CN103184724A - Adjustable damping device of external prestressing cable during bridge reinforcement - Google Patents
Adjustable damping device of external prestressing cable during bridge reinforcement Download PDFInfo
- Publication number
- CN103184724A CN103184724A CN2012105551730A CN201210555173A CN103184724A CN 103184724 A CN103184724 A CN 103184724A CN 2012105551730 A CN2012105551730 A CN 2012105551730A CN 201210555173 A CN201210555173 A CN 201210555173A CN 103184724 A CN103184724 A CN 103184724A
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- supports
- cable
- bolt
- external prestressing
- external
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- 238000013016 damping Methods 0.000 title claims abstract description 9
- 230000002787 reinforcement Effects 0.000 title abstract 4
- 210000002435 tendon Anatomy 0.000 claims description 17
- 238000005728 strengthening Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract 4
- 238000010923 batch production Methods 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 244000062793 Sorghum vulgare Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000019713 millet Nutrition 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an adjustable damping device of an external prestressing cable during bridge reinforcement. The adjustable damping device of the external prestressing cable during the bridge reinforcement comprises two semicircular cable clips, supports, connecting plates, anchoring plates and bolts; the cable clips are movably connected with one end of each of the supports through the bolt; the other ends of the supports are movably connected with the anchoring plates through the connecting plates; the anchoring plates are fixedly connected with a supporting body through the bolts; the moveable supports comprise two supports with bolt holes on both sides thereof, and form a triangle with a supporting surface; two feet of the movable supports are in bolt connection with the anchoring plates through the connecting plates; the distance between the two support feet is adjustable, so that the shape of the triangle can be changed to adapt to change of the distance between the centers of the cable clips and the supporting surface; a junction end of the supports is connected with the cable clips through the bolt; and the bolts are adjusted to rotate the cable clips so as to adapt to the inclination angle of the external cable. The adjustable damping device of the external prestressing cable during the bridge reinforcement is high in adaptability; and on-site lofting manufacturing is not required and batch production can be achieved, so that the free length of the external cable can be reduced and the damping effect can be achieved.
Description
Technical field
The present invention relates to the bridge strengthening engineering, be specifically related to the adjustable vibration reduction device of external prestressing tendon in a kind of bridge strengthening.
Background technology
External prestressing strengthening is often adopted in the reinforcing of prestressed concrete and Reinforced Concrete Bridge, and this just need arrange the external prestressing cable wire near beam rib or web, generally cable wire is arranged to linear or broken line shape, common tens meters of rope length, rice up to a hundred.External tendon be because the effect of deadweight and vehicle gap bridge can be vibrated, and the length of rope is more long, vibrates more greatly, can be had a negative impact the stressed and application life of rope like this.Need every several meters rope be fixed with cord clip, to reduce drift and sagging, play vibration damping and supporting role to external tendon.Cord clip is by bracket supports, bearing surface is often apart from external tendon nearest fine strain of millet rib or web, because the fine strain of millet rib is the thickening degree often, to cause the distance between external tendon center line and the bearing surface not wait, and make stent length also inconsistent, if external tendon has inclination, cord clip also must have same inclination, very inconvenient during construction and installation, can only the field lofting blanking make, take a lot of work and time-consuming.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect that prior art exists, the adjustable vibration reduction device of external prestressing tendon in a kind of bridge strengthening is provided, convenient and swift during the construction and installation of this device, need not field lofting, saving of work and time.
The present invention is achieved through the following technical solutions:
The adjustable vibration reduction device of external prestressing tendon in a kind of bridge strengthening comprises cord clip, support, junction plate, anchor plate, the bolt of two semicircles; Described cord clip flexibly connects by an end of bolt and support, and the other end of support flexibly connects by junction plate and anchor plate; Described anchor plate is fixedlyed connected with supporting mass by bolt.
Described cord clip inwall is lined with damping rubber.
The present invention has the following advantages compared with prior art:
(1) support of the present invention is two, its two ends are movable, form triangular supports with supporting mass (as sidewall or the bottom of case beam), by changing two spacings between the anchor plate, change the shape of A-frame, thereby adjust cord clip to the distance between the bearing surface, to adapt to the situation of change of distance between bearing surface and the external prestressing tendon center line, the convenient manufacturing in batches and construction.
(2) gradient of utilizing support and cord clip connecting bolt can regulate cord clip is to adapt to external prestressing tendon broken line shape layout requirement.
Description of drawings
Fig. 1 is the side schematic view of the adjustable vibration reduction device of external prestressing tendon in the bridge strengthening of the present invention;
Fig. 2 is the schematic cross-section of Fig. 1.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further concrete detailed description the in detail.
Embodiment
As shown in Figure 1, 2.The adjustable vibration reduction device of external prestressing tendon in the bridge strengthening of the present invention comprises cord clip 1, support 2, junction plate 3, anchor plate 4, the bolt of two semicircles; Described cord clip 1 flexibly connects by an end of bolt and support 2, and the other end of support 2 flexibly connects by junction plate 3 and anchor plate 4; Described anchor plate 4 is fixedlyed connected with supporting mass by bolt, is lined with damping rubber 5 at cord clip 1 inwall.
Making of the present invention and installation process are as follows:
It is the same substantially with general cord clip that cord clip 1 is made, and is made up of two halves, adopts steel plate to make, and size is decided by the diameter of rope.Cord clip 1 only arranges a bolt with being connected of support 2, in order to cord clip 1 is rotated.The other end of cord clip 1 has two slightly little bolts to connect two halves cord clip 1, and parrel is tight.
During installation, adjust anchor plate 4(anchor plate 4 and constituted by two block plates) spacing, thereby change the triangle of support 2, with the variation of the distance H that adapts to external prestressing tendon and bearing surface (sidewall of case beam or bottom).When tilting, external prestressing tendon can adjust the connecting bolt of cord clip 1 and support 2, and to adapt to the gradient a of external prestressing tendon, at last with all bolton, in case of necessity that stud weld is dead.This external prestressing tendon adjustable vibration reduction device can be produced in batches.
Just can realize the present invention preferably as mentioned above.
Embodiments of the present invention are not restricted to the described embodiments; other are any not to deviate from change, the modification done under spiritual essence of the present invention and the principle, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1. the adjustable vibration reduction device of external prestressing tendon in the bridge strengthening is characterized in that, comprises cord clip, support, junction plate, anchor plate, the bolt of two semicircles; Described cord clip flexibly connects by an end of bolt and support, and the other end of support flexibly connects by junction plate and anchor plate; Described anchor plate is fixedlyed connected with supporting mass by bolt.
2. the adjustable vibration reduction device of external prestressing tendon in the bridge strengthening according to claim 1 is characterized in that, described cord clip inwall is lined with damping rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555173.0A CN103184724B (en) | 2012-12-19 | 2012-12-19 | Adjustable damping device of external prestressing cable during bridge reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555173.0A CN103184724B (en) | 2012-12-19 | 2012-12-19 | Adjustable damping device of external prestressing cable during bridge reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184724A true CN103184724A (en) | 2013-07-03 |
| CN103184724B CN103184724B (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210555173.0A Expired - Fee Related CN103184724B (en) | 2012-12-19 | 2012-12-19 | Adjustable damping device of external prestressing cable during bridge reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184724B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629398A (en) * | 2018-12-26 | 2019-04-16 | 石家庄铁道大学 | A kind of external prestressing strengthening device of type-64 military beam |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060053030A (en) * | 2004-11-13 | 2006-05-19 | 아주대학교산학협력단 | Net type external prestress strengthening apparatus and method for slab bridges |
| JP2007224587A (en) * | 2006-02-23 | 2007-09-06 | Nippon Colgate Kk | Reinforcing structure for external cable of prestressed concrete bridge, and reinforcing method for constructing reinforcing structure |
| CN201031357Y (en) * | 2007-02-27 | 2008-03-05 | 宁波杉工结构监测与控制工程中心有限公司 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
| CN101173505A (en) * | 2007-11-22 | 2008-05-07 | 中国第一冶金建设有限责任公司 | Construction method for chamber type bridge maintaining external pre-stress |
| CN101613991A (en) * | 2008-06-23 | 2009-12-30 | 同济大学 | Lever-type gain device for damper |
| CN201981476U (en) * | 2011-04-08 | 2011-09-21 | 湖北省交通规划设计院 | Convenient-to-install stay cable lever mass vibration absorber |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN102561184A (en) * | 2011-12-30 | 2012-07-11 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Vertical shock absorption device with external stayed cable |
| CN102776837A (en) * | 2012-08-13 | 2012-11-14 | 长安大学 | Stay cable damping system based on damping auxiliary ropes |
| CN203213002U (en) * | 2012-12-19 | 2013-09-25 | 华南理工大学 | Adjustable vibration damping apparatus of external pre-stressed cable for bridge reinforcement |
-
2012
- 2012-12-19 CN CN201210555173.0A patent/CN103184724B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060053030A (en) * | 2004-11-13 | 2006-05-19 | 아주대학교산학협력단 | Net type external prestress strengthening apparatus and method for slab bridges |
| JP2007224587A (en) * | 2006-02-23 | 2007-09-06 | Nippon Colgate Kk | Reinforcing structure for external cable of prestressed concrete bridge, and reinforcing method for constructing reinforcing structure |
| CN201031357Y (en) * | 2007-02-27 | 2008-03-05 | 宁波杉工结构监测与控制工程中心有限公司 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
| CN101173505A (en) * | 2007-11-22 | 2008-05-07 | 中国第一冶金建设有限责任公司 | Construction method for chamber type bridge maintaining external pre-stress |
| CN101613991A (en) * | 2008-06-23 | 2009-12-30 | 同济大学 | Lever-type gain device for damper |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN201981476U (en) * | 2011-04-08 | 2011-09-21 | 湖北省交通规划设计院 | Convenient-to-install stay cable lever mass vibration absorber |
| CN102561184A (en) * | 2011-12-30 | 2012-07-11 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Vertical shock absorption device with external stayed cable |
| CN102776837A (en) * | 2012-08-13 | 2012-11-14 | 长安大学 | Stay cable damping system based on damping auxiliary ropes |
| CN203213002U (en) * | 2012-12-19 | 2013-09-25 | 华南理工大学 | Adjustable vibration damping apparatus of external pre-stressed cable for bridge reinforcement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629398A (en) * | 2018-12-26 | 2019-04-16 | 石家庄铁道大学 | A kind of external prestressing strengthening device of type-64 military beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184724B (en) | 2015-04-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220913 Address after: Room 504, No. 6, Fifth Lane, Suinan New Village, Tangxia, Tianhe District, Guangzhou City, Guangdong Province, 510665 Patentee after: Guangdong Golden Shield Reinforcement Engineering Co.,Ltd. Address before: 510640 No. five, 381 mountain road, Guangzhou, Guangdong, Tianhe District Patentee before: SOUTH CHINA University OF TECHNOLOGY |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |