CN203361000U - Pier capable of restraining streaming through concave ribs on surface of pier body - Google Patents
Pier capable of restraining streaming through concave ribs on surface of pier body Download PDFInfo
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- CN203361000U CN203361000U CN 201320400602 CN201320400602U CN203361000U CN 203361000 U CN203361000 U CN 203361000U CN 201320400602 CN201320400602 CN 201320400602 CN 201320400602 U CN201320400602 U CN 201320400602U CN 203361000 U CN203361000 U CN 203361000U
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- pier
- rib
- pier body
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- streaming
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Abstract
The utility model provides a pier capable of restraining streaming through concave ribs on the surface of a pier body. The pier comprises the pier body, and at least part of the surface of the pier body is provided with the concave ribs extending longitudinally. Preferably, the pier body is cylindrical. Preferably, the rib height of each concave rib is 0.07-0.15 time of the diameter of the pier body. The pier can restrain streaming, and then the purpose of reducing vibration damage to the pier is achieved.
Description
Technical field
The utility model relates to the recessed rib in a kind of pier surface and streams bridge pier.
Background technology
In across river, Oversea bridge; the damage that the bridge pier vibratory response that environmental load causes causes bridge pier can not be ignored; but; current technical level is difficult to by directly changing the size of environmental load; reach the purpose of the vibration damage that reduces bridge pier; therefore feasible and effective mode is that bridge pier is taked to certain safeguard measure, controls or weakens the vibratory response of environmental load to bridge pier.
The utility model content
In view of this, the utility model provides the recessed rib in a kind of pier surface to stream bridge pier, by the pier surface, recessed rib being set, realizes suppressing the purpose of streaming, thereby reduces the vibration damage that bridge pier is subject to.
A kind of bridge pier that the utility model provides comprises: the pier body, the surface of described pier body arranges the recessed rib that prolongs longitudinal extension at least partly.
Further, described pier body is column type.
Further, the rib of described recessed rib height is 0.07 to 0.15 times of described pier body diameter.
Further, the rib of described recessed rib height is 0.09 to 0.13 times of described pier body diameter.
Further, the rib of described recessed rib height is 0.12 times of described Cylindrical Pier diameter.
The beneficial effects of the utility model:
The analysis showed that, streaming between current and bridge pier is to cause the vibrative key factor of bridge pier structure, therefore suppressing to stream is one of effective means solved the vibration damage that bridge pier causes by environmental load, therefore, the utility model, by the surface at the pier body, recessed rib is set, can reaches and suppress the effect stream, and then reach the purpose that reduces the vibration damage that bridge pier is subject to.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the structural representation that the recessed rib in pier of the present utility model surface streams the embodiment of bridge pier.
The specific embodiment
Please refer to Fig. 1, it is the structural representation that the recessed rib in pier surface that the utility model provides streams the embodiment of bridge pier, it comprises: pier body 1, and the surface of pier body 1 is provided with the recessed rib 2 extended longitudinally at least partly, concrete, at least in the fluoran stream surface setting of pier body 1, prolong the recessed rib 2 of longitudinal extension, preferred, pier body 1 surface all arranges the recessed rib 2 extended longitudinally.
In the present embodiment, the pier body is preferably cylindrical structure, and its diameter is D, the rib height of recessed rib is h, and the high h of the rib of recessed rib is 0.007 to 0.15 times of pier body diameter D, the high h of the rib of preferred recessed rib is 0.09 to 0.13 times of pier body diameter D, preferred, and the high h of the rib of recessed rib is 0.12 times of Cylindrical Pier diameter D.
In the present embodiment, change high bridge pier model and the former bridge pier model (recessed rib is not set) of rib by 10 groups and flowed the comparative analysis under solid coupling, verify feasibility and the applicability of this measure.These the 10 groups high bridge pier models of different ribs are to set up under the prerequisite that does not weaken original bearing capacity, and except the rib High variation, other condition is all identical.In order to make the scale-model investigation achievement there is authenticity, according to the high h of bridge pier face rib and corresponding pier body section diameter D ratio different, set up the cross section model of 6 kinds of different operating modes and result of calculation in Table shown in one.Several performance analyses from table are known: when circumference adopts recessed rib cross section, the resistance coefficient on the surface of cylinder and lift coefficient have reduction in various degree, and the lift coefficient lower value is greater than resistance coefficient.Explanation is in the situation that the cylinder external diameter is constant cylindrical cross-section is made to recessed rib can effectively suppress to stream.Further 10 kinds of operating modes in analytical table are known, and when recessed rib height is 0.12D, the effect that inhibition is streamed is best, and now the resistance coefficient of periphery is 1.0849, while comparing without recessed rib, has reduced by 39.609%, and lift coefficient has reduced by 79.691%.
Table one:
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. a bridge pier, comprising: the pier body is characterized in that: the surface of described pier body arranges the recessed rib that prolongs longitudinal extension at least partly.
2. bridge pier as claimed in claim 1, it is characterized in that: described pier body is column type.
3. bridge pier as claimed in claim 2 is characterized in that: high for described pier body diameter 0.07 to 0.15 times of the rib of described recessed rib.
4. bridge pier as claimed in claim 3 is characterized in that: high for described pier body diameter 0.09 to 0.13 times of the rib of described recessed rib.
5. bridge pier as claimed in claim 4 is characterized in that: high for described Cylindrical Pier diameter 0.12 times of the rib of described recessed rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320400602 CN203361000U (en) | 2013-07-05 | 2013-07-05 | Pier capable of restraining streaming through concave ribs on surface of pier body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320400602 CN203361000U (en) | 2013-07-05 | 2013-07-05 | Pier capable of restraining streaming through concave ribs on surface of pier body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203361000U true CN203361000U (en) | 2013-12-25 |
Family
ID=49808788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320400602 Expired - Fee Related CN203361000U (en) | 2013-07-05 | 2013-07-05 | Pier capable of restraining streaming through concave ribs on surface of pier body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203361000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109376463A (en) * | 2018-11-16 | 2019-02-22 | 重庆科技学院 | Cylinder galloping wind-structure interaction method is flexibly supported under a kind of wake flow |
-
2013
- 2013-07-05 CN CN 201320400602 patent/CN203361000U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109376463A (en) * | 2018-11-16 | 2019-02-22 | 重庆科技学院 | Cylinder galloping wind-structure interaction method is flexibly supported under a kind of wake flow |
| CN109376463B (en) * | 2018-11-16 | 2022-10-28 | 重庆科技学院 | Elastic support cylindrical flow relaxation solid-liquid coupling analysis method under wake flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20170705 |