CN110373994B - Assembled pier with damping function - Google Patents
Assembled pier with damping function Download PDFInfo
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- CN110373994B CN110373994B CN201910776505.XA CN201910776505A CN110373994B CN 110373994 B CN110373994 B CN 110373994B CN 201910776505 A CN201910776505 A CN 201910776505A CN 110373994 B CN110373994 B CN 110373994B
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- pier
- boss
- annular wall
- groove
- vibration
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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
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention discloses an assembly type pier with a vibration reduction function, which comprises a plurality of assembly units which can be sequentially spliced into a whole from bottom to top; the assembly unit comprises a pier unit body and a vibration reduction ring body; the top of each pier unit body protrudes outwards to form a boss, the bottom of each pier unit body protrudes inwards to form a groove, the outer diameter of each boss is equal to the inner diameter of each groove, and the height of each boss is larger than the depth of each groove; the damping ring body is sleeved outside the boss, and the height of the damping ring body is equal to the difference between the height of the boss and the depth of the groove; the vibration reduction ring body comprises a closed ring-shaped shell, a shaft sleeve, blades, a hollow hemisphere, a solid sphere and liquid. The assembled bridge pier with the vibration damping function provided by the invention can reduce the vibration amplitude and the vibration frequency of the bridge pier and reduce the influence of wind load, traveling load and earthquake on the bridge pier.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to an assembly type bridge pier with a vibration reduction function.
Background
The fabricated bridge pier is a bridge construction technology which is fabricated directly on a construction site after each fabricated unit is prefabricated in a factory, can reduce construction cost, shorten construction period and reduce the influence on traffic and environment around the construction site. The assembled pier can vibrate under the influence of external factors such as wind load, driving load and the like, the service life of the bridge can be influenced if the vibration amplitude of the pier is large and the frequency is high, and meanwhile, when an earthquake occurs, the pier without the vibration reduction function is more seriously damaged.
Therefore, in order to solve the above problems, there is a need for a fabricated pier having a vibration damping function that can reduce the vibration amplitude and frequency of the pier and reduce the influence of wind load, traveling load, and earthquake on the pier.
Disclosure of Invention
In view of the above, the present invention is directed to overcome the defects in the prior art, and to provide a fabricated pier with a vibration damping function, which can reduce the vibration amplitude and the vibration frequency of the pier, and reduce the influence of wind load, traveling load and earthquake on the pier.
The assembly type pier with the vibration reduction function comprises a plurality of assembly units which can be sequentially spliced into a whole from bottom to top; the assembly unit comprises a pier unit body and a vibration reduction ring body; the top of each pier unit body protrudes outwards to form a boss, the bottom of each pier unit body protrudes inwards to form a groove, the outer diameter of each boss is equal to the inner diameter of each groove, and the height of each boss is larger than the depth of each groove; the damping ring body is sleeved outside the boss, and the height of the damping ring body is equal to the difference between the height of the boss and the depth of the groove; the damping torus comprises a closed annular shell, a shaft sleeve, a plurality of blades, hollow hemispheroids, solid spheres and liquid, wherein the shaft sleeve is rotatably arranged in a cavity of the closed annular shell, the plurality of blades are circumferentially arranged on the outer wall of the shaft sleeve at equal intervals, the hollow hemispheroids are respectively fixed at the bottoms of the blades, and the solid spheres are respectively placed in the hollow hemispheroids and the liquid is arranged in the closed annular shell.
Furthermore, damping tourus top is provided with flexible buffer layer, damping tourus internal diameter equals the boss external diameter.
Furthermore, the closed annular shell comprises a shell bottom, a shell cover, an inner side annular wall and an outer side annular wall, the inner side annular wall and the outer side annular wall are sequentially arranged along the radial direction, the inner side annular wall and the outer side annular wall form a closed cavity through the shell bottom and the shell cover, the shaft sleeve is sleeved on the inner side annular wall, and the shaft sleeve is in clearance fit with the inner side annular wall.
Further, when the vibration reduction ring body is horizontally placed, the hollow hemispheroid is abutted against and contacted with the shell bottom, and the liquid level of the liquid is not higher than the top of the blade.
Further, a gap is arranged between the blade and the outer side annular wall.
Further, the liquid is methyl silicone oil, the solid spheres are ceramic spheres, and the flexible buffer layer is a rubber gasket.
Furthermore, a plurality of positioning steel bar mounting holes are formed in the pier unit body at intervals along the circumferential direction, and positioning steel bars are mounted in the positioning steel bar mounting holes.
Furthermore, the axis of the positioning steel bar mounting hole is parallel to the axis of the pier unit body, and the positioning steel bar mounting hole is formed by penetrating a hole in the boss towards the groove direction.
Furthermore, the positioning steel bars extend outwards to protrude out of the bosses, and the length of the positioning steel bars is not greater than that of the positioning steel bar mounting holes.
The invention has the beneficial effects that: the invention discloses an assembly type bridge pier with a vibration reduction function, wherein when the bridge pier vibrates under the influence of wind load, driving load and earthquake, the vibration is transmitted to a closed annular shell, on one hand, the vibration energy can enable liquid to shake, the liquid shakes to drive blades to shake so as to cause a shaft sleeve to rotate, on the other hand, the closed annular shell vibrates and the shaft sleeve rotates so as to enable a hollow hemisphere to move, the solid sphere moves to other positions in the hollow hemisphere from the lowest point in the movement process and then returns to the lowest point under the action of gravity, and in the process, the energy can be consumed by the liquid shaking, the shaft sleeve rotating and the solid sphere moving, so that the vibration amplitude and frequency of the bridge pier are reduced, and the influence of the wind load, the driving load and the earthquake on the bridge pier are reduced.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a pier unit according to the present invention;
FIG. 3 is a schematic cross-sectional view of a pier unit cell according to the present invention;
FIG. 4 is a schematic view of the damping torus of the present invention;
FIG. 5 is a schematic cross-sectional view of a damping torus of the present invention;
FIG. 6 is a schematic view of the connection structure of the shaft sleeve, the blades, the hollow hemispheroid and the solid sphere in the damping ring body of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic structural view of a pier unit body of the present invention, fig. 3 is a schematic sectional view of the pier unit body of the present invention, fig. 4 is a schematic structural view of a vibration-damping torus of the present invention, fig. 5 is a schematic sectional view of the vibration-damping torus of the present invention, and fig. 6 is a schematic structural view of a connection of a bushing, a blade, a hollow hemisphere and a solid sphere in the vibration-damping torus of the present invention. As shown in fig. 1 to 6, the assembly pier with vibration reduction function in this embodiment includes several assembly units that can be sequentially spliced into a whole from bottom to top; the assembly unit comprises a pier unit body 1 and a vibration reduction ring body 2; the top of each pier unit body 1 protrudes outwards to form a boss 101, the bottom of each pier unit body 1 is recessed inwards to form a groove 102, the outer diameter of each boss 101 is equal to the inner diameter of each groove 102, and the height of each boss 101 is larger than the depth of each groove 102; the damping ring body 2 is sleeved outside the boss 101, and the height of the damping ring body 2 is equal to the difference between the height of the boss 101 and the depth of the groove 102; the damping torus 2 comprises a closed annular shell 201, a shaft sleeve 202 rotatably arranged in the cavity of the closed annular shell 201, a plurality of blades 203 arranged on the outer wall of the shaft sleeve 202 at equal intervals along the circumferential direction, hollow hemispheroids 204 respectively fixed at the bottoms of the blades 203, solid spheres 205 respectively arranged in the hollow hemispheroids 204, and liquid 206 arranged in the closed annular shell 201. During the use, prefabricated pier cell cube 1 and damping tourus 2 in the mill, then become the assembly unit with pier cell cube 1 and the assembly of damping tourus 2, from the bottom up assembles into a whole with an assembly unit in proper order, realize the assembly of pier, when two adjacent pier cell cubes 1 assemble, the boss 101 of below pier cell cube 1 inserts the recess 102 of top pier cell cube 1, and because boss 101 height is greater than the recess 102 degree of depth and the damping tourus 2 height equals the difference of boss 101 height and recess 102 degree of depth, so the upper and lower terminal surface of damping tourus 2 contacts with these two pier cell cubes 1 respectively. When the bridge pier vibrates under the influence of wind load, traveling load and earthquake, the vibration can be transmitted to the closed annular shell 201, at the moment, on one hand, the vibration energy can enable the liquid 206 to shake, the liquid 206 shakes to drive the blades 203 to shake so as to cause the shaft sleeve 202 to rotate, on the other hand, the vibration of the closed annular shell 201 and the rotation of the shaft sleeve 202 can enable the hollow hemisphere 204 to move, the solid sphere can move to other positions in the hollow hemisphere 204 from the lowest point in the movement process and then returns to the lowest point under the action of gravity, the energy can be consumed by the liquid 206 shaking, the rotation of the shaft sleeve 202 and the movement of the solid sphere in the process, the vibration amplitude and the vibration frequency of the bridge pier are reduced, and the influence of the wind load, the traveling load and.
In this embodiment, damping torus 2 top is provided with flexible buffer layer 207, damping torus 2 internal diameter equals boss 101 external diameter. The flexible buffer layer 207 can adapt to the expansion with heat and contraction with cold of the pier unit bodies 1, and the vibration reduction annular body 2 is prevented from being damaged by the compression of the pier unit bodies 1 on the upper side and the lower side.
In this embodiment, the closed annular housing 201 includes a housing bottom 201a, a housing cover 201b, an inner annular wall 201c and an outer annular wall 201d, the inner annular wall 201c and the outer annular wall 201d are sequentially arranged along a radial direction, the inner annular wall 201c and the outer annular wall 201d form a closed chamber through the housing bottom 201a and the housing cover 201b, and the shaft sleeve 202 is sleeved on the inner annular wall 201c and the shaft sleeve 202 is in clearance fit with the inner annular wall 201 c. The clearance fit allows a clearance to exist between the shaft sleeve 202 and the inner annular wall 201c, and the liquid 206 can enter between the shaft sleeve 202 and the inner annular wall 201c for lubrication after the liquid 206 is filled in the closed annular housing 201.
In this embodiment, when the damping torus 2 is placed horizontally, the hollow hemisphere 204 is in contact with the shell bottom 201a in an abutting manner, and the liquid level of the liquid 206 is not higher than the top of the blade 203. The hollow hemisphere 204 is in direct contact with the shell bottom 201a, so that vibration energy is transmitted to the hollow hemisphere 204 conveniently, the liquid level of the liquid 206 is not higher than the top of the blade 203, and the blade 203 is driven to move when the liquid 206 shakes.
In this embodiment, a gap is provided between the vane 203 and the outer annular wall 201 d. In this embodiment, two blades 203 are arranged, the blades 203 and the shaft sleeve 202 divide the inside of the closed annular housing 201 into two chambers, the hollow hemispheroid 204 is respectively spaced from the inner annular wall 201c and the outer annular wall 201d, so the bottoms of the two chambers are communicated, the liquid levels of the two chambers are flush, when the liquid 206 shakes and the blades 203 move, if a gap is formed between the blades 203 and the outer annular wall 201d, the liquid 206 in the two chambers can be exchanged, so that the liquid can not only flow from the gap near the hollow hemispheroid 204, but also flow through the gap between the blades 203 and the outer annular wall 201d, on one hand, the blades 203 can move more easily, and on the other hand, the liquid 206 in the two chambers can be kept at the same liquid level more easily.
In this embodiment, the liquid 206 is methyl silicone oil, the solid sphere 205 is a ceramic sphere, and the flexible buffer layer 207 is a rubber gasket. The methyl silicone oil is not volatile, so that the vibration can be prevented, and the lubricating oil can be used for lubrication; the porcelain ball has high hardness and is wear-resistant; rubber gaskets are commonly used flexible cushioning materials.
In this embodiment, a plurality of positioning steel bar 103 installation holes 104 are circumferentially arranged in the pier unit body 1 at intervals, and the positioning steel bars 103 are installed in the positioning steel bar 103 installation holes 104. Boss 101 and recess 102 cooperation can restrict pier unit body 1 along axial motion, sets up 4 spacer bars 103 in this embodiment and can prevent two adjacent pier unit bodies 1 relative rotation. Of course, the main body of the pier unit cell 1 is made of reinforced concrete of the prior art, and only the set-up bar 103 is shown in the drawings, not showing the bar structure in the reinforced concrete.
In this embodiment, the axis of the installation hole 104 of the positioning bar 103 is parallel to the axis of the pier unit 1, and the installation hole 104 of the positioning bar 103 is formed by penetrating a hole on the boss 101 in the direction of the groove 102. In order not to affect the installation of the damping torus 2, the positioning steel bars 103 are arranged on the boss 101.
In this embodiment, the positioning steel bars 103 extend outward and protrude out of the bosses 101, and the length of the positioning steel bars 103 is not greater than the length of the mounting holes 104 of the positioning steel bars 103. After the positioning steel bar 103 is installed in the positioning steel bar 103 mounting hole 104, because its length is less than positioning steel bar 103 mounting hole 104 length and one end protrusion in boss 101, so positioning steel bar 103 mounting hole 104 can leave the space, when two adjacent pier cell units 1 assemble, the positioning steel bar 103 of below pier cell unit 1 can insert the positioning steel bar 103 mounting hole 104 of top pier cell unit 1, realize the location, prevent that two pier cell units 1 from taking place relative rotation.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. Assembled pier with damping function, its characterized in that: the assembling unit comprises a plurality of assembling units which can be sequentially spliced into a whole from bottom to top; the assembly unit comprises a pier unit body and a vibration reduction ring body; the top of each pier unit body protrudes outwards to form a boss, the bottom of each pier unit body protrudes inwards to form a groove, the outer diameter of each boss is equal to the inner diameter of each groove, and the height of each boss is larger than the depth of each groove; the damping ring body is sleeved outside the boss, and the height of the damping ring body is equal to the difference between the height of the boss and the depth of the groove; the damping torus comprises a closed annular shell, a shaft sleeve, a plurality of blades, hollow hemispheroids, solid spheres and liquid, wherein the shaft sleeve is rotatably arranged in a cavity of the closed annular shell, the plurality of blades are circumferentially arranged on the outer wall of the shaft sleeve at equal intervals, the hollow hemispheroids are respectively fixed at the bottoms of the blades, and the solid spheres are respectively placed in the hollow hemispheroids and the liquid is arranged in the closed annular shell.
2. The fabricated pier having a vibration damping function according to claim 1, wherein: the damping tourus top is provided with flexible buffer layer, damping tourus internal diameter equals the boss external diameter.
3. The fabricated pier having a vibration damping function according to claim 2, wherein: the sealed annular shell comprises a shell bottom, a shell cover, an inner side annular wall and an outer side annular wall, wherein the inner side annular wall and the outer side annular wall are sequentially arranged along the radial direction, the inner side annular wall and the outer side annular wall form a sealed cavity through the shell bottom and the shell cover, the shaft sleeve is sleeved on the inner side annular wall, and the shaft sleeve is in clearance fit with the inner side annular wall.
4. The fabricated pier having a vibration damping function according to claim 3, wherein: when the vibration reduction ring body is horizontally placed, the hollow hemispheroid is abutted against and contacted with the shell bottom, and the liquid level of the liquid is not higher than the top of the blade.
5. The fabricated pier having a vibration damping function according to claim 4, wherein: and a gap is arranged between the blade and the outer side annular wall.
6. The fabricated pier having a vibration damping function according to claim 4, wherein: the liquid is methyl silicone oil, the solid ball is a ceramic ball, and the flexible buffer layer is a rubber gasket.
7. The fabricated pier having a vibration damping function according to claim 1, wherein: a plurality of positioning steel bar mounting holes are formed in the pier unit body at intervals along the circumferential direction, and positioning steel bars are mounted in the positioning steel bar mounting holes.
8. The fabricated pier having a vibration damping function according to claim 7, wherein: the axis of the positioning steel bar mounting hole is parallel to the axis of the pier unit body, and the positioning steel bar mounting hole is formed by penetrating a hole in the boss towards the groove direction.
9. The fabricated pier having a vibration damping function according to claim 8, wherein: the outside protrusion in boss that extends of positioning bar, positioning bar length is not more than positioning bar mounting hole length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776505.XA CN110373994B (en) | 2019-08-22 | 2019-08-22 | Assembled pier with damping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776505.XA CN110373994B (en) | 2019-08-22 | 2019-08-22 | Assembled pier with damping function |
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| CN110373994A CN110373994A (en) | 2019-10-25 |
| CN110373994B true CN110373994B (en) | 2020-11-24 |
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| CN201910776505.XA Active CN110373994B (en) | 2019-08-22 | 2019-08-22 | Assembled pier with damping function |
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| KR20040046673A (en) * | 2002-11-28 | 2004-06-05 | 동양종합건업 주식회사 | Precast Tall Pier for Bridge and Constructing Method therefor |
| JP2007182986A (en) * | 2005-12-05 | 2007-07-19 | Mitsubishi Heavy Ind Ltd | Vibration reducing damper |
| KR20080057108A (en) * | 2006-12-19 | 2008-06-24 | 재단법인 포항산업과학연구원 | Assembling-type pier |
| KR20080057514A (en) * | 2006-12-20 | 2008-06-25 | 재단법인 포항산업과학연구원 | Pier structure having precast segment |
| CN106087715A (en) * | 2016-08-19 | 2016-11-09 | 南京工业大学 | Damping device and damping method for assembled pier |
| CN106567591A (en) * | 2016-10-28 | 2017-04-19 | 同济大学 | Multilayer tuned liquid damper |
| CN207812275U (en) * | 2018-01-24 | 2018-09-04 | 浙江工业职业技术学院 | A kind of assembled bridge pier |
| CN108914765A (en) * | 2018-08-15 | 2018-11-30 | 石家庄铁道大学 | A kind of replaceable assembled damping bridge pier |
| CN208533755U (en) * | 2018-05-07 | 2019-02-22 | 同济大学 | Bead string type spring granule damper |
| CN110080094A (en) * | 2019-06-12 | 2019-08-02 | 重庆锦森腾建筑工程咨询有限公司 | Assembly concrete bridge pier |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100637385B1 (en) * | 2004-03-02 | 2006-10-23 | 학교법인 울산공업학원 | Aseismatic and reinforcing device of a lower structure of a bridge |
| CN203626078U (en) * | 2013-12-17 | 2014-06-04 | 湖南科技大学 | Ultra-low frequency modulation quality damper |
| KR101973701B1 (en) * | 2016-12-30 | 2019-04-29 | 이성 | Assembling type pier |
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2019
- 2019-08-22 CN CN201910776505.XA patent/CN110373994B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040046673A (en) * | 2002-11-28 | 2004-06-05 | 동양종합건업 주식회사 | Precast Tall Pier for Bridge and Constructing Method therefor |
| JP2007182986A (en) * | 2005-12-05 | 2007-07-19 | Mitsubishi Heavy Ind Ltd | Vibration reducing damper |
| KR20080057108A (en) * | 2006-12-19 | 2008-06-24 | 재단법인 포항산업과학연구원 | Assembling-type pier |
| KR20080057514A (en) * | 2006-12-20 | 2008-06-25 | 재단법인 포항산업과학연구원 | Pier structure having precast segment |
| CN106087715A (en) * | 2016-08-19 | 2016-11-09 | 南京工业大学 | Damping device and damping method for assembled pier |
| CN106567591A (en) * | 2016-10-28 | 2017-04-19 | 同济大学 | Multilayer tuned liquid damper |
| CN207812275U (en) * | 2018-01-24 | 2018-09-04 | 浙江工业职业技术学院 | A kind of assembled bridge pier |
| CN208533755U (en) * | 2018-05-07 | 2019-02-22 | 同济大学 | Bead string type spring granule damper |
| CN108914765A (en) * | 2018-08-15 | 2018-11-30 | 石家庄铁道大学 | A kind of replaceable assembled damping bridge pier |
| CN110080094A (en) * | 2019-06-12 | 2019-08-02 | 重庆锦森腾建筑工程咨询有限公司 | Assembly concrete bridge pier |
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| CN110373994A (en) | 2019-10-25 |
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Effective date of registration: 20201023 Address after: Unit 403, unit 5, century building, Lubei street, Luqiao District, Taizhou City, Zhejiang Province Applicant after: Taizhou jiawo Technology Co.,Ltd. Address before: 402246 no.57-17, Shuanghe Road, Shuangfu street, Jiangjin District, Chongqing (1-36, building 1, Tongfu International Building) Applicant before: Chongqing Dexin Jiyuan Technology Co.,Ltd. |
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Effective date of registration: 20230818 Address after: 431400 No. 3, East Side of Wangxing Road, Wangji Street, Xinzhou District, Wuhan City, Hubei Province Patentee after: WUHAN SANMU HESEN CONSTRUCTION Co.,Ltd. Address before: Room 403, unit 5, century building, Lubei street, Luqiao District, Taizhou City, Zhejiang Province 318050 Patentee before: Taizhou jiawo Technology Co.,Ltd. |
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