CN111851270A - Vertical cambered surface metal damper - Google Patents
Vertical cambered surface metal damper Download PDFInfo
- Publication number
- CN111851270A CN111851270A CN202010863054.6A CN202010863054A CN111851270A CN 111851270 A CN111851270 A CN 111851270A CN 202010863054 A CN202010863054 A CN 202010863054A CN 111851270 A CN111851270 A CN 111851270A
- Authority
- CN
- China
- Prior art keywords
- damping unit
- metal
- cambered surface
- connecting plate
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a vertical cambered surface metal damper which comprises metal damping units, wherein the metal damping units are arranged between a bridge body and a bridge abutment and are of vertical arc structures, the metal damping units comprise C-shaped parts, the number of the metal damping units is two, and the open ends of the two C-shaped parts are oppositely arranged. The metal damping unit consumes the seismic energy by utilizing the plastic deformation of the metal, so that the aim of shock absorption is fulfilled, and the metal material is little influenced by the environment, stable in performance, good in durability and low in maintenance cost; the attenuator among the prior art is mostly planar structure, and the plane size is great, and the metal damping unit in this structure is vertical arc structure, and includes C type portion, and its planar structure that compares not only can realize the tensile function in the horizontal direction, can also realize the tensile function in vertical direction, and its cross-sectional area is great, compact structure, and deformation displacement is big, and dissipation ability is strong, has improved the shock attenuation effect, avoids the structure to suffer destruction.
Description
Technical Field
The invention relates to the field of bridges, in particular to a vertical cambered surface metal damper.
Background
China is a country with frequent earthquakes, a plurality of earthquake zones are distributed, and many positions of the earthquake zones are in severe environments such as high cold and high altitude, and the like, such as Tibet, Sichuan, Yunnan and the like. Therefore, whether a railway bridge or a highway bridge, the shock resistance is one of the important factors to be considered when designing the bridge.
The seismic isolation design method is an effective method for seismic design of bridges. The method can effectively improve the fortification level of the bridge, reduce the construction cost and reduce the maintenance cost after the earthquake.
In the prior art, the shock insulation design is to make the whole bridge system become flexible, increase the vibration period of the bridge and reduce the energy input into the bridge system by ground motion. The most typical device of seismic isolation design is a friction pendulum support which adopts a pendulum principle to prolong the natural vibration period of the structure.
The damping design is to dissipate the seismic energy, so that the whole bridge system reduces the response of acceleration and displacement. The most typical device for shock absorbing design is a damper. The damper includes a steel damper, a viscous damper, a viscoelastic damper, an eddy current damper, and the like.
In a common method of high-intensity areas, a shock isolation device and a damping device are used in a matched mode, so that the structural period is prolonged, and seismic energy is dissipated. However, most dampers in the prior art are of a planar structure, the planar size is large, the defects of single direction, oil leakage, large temperature influence, high maintenance cost, poor durability and the like exist, and meanwhile, the damper has the defects of large structural size, incapability of realizing vertical tensile strength and the like, so that the damping effect is poor.
Disclosure of Invention
The invention aims to: the vertical cambered surface metal damper is provided for solving the problems that the plane size of a plane damper in the prior art is large, the direction is single, oil leakage is caused, the temperature influence is large, the maintenance cost is high, the durability is poor and the vertical tensile resistance cannot be realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
a vertical cambered surface metal damper comprises a metal damping unit;
the metal damping unit is arranged between the bridge body and the bridge abutment;
the metal damping unit is of a vertical arc-shaped structure and comprises a C-shaped part;
the number of the metal damping units is two, and the open ends of the two C-shaped parts are oppositely arranged.
The vertical arc structure is as follows: is arranged in a structure of arc shape in the vertical direction.
Through the structure, the metal damping unit is made of metal materials, and the seismic energy is consumed by utilizing the plastic deformation of the metal, so that the purpose of shock absorption is achieved, and the metal materials are little affected by the environment, stable in performance, good in durability and low in maintenance cost; the vertical cambered surface metal damper not only can realize the tensile function in the horizontal direction, but also can realize the tensile function in the vertical direction, has larger cross sectional area, compact structure, large deformation displacement and strong dissipation capability, improves the damping effect and avoids the structure from being damaged.
As a preferable aspect of the present invention, the metal damper unit further includes an annular portion integrally formed by open ends of the two C-shaped portions.
As a preferable aspect of the present invention, the metal damping unit further includes a shape in which bent portions are fixedly provided at both end portions of the C-shaped portion.
As a preferable aspect of the present invention, the metal damper unit further includes a shape in which both ends of the C-shaped portion are fixedly connected to ends of the other C-shaped portion, respectively.
As a preferable scheme of the invention, the metal damping unit comprises an inner steel damping unit and an outer steel damping unit, the inner steel damping unit is fixedly arranged on the inner side of the outer steel damping unit, the C-shaped part comprises a first C-shaped part and a second C-shaped part, the first C-shaped part is positioned on the inner steel damping unit, the second C-shaped part is positioned on the outer steel damping unit, and the first C-shaped part and the second C-shaped part are arranged in the same direction.
As a preferable scheme of the invention, the vertical cambered surface metal damper also comprises an upper connecting plate, the upper connecting plate is used for being fixedly connected with a bridge body, and the upper parts of the outer steel damping unit and the inner steel damping unit are fixedly connected with the upper connecting plate.
As a preferable scheme of the invention, the upper connecting plate is provided with a connecting piece, and the connecting piece is used for fixedly connecting the upper connecting plate with the bridge body.
As a preferred aspect of the present invention, the connecting member includes an anchor bolt.
As the preferable scheme of the invention, the vertical cambered surface metal damper further comprises a lower connecting plate, and the lower connecting plate is used for being fixedly connected with the bridge abutment.
As the preferred scheme of the invention, the vertical cambered surface metal damper also comprises two tensile plates which are respectively and fixedly connected with the two ends of the top of the lower connecting plate.
As a preferable scheme of the invention, a sliding groove is arranged between the tensile plate and the lower connecting plate.
As the preferred scheme of the invention, the vertical cambered surface metal damper also comprises a tensile connecting plate, the tensile connecting plate is fixedly connected with the lower parts of the outer steel damping unit and the inner steel damping unit, and two ends of the tensile connecting plate are positioned in the sliding grooves. Through above-mentioned structure, the both ends of tensile connecting plate are located the spout for the tensile connecting plate can freely slide in a direction of horizontal direction and realize warping, avoids sliding in other directions to let the attenuator produce the deformation and influence the performance.
As a preferable scheme of the invention, a gap is arranged between the top of the tensile connecting plate and the bottom of the tensile plate. Through the structure, the gap can release the large deformation condition of the bridge or the structure caused by expansion with heat and contraction with cold due to temperature when no earthquake occurs, and the metal damper is not allowed to deform, so that the internal stress is applied to the beam body.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the vertical cambered surface metal damper, the metal damping unit is made of metal materials, and the seismic energy is consumed by utilizing the plastic deformation of the metal, so that the purpose of damping is achieved, and the metal materials are little affected by the environment, stable in performance, good in durability and low in maintenance cost; the vertical cambered surface metal damper not only can realize the tensile function in the horizontal direction, but also can realize the tensile function in the vertical direction, has larger cross sectional area, compact structure, large deformation displacement and strong dissipation capability, improves the damping effect and avoids the structure from being damaged.
Drawings
Fig. 1 is a schematic structural view of a vertical arc-surface metal damper according to the present invention.
FIG. 2 is a schematic structural view of a vertical cambered surface metal damper with a sliding groove.
FIG. 3 is a side view of a vertical cambered surface metal damper belt runner in accordance with the present invention.
FIG. 4 is a schematic structural view of the vertical cambered surface metal damper of the present invention undergoing horizontal deformation under the action of an earthquake.
FIG. 5 is a schematic structural view of the vertical cambered surface metal damper of the present invention undergoing vertical deformation under the action of an earthquake.
FIG. 6 is a schematic structural view of a vertical cambered surface metal damper with double sliding grooves.
Fig. 7 is a schematic structural view of the metal damping unit of the present invention with a C-shaped cross section.
Fig. 8 is another schematic structural diagram of the metal damping unit according to the present invention.
Fig. 9 is another schematic structural diagram of the metal damping unit according to the present invention.
Fig. 10 is another schematic structural diagram of the metal damping unit according to the present invention.
Icon: 1-a connector; 2-upper tie plate; 3-an inner steel damping unit; 4-an outer steel damping unit; 5-a tensile plate; 6-tensile connecting plate; 7-lower tie plate; 8-upper tensile plate; 9-upper tensile connecting plate; 10-a metal damping unit; 11-C type part; 12-a bending part.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 and 7, the present embodiment provides a vertical cambered surface metal damper, which includes a metal damping unit 10, an upper tie plate 2 and a lower tie plate 7;
the upper connecting plate 2 is provided with a connecting piece 1, the connecting piece 1 is used for fixedly connecting the upper connecting plate 2 with a bridge body, and particularly, the connecting piece 1 is an anchoring bolt.
Be equipped with connecting piece 1 on lower tie plate 7, connecting piece 1 is used for making lower tie plate 7 and bridge pier fixed connection, and specifically, connecting piece 1 is the anchor bolt.
The upper connecting plate 2 is fixedly connected with the top of the metal damping unit 10, the lower connecting plate 7 is fixedly connected with the bottom of the metal damping unit 10, specifically, the upper connecting plate 2 is fixedly connected with the top of the metal damping unit 10 through a bolt, and the lower connecting plate 7 is fixedly connected with the bottom of the metal damping unit 10 through a bolt.
Further, as shown in fig. 8 to 10, the metal damper unit 10 further includes a ring shape integrally formed by opening ends of the two C-shaped portions 11, a shape in which both ends of the C-shaped portion 11 are fixedly provided with the bent portions 12, or a shape in which both ends of the C-shaped portion 11 are respectively fixedly connected to ends of the other C-shaped portion 11.
The beneficial effect that a vertical cambered surface metal damper that this embodiment provided lies in:
the metal damping unit 10 is made of metal materials, and the seismic energy is consumed by utilizing the plastic deformation of metal, so that the purpose of shock absorption is achieved, and the metal materials are little affected by the environment, stable in performance, good in durability and low in maintenance cost; the damper in the prior art is mostly of a planar structure, the planar size is large, the metal damping unit 10 in the structure is of a vertical arc-shaped structure and comprises a C-shaped part 11, the vertical cambered surface metal damper disclosed by the invention can realize a tensile function in the horizontal direction and can also realize the tensile function in the vertical direction, the cross-sectional area is large, the structure is compact, the deformation displacement is large, the dissipation capacity is strong, the damping effect is improved, and the structure is prevented from being damaged.
Example 2
As shown in fig. 2 to 5, the present embodiment provides a vertical cambered surface metal damper, which includes the metal damping unit 10, the upper tie plate 2, and the lower tie plate 7 in embodiment 1, and further includes a tensile plate 5 and a tensile connecting plate 6.
The quantity of tensile board 5 is two, two tensile boards 5 respectively with the top both ends fixed connection of lower tie plate 7, have the spout between tensile board 5 and the lower tie plate 7, the both ends of tensile connecting plate 6 are located the spout, have the clearance between the top of tensile connecting plate 6 and the bottom of tensile board 5.
The beneficial effect that a vertical cambered surface metal damper that this embodiment provided lies in:
the two ends of the tensile connecting plate 6 are positioned in the sliding grooves, so that the tensile connecting plate 6 can freely slide in one direction of the horizontal direction to realize deformation, and the damper is prevented from deforming to influence the performance due to sliding in other directions;
the gap between the top of the tensile connecting plate 6 and the bottom of the tensile plate 5 can release the large deformation condition of the bridge or the structure caused by thermal expansion and cold contraction due to temperature when no earthquake occurs, and the metal damper is not allowed to deform, so that the internal stress is applied to the beam body.
Example 3
As shown in fig. 6, the present embodiment provides a vertical cambered surface metal damper, which includes the metal damping unit 10, the upper connecting plate 2, the lower connecting plate 7, the tension-resisting plate 5, and the tension-resisting connecting plate 6 in embodiment 2, and further includes an upper tension-resisting plate 8 and an upper tension-resisting connecting plate 9.
Go up the quantity of tensile board 8 and be two, go up tensile board 8 and last tie plate 2's bottom both ends fixed connection for two, go up and have the spout between tensile board 8 and the last tie plate 2, go up the both ends of tensile connecting plate 9 and be located the spout, have the clearance between the top of going up tensile connecting plate 9 bottom and tensile board 8.
The upper tensile connecting plate 9 is fixedly connected with the upper parts of the inner steel damping unit 3 and the outer steel damping unit 4, and specifically, the upper tensile connecting plate 9 is fixedly connected with the upper parts of the inner steel damping unit 3 and the outer steel damping unit 4 in a bolt or welding mode.
The beneficial effect that a vertical cambered surface metal damper that this embodiment provided lies in:
the upper part and the lower part of the damping unit are respectively provided with a sliding chute, so that the damper can freely slide in one direction of the horizontal direction to realize deformation, and the phenomenon that the damper deforms to influence the performance due to sliding in other directions is avoided;
gaps are formed in the upper portion and the lower portion of the damping unit, so that the large deformation condition that the bridge or the structure expands with heat and contracts with cold due to temperature when no earthquake occurs can be released, the metal damper is not allowed to deform, and internal stress is applied to the beam body.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (13)
1. A vertical cambered surface metal damper is characterized by comprising a metal damping unit (10);
the metal damping unit is arranged between the bridge body and the bridge abutment;
the metal damping unit is of a vertical arc-shaped structure, and the metal damping unit (10) comprises a C-shaped part (11);
the number of the metal damping units (10) is two, and the open ends of the two C-shaped parts (11) are arranged oppositely.
2. A vertical cambered surface metal damper according to claim 1, characterized in that said metal damper unit (10) further comprises an annular portion integrally formed by the open ends of two of said C-shaped portions (11).
3. The vertical cambered surface metal damper according to claim 1, wherein the metal damping unit (10) further comprises a shape that two ends of the C-shaped part (11) are fixedly provided with bent parts (12).
4. The vertical cambered surface metal damper according to claim 1, wherein the metal damping unit (10) further comprises a shape that two ends of the C-shaped part (11) are respectively fixedly connected with an end of another C-shaped part (11).
5. The vertical cambered surface metal damper according to claim 1, wherein the metal damping unit (10) comprises an inner steel damping unit (3) and an outer steel damping unit (4), the inner steel damping unit (3) is fixedly arranged on the inner side of the outer steel damping unit (4), the C-shaped part (11) comprises a first C-shaped part and a second C-shaped part, the first C-shaped part is positioned on the inner steel damping unit (3), the second C-shaped part is positioned on the outer steel damping unit (4), and the first C-shaped part and the second C-shaped part are arranged in the same direction.
6. The vertical cambered surface metal damper according to claim 5, further comprising an upper connecting plate (2), wherein the upper connecting plate (2) is fixedly connected with the bridge girder, and the upper parts of the outer steel damping unit (4) and the inner steel damping unit (3) are fixedly connected with the upper connecting plate (2).
7. The vertical cambered surface metal damper according to claim 6, characterized in that a connecting piece (1) is arranged on the upper connecting plate (2), and the connecting piece (1) is used for fixedly connecting the upper connecting plate (2) with the bridge body.
8. Vertical cambered surface metal damper according to claim 7, characterized in that said connection member (1) comprises an anchor bolt.
9. The vertical cambered surface metal damper of claim 8, further comprising a lower connecting plate (7), wherein the lower connecting plate (7) is used for being fixedly connected with the bridge abutment.
10. The vertical cambered surface metal damper of claim 9, further comprising two tension plates (5), wherein the two tension plates (5) are respectively and fixedly connected with two ends of the top of the lower connecting plate (7).
11. Vertical cambered metal damper according to claim 10, characterized in that there is a slide groove between said tension plate (5) and said lower tie plate (7).
12. The vertical cambered surface metal damper according to claim 11, further comprising a tensile connecting plate (6), wherein the tensile connecting plate (6) is fixedly connected with the lower portions of the outer steel damping unit (4) and the inner steel damping unit (3), and two ends of the tensile connecting plate (6) are located in the sliding grooves.
13. Vertical arc metal damper according to claim 12, characterized in that there is a gap between the top of the tensile tie plate (6) and the bottom of the tensile tie plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863054.6A CN111851270A (en) | 2020-08-25 | 2020-08-25 | Vertical cambered surface metal damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863054.6A CN111851270A (en) | 2020-08-25 | 2020-08-25 | Vertical cambered surface metal damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111851270A true CN111851270A (en) | 2020-10-30 |
Family
ID=72968142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010863054.6A Pending CN111851270A (en) | 2020-08-25 | 2020-08-25 | Vertical cambered surface metal damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111851270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809344A (en) * | 2022-04-07 | 2022-07-29 | 中建二局第一建筑工程有限公司 | Multi-section simultaneous yield metal damping device |
-
2020
- 2020-08-25 CN CN202010863054.6A patent/CN111851270A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809344A (en) * | 2022-04-07 | 2022-07-29 | 中建二局第一建筑工程有限公司 | Multi-section simultaneous yield metal damping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Constantinou et al. | Seismic response of structures with supplemental damping | |
| US20040074162A1 (en) | Structure of an anti-shock device | |
| CN107794839B (en) | Limiting device of shock-absorbing and isolating support | |
| KR20060084173A (en) | Earthquake isolation bearing for bridges using shape memory alloy | |
| CN111827098A (en) | Trigger type limited negative stiffness high-strength spring damping support | |
| CN114775413B (en) | Existing pier anti-seismic performance improving structure and method based on inertial capacity shock insulation and swing | |
| CN111851270A (en) | Vertical cambered surface metal damper | |
| KR100674594B1 (en) | Device and method for mitigating the cable vibration in cable-stayed bridge | |
| CN107841942B (en) | Hyperboloid friction pendulum support | |
| KR100965236B1 (en) | Truss bridge for absorbing vibration | |
| CN212404796U (en) | Vertical cambered surface metal damper | |
| KR102138941B1 (en) | Isolation device utilizing wedges and elastic support wedge device | |
| KR19990066356A (en) | Rubber feet for seismic isolation of structures | |
| CN214573294U (en) | Three-dimensional anisotropic metal damping seismic mitigation and isolation support | |
| CN115948976B (en) | Longitudinal combined toughness constraint system and method for large-span suspension bridge | |
| KR20090033671A (en) | Bridge for absorbing vibration | |
| WO2010000897A1 (en) | Method for the seismic isolation of a supported object | |
| Gimenez et al. | Md. Seismic isolation of bridges: devices, common practices in Japan, and examples of application | |
| CN212338022U (en) | Three-way special-shaped metal damper | |
| CN209276981U (en) | A kind of compressed spring shock mount | |
| CN112095826A (en) | High-performance energy dissipation support for structure and assembling method | |
| CN105507443A (en) | Civil engineering shock absorption device and shock absorption method | |
| JP3503712B2 (en) | Lead encapsulated laminated rubber | |
| CN219032908U (en) | Multifunctional damping energy-dissipation type beam connecting device | |
| CN219032909U (en) | Damping energy-dissipation type beam falling prevention device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220427 Address after: No.356, Xiwang West Road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Applicant after: CHENGDU DATONG ROAD & BRIDGE COMPONENTS CO.,LTD. Applicant after: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Applicant after: Sichuan tietuo Technology Co.,Ltd. Address before: No.356, Xiwang West Road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Applicant before: CHENGDU DATONG ROAD & BRIDGE COMPONENTS CO.,LTD. Applicant before: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Applicant before: SICHUAN TIECHUANG TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right |