CN111335140A - Arch structure damping device and method for deck type concrete arch bridge - Google Patents
Arch structure damping device and method for deck type concrete arch bridge Download PDFInfo
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- CN111335140A CN111335140A CN202010287842.5A CN202010287842A CN111335140A CN 111335140 A CN111335140 A CN 111335140A CN 202010287842 A CN202010287842 A CN 202010287842A CN 111335140 A CN111335140 A CN 111335140A
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- 239000004567 concrete Substances 0.000 title claims abstract description 25
- 238000013016 damping Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000725 suspension Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a damping device and a damping method for an arch structure of a deck concrete arch bridge, wherein the damping device comprises a plurality of speed lockers and a plurality of fixed supports, the speed lockers are arranged at bridge seams and are connected with two adjacent beam pieces, the speed lockers are used for connecting all the beam pieces of the whole bridge in series to form an integral structure, the fixed supports are arranged at bridge abutments at two ends, and the damping method comprises the steps of installing the speed lockers at the bridge seams and connecting all the beam pieces of the whole bridge in series to form the integral structure through the speed lockers; and fixed supports are arranged at the bridge abutments at the two ends. The arch structure is connected in series into a whole through the speed locking device, the structural rigidity of the whole bridge structure is reasonably utilized, and therefore the problem of poor anti-seismic performance of the arch structure of the through type concrete arch bridge is solved.
Description
Technical Field
The invention relates to the technical field of a deck type concrete arch bridge, in particular to a damping device and a damping method for an arch structure of the deck type concrete arch bridge.
Background
The arch structure of the traditional deck concrete arch bridge generally adopts a reinforced concrete structure pier and then a simple beam or continuous beam structure. Because the structural rigidity of the concrete arch bridge is higher, the pier height of the arch structure is increased along with the increase of the span of the arch bridge, and the anti-seismic performance is reduced. Particularly, when the main span of the arch bridge exceeds 400m, the maximum pier height of the pier can reach nearly one hundred meters, and the seismic performance of the arch structure becomes a decisive factor for restricting the scheme of the bridge.
Disclosure of Invention
The invention aims to: aiming at the problem of lower anti-seismic performance of a deck concrete arch bridge in the prior art, a deck concrete arch bridge arch structure damping device and a damping method are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a structural damping device on deck concrete arch bridge arch, includes a plurality of speed lockers and a plurality of fixing support, speed lockers sets up in beam seam department, two adjacent beam pieces are connected to the speed lockers, the speed lockers is used for all of whole bridge the beam piece is established ties into overall structure, fixing support sets up in both ends abutment department.
The invention arranges a speed locker at a beam seam and arranges fixed supports at bridge abutments at two ends. The speed locking device does not affect the beam end expansion and contraction under the action of conventional external force (such as temperature force, braking force and the like), when strong longitudinal seismic force acts on the bridge, the speed locking device can lock the longitudinal displacement at the beam joint, the arch structures are connected in series into a whole, the pier with weak rigidity can improve the structural rigidity of the pier by utilizing the pier with large rigidity, the seismic force borne by the pier is reduced, the seismic force is redistributed among all piers in a full bridge, the weak link of the structure is eliminated, and the seismic performance of the whole structure is greatly improved.
In a preferred embodiment of the present invention, each of the segments is connected to a pier via the speed locker.
As a preferable scheme of the invention, at least two speed lockers are fixedly arranged at each pier, wherein at least one speed locker is connected with one beam piece; wherein at least one of said speed locks connects adjacent other of said beam segments.
In a preferred embodiment of the present invention, one end of the speed locker is connected to one of the beam pieces, and the other end of the speed locker is connected to another adjacent beam piece.
As a preferable scheme of the invention, the fixed support is also arranged at the pier on the arch with the highest rigidity, so that the seismic force redistribution is further facilitated.
The invention also discloses a method for damping the upper structure of the deck type concrete arch bridge arch, which comprises the following steps:
installing a speed locker at a bridge seam, and connecting all the beam pieces of the whole bridge in series to form an integral structure through the speed locker;
and fixed supports are arranged at the bridge abutments at the two ends.
The arch structure is connected in series into a whole through the speed locking device, the structural rigidity of the whole bridge structure is reasonably utilized, and therefore the problem of poor anti-seismic performance of the arch structure of the through type concrete arch bridge is solved.
As a preferable aspect of the present invention, the shock absorbing method further includes calculating the stiffness of each of the arch piers, and providing a fixing mount at the arch pier having the greatest stiffness.
In a preferred embodiment of the present invention, at least two of the speed lockers are fixedly installed at the pier, at least one of the speed lockers is connected to one of the beam pieces, and at least one of the speed lockers is connected to another adjacent beam piece.
As a preferable aspect of the present invention, both ends of the speed locker are connected to two adjacent beam pieces, respectively.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention arranges a speed locker at a beam seam and arranges fixed supports at bridge abutments at two ends. The speed locking device does not affect the beam end expansion and contraction under the action of conventional external force (such as temperature force, braking force and the like), when strong longitudinal seismic force acts on the bridge, the speed locking device can lock the longitudinal displacement at the beam joint, the arch structures are connected in series into a whole, the pier with weak rigidity can improve the structural rigidity of the pier by utilizing the pier with large rigidity, the seismic force borne by the pier is reduced, the seismic force is redistributed among all piers in a full bridge, the weak link of the structure is eliminated, and the seismic performance of the whole structure is greatly improved.
The arch structure is connected in series into a whole through the speed locking device, the structural rigidity of the whole bridge structure is reasonably utilized, and therefore the problem of poor anti-seismic performance of the arch structure of the through type concrete arch bridge is solved.
Drawings
Fig. 1 is a schematic installation diagram of the damping device for the arch structure of the deck type concrete arch bridge.
Fig. 2 is a schematic view showing the installation of the speed locker according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of the installation of the speed locker according to embodiment 2 of the present invention.
Icon: 1-speed locking device, 2-fixed support, 3-beam piece, 4-pier, 41-arch pier, 42-dividing pier, 43-common pier, 5-abutment and 6-arch ring.
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, a deck type concrete arch bridge generally includes a girder 3, an arch ring 6, piers 4 and abutments 5 at both ends, wherein the piers 4 can be classified into an arch pier 41 disposed above the arch ring 6, a general pier 43 directly erected on a foundation, and a dividing pier 42.
The embodiment provides a damping device for an arch structure of a deck type concrete arch bridge, which comprises a plurality of speed lockers 1 and a plurality of fixed supports 2. In which the fixed support 2 is mounted at the abutment 5 at both ends, and at the pier 41 on the arch where the rigidity is the greatest (obtained by simple calculation of the structural rigidity).
A plurality of speed lockers 1 are used for connecting all the beam sheets 3 of the whole bridge in series to form a whole structure, specifically, at least one speed locker 1 is arranged at each beam seam, and two adjacent beam sheets 3 are connected through the speed lockers 1. Specifically, there may be the following two implementations:
as shown in fig. 2, the first method: one end of the speed locker 1 is directly connected with one beam piece 3, and the other end of the speed locker is connected with the other adjacent beam piece 3, so that the series connection of the two adjacent beam pieces 3 is realized.
As shown in fig. 3, the second method: two speed lockers 1 are fixedly arranged at a pier 4, one speed locker 1 is connected with one beam piece 3, and the other speed locker 1 is connected with the other adjacent beam piece 3. Namely, two adjacent beam pieces 3 are connected with the same bridge pier 4, so that the two adjacent beam pieces 3 are connected in series.
Example 2
As shown in fig. 1, a method for damping a structure on an arch of a deck concrete arch bridge comprises the following steps:
installing a speed locker 1 at a bridge seam, and connecting all the beam pieces 3 of the whole bridge in series into an integral structure through the speed locker 1;
the fixed support 2 is arranged at the abutment 5 at the two ends and at the arch pier 41 with the highest rigidity.
Specifically, the speed locker 1 connects all the beam pieces 3 of the whole bridge in series to form a whole structure, and the following two ways can be realized:
as shown in fig. 2, the first method: two ends of the speed locker 1 are respectively connected with two adjacent beam pieces 3, so that the two adjacent beam pieces 3 are connected in series, and all the beam pieces 3 of the whole bridge can be connected in series into an integral structure by arranging the speed locker 1 at each beam seam.
As shown in fig. 3, the second method: two speed lockers 1 are fixedly arranged at the bridge pier 4, one speed locker 1 is connected with one beam piece 3, and the other speed locker 1 is connected with the other adjacent beam piece 3. Namely, two adjacent beam pieces 3 are connected with the same bridge pier 4, so that the two adjacent beam pieces 3 are connected in series. By providing the speed locker 1 at each beam seam, all the beam segments 3 of the whole bridge can be connected in series to form a unitary structure.
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 (9)
1. The upper bearing type concrete arch bridge arch structure damping device is characterized by comprising a plurality of speed lockers and a plurality of fixed supports, wherein the speed lockers are arranged at beam joints and connected with two adjacent beam pieces, the speed lockers are used for connecting all the beam pieces of a whole bridge in series to form an integral structure, and the fixed supports are arranged at bridge abutments at two ends.
2. A concrete arch bridge deck according to claim 1, wherein each of said plurality of said segments is connected to a pier by said speed locker.
3. A structural damper of a deck-type concrete arch bridge according to claim 2, wherein at least two of said speed lockers are fixedly installed at each of said bridge piers, wherein at least one of said speed lockers is connected to one of said beam pieces; wherein at least one of said speed locks connects adjacent other of said beam segments.
4. A concrete arch bridge deck according to claim 1, wherein the speed locker is connected at one end to one of the beam pieces and at the other end to the adjacent other of the beam pieces.
5. A structural suspension system in an arch of a deck concrete arch bridge according to any one of claims 1 to 4, wherein said fixed support is also provided at the most rigid pier.
6. A method for damping a structure on an arch of a deck concrete arch bridge is characterized by comprising the following steps:
installing a speed locker at a bridge seam, and connecting all the beam pieces of the whole bridge in series to form an integral structure through the speed locker;
and fixed supports are arranged at the bridge abutments at the two ends.
7. The method of claim 6, further comprising calculating the stiffness of each arch pier and providing a fixed mount at the arch pier with the greatest stiffness.
8. A method for damping vibration of a superstructure of a deck-type concrete arch bridge according to claim 6 or 7, wherein at least two of the velocity locks are fixedly installed at a bridge pier, at least one of the velocity locks is connected to one of the girder pieces, and at least one of the velocity locks is connected to another adjacent girder piece.
9. A method for damping a superstructure according to claim 6 or 7, wherein both ends of said speed locker are connected to two adjacent beam pieces, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287842.5A CN111335140A (en) | 2020-04-13 | 2020-04-13 | Arch structure damping device and method for deck type concrete arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287842.5A CN111335140A (en) | 2020-04-13 | 2020-04-13 | Arch structure damping device and method for deck type concrete arch bridge |
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| CN111335140A true CN111335140A (en) | 2020-06-26 |
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| CN202010287842.5A Pending CN111335140A (en) | 2020-04-13 | 2020-04-13 | Arch structure damping device and method for deck type concrete arch bridge |
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Citations (18)
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| JPH053315U (en) * | 1991-07-04 | 1993-01-19 | 川口金属工業株式会社 | Shock absorber for bridge |
| JPH10183530A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Reinforcing method for bridge |
| JP2001073319A (en) * | 1999-09-08 | 2001-03-21 | Ko Takashima | Seismic force diminution device for bridge |
| KR20010097528A (en) * | 2000-04-24 | 2001-11-08 | 김재관 | Mechanical Seismic Load Transmitting Unit For Multi-Span Continuous Bridges |
| JP2004332478A (en) * | 2003-05-12 | 2004-11-25 | Chuo Fukken Consultants Co Ltd | Earthquake resistant structure for bridge |
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| CN102926324A (en) * | 2012-11-23 | 2013-02-13 | 杨丽茹 | Multifunctional rigidity adjustable speed locking force transmission devices |
| CN203654169U (en) * | 2013-12-05 | 2014-06-18 | 深圳市市政设计研究院有限公司 | Speed lock power transmission device |
| CN204703054U (en) * | 2015-05-18 | 2015-10-14 | 南京工业大学 | Energy consumption-disaster-division type earthquake beam-falling failure multistage control system |
| CN205474793U (en) * | 2016-01-08 | 2016-08-17 | 苏交科集团股份有限公司 | Bridge anti-seismic connecting device |
| CN106702882A (en) * | 2015-11-12 | 2017-05-24 | 华南理工大学 | Hydraulic force distribution buffering device |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| US20190194883A1 (en) * | 2016-08-24 | 2019-06-27 | China Railway Eryuan Engineering Group Co.,Ltd | Method for Improving Seismic Performance of Bridge by Using Beam Body and Energy Dissipation and Seismic Mitigation Bridge Bearing |
| CN209178797U (en) * | 2018-10-15 | 2019-07-30 | 兰州工业学院 | A kind of bridge earthquake resistance attachment device |
| CN212000576U (en) * | 2020-04-13 | 2020-11-24 | 中铁二院工程集团有限责任公司 | Structure damping device on deck type concrete arch bridge arch |
-
2020
- 2020-04-13 CN CN202010287842.5A patent/CN111335140A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH053315U (en) * | 1991-07-04 | 1993-01-19 | 川口金属工業株式会社 | Shock absorber for bridge |
| JPH10183530A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Reinforcing method for bridge |
| JP2001073319A (en) * | 1999-09-08 | 2001-03-21 | Ko Takashima | Seismic force diminution device for bridge |
| KR20010097528A (en) * | 2000-04-24 | 2001-11-08 | 김재관 | Mechanical Seismic Load Transmitting Unit For Multi-Span Continuous Bridges |
| JP2004332478A (en) * | 2003-05-12 | 2004-11-25 | Chuo Fukken Consultants Co Ltd | Earthquake resistant structure for bridge |
| US20120227193A1 (en) * | 2009-11-12 | 2012-09-13 | Chubu Electric Power Co., Inc. | Method of upgrading seismic performance of existing spillway piers on dams and coupled earthquake-resistant structure |
| KR101164982B1 (en) * | 2011-05-20 | 2012-08-06 | 안창모 | Lock-up device for seismic control of bridge or building structure |
| CN102628252A (en) * | 2012-04-13 | 2012-08-08 | 成都市新筑路桥机械股份有限公司 | Speed locking device for seismic resistance of bridge |
| CN202644382U (en) * | 2012-05-21 | 2013-01-02 | 陈兴冲 | Limit and coupling beam combined device |
| CN102926324A (en) * | 2012-11-23 | 2013-02-13 | 杨丽茹 | Multifunctional rigidity adjustable speed locking force transmission devices |
| CN203654169U (en) * | 2013-12-05 | 2014-06-18 | 深圳市市政设计研究院有限公司 | Speed lock power transmission device |
| CN204703054U (en) * | 2015-05-18 | 2015-10-14 | 南京工业大学 | Energy consumption-disaster-division type earthquake beam-falling failure multistage control system |
| CN106702882A (en) * | 2015-11-12 | 2017-05-24 | 华南理工大学 | Hydraulic force distribution buffering device |
| CN205474793U (en) * | 2016-01-08 | 2016-08-17 | 苏交科集团股份有限公司 | Bridge anti-seismic connecting device |
| US20190194883A1 (en) * | 2016-08-24 | 2019-06-27 | China Railway Eryuan Engineering Group Co.,Ltd | Method for Improving Seismic Performance of Bridge by Using Beam Body and Energy Dissipation and Seismic Mitigation Bridge Bearing |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| CN209178797U (en) * | 2018-10-15 | 2019-07-30 | 兰州工业学院 | A kind of bridge earthquake resistance attachment device |
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