CN203688194U - Angle of wind deflection conversion device for large-span bridge wind tunnel testing - Google Patents
Angle of wind deflection conversion device for large-span bridge wind tunnel testing Download PDFInfo
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- CN203688194U CN203688194U CN201320657056.5U CN201320657056U CN203688194U CN 203688194 U CN203688194 U CN 203688194U CN 201320657056 U CN201320657056 U CN 201320657056U CN 203688194 U CN203688194 U CN 203688194U
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Abstract
An angle of wind deflection conversion device for a large-span bridge wind tunnel testing is disclosed. A large-span bridge wind tunnel testing model is conveniently moved, the angle of wind deflection is changed, wind-induced vibration in variant angles of wind deflection is studied, and unfavorable influence on the structure is effectively prevented. The angle of wind deflection conversion device comprises a supporting steel plate for supporting and fixing the testing model; and travelling cars at intervals arranged along the supporting steel plate and detachably connected with the supporting steel plate.
Description
Technical field
The utility model relates to wind tunnel test equipment, relates in particular to a kind of conversion equipment for Loads of Long-span Bridges wind tunnel test angle of wind deflection.
Background technology
For Loads of Long-span Bridges, often need to utilize wind tunnel test to carry out Study of Wind-Resistant Behavior, wherein the test of full-bridge aeroelastic model can reflect aerodynamic stability and the wind-induced vibration response of bridge structure in real atmosphere boundary layer more truly.In wind tunnel test, often study and buffet morely for full-bridge, because buffeting is the vibration of a kind of amplitude limit, occurrence frequency is high, though can not cause that bridge ruins accident, can cause the fatigue of structure; Excessive amplitude even jeopardizes traffic safety.And the least favorable situation of buffeting response is not necessarily under normal direction landscape condition, may under the skew wind effect with certain angle of wind deflection, occur.
And in various wind-induced vibration phenomenons, flutter is the most dangerous a kind of divergence form chattering.It has been generally acknowledged that and the wind comes from direction and spanning when orthogonal, its critical wind speed of flutter is minimum, is worst.But the natural wind at bridge site place seldom and bridge axis perpendicular, often become a drift angle, about studies show that the minimum critical wind speed of flutter of bridge may occur in average mark and become with spanning the skew wind situation of a certain drift angle.Such as flat case beam.Under non-zero degree situations of attack, its traditional method has not been aweather worst operating mode, therefore needs to consider critical wind speed of flutter under various angle of wind deflection, finds out minimum critical wind speed of flutter, can the be content to retain sovereignty over a part of the country full Bridge Design of carrying out.
While utilizing the buffeting response of full-bridge aeroelastic model to bridge and flutter to carry out wind tunnel test, in the past owing to lacking drift angle and angle of attack adjusting gear flexibly, particularly in large-scale boundary layer wind tunnel, because model is comparatively huge, it is more difficult that model changes angle of wind deflection, and artificial moving and easily model being caused damage, therefore, for the less consideration of impact of angle of wind deflection and the wind angle of attack, often only carry out the test of 0 ° of drift angle.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment, with mobile Loads of Long-span Bridges model in wind tunnel easily, change its angle of wind deflection, study charming appearance and behaviour oscillation phenomenon under its different angle of wind deflection, can effectively avoid structure to cause adverse effect.
It is as follows that the utility model solves the technical scheme that its technical matters adopts:
Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment of the present utility model, is characterized in that it comprises: supporting steel plate, for supporting fixation test model; Travelling car, arranges along supporting steel plate interval and removably connects with supporting steel plate.
The beneficial effects of the utility model are, test model are fixed on to this device upper, can in wind tunnel laboratory, move easily to model, and by changing angle of wind deflection, compare directly moving and rotational model in the past, can effectively avoid structural damage, operate more light.
Brief description of the drawings
This instructions comprises following two width accompanying drawings:
Fig. 1 is the vertical view of the utility model Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment;
Fig. 2 is the front elevation (part) of the utility model Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment;
Parts shown in figure and corresponding mark: unit steel plate 11, junction steel plate 12, coupling bolt 13, vehicle frame 21, wheel shaft 22, set bolt 23.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1 Fig. 2, the utility model Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment comprises: supporting steel plate, for supporting fixation test model; Travelling car, arranges along supporting steel plate interval and removably connects with supporting steel plate.
Described travelling car is made up of vehicle frame 21 and the wheel shaft 22 that is installed on its transverse ends, and wheel shaft 22 is positioned at outside supporting steel plate cross side.For simplified structure, described vehicle frame 21 can adopt a fluted body steel plate, removably connects with supporting steel plate by the set bolt 23 along its longitudinal separation setting.Described supporting steel plate is longitudinally spliced by least two junction steel plates 12.For adapting to easily the needs of different size test model, 12 settings of adjacent two junction steel plate and its overlap joint junction steel plate 12 of described supporting steel plate, and removably connect and be integrated by coupling bolt 13.
When use, first whole test model is positioned on this conversion equipment, bridge tower is connected with device by bolt, in the bottom such as bridge tower and auxiliary pier, junction steel plate is set, and directly carries out bolt with bolt.Then whole device center is connected with a center of turntable in wind tunnel laboratory.In the time that needs are changed angle of wind deflection, set bolt on each travelling car 23 is tightened, whole supporting steel plate will be mentioned to built on stilts, then on the set bolt 23 of travelling car that installs supporting steel plate two ends, put rope, be rotated, turned an angle, then set bolt 23 is screwed out, conversion equipment touch ground and is fixed.
Some principles of the above the utility model Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (5)
1. Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment, is characterized in that it comprises: supporting steel plate, for supporting fixation test model; Travelling car, arranges along supporting steel plate interval and removably connects with supporting steel plate.
2. Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment as claimed in claim 1, is characterized in that: described travelling car by vehicle frame (21) and be installed on its transverse ends wheel shaft (22) form, wheel shaft (22) is positioned at outside supporting steel plate cross side.
3. Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment as claimed in claim 2, is characterized in that: described vehicle frame (21) is a fluted body steel plate, removably connects by the set bolt (23) and the supporting steel plate that arrange along its longitudinal separation.
4. the Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment as described in one top as any in claims 1 to 3, is characterized in that: described supporting steel plate is longitudinally spliced by least two junction steel plates (12).
5. Loads of Long-span Bridges wind tunnel test angle of wind deflection conversion equipment as claimed in claim 4, it is characterized in that: between adjacent two junction steel plates (12) of described supporting steel plate, arrange and its overlap joint junction steel plate (12), and removably connect and be integrated by coupling bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657056.5U CN203688194U (en) | 2013-10-23 | 2013-10-23 | Angle of wind deflection conversion device for large-span bridge wind tunnel testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657056.5U CN203688194U (en) | 2013-10-23 | 2013-10-23 | Angle of wind deflection conversion device for large-span bridge wind tunnel testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688194U true CN203688194U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657056.5U Expired - Fee Related CN203688194U (en) | 2013-10-23 | 2013-10-23 | Angle of wind deflection conversion device for large-span bridge wind tunnel testing |
Country Status (1)
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| CN (1) | CN203688194U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535288A (en) * | 2014-12-19 | 2015-04-22 | 西南交通大学 | Wind tunnel experiment device for testing bridge aerodynamic parameters under skew wind action |
| CN106323584A (en) * | 2016-10-27 | 2017-01-11 | 中国航天空气动力技术研究院 | Rotary plate device of wind tunnel test section |
| CN106441783A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field |
| CN106441784A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for measuring static three-component force coefficient of cable-suspended piping bridge |
| CN109406088A (en) * | 2018-10-31 | 2019-03-01 | 沪东中华造船(集团)有限公司 | A kind of production method of steel runner automobile wind tunnel diffuser |
| CN110319808A (en) * | 2019-06-10 | 2019-10-11 | 华南理工大学 | Obliquity sensor measures long-span arch bridge change of arch costal shape accuracy prediction and appraisal procedure |
| CN110967162A (en) * | 2019-12-27 | 2020-04-07 | 西南交通大学 | Wind tunnel test device for testing aerodynamic force of vehicle under effect of bridge tower wake flow |
-
2013
- 2013-10-23 CN CN201320657056.5U patent/CN203688194U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535288A (en) * | 2014-12-19 | 2015-04-22 | 西南交通大学 | Wind tunnel experiment device for testing bridge aerodynamic parameters under skew wind action |
| CN106323584A (en) * | 2016-10-27 | 2017-01-11 | 中国航天空气动力技术研究院 | Rotary plate device of wind tunnel test section |
| CN106441783A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field |
| CN106441784A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for measuring static three-component force coefficient of cable-suspended piping bridge |
| CN106441784B (en) * | 2016-11-25 | 2018-08-31 | 中国石油天然气集团公司 | Measure the experimental rig of pipeline suspension bridge static coefficients |
| CN109406088A (en) * | 2018-10-31 | 2019-03-01 | 沪东中华造船(集团)有限公司 | A kind of production method of steel runner automobile wind tunnel diffuser |
| CN109406088B (en) * | 2018-10-31 | 2021-06-01 | 沪东中华造船(集团)有限公司 | Manufacturing method of automobile wind tunnel diffusion section with steel runner |
| CN110319808A (en) * | 2019-06-10 | 2019-10-11 | 华南理工大学 | Obliquity sensor measures long-span arch bridge change of arch costal shape accuracy prediction and appraisal procedure |
| CN110967162A (en) * | 2019-12-27 | 2020-04-07 | 西南交通大学 | Wind tunnel test device for testing aerodynamic force of vehicle under effect of bridge tower 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 |
Granted publication date: 20140702 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |