CN204612893U - Wind-resistance of Bridges wave wind tunnel test simulated waves device - Google Patents
Wind-resistance of Bridges wave wind tunnel test simulated waves device Download PDFInfo
- Publication number
- CN204612893U CN204612893U CN201520354050.XU CN201520354050U CN204612893U CN 204612893 U CN204612893 U CN 204612893U CN 201520354050 U CN201520354050 U CN 201520354050U CN 204612893 U CN204612893 U CN 204612893U
- Authority
- CN
- China
- Prior art keywords
- wind
- wave
- bent axle
- bridges
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model patent relates to a kind of bridge testing device, is specially Wind-resistance of Bridges wave wind tunnel test simulated waves device, comprises engine, sleeve, multiple vibration monomer and rubber covering layer; Described engine output end is connected with gear train assembly, described multiple vibration monomers are connected with gear train assembly by sleeve, described vibration monomer comprises bent axle, two connecting rods, described bent axle comprises king journal and two rod journals, and two connecting rod lower ends are hinged on two rod journals respectively; The upper end of two connecting rods is connected with rubber covering layer by spring; The king journal of bent axle is supported by support.The Wind-resistance of Bridges wave wind tunnel test simulated waves device that the utility model provides, moving and being elevated simulated waves motion by controlling rubber covering layer, recording under the influence of the waves, the stressing conditions of the buildingss such as bridge under wind effect.
Description
Technical field
The utility model patent relates to a kind of bridge testing device, is specially Wind-resistance of Bridges wave wind tunnel test simulated waves device.
Background technology
Wind is diversified to the harm that bridge causes, and bridge floor wind-induced vibration can cause people to lose the sense of security, serious even can suspend traffic.Along with the accumulation of time, bridge structure may shift to an earlier date fatigure failure, is the most seriously the tragedy causing bridge to ruin people to die.Present wind engineering of bridge mainly studies different types of rridges under different wind field condition, bridge structure static(al) effect and dynamic response.But for cross a river Longspan Bridge over strait, wind is not merely wind to this dynamic response under wind effect of the acting force of structure and structure on the impact of bridge.Because its flexibility is comparatively large, during design, need to consider the influence that stormy waves produces wind under bridge.Because in some cases, this influence can affect and change bridge Wind Field characteristic, and especially natural wind field is all typical stochastic process over time and space, there will be some emergency case at any time.Along with improving constantly of modern structure safety coefficient, the continuous enhancing of people's awareness of safety, when stormy waves even occurs hurricane billow comparatively greatly, this problem will seem particularly important.Determine that bridge wind load effect and wind resistance are the Main Means of Longspan Bridge anti-wind research by wind tunnel model test.But in test up to now, all do not consider when compared with high sea, wave is on the impact of wind field.When high sea produces, can become the barrier of wind field under bridge to a certain extent, bridge Wind Field characteristic is not at this time compared with when having a stormy waves, and wind is different to the effect that bridge produces, particularly large span, Flexible bridge, this effect more can not be ignored.
Utility model content
For above-mentioned technical matters, the utility model provides a kind of test unit, the impact that research wave motion produces bridge wind effect.
Concrete technical scheme is:
Wind-resistance of Bridges wave wind tunnel test simulated waves device, comprises engine, sleeve, multiple vibration monomer and rubber covering layer; Described engine output end is connected with gear train assembly, described multiple vibration monomers are connected with gear train assembly by sleeve, described vibration monomer comprises bent axle, two connecting rods, described bent axle comprises king journal and two rod journals, and two connecting rod lower ends are hinged on two rod journals respectively; The upper end of two connecting rods is connected with rubber covering layer by spring; The king journal of bent axle is supported by support.
Vertical distance between two rod journals that the wave height of water body wave is bent axle; The half wavelength of water body wave is king journal length between two rod journals; The cycle of water body wave and velocity of propagation are regulated by the ratio of gear of gear train assembly.Moved up and down by bent axle drivening rod, thus drive rubber covering layer to produce fluctuation formation bridge Imitating wave, carry out wind tunnel test.
The Wind-resistance of Bridges wave wind tunnel test simulated waves device that the utility model provides, moving horizontally and being elevated simulated waves motion by controlling rubber covering layer, recording under the influence of the waves, the dynamic and static properties of the buildingss such as bridge under wind effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model and implementation method thereof are further illustrated.
Fig. 1 is the sectional view of a device of the present utility model.
Embodiment
Accompanying drawings embodiment of the present utility model.As shown in Figure 1, Wind-resistance of Bridges wave wind tunnel test simulated waves device, comprises engine 1, sleeve 5, multiple vibration monomer and rubber covering layer 8; Described engine 1 output terminal is connected with gear train assembly 4, described multiple vibration monomers are connected with gear train assembly 4 by sleeve 5, described vibration monomer comprises bent axle 13, two connecting rods 7, described bent axle 13 comprises king journal and two rod journals, and two connecting rod 7 lower ends are hinged on two rod journals respectively; The upper end of two connecting rods 7 is connected with rubber covering layer 8 by spring 9; The king journal of bent axle 13 is supported by support 11.
Wind-resistance of Bridges wave wind tunnel test simulated waves device needs the experiment segment length 32m of wind-tunnel, wide 3m, high 2m, and blower fan driving power is 160KW.
According to the reality tested Bridge Design life-span time limit, get 100 years one, its location and meet maximum wind velocity, wind rose and the essential information such as wind speed for many years, need according to design, get the different air speed value being no more than maximum wind velocity, and obtain the related datas such as the velocity of wave of the corresponding water body wave of each air speed value, cycle and wave height by linear relationship and correlation experience.
Get maximum wind velocity value to test, then successively decrease wind speed, until a certain wind speed can not cause adverse effect to bridge.The corresponding wave height that the wind speed determined by above-mentioned steps is obtained determines the size of bent axle 13.The wave height of water body wave is as vertical distance between two rod journals being bent axle 13; The half wavelength of water body wave is king journal length between two rod journals; The cycle of water body wave and velocity of propagation are regulated by the ratio of gear of gear train assembly 4.
The length of connecting rod 7 needs to determine according to test, mainly relevant with the model of bridge, and object guarantees that the distance between wave and bridge is suitable for.Spring 9 length of connecting rod 7 upper end is determined according to the length of connecting rod 7, is 1/5 of connecting rod 7 length.
Bridge main beam Segment Model is adopted to test, on test chamber ground, multiple vibration monomer connects according to wave effect region by down wind successively, and beam wind arranges rubber covering layer to according to wave width, is arranged in juxtaposition multiple stage wave simulation wave device and synchronous operation under layer.Bent axle 13 rotates, and connecting rod 7 moves up and down, and drives rubber covering layer 8 above to form wave-like.After reliablely and stablely simulated waves to be achieved motion, carry out wind tunnel test, test one by one according to above-mentioned satisfactory air speed value, because wave height corresponding to each wind speed, wavelength, cycle and velocity of wave, so will corresponding data be obtained.Wind speed by wave effect is tested one by one, can obtain in wave effect situation, bridge is to the load response of different wind speed, by the impact of wave on wind characteristic and then the impact on bridge structure can be obtained on the com-parison and analysis of each group of data, then according to designing requirement, corresponding safety prevention measure is taked to bridge.
Claims (1)
1. Wind-resistance of Bridges wave wind tunnel test simulated waves device, is characterized in that: comprise engine (1), sleeve (5), multiple vibration monomer and rubber covering layer (8); Described engine (1) output terminal is connected with gear train assembly (4), described multiple vibration monomers are connected with gear train assembly (4) by sleeve (5), described vibration monomer comprises bent axle (13), two connecting rods (7), described bent axle (13) comprises king journal and two rod journals, and two connecting rod (7) lower ends are hinged on two rod journals respectively; The upper end of two connecting rods (7) is connected with rubber covering layer (8) by spring (9); The king journal of bent axle (13) is supported by support (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354050.XU CN204612893U (en) | 2015-05-28 | 2015-05-28 | Wind-resistance of Bridges wave wind tunnel test simulated waves device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354050.XU CN204612893U (en) | 2015-05-28 | 2015-05-28 | Wind-resistance of Bridges wave wind tunnel test simulated waves device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204612893U true CN204612893U (en) | 2015-09-02 |
Family
ID=53965443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520354050.XU Expired - Fee Related CN204612893U (en) | 2015-05-28 | 2015-05-28 | Wind-resistance of Bridges wave wind tunnel test simulated waves device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204612893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849021A (en) * | 2015-05-28 | 2015-08-19 | 山东科技大学 | Wind and wave-resistant wind tunnel testing wave simulation device for bridge and simulation method thereof |
| CN113155398A (en) * | 2021-06-03 | 2021-07-23 | 长沙理工大学 | Working method of experimental system for bridge |
-
2015
- 2015-05-28 CN CN201520354050.XU patent/CN204612893U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849021A (en) * | 2015-05-28 | 2015-08-19 | 山东科技大学 | Wind and wave-resistant wind tunnel testing wave simulation device for bridge and simulation method thereof |
| CN104849021B (en) * | 2015-05-28 | 2018-05-22 | 山东科技大学 | Wind-resistance of Bridges wave wind tunnel test simulated waves device and its analogy method |
| CN113155398A (en) * | 2021-06-03 | 2021-07-23 | 长沙理工大学 | Working method of experimental system for bridge |
| CN113155398B (en) * | 2021-06-03 | 2022-07-29 | 长沙理工大学 | Working method of experimental system for bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liang et al. | Investigation on wind tunnel tests of a full aeroelastic model of electrical transmission tower-line system | |
| Gu et al. | Experimental investigation of rain–wind-induced vibration of cables in cable-stayed bridges and its mitigation | |
| CN204458973U (en) | A kind of simple liquid damping TMD | |
| Zhu et al. | Flutter and buffeting performances of Third Nanjing Bridge over Yangtze River under yaw wind via aeroelastic model test | |
| CN105388926A (en) | Air blowing method for controlling vortex-induced vibration of large-span bridge steel box girder | |
| CN103683086B (en) | Power transmission circuit caused by windage transient state analyzing method under the effect of motion thunderstorm wind | |
| CN102222126B (en) | Method for simulating numerical value of graded crushed stone tri-axial test | |
| CN204612893U (en) | Wind-resistance of Bridges wave wind tunnel test simulated waves device | |
| CN104894968A (en) | Bridge tower for large-span bridge capable of resisting strong wind/typhoons | |
| Thepmongkorn et al. | Interference effects on wind-induced coupled motion of a tall building | |
| CN105865821A (en) | Fabricated double-tower ground anchor type suspension bridge model test system | |
| Cermak | Wind-tunnel testing of structures | |
| CN105319048B (en) | A kind of method that pipeline suspension bridge wind resistant property is simulated in wind tunnel test | |
| Yang et al. | Vortex-excited force evolutionary characteristics of split three-box girder bridges during vortex-induced vibration | |
| Zhang et al. | Failure analysis of large‐scale wind power structure under simulated typhoon | |
| CN104849021A (en) | Wind and wave-resistant wind tunnel testing wave simulation device for bridge and simulation method thereof | |
| Ke et al. | Full-scale measurements and damping ratio properties of cooling towers with typical heights and configurations | |
| Jian et al. | Buffeting response of cable-stayed bridge during construction under skew winds and pylon interference | |
| Jing et al. | Wake-induced vibrations of tandem flexible cable models in a wind tunnel | |
| CN105274936A (en) | Vibration inhibition method and apparatus for controlling vibration of bridge tower | |
| CN202735062U (en) | Pendulum type aeroelastic model | |
| CN104764579A (en) | Wind tunnel test device for three-freedom-degree waving of multi-bundle iced conductor | |
| Huang et al. | Experimental study on wind-induced dynamic interference effects between two tall buildings | |
| CN103696358B (en) | The multiple span bridge beam bridge damping device that a kind of earthquake acceleration activates | |
| Shimizu et al. | A wind tunnel study on aerodynamic characteristics of ice accreted transmission lines |
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: 20150902 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |