CN104278625B - A kind of Simple Supported Railway Bridges beam type damping device - Google Patents
A kind of Simple Supported Railway Bridges beam type damping device Download PDFInfo
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- CN104278625B CN104278625B CN201410534342.1A CN201410534342A CN104278625B CN 104278625 B CN104278625 B CN 104278625B CN 201410534342 A CN201410534342 A CN 201410534342A CN 104278625 B CN104278625 B CN 104278625B
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- branch sleeve
- oscillating bearing
- damping device
- damping
- bridge pier
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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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Mechanical Engineering (AREA)
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- Civil Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to Bridge Seismic technical field, it is proposed to a kind of Simple Supported Railway Bridges beam type damping device.A kind of Simple Supported Railway Bridges beam type damping device proposed includes damping tenon (13) and connects firmly the branch sleeve (2) in fine strain of millet body (1) bottom；The upper end of damping tenon (13) is connected to oscillating bearing (10), and the periphery of oscillating bearing (10) outer ring is the face of cylinder that the internal face with branch sleeve (2) coordinates；Oscillating bearing (10) is positioned at described branch sleeve (2), and the internal face of the periphery of oscillating bearing (10) and branch sleeve (2) is slidably matched；The beam body fastener inserts (8) in order to be connected it is embedded with branch sleeve in fine strain of millet body (1)；It is embedded with in order to the bridge pier fastener inserts (12) with damping feather joint in described bridge pier (6).Present invention reduces the contact stress of power transmission sleeve and oscillating bearing；Improve the service life of damping device.
Description
Technical field
The invention belongs to Bridge Seismic technical field, be specifically related to a kind of Simple Supported Railway Bridges beam type damping device.
Background technology
Simple Supported Railway Bridges generally adopts one end fixed pattern bearing, and other end longitudinally-moving type bearing couples beam body and bridge pier；In order to when reducing earthquake, beam body is transferred to the load of bridge pier, it is prevented that bridge pier destroys, generally couple position in beam body with bridge pier and damping device is set.
Proposing " a kind of Simple Supported Railway Bridges beam type damping tenon structure " as it is shown in figure 1, the patent No. is ZL200920258541.9, this patent is a kind of damping device for Simple Supported Railway Bridges；Damping device is made up of branch sleeve 2, ball-shaped power transmission bulb 3, damping tenon top active section 4, transition seal ring 5, damping tenon lower anchor section 7；Branch sleeve 2 is formed with steel plate consolidation by cylindrical tube, and branch sleeve 2 is fixedly arranged at bottom beam body；Ball-shaped power transmission bulb 2 is fixedly arranged at active section 4 upper end, damping tenon bar top, with branch sleeve cylinder shape inner wall for being slidably matched, can move along branch sleeve inwall axis direction；Damping tenon top active section 4 is variable cross-section rotary structure；Damping tenon lower anchor section 7 connects firmly in bridge pier 6；There is in bridge pier 6 upper surface the conical tank of collar damping tenon, there is transition seal ring 5 in conical tank.
Bridge normal operation state: vertical load that beam body transmits and the corner of beam body still by with damping device with the use of multidirectional active type bearing realize, beam body is realized by damping tenon owing to beam body that variations in temperature produces deforms.Beam body has the relative level that the variations in temperature of about 3mm produces to move relative to bridge pier.Beam body and the branch sleeve synchronizing moving with beam body consolidation；Branch sleeve drives ball-shaped power transmission bulb to move horizontally, and relatively rotates and along the Relative sliding of branch sleeve inwall axis between branch sleeve and ball-shaped power transmission bulb simultaneously；Active section lower end, damping tenon top consolidates, and upper end produces horizontal distortion, and damping tenon top active section is in elastic deformation.
Bridge is in earthquake state: damping tenon top active section is in elastoplasticity duty, by the plastic deformation absorption portion seismic energy of damping tenon top active section；There is greater level deformation in active section upper end, damping tenon top, the horizontal rigidity of damping tenon device reduces, and reduces beam body and is transferred to the horizontal load of bridge pier.
Damping tenon is changed after the earthquake: releasing branch sleeve couples with beam body, cuts the concrete around pier top damping tenon lower anchor section, takes out damping tenon device；The fresh processed damping tenon device of weight is put into pier top indentation, there, in damping tenon lower anchor section circumfusion concrete, consolidation branch sleeve and beam body.
Owing to contacting for line face between ball-shaped power transmission bulb 3 with branch sleeve 2 inwall, above-mentioned damping tenon device is when the horizontal load transmitted by beam body, and between ball-shaped power transmission bulb 3 and branch sleeve 2, contact site is due to stress concentration, and contact stress is bigger；The Relative sliding along power transmission sleeve axis additionally occurred between ball-shaped power transmission bulb and branch sleeve will occur every day, and owing to contact stress is relatively big, the unfavorable phenomenon such as abrasion, corrosion easily occurs at two component contact positions；Additionally big in the difficulty of construction changing damping tenon after the earthquake, long construction period.
Summary of the invention
For solving above-mentioned technical problem, the purpose of the present invention is to propose to a kind of Simple Supported Railway Bridges beam type damping device.
The present invention adopts the following technical scheme that for completing above-mentioned purpose
A kind of Simple Supported Railway Bridges beam type damping device, described damping device is arranged between fine strain of millet body and bridge pier；Described damping device includes damping tenon and branch sleeve；Described branch sleeve connects firmly the bottom at fine strain of millet body；The upper end of described damping tenon is connected to oscillating bearing, and described oscillating bearing is made up of the inner ring with spherical outside surface and the outer ring with Internal Spherical Surface；The periphery of described oscillating bearing outer ring is the face of cylinder that the internal face with branch sleeve coordinates；Described oscillating bearing is positioned at described branch sleeve, and the internal face of the periphery of oscillating bearing and described branch sleeve is slidably matched, make bridge when normal operation state and earthquake state, fine strain of millet body drives branch sleeve to move horizontally, branch sleeve drives oscillating bearing to move horizontally, and makes damping tenon generation elastic deformation；Damping tenon after elastic deformation makes oscillating bearing, branch sleeve along cylinder lumen axis Relative sliding, and oscillating bearing and branch sleeve can be made to relatively rotate, and radially transmits load along cylinder lumen；The beam body fastener inserts in order to be connected it is embedded with branch sleeve in described fine strain of millet body；It is embedded with in described bridge pier in order to the bridge pier fastener inserts with damping feather joint；Described damping device is connected with fine strain of millet body by branch sleeve, beam body fastener inserts；Described damping device is connected with bridge pier by damping tenon, bridge pier fastener inserts.
Described damping tenon has the variable cross-section revolving body in flaring footpath from top to bottom；The bottom of described damping tenon has the ring flange in order to be connected with bridge pier.
Described bridge pier fastener inserts is made up of with the many cylindrical tube shape rod members being welded on bottom steel plate steel plate.
Described beam body fastener inserts is made up of steel plate and the many cylindrical tube shape rod members being welded on steel plate top.
Described branch sleeve includes cylindrical barrel and tabular steel plate；Described cylindrical barrel is positioned at the bottom of tabular steel plate；Described tabular steel plate has multiple installing hole in order to install connecting bolt.
A kind of Simple Supported Railway Bridges beam type damping device that the present invention proposes, the upper end of damping tenon is coordinated with branch sleeve by oscillating bearing, the periphery of oscillating bearing and the internal face of branch sleeve are slidably matched, make can to occur between oscillating bearing and branch sleeve along the Relative sliding of branch sleeve axis and relatively rotate, reducing the contact stress of power transmission sleeve and oscillating bearing；Improve the service life of damping device, when the present invention changes, the connecting bolt coupled with beam body by branch sleeve releases, and falls branch sleeve；The connecting bolt coupled with pier top pre-embedded device by flange releases, and damping device active section and branch sleeve is taken out；Branch sleeve is inserted in the damping device active section of replacing；By in place to damping tenon device and branch sleeve；Connecting bolt is adopted to couple branch sleeve and beam body pre-embedded device；Adopting connecting bolt to couple flange and bridge pier device, namely replaceable operation, has operating expenses few, the feature of short construction period, and construction period was less than 1 day.
Accompanying drawing explanation
Fig. 1 is the structural representation of Simple Supported Railway Bridges beam type damping device in prior art.
Fig. 2 is the structural representation of invention.
In figure: 1, beam body, 2, branch sleeve, 3, ball-shaped power transmission bulb, 4, damping tenon top active section, 5, transition seal ring, 6, bridge pier, 7, damping tenon lower anchor section, 8, fine strain of millet body fastener inserts, 9, beam body connecting bolt, 10, oscillating bearing, 11, flange bolt, 12, bridge pier fastener inserts, 13, damping tenon.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the present invention is illustrated, but, the invention is not limited in the present embodiment.
As in figure 2 it is shown, a kind of Simple Supported Railway Bridges beam type damping device, described damping device is arranged between fine strain of millet body 1 and bridge pier 6；Described damping device includes damping tenon 13 and branch sleeve 2；Described branch sleeve 2 is associated in the bottom of fine strain of millet body 1；Described branch sleeve 2 includes cylindrical barrel and tabular steel plate；Described cylindrical barrel is positioned at the bottom of tabular steel plate；Described tabular steel plate has multiple installing hole in order to install connecting bolt；Described damping tenon 13 has the variable cross-section revolving body in flaring footpath from top to bottom；The top of described damping tenon has to be nested with the cylinder of oscillating bearing；The bottom of described damping tenon has the ring flange in order to be connected with bridge pier；Described oscillating bearing 10 is nested with on the cylinder being fixed on damping tenon 13 upper end；Described oscillating bearing 10 is made up of the inner ring with spherical outside surface and the outer ring with Internal Spherical Surface；The periphery of described oscillating bearing 10 outer ring is the face of cylinder that the internal face with branch sleeve 2 coordinates；Described oscillating bearing 10 is positioned at described branch sleeve 2, and the internal face of the periphery of oscillating bearing 10 and described branch sleeve 2 is slidably matched, make oscillating bearing, branch sleeve along cylinder lumen axis Relative sliding and relatively rotate, radially can transmit load along cylinder lumen；The beam body fastener inserts 8 in order to be connected it is embedded with branch sleeve in described fine strain of millet body 1；Described beam body fastener inserts 8 is made up of with the many cylindrical tube shape rod members being welded on bottom steel plate steel plate；It is embedded with in order to the bridge pier fastener inserts 12 with damping feather joint in described bridge pier 6；Described bridge pier fastener inserts 12 is made up of with the many cylindrical tube shape rod members being welded on bottom steel plate steel plate；For high-strength bolt, by pretightning force, branch sleeve 2 and beam body fastener inserts 8 are linked together；Beam body connecting bolt 9 is connected through the installing hole on branch sleeve tabular steel plate with the beam body fastener inserts 8 in fine strain of millet body 1, branch sleeve 2 and fine strain of millet body 1 is fixedly connected；Flange bolt 11 is connected through the installing hole on damping tenon upper flange plate with the bridge pier fastener inserts 12 in bridge pier 6, damping tenon 2 and bridge pier 1 is fixedly connected.
Bridge normal operation state: vertical load that beam body transmits and the corner of beam body still by with damping device with the use of multidirectional active type bearing realize, beam body is realized by the present invention owing to beam body that variations in temperature produces deforms；Beam body has the relative level that the variations in temperature of about 3mm produces to move relative to bridge pier；Beam body 1 and branch sleeve 2 synchronizing moving with beam body consolidation；Branch sleeve 2 drives oscillating bearing 7 to move horizontally；There is elastic deformation in damping tenon 4；After there is elastic deformation in damping tenon 4, center line of the bar is become curve from straight line, rod end reduces to the distance of bridge pier 6, make the Relative sliding occurred between branch sleeve 2 and oscillating bearing 7 along branch sleeve inwall axis, simultaneously because the end of damping tenon 4 rotates due to horizontal distortion, oscillating bearing 7 and branch sleeve 2 is made to relatively rotate；Branch sleeve 2 inwall and oscillating bearing 7 outer wall are plane-plane contact；The load of branch sleeve 2 transmission is transferred to the upper end of damping tenon 4 by oscillating bearing 7；Damping tenon 4 upper end produces horizontal distortion, and the variable cross-section section of damping tenon 4 is in elastic deformation.
Bridge is in earthquake state: damping tenon 4 variable cross-section section is in elastic-plastic behavior, by the plastic deformation absorption portion seismic energy of variable cross-section section；There is greater level deformation in damping tenon 4 upper end, the horizontal rigidity of damping device reduces, and reduces beam body and is transferred to the horizontal load of bridge pier.
Damping device is changed: beam body connecting bolt 8 and flange bolt 11 are screwed out, branch sleeve 2 and damping tenon 4 are taken out, fresh processed for weight damping tenon 4 flange bolt 11 is connected with bridge pier fastener inserts 12, branch sleeve 2 beam body connecting bolt 9 is connected with beam body fastener inserts 8；Namely above operation completes after completing to change operation, and operating expenses is few, short construction period, can complete less than 1 day to change operation.
Claims (5)
1. a Simple Supported Railway Bridges beam type damping device, described damping device is arranged between fine strain of millet body (1) and bridge pier (6)；Described damping device includes damping tenon (13) and branch sleeve (2)；Described branch sleeve (2) connects firmly the bottom in fine strain of millet body (1)；It is characterized in that: the upper end of described damping tenon (13) is connected to oscillating bearing (10), described oscillating bearing (10) is made up of the inner ring with spherical outside surface and the outer ring with Internal Spherical Surface；The periphery of described oscillating bearing (10) outer ring is the face of cylinder that the internal face with branch sleeve (2) coordinates；Described oscillating bearing (10) is positioned at described branch sleeve (2), and the internal face of the periphery of oscillating bearing (10) and described branch sleeve (2) is slidably matched, make bridge when normal operation state and earthquake state, fine strain of millet body drives branch sleeve to move horizontally, branch sleeve drives oscillating bearing to move horizontally, and makes damping tenon generation elastic deformation；Damping tenon after elastic deformation makes oscillating bearing, branch sleeve along cylinder lumen axis Relative sliding, and oscillating bearing and branch sleeve can be made to relatively rotate, and radially transmits load along cylinder lumen；The beam body fastener inserts (8) in order to be connected it is embedded with branch sleeve in described fine strain of millet body (1)；It is embedded with in order to the bridge pier fastener inserts (12) with damping feather joint in described bridge pier (6)；Described damping device is connected with fine strain of millet body (1) by branch sleeve (2), beam body fastener inserts (8)；Described damping device is connected with bridge pier (6) by damping tenon (13), bridge pier fastener inserts (12).
2. a kind of Simple Supported Railway Bridges beam type damping device according to claim 1, it is characterised in that: described damping tenon (13) has the variable cross-section revolving body in flaring footpath from top to bottom；The bottom of described damping tenon has the ring flange in order to be connected with bridge pier.
3. a kind of Simple Supported Railway Bridges beam type damping device according to claim 1, it is characterised in that: described bridge pier fastener inserts (12) is made up of with the many cylindrical tube shape rod members being welded on bottom steel plate steel plate.
4. a kind of Simple Supported Railway Bridges beam type damping device according to claim 1, it is characterised in that: described beam body fastener inserts (8) is made up of steel plate and the many cylindrical tube shape rod members being welded on steel plate top.
5. a kind of Simple Supported Railway Bridges beam type damping device according to claim 1, it is characterised in that: described branch sleeve (2) includes cylindrical barrel and tabular steel plate；Described cylindrical barrel is positioned at the bottom of tabular steel plate；Described tabular steel plate has multiple installing hole in order to install connecting bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410534342.1A CN104278625B (en) | 2014-10-13 | 2014-10-13 | A kind of Simple Supported Railway Bridges beam type damping device |
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| CN201410534342.1A CN104278625B (en) | 2014-10-13 | 2014-10-13 | A kind of Simple Supported Railway Bridges beam type damping device |
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| CN104278625A CN104278625A (en) | 2015-01-14 |
| CN104278625B true CN104278625B (en) | 2016-06-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652252A (en) * | 2015-02-12 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Bridge damping blocking tenon device |
| CN105236315B (en) * | 2015-10-30 | 2019-06-25 | 巨力索具股份有限公司 | A kind of suspender with adaptive beat rotation function |
| CN107974923B (en) * | 2017-12-13 | 2023-11-17 | 中铁二院昆明勘察设计研究院有限责任公司 | Movable three-way damping device for near-field earthquake |
| CN111173192B (en) * | 2020-01-06 | 2021-06-01 | 山东建筑大学 | Large-span variable cross-section beam |
| CN113152256B (en) * | 2021-05-06 | 2022-11-01 | 中南大学 | Assembled pre-compaction ball pivot type damping device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08284114A (en) * | 1995-04-18 | 1996-10-29 | Kajima Corp | Response control device for bridge |
| JP2002309801A (en) * | 2001-04-13 | 2002-10-23 | Nippon Steel Corp | Energy absorption device |
| JP2003184031A (en) * | 2001-09-28 | 2003-07-03 | Kiyoshi Karasuno | Lead damper |
| CN201627139U (en) * | 2009-11-27 | 2010-11-10 | 洛阳双瑞特种装备有限公司 | Cantilever-beam type shock-absorbing tenon structure for railway simply supported beam bridge |
| CN201778280U (en) * | 2010-09-20 | 2011-03-30 | 成都市新筑路桥机械股份有限公司 | Fixing shock absorption buckling tenon for bridges |
-
2014
- 2014-10-13 CN CN201410534342.1A patent/CN104278625B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08284114A (en) * | 1995-04-18 | 1996-10-29 | Kajima Corp | Response control device for bridge |
| JP2002309801A (en) * | 2001-04-13 | 2002-10-23 | Nippon Steel Corp | Energy absorption device |
| JP2003184031A (en) * | 2001-09-28 | 2003-07-03 | Kiyoshi Karasuno | Lead damper |
| CN201627139U (en) * | 2009-11-27 | 2010-11-10 | 洛阳双瑞特种装备有限公司 | Cantilever-beam type shock-absorbing tenon structure for railway simply supported beam bridge |
| CN201778280U (en) * | 2010-09-20 | 2011-03-30 | 成都市新筑路桥机械股份有限公司 | Fixing shock absorption buckling tenon for bridges |
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| CN104278625A (en) | 2015-01-14 |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |