device comprises a support column, a connecting rod, a mass block and a spring hinge;
the support column is vertical to the ground surface, and the bottom of the support column is buried in the surface soil layer;
the top of the support column is provided with a spring hinge which is hinged with one end of the connecting rod;
the other end of the connecting rod is fixedly connected with a mass block.
Further, the support column material parameters are: young's modulus: e (E) st =210 Gpa, poisson ratio μ st =0.3 and mass density ρ st ＝7850kg/m 3 ；
Further, the spring hinge is wire-elastic, allowing a range of deformation within
The rigidity is not lower than 1000 N.m/rad. The specific stiffness value of the spring hinge is determined according to soil conditions and the height of the support column.
The invention has the beneficial effects that:
1) The length of the connecting rod and the height of the supporting column can be combined and adjusted by changing the size of the mass block, so that the size of the super-surface structure can be accepted by practical engineering;
2) The connecting rod swing earthquake super-surface can be composed of only one material, and the fixing mode with the ground surface is simple and convenient, so that the large-scale construction is easy;
3) The connecting rod swing earthquake super-surface can be distributed around a built building, and the earthquake resistance of the built building is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a link-swinging seismic subsurface deployed around a building in accordance with the present invention;
FIG. 2 is a schematic diagram of the composition of the link swinging device of the present invention;
FIG. 3 is a schematic view of the link swing apparatus of the present invention in a stationary state;
fig. 4 is a schematic view showing an operation state of the link swinging device of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention realizes small-size earthquake super-surface through the effective medium theory and the mutual resonance of the soil-structure, and encloses the protected structure or the protected area in the center in a closed manner, so that the earthquake surface waves coming in any direction can be attenuated by the earthquake super-surface, thereby protecting the appointed building or key area.
As shown in fig. 1, the invention comprises a plurality of link swinging devices which are distributed at equal intervals, wherein the link swinging devices enclose a protected building;
as shown in fig. 2, the link swinging device comprises a support column, a link, a mass block and a spring hinge;
the support column is vertical to the ground surface, and the bottom of the support column is buried in the soil layer of the ground surface; the whole connecting rod swinging device is fixed, and the fixing mode enables the supporting columns to be conveniently distributed, so that the limitation of soil layer conditions is not easy; the parameters of the support column materials are as follows: young's modulus: e (E) st =210 Gpa, poisson ratio μ st =0.3 and mass density ρ st ＝7850kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The support column can be made of Q235 steel or directly made of profile steel, and the total height H of the support column 0 And depth of implantation H s The soil layer is determined by the soil layer property, but the relative fixation between the soil layer and the support column is required to be ensured;
the top of the support column is provided with a spring hinge which is hinged with one end of the connecting rod, so that the transmission of the swinging force of the connecting rod is realized, and the elastic restoring force is provided for the swinging of the connecting rod; the spring hinge being wire-elastic and allowing a range of deformation
The rigidity is not lower than 1000 N.m/rad. The specific stiffness value of the spring hinge is determined according to soil layer conditions and the height of the supporting column;
the other end of the connecting rod is fixedly connected with a mass block; regulating and controlling the moment of inertia of the whole connecting rod to the hinge point; the length of the connecting rod and the height of the supporting column can be adjusted in a combined way by changing the size of the mass block, so that the structural size can be accepted by practical engineering.
The working principle of the invention is as follows:
under the condition that no earthquake event occurs, the connecting rod swinging device is in a static state, and a schematic diagram of the structure under the action of dead weight is shown in figure 3;
as shown in fig. 4, when a seismic surface wave in any direction is incident to the link swinging seismic super surface, the support column vibrates under the excitation action of the seismic surface wave, so that the hinged link swings; according to the theory of effective media, the top of the support column can be subjected to transverse force and longitudinal force caused by swinging through interaction of the swinging mass block-connecting rod device and the ground. Because the transverse force has a certain eccentricity with the fixed end of the support column, the swinging connecting rod can also bring additional bending moment, and the swinging transverse force, the swinging longitudinal force and the additional bending moment of the connecting rod can cooperate with the earth surface resonance of the earth crust, so that the attenuation and regulation of the seismic surface wave are realized.
The content of the invention is not limited to the examples listed, and any equivalent transformation to the technical solution of the invention that a person skilled in the art can take on by reading the description of the invention is covered by the claims of the invention.
Claims (3)
1. A connecting rod swing earthquake super surface is characterized in that: the device comprises a plurality of connecting rod swinging devices which are distributed at equal intervals, wherein the connecting rod swinging devices enclose a protected building;
the connecting rod swinging device comprises a support column, a connecting rod, a mass block and a spring hinge;
the support column is vertical to the ground surface, and the bottom of the support column is buried in the surface soil layer;
the top of the support column is provided with a spring hinge which is hinged with one end of the connecting rod;
the other end of the connecting rod is fixedly connected with a mass block.
2. A link-oscillating seismic subsurface as defined in claim 1 wherein: the material parameters of the support column are as follows: young's modulus: e (E) st =210 Gpa, poisson ratio μ st =0.3 and mass density ρ st ＝7850kg/m 3 。
3. A link-oscillating seismic subsurface as defined in claim 2 wherein: the spring hinge is wire elastic and allows deformation in the range of
The rigidity is not lower than 1000 N.m/rad. The specific stiffness value of the spring hinge is determined according to soil conditions and the height of the support column. />
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165252.9A CN116180815A (en) | 2023-02-24 | 2023-02-24 | Connecting rod swing earthquake super surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165252.9A CN116180815A (en) | 2023-02-24 | 2023-02-24 | Connecting rod swing earthquake super surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116180815A true CN116180815A (en) | 2023-05-30 |
Family
ID=86450359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310165252.9A Pending CN116180815A (en) | 2023-02-24 | 2023-02-24 | Connecting rod swing earthquake super surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116180815A (en) |
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2023
- 2023-02-24 CN CN202310165252.9A patent/CN116180815A/en active Pending
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