CN213061660U - Seismic isolation and reduction system and bridge - Google Patents
Seismic isolation and reduction system and bridge Download PDFInfo
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- CN213061660U CN213061660U CN202020520706.1U CN202020520706U CN213061660U CN 213061660 U CN213061660 U CN 213061660U CN 202020520706 U CN202020520706 U CN 202020520706U CN 213061660 U CN213061660 U CN 213061660U
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Abstract
The utility model relates to an subtract shock insulation system and bridge, include: a bridge pier; the main beams are arranged above the bridge piers at intervals; the first seismic isolation and reduction mechanism is connected between the pier and the main beam and is arranged along the transverse direction; and the second seismic isolation and reduction mechanism is connected between the main beam and the pier and is arranged along the longitudinal direction, and the second seismic isolation and reduction mechanism and the first seismic isolation and reduction mechanism are arranged in an orthogonal mode. When an earthquake occurs in the external environment, the first seismic isolation and reduction mechanism and the second seismic isolation and reduction mechanism can work in a cooperative mode at the same time, strong vibration generated by the earthquake is forcedly decomposed along respective motion directions, namely, the orthogonal separation of transverse and longitudinal motions is realized, so that the vibration in two different directions is respectively reduced or eliminated, the vibration damage of the earthquake to the bridge is greatly weakened, the vibration absorption and the shock resistance of the bridge are enhanced, and the safe and reliable service of the bridge under the earthquake environment is further guaranteed.
Description
Technical Field
The utility model relates to a building subtracts isolation technology field, especially relates to an subtract isolation system and bridge.
Background
In high-intensity areas, in order to improve the anti-seismic performance of bridges, shock absorption and isolation systems with different structural forms and functions are widely applied to bridges so as to ensure the reliable and safe service of the bridges. Seismic mitigation and isolation systems generally include viscous dampers, friction pendulums, and the like. In the prior art, the viscous damper and the friction pendulum are usually used independently in the use form, but the respective seismic isolation and reduction capabilities have corresponding defects, the seismic isolation and reduction effect is general, and the safety and the integrity of the bridge in the earthquake disaster are difficult to ensure.
SUMMERY OF THE UTILITY MODEL
Based on the above, there is a need for providing an earthquake isolation and reduction system and a bridge, and the earthquake isolation and reduction system and the bridge aim to solve the problems that the earthquake isolation and reduction capability and effect are general and the earthquake safety of the bridge is difficult to ensure in the prior art.
The technical scheme is as follows:
in one aspect, the present application provides an earthquake mitigation and isolation system, comprising:
a bridge pier;
the main beams are arranged above the bridge piers at intervals;
the first seismic isolation and reduction mechanism is connected between the pier and the main beam and is arranged along the transverse direction; and
and the second seismic isolation and reduction mechanism is connected between the main beam and the pier and is arranged along the longitudinal direction, and the second seismic isolation and reduction mechanism and the first seismic isolation and reduction mechanism are arranged in an orthogonal mode.
The seismic isolation and reduction system is applied to the bridge and used for improving the seismic isolation and reduction capacity of the bridge and ensuring safe and reliable service under extreme conditions such as earthquakes. Particularly, the first seismic isolation and reduction mechanism and the second seismic isolation and reduction mechanism are installed between the main beam and the bridge pier and play a role in assembling and connecting the bridge pier and the main beam. Because the first seismic isolation and reduction mechanism is arranged along the transverse direction of the bridge, and the second seismic isolation and reduction mechanism is arranged along the longitudinal direction of the bridge, the first seismic isolation and reduction mechanism and the second seismic isolation and reduction mechanism can mutually form an orthogonal structure arrangement. When an earthquake occurs in the external environment, the first seismic isolation and reduction mechanism and the second seismic isolation and reduction mechanism can work in a cooperative mode at the same time, strong vibration generated by the earthquake is forcedly decomposed along respective motion directions, namely, the orthogonal separation of transverse and longitudinal motions is realized, so that the vibration in two different directions is respectively reduced or eliminated, the vibration damage of the earthquake to the bridge is greatly weakened, the vibration absorption and the shock resistance of the bridge are enhanced, and the safe and reliable service of the bridge under the earthquake environment is further guaranteed.
The technical solution of the present application is further described below:
in one embodiment, the seismic mitigation and isolation system further comprises a capping beam, and the capping beam is connected between the pier and the first seismic mitigation and isolation mechanism.
In one embodiment, the first seismic isolation and reduction mechanism includes a first fastening component, a support body, a rotating body, a swinging body and a second fastening component, the first fastening component is disposed on the cover beam and connected with the support body, the rotating body is rotatably disposed on the support body, the second fastening component is disposed on the main beam and connected with the swinging body, and the swinging body is rotatably connected with the rotating body.
In one embodiment, the rotating body is a spherical crown fixedly arranged on one of the support body or the swinging body, and the other one of the support body or the swinging body is concavely provided with a spherical groove matched with the spherical surface of the spherical crown.
In one embodiment, the second seismic mitigation and isolation mechanism includes a cylinder, a viscous damping medium disposed in the cylinder, and a piston body slidably disposed in the cylinder, the cylinder is connected to one of the cover beam or the main beam, and the piston body is connected to the other of the cover beam or the main beam.
In one embodiment, the cylinder is hinged to one of the cover beam or the main beam, and the piston body is hinged to the other of the cover beam or the main beam.
In one embodiment, the second seismic mitigation and isolation mechanism further includes a first stiffening plate and a second stiffening plate, the first stiffening plate is disposed on the cover beam and hinged to the cylinder, and the second stiffening plate is disposed on the main beam and hinged to the piston body.
In one embodiment, the second seismic mitigation and isolation mechanism further comprises a third fastening assembly and a fourth fastening assembly, the first stiffening plate is locked on the cap beam through the third fastening assembly, and the second stiffening plate is locked on the main beam through the fourth fastening assembly.
In one embodiment, the wall of the cylinder barrel is provided with a medium inlet and outlet hole communicated with the barrel cavity; and a lifting lug is further arranged on the cylinder barrel and/or the piston body.
In addition, the application also provides a bridge which comprises the seismic isolation and reduction system.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of an earthquake reduction and isolation system according to an embodiment of the present invention;
fig. 2 is a schematic top view of the structure of fig. 1.
Description of reference numerals:
10. a bridge pier; 20. a main beam; 30. a first seismic mitigation and isolation mechanism; 31. a first fastening component; 32. a support body; 33. a swinging body; 34. a second fastening component; 40. a second seismic mitigation and isolation mechanism; 41. a cylinder barrel; 42. a piston body; 43. a first stiffener plate; 44. a second stiffener plate; 45. a third fastening component; 46. and a fourth fastening component.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
It should be noted that the "first convex body" may be "a part of the first mounting component", that is, the "first convex body" is integrally formed with "the other part of the first mounting component"; or a separate member which can be separated from the other parts of the first mounting part, namely the first convex body can be manufactured separately and then combined with the other parts of the first mounting part into a whole.
Equivalently, the "body" and the "certain part" can be parts of the corresponding "component", i.e., the "body" and the "certain part" are integrally manufactured with other parts of the "component"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.
It should be noted that the "first mounting part" may be one of the parts of the "mounting unit" module, that is, the "mounting unit is modularly assembled with the" other members of the mounting unit "; or may be relatively independent from the "other components of the mounting unit", separable, i.e. modularly assembled with the "other components of the mounting unit" in the present device. Equivalently, the components included in the unit, the assembly, the mechanism and the device can be flexibly combined, and can be produced in a modularized mode according to actual needs, so that the modularized assembly is convenient. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.
Embodiments of the present application provide a bridge, which may be any structure or type of bridge in the prior art, such as, but not limited to, a viaduct, a sea-crossing bridge, and the like. Which includes a bridge body and a pier 10 as main members. Wherein, the bridge body is erected on a plurality of piers 10 which are arranged at intervals and can be normally used.
In order to ensure the reliability and safety of the bridge under extreme conditions such as earthquake and the like, the bridge is also provided with an earthquake reduction and isolation system for improving the earthquake resistance and shock absorption capacity of the bridge and avoiding the structural irreversible damage of the bridge due to the influence of the earthquake.
As shown in fig. 1 and 2, for the seismic mitigation and isolation system shown in an embodiment of the present application, the seismic mitigation and isolation system integrates a composite seismic mitigation and isolation mechanism, a main bearing member main beam 20 of a bridge body and a pier 10, and the composite seismic mitigation and isolation mechanism is installed between the pier 10 and the main beam 20 to mitigate damage caused by ground transmitted to the bridge body through the pier 10.
Specifically, the main girders 20 are arranged above the piers 10 at intervals. Preferably, the two piers 10 are grouped into two, and the two piers 10 in each group are symmetrically installed below two sides of the main girder 20 in the width direction to form a balanced support for the bridge body. It is understood that the pier 10 includes a plurality of groups and is arranged at regular intervals along the length direction of the bridge body. So as to meet the erection requirement of the bridge length extension.
Referring to fig. 1, the composite seismic mitigation and isolation mechanism includes a first seismic mitigation and isolation mechanism 30 and a second seismic mitigation and isolation mechanism 40. The first seismic isolation and reduction mechanism 30 is connected between the pier 10 and the main beam 20 and is arranged along the transverse direction; the second seismic isolation and reduction mechanism is connected between the main beam 20 and the pier 10 and is arranged along the longitudinal direction, and the second seismic isolation and reduction mechanism 40 and the first seismic isolation and reduction mechanism 30 are arranged in an orthogonal mode. It will be appreciated that the first seismic mitigation mechanism 30 has motion in a lateral direction and the second seismic mitigation mechanism 40 has motion in a longitudinal direction.
In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the seismic isolation and reduction system is applied to the bridge and used for improving the seismic isolation and reduction capacity of the bridge and ensuring safe and reliable service under extreme conditions such as earthquakes. Specifically, the first seismic isolation and reduction mechanism 30 and the second seismic isolation and reduction mechanism 40 are both installed between the main beam 20 and the pier 10, and function to assemble and connect the pier 10 and the main beam 20. Because the first seismic isolation and reduction mechanism 30 is arranged along the transverse direction of the bridge, and the second seismic isolation and reduction mechanism 40 is arranged along the longitudinal direction of the bridge, the first seismic isolation and reduction mechanism 30 and the second seismic isolation and reduction mechanism 40 can mutually form an orthogonal structural arrangement. When an earthquake occurs in the external environment, the first seismic mitigation and isolation mechanism 30 and the second seismic mitigation and isolation mechanism 40 can work in a cooperative mode at the same time, strong vibration generated by the earthquake is forcedly decomposed along respective motion directions, namely, the orthogonal separation of transverse and longitudinal motions is realized, so that the vibration in two different directions is respectively reduced or eliminated, the vibration damage of the earthquake to the bridge is greatly weakened, the vibration absorption and the shock resistance of the bridge are enhanced, and the bridge is further beneficial to ensuring the safe and reliable service of the bridge in the earthquake environment. In addition, the first seismic isolation and reduction mechanism 30 and the second seismic isolation and reduction mechanism 40 respectively play their own roles and do not interfere with each other.
Referring to fig. 1, on the basis of the above embodiment, in order to ensure that the pier 10 is structurally sound and will not be damaged by structural collapse due to excessive load, considering that the load of the main beam 20 of the bridge body is large, the seismic mitigation and isolation system further includes a capping beam connected between the pier 10 and the first seismic mitigation and isolation mechanism 30. It is understood that the capping beam is a rectangular concrete block having a certain design thickness and cross-sectional area, and it is understood that it is a cross beam which is erected on the top of the pier 10. Because it has certain design thickness and great cross-sectional area, therefore self structural strength and rigidity are good to can be fine support, transmission and the distribution top girder 20 because of the load that the gravity exerted, and then reach the effect of protection pier 10. It should be noted that, in other embodiments, the capping beam may also be made of other structural shapes or made of other materials, which are not described herein.
The first seismic isolation and reduction mechanism 30 has movable buffering capacity, so that the first seismic isolation and reduction mechanism is connected between the cap beam and the main beam 20, the transmission of ground vibration to the transverse direction of the bridge body can be relieved and blocked, and the adverse effect of earthquake on the bridge is weakened.
Referring to fig. 1 and fig. 2, in an embodiment, the first seismic isolation and reduction mechanism 30 includes a first fastening component 31, a support body 32, a rotating body, a swinging body 33, and a second fastening component 34, the first fastening component 31 is disposed on the cover beam and connected to the support body 32, the rotating body is rotatably disposed on the support body 32, the second fastening component 34 is disposed on the main beam 20 and connected to the swinging body 33, and the swinging body 33 is rotatably connected to the rotating body. Wherein, first fastening component 31 is sleeve and bolt, and the one end anchor of bolt is at the top surface of bent cap, and the extension passes behind the sleeve and is fixed with support body 32 spiro union, realizes from this that support body 32 installs on the bent cap, simple structure, and joint strength is high. Preferably, the number of the first fastening components 31 is two or more, so as to further improve the assembling strength of the support body 32. Similarly, the second fastening assembly 34 has the same structural composition as the first fastening assembly 31, so that the swinging body 33 can be reliably assembled and fixed to the bottom of the main beam 20. At this time, since the oscillating body 33 is rotatably connected to the support body 32 through the rotating body, even if an earthquake occurs and the earthquake transmits the vibration in the lateral direction to the bridge, since the support body 32 can rotate and oscillate relative to the oscillating body 33, the influence of the lateral seismic wave on the bridge can be effectively reduced or even eliminated.
In addition, the outer part of the sleeve and the bolt part of the first fastening assembly 31, which is exposed out of the top surface of the bent cap, is covered with a protective layer formed by solidification of dry and hard mortar, so that the sleeve and the bolt are prevented from being directly exposed in the environment and easily damaged by moisture and corrosion.
Specifically, in an embodiment, the rotating body is a spherical cap fixedly disposed on one of the support body 32 or the swinging body 33, and a spherical groove matched with a spherical surface of the spherical cap is concavely disposed on the other of the support body 32 or the swinging body 33. Thus, the support body 32 and the swinging body 33 can swing in a large range through spherical surface matching, and the swing can be in multiple directions (including two directions), so that the earthquake coping and blocking capability can be further improved.
It can be understood that the first seismic isolation and reduction mechanism 30 may be a single-direction friction pendulum, and the spherical curved surface adopted by the first seismic isolation and reduction mechanism can meet the seismic requirements in two directions at the same time; the bridge will produce the longitudinal displacement under normal service temperature or other effects, and great longitudinal displacement volume produces vertical lift at the support body 32 department of friction pendulum, exerts a vertical compel displacement for the bridge structure, produces additional internal force, avoids unfavorable to the structure atress.
In other embodiments, the above-mentioned one-way friction pendulum may be replaced by a spring floating mechanism, a ball-and-socket mechanism, etc. in the prior art, and all of them are within the protection scope of the present application.
With continued reference to fig. 1 and 2, the second seismic mitigation and isolation mechanism 40 includes a cylinder 41, a viscous damping medium disposed in the cylinder 41, and a piston body 42 slidably disposed in the cylinder 41, wherein the cylinder 41 is connected to one of the cover beam or the main beam 20, and the piston body 42 is connected to the other of the cover beam or the main beam 20. It is understood that the second seismic isolation and reduction mechanism is a viscous damper, and when the viscous damper moves along with the driving of seismic waves, the piston body 42 reciprocates in the cylinder 41, and the cylinder 41 is filled with a viscous damping medium (viscous fluid damping material). The reciprocating motion of the piston body 42 drives the flow of the internal viscous damping medium, the molecules generate relative motion and cannot be recovered, and internal friction force is generated among the molecules, so that the molecules are converted into heat energy; in addition, the friction force between the viscous damping medium and the surface of the solid cylinder body is converted into heat energy, so that the seismic energy is converted into molecular heat energy, a damping effect is further generated, and the purpose of dissipating the seismic wave energy is achieved.
It will be appreciated that the viscous damping medium described above may be, but is not limited to, silicone oil.
Advantages of viscous dampers include: the built-in liquid (silicone oil) has no calculable rigidity, does not influence the original design and calculation (such as period, vibration mode and the like) of the whole structure, does not influence the normal use of the structure, and does not generate unexpected side effect; the elliptic hysteresis curve ensures that the viscous damper arranged on the structure has zero stress under the maximum displacement state and zero displacement under the maximum stress state, and the performance is very favorable for reducing the structural response; in addition, the seismic sensor also has the capability of reducing structural stress in seismic reaction and reducing reaction displacement.
And a medium inlet and outlet hole communicated with the cylinder cavity is formed in the cylinder wall of the cylinder barrel 41. So as to discharge or inject new silicon oil into the cylinder 41 conveniently, and ensure the reliable and normal use of the viscous damper. It is to be understood that the number, shape, etc. of the medium access holes are not particularly limited herein to ensure reliable operation.
Lifting lugs are further arranged on the cylinder barrel 41 and/or the piston body 42. Preferably, the lifting lugs are arranged on the end portion of the cylinder 41 and the piston body 42 and are connected with lifting ropes, so that the viscous damper with heavy weight can be conveniently hoisted, the installation difficulty of the seismic isolation system is reduced, and the installation construction efficiency is improved.
Preferably, in one embodiment, the cylinder 41 is hinged to one of the cover beam or the main beam 20, and the piston 42 is hinged to the other of the cover beam or the main beam 20. Preferably, the cylinder 41 is hinged to the cover beam, and the piston 42 is hinged to the main beam 20, so that the conventional rigid connection can be changed into a flexible movable connection (i.e., a rotatable connection), thereby preventing the rigid fracture and damage at the joint caused by earthquake impact.
It should be noted that the above-mentioned hinge implementation structure may be various, such as but not limited to a pin, a hinge, etc.
With reference to fig. 1 and fig. 2, in addition, in an embodiment, the second seismic mitigation and isolation mechanism 40 further includes a first stiffening plate 43 and a second stiffening plate 44, the first stiffening plate 43 is disposed on the cover beam and is hinged to the cylinder 41, and the second stiffening plate 44 is disposed on the main beam 20 and is hinged to the piston body 42. The first stiffening plate 43 and the second stiffening plate 44 serve as intermediate engagement parts, so that reliable rigid connection between the cylinder 41 and the cover beam and between the piston body 42 and the main beam 20 can be realized, and the connection strength can be ensured.
Further, in an embodiment, the second seismic mitigation and isolation mechanism 40 further includes a third fastening assembly 45 and a fourth fastening assembly 46, the first stiffening plate 43 is locked to the cap beam by the third fastening assembly 45, and the second stiffening plate 44 is locked to the main beam 20 by the fourth fastening assembly 46. Specifically, the third fastening assembly 45 and the fourth fastening assembly 46 are a plurality of embedded bolts arranged side by side at intervals, and can be quickly and firmly assembled and connected with the first stiffening plate 43 and the second stiffening plate 44, so that the second seismic isolation reducing mechanism 40 is assembled and fixed with the cover beam and the main beam 20.
Of course, in other embodiments, the first fastening assembly 31 and the second fastening assembly 34 may be replaced by other connecting structures in the prior art, such as a snap structure, a welding structure, etc., and are also within the protection scope of the present application.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An earthquake mitigation and isolation system, comprising:
a bridge pier;
the main beams are arranged above the bridge piers at intervals;
the first seismic isolation and reduction mechanism is connected between the pier and the main beam and is arranged along the transverse direction; and
and the second seismic isolation and reduction mechanism is connected between the main beam and the piers and is arranged along the longitudinal direction, and the second seismic isolation and reduction mechanism and the first seismic isolation and reduction mechanism are arranged in an orthogonal mode.
2. The seismic mitigation and isolation system according to claim 1, further comprising a capping beam connected between the pier and the first seismic mitigation and isolation mechanism.
3. The system of claim 2, wherein the first seismic isolation and reduction mechanism comprises a first fastening component, a support body, a rotating body, a swinging body and a second fastening component, the first fastening component is arranged on the cover beam and connected with the support body, the rotating body is rotatably arranged on the support body, the second fastening component is arranged on the main beam and connected with the swinging body, and the swinging body is rotatably connected with the rotating body.
4. The seismic isolation system according to claim 3, wherein the rotating body is a spherical cap fixedly arranged on one of the support body or the oscillating body, and the other of the support body or the oscillating body is concavely provided with a spherical groove matched with the spherical surface of the spherical cap.
5. The seismic mitigation and isolation system of claim 2, wherein the second seismic mitigation and isolation mechanism comprises a cylinder, a viscous damping medium disposed in the cylinder, and a piston body slidably disposed in the cylinder, the cylinder is connected to one of the cap beam or the main beam, and the piston body is connected to the other of the cap beam or the main beam.
6. The seismic mitigation and isolation system of claim 5, wherein said cylinder is hinged to one of said cap beam or said main beam and said piston is hinged to the other of said cap beam or said main beam.
7. The seismic isolation and reduction system of claim 6, wherein the second seismic isolation and reduction mechanism further comprises a first stiffening plate and a second stiffening plate, the first stiffening plate is arranged on the cover beam and hinged to the cylinder, and the second stiffening plate is arranged on the main beam and hinged to the piston body.
8. The seismic mitigation and isolation system according to claim 7, wherein the second seismic mitigation and isolation mechanism further comprises a third fastening assembly and a fourth fastening assembly, the first stiffening plate is locked and connected to the cap beam through the third fastening assembly, and the second stiffening plate is locked and connected to the main beam through the fourth fastening assembly.
9. The seismic isolation and reduction system according to claim 5, wherein the cylinder wall of the cylinder barrel is provided with a medium inlet and outlet hole communicated with the cylinder cavity; and a lifting lug is further arranged on the cylinder barrel and/or the piston body.
10. A bridge comprising the seismic mitigation and isolation system according to any of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020520706.1U CN213061660U (en) | 2020-04-10 | 2020-04-10 | Seismic isolation and reduction system and bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020520706.1U CN213061660U (en) | 2020-04-10 | 2020-04-10 | Seismic isolation and reduction system and bridge |
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| CN213061660U true CN213061660U (en) | 2021-04-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455820A (en) * | 2020-04-10 | 2020-07-28 | 广东省交通规划设计研究院股份有限公司 | Seismic isolation and reduction system and bridge |
| CN116446266A (en) * | 2023-04-24 | 2023-07-18 | 石家庄铁道大学 | Beam falling prevention damping device and beam falling prevention damping system |
-
2020
- 2020-04-10 CN CN202020520706.1U patent/CN213061660U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455820A (en) * | 2020-04-10 | 2020-07-28 | 广东省交通规划设计研究院股份有限公司 | Seismic isolation and reduction system and bridge |
| CN116446266A (en) * | 2023-04-24 | 2023-07-18 | 石家庄铁道大学 | Beam falling prevention damping device and beam falling prevention damping system |
| CN116446266B (en) * | 2023-04-24 | 2023-11-17 | 石家庄铁道大学 | Beam falling prevention damping device and beam falling prevention damping system |
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