CN101545244A - Stay cable internal damper with adaptive stay cable eccentricity and self-locking function - Google Patents
Stay cable internal damper with adaptive stay cable eccentricity and self-locking function Download PDFInfo
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- CN101545244A CN101545244A CN200910030638A CN200910030638A CN101545244A CN 101545244 A CN101545244 A CN 101545244A CN 200910030638 A CN200910030638 A CN 200910030638A CN 200910030638 A CN200910030638 A CN 200910030638A CN 101545244 A CN101545244 A CN 101545244A
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Abstract
The invention relates to a stay cable internal damper with adaptive stay cable eccentricity and self-locking function, which is arranged between a stay cable (1) and a pre-buried steel pipe (4) arranged in a box beam or a tower. The stay cable internal damper comprises a hough rubber block (3), pairs of wedge blocks (2), a plurality of pull rods (5), nuts (8), springs (7) and pressure plates (6); the hough rubber block (3) is fixed outside the stay cable (1) in the position of a stay cable anchorage device; the outer edges of the upper end and the lower end of the hough rubber block (3) are in cone shapes; the pairs of wedge blocks (2) are radially arranged between the outer edges of the upper end and the lower end of the hough rubber block (3) and the pre-buried steel pipe (4) at intervals; one upper wedge block and one lower wedge block which are paired are arranged to be opposite to each other; each of the pull rods (5) is inserted between one upper wedge block and one lower wedge block which are paired, and the upper end of the pull rod (5) extends outside the upper wedge block in the pair of wedge blocks; the upper ends of the pull rods (5) are provided with screw threads; the pressure plates (6), the springs (7) and gaskets (9) are sleeved on the pull rods (5) from top to bottom; and the nuts (8) are screwed to the outer threads at the upper ends of the pull rods (5). The invention can reduce the vibration of a cable-stayed bridge system.
Description
(1) technical field
The present invention relates to a kind of stay cable internal damper.Belong to bridge system technical field.
(2) background technology
Compare with other various bridge systems, the rope supporting system is owing to its large span performance receives much concern.Cable stayed bridge is a kind of self-anchoring system, because of it is built efficiently, cost is lower, extensively promoted, and it strides footpath increase day by day.Suspension cable is the main member of cable stayed bridge, and along with the increase of the span of cable stayed bridge must cause the increase of suspension cable length, because the characteristic of big flexibility, little quality and the little damping of rope, suspension cable very easily vibrates.Yet the vibration of cable stayed bridge funicular system will have following harm: produce the anticorrosion sheath that flexural fatigue is destroyed, damaged suspension cable in anchored end, shorten its life-span, cause pedestrian's uneasiness, therefore need take effective measure to reduce its vibration at the vibration of suspension cable cable system.When the error owing to the suspension cable construction, when suspension cable and pre-buried anchoring position decentraction, internal damper needs self-control to adapt to the off-centre of suspension cable.Simultaneously, in the operation process of cable stayed bridge, inevitably exist the vibration of suspension cable, the variation of stay cable force that the load secondary distribution causes, above factor also can cause the gap between suspension cable and the pre-buried conduit to change, thereby make damper can not bring into play due effect, even come off from the tower end and to drop on the bridge floor, cause security incident.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, what a kind of vibration that can reduce the cable stayed bridge funicular system was provided has adaptive stay cable eccentricity and possesses the stay cable internal damper of auto-lock function.
The object of the present invention is achieved like this: a kind of stay cable internal damper that has adaptive stay cable eccentricity and possess auto-lock function, it is characterized in that described damper is arranged between the interior embedded steel tube of suspension cable and case beam or tower, comprise Hough formula block rubber, carve piece, pull bar and nut, spring and pressing plate, described Hough formula block rubber is fixedly mounted on outside the suspension cable at suspension cable ground tackle position, the outer rim of two ends up and down of described Hough formula block rubber is arranged to cone-shaped, described carve piece have how right, manyly be embedded between the outer rim of two ends up and down and embedded steel tube of described Hough formula block rubber carving the piece spaced radial, wherein, with a pair of carve piece up and down two carve piece and be provided with in opposite directions, described pull bar also has many, many pull bars plug-in mounting respectively are connected each to carving two carving between the piece up and down of piece, described pull bar upper end is stretched out every couple of top of carving piece and is carved outside the piece, the pull bar upper end is shaped on external screw thread, described pressing plate, spring and pad are sleeved on the described top pull bar of carving piece top from bottom to top, and described nut revolves to be put at pull bar upper external screw thread place.
The present invention installs Hough formula block rubber between the suspension cable at anchoring position and embedded steel tube, utilize the crimp of block rubber to come consumed energy with vibration that reduces suspension cable and the fatigue of alleviating suspension cable anchoring position.After suspension cable install to finish,, utilize the position that screw thread and nut adjustment are carved piece on the pull bar according to the eccentric situation between suspension cable and the embedded steel tube, holddown spring, make length of spring compressed, store certain elastic potential energy, internal damper and embedded steel tube fit tightly.After damper is installed end, in the operation of stayed-cable bridge, if because Inclined Cable Vibration or Suo Li change when causing the gap of damper and suspension cable, regulating spring discharges its elastic potential energy, promote pressing plate and make and carve piece and carve tightly, thus the self-locking of realization internal damper.
The invention has the beneficial effects as follows: can reduce the vibration of cable stayed bridge funicular system.
(4) description of drawings
Fig. 1 has adaptive stay cable eccentricity for the present invention and possesses the Facad structure schematic diagram of the stay cable internal damper of auto-lock function.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the partial enlarged drawing on Fig. 1 top.
Among the figure: suspension cable 1, carve embedded steel tube 4, pull bar 5, pressing plate 6, spring 7, nut 8, pad 9 in piece 2, Hough formula block rubber 3, case beam or the tower.
(5) specific embodiment
Referring to Fig. 1～3, the present invention has adaptive stay cable eccentricity and possesses the stay cable internal damper of auto-lock function, be arranged between the embedded steel tube 4 in suspension cable 1 and case beam or the tower, mainly by Hough formula block rubber 3, carve piece 2, pull bar 5 and nut 8 and have the spring 7 of auto-lock function and pressing plate 6 etc. is formed.Described Hough formula block rubber 3 is fixedly mounted on outside the suspension cable 1 at suspension cable ground tackle position, the outer rim of two ends up and down of described Hough formula block rubber 3 is arranged to cone-shaped, described carve piece 2 have how right, manyly be embedded between the outer rim of two ends up and down and embedded steel tube 4 of described Hough formula block rubber 3 carving the piece spaced radial, wherein, with a pair of carve piece up and down two carve piece 2 and be provided with in opposite directions, described pull bar 5 also has many, many pull bars 5 plug-in mounting respectively are connected each to carving two carving between the piece 2 up and down of piece, described pull bar 5 upper ends are stretched out every couple of top of carving piece and are carved outside the piece 2, pull bar 5 upper ends are shaped on external screw thread, described pressing plate 6, spring 7 and pad 9 are sleeved on described every pair of top pull bar 5 of carving piece 2 tops of carving piece from bottom to top, and described nut 8 revolves to be put at pull bar 5 upper external screw thread places.
Claims (1)
1, a kind of stay cable internal damper that has adaptive stay cable eccentricity and possess auto-lock function, it is characterized in that described damper is arranged between the interior embedded steel tube (4) of suspension cable (1) and case beam or tower, comprise Hough formula block rubber (3), carve piece (2), pull bar (5) and nut (8), spring (7) and pressing plate (6), described Hough formula block rubber (3) is fixedly mounted on outside the suspension cable (1) at suspension cable ground tackle position, the outer rim of two ends up and down of described Hough formula block rubber (3) is arranged to cone-shaped, described carve piece (2) have how right, manyly be embedded between the outer rim of two ends up and down and embedded steel tube (4) of described Hough formula block rubber (3) carving the piece spaced radial, with a pair of carve piece up and down two carve piece (2) and be provided with in opposite directions, described pull bar (5) also has many, many pull bars (5) plug-in mounting respectively are connected each to carving two carving between the piece (2) up and down of piece, described pull bar (5) upper end is stretched out every couple of top of carving piece and is carved outside the piece (2), pull bar (5) upper end is shaped on external screw thread, described pressing plate (6), spring (7) and pad (9) are sleeved on the described top pull bar (5) of carving piece (2) top from bottom to top, and described nut (8) revolves to be put at pull bar (5) upper external screw thread place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100306389A CN101545244B (en) | 2009-04-27 | 2009-04-27 | Stay cable internal damper with adaptive stay cable eccentricity and self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100306389A CN101545244B (en) | 2009-04-27 | 2009-04-27 | Stay cable internal damper with adaptive stay cable eccentricity and self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101545244A true CN101545244A (en) | 2009-09-30 |
| CN101545244B CN101545244B (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100306389A Active CN101545244B (en) | 2009-04-27 | 2009-04-27 | Stay cable internal damper with adaptive stay cable eccentricity and self-locking function |
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| CN (1) | CN101545244B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN105951596A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Stay cable built-in type shock absorption damper |
| CN107151975A (en) * | 2017-06-08 | 2017-09-12 | 商丘工学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN107401119A (en) * | 2017-08-03 | 2017-11-28 | 柳州欧维姆机械股份有限公司 | Big stroke drag-line |
| CN111549665A (en) * | 2020-04-07 | 2020-08-18 | 江苏法尔胜缆索有限公司 | Fire-resistant built-in damping stay cable |
| CN114481812A (en) * | 2022-03-23 | 2022-05-13 | 南京工大交通科学研究院(滁州)有限公司 | Self-adaptive eccentric shock absorber for steel strand inhaul cable |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328517A (en) * | 1999-05-17 | 2000-11-28 | Hayakawa Rubber Co Ltd | Vibration controller for cable |
| CN2393907Y (en) * | 1999-11-10 | 2000-08-30 | 柳州市建筑机械总厂 | Vibration absorbing device for staying cables of bridge |
| CN2799662Y (en) * | 2005-06-01 | 2006-07-26 | 上海市政工程设计研究院 | Shock damper for diagonal cable |
| KR100521010B1 (en) * | 2005-06-30 | 2005-11-15 | 주식회사 도화종합기술공사 | Safety inspection apparatus of bridge structures |
| CN1730830A (en) * | 2005-08-01 | 2006-02-08 | 江苏法尔胜新日制铁缆索有限公司 | Built-in hydraulic vibration damper for stay cable and connection method thereof |
| KR100674594B1 (en) * | 2005-09-21 | 2007-01-25 | 한양대학교 산학협력단 | Device and method for mitigating the cable vibration in cable-stayed bridge |
| CN200981971Y (en) * | 2006-05-08 | 2007-11-28 | 丁美林 | Built-in type hydraulic damper |
-
2009
- 2009-04-27 CN CN2009100306389A patent/CN101545244B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN102733303B (en) * | 2012-07-06 | 2015-01-14 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN105951596A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Stay cable built-in type shock absorption damper |
| CN107151975A (en) * | 2017-06-08 | 2017-09-12 | 商丘工学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN107401119A (en) * | 2017-08-03 | 2017-11-28 | 柳州欧维姆机械股份有限公司 | Big stroke drag-line |
| CN107401119B (en) * | 2017-08-03 | 2022-12-16 | 柳州欧维姆机械股份有限公司 | Large-expansion-amount inhaul cable |
| CN111549665A (en) * | 2020-04-07 | 2020-08-18 | 江苏法尔胜缆索有限公司 | Fire-resistant built-in damping stay cable |
| CN114481812A (en) * | 2022-03-23 | 2022-05-13 | 南京工大交通科学研究院(滁州)有限公司 | Self-adaptive eccentric shock absorber for steel strand inhaul cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101545244B (en) | 2010-12-08 |
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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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU FASTEN CABLE CO., LTD. Free format text: FORMER NAME: FAERSHENG XINRIZHITIE CABLES CO., LTD., JIANGSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214445, Jiangsu City, Jiangyin Province Huang Town, Cheng Chang Industrial Development Zone Patentee after: Jiangsu Fasten Rope Co., Ltd. Address before: 214445, Jiangsu City, Jiangyin Province Huang Town, Cheng Chang Industrial Development Zone Patentee before: Faersheng Xinrizhitie Cables Co., Ltd., Jiangsu |