CN109297669A - Orographic winds field characteristic wind tunnel test test macro and test method - Google Patents
Orographic winds field characteristic wind tunnel test test macro and test method Download PDFInfo
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- CN109297669A CN109297669A CN201811316056.2A CN201811316056A CN109297669A CN 109297669 A CN109297669 A CN 109297669A CN 201811316056 A CN201811316056 A CN 201811316056A CN 109297669 A CN109297669 A CN 109297669A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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Abstract
The invention discloses a kind of orographic winds field characteristic wind tunnel test test macro and test methods, orographic winds field characteristic wind tunnel test test macro is used to obtain the wind field characteristic and distribution situation of complicated landform, including the relief model for simulating actual landform, it is installed on the turntable of wind-tunnel ground and is used to that relief model to be installed and adjust the wind angle regulating device of relief model wind angle and the test bracket for installing test equipment, test bracket is in the test point to be measured of relief model, multiple connectors for being used to install test equipment are equipped with along short transverse on test bracket, the wind speed of different height at test point is measured by the test equipment being respectively arranged on multiple connectors, the probe face wind-tunnel incoming flow of test equipment.
Description
Technical field
The present invention relates to orographic winds field characteristic the field of test technology, particularly, are related to a kind of for obtaining complicated landform
The orographic winds field characteristic test macro of wind field characteristic and distribution situation, in addition, further relating to a kind of using above-mentioned orographic winds field characteristic
The test method of wind tunnel test test macro.
Background technique
It is accurate to understand the basis that bridge site area wind field characteristic is Wind-resistance of Bridges design studies, only accurately grasp bridge site area wind field
Characteristic specifies Bridge Design wind speed standard, could be at bridge and construction stage wind-excited responese calculating analysis mention air supply parameter and
The simulation of atmospheric boundary layer wind field provides target value in wind tunnel model test, and then providing for the evaluation of bridge structure wind resistance can
The foundation leaned on.However current specifications describes the mathematical model of wind field characteristic and is usually only applicable in that landform is flat, wind field environment is specific
Landform still is not enough to describe the wind environment of complicated landform.For complicated landform wind characteristic main research means there are four types of, that is, manage
By analysis, field measurement, numerical simulation and wind tunnel test.But theory analysis is for the air-flow circumferential motion problem of actual complex landform,
It is difficult theoretically to solve；Higher for the field measured data confidence level in bridge site area, true reflects observation erect-position
The local air flow behavior set, but calculate that the analysis method of bridge site area wind field characteristic needs to establish based on field measured data
Sufficient amount of observation station, and need persistently quite long observation cycle, invest it is larger, and for complicated landform bridge site area,
The difficulty that observation station is established at girder and bridge tower position is larger；Method for numerical simulation can be reduced the investment of manpower and resource, still
Due to current numerical simulation technology turbulent flow with separate stream in limitation, the precision of numerical simulation calculation result is limited, mostly
Orographic winds field characteristic numerical simulation can only be directed to the better simply mountain relief of form, the numerical simulation result of actual complex landform with
Field measurement or results of wind tunnel deviation are larger；Relief model wind tunnel test is usually using actual landform as reference, according to certain
Scaling factor produce reflection actual landform feature relief model, with obtain specific position wind characteristic and entire complicated landform
Wind field distribution in region, but existing relief model wind tunnel test is only capable of obtaining regional area wind field characteristic, can not simulate and obtain
Obtain the wind field distribution under entire landform difference wind angle.
Summary of the invention
The present invention provides a kind of orographic winds field characteristic wind tunnel test test macro and test methods, to solve existing landform
The wind tunnel test of wind field characteristic can not simulate the technical issues of wind field distribution obtained under entire landform difference wind angle.
According to an aspect of the present invention, a kind of orographic winds field characteristic wind tunnel test test macro is provided, it is multiple for obtaining
The wind field characteristic and distribution situation of miscellaneous landform, including for simulating actual landform relief model, be installed on wind-tunnel ground turntable
On for installing relief model and adjusting the wind angle regulating device of relief model wind angle and for installing test equipment
Test bracket, test bracket is on the position to be measured of relief model, is equipped with multiple be used for along short transverse on test bracket
The connector for installing test equipment, measures different height at test point by the test equipment being respectively arranged on multiple connectors
Wind speed, the probe face wind-tunnel incoming flow of test equipment.
Further, test bracket is fixed on test room floor and is on the rotation centerline of wind angle regulating device,
And sequentially pass through wind-tunnel ground, wind-tunnel ground turntable, wind angle regulating device and landform mould positioned at laboratory above the ground
Type is extend out to above relief model；Connector is laid on the sponson of test bracket；Existed by the mobile relief model that adjusts
Position in wind angle regulating device is so that the tested point of relief model is on the rotation centerline of wind angle regulating device；It surveys
Test instrument is fixed on test bracket by connector, the spy of the probe of test equipment face wind-tunnel incoming flow and test equipment always
Needle is fixed with wind-tunnel incoming flow relative position.
Further, the test through-hole for wearing test bracket, wind angle are equipped at the test point to be measured of relief model
Regulating device include be installed on the turntable of wind-tunnel ground for installing the model turntable of relief model, model turntable be equipped with
The opposite turntable through-hole for being used to wear test bracket of the test through-hole of relief model, the overhanging end of test bracket sequentially pass through wind
Turntable through-hole below the central through hole of hole ground turntable, test point to be measured and the test through-hole at test point to be measured simultaneously pass through
The multiple test equipments being installed on multiple connectors measure the wind speed of different height at test point to be measured；Turned by wind-tunnel ground
Dribbling movable model turntable is rotated around test bracket to obtain the wind field characteristic at test point under different height and different wind angles.
Further, the radial dimension of model turntable is greater than or equal to the radial dimension of relief model, and wind angle adjusts dress
Set further includes being slided on wind-tunnel ground set on model turntable bottom surface and the pulley around the turntable of wind-tunnel ground by pulley
To reduce resistance of the wind-tunnel ground driven by rotary disc model turntable around test bracket rotation when.
Further, test bracket includes the mounting seat for being fixed on test room floor, the branch being fixed in mounting seat
Strut and the reference test bar that Telescopic rod structure is formed with support rod cooperation socket, connector are set on reference test bar.
Further, test bracket is fixed in the test point to be measured of relief model, and test equipment is rotated by connector
It is connected on test bracket, test equipment and connector composition wind vane structure and test equipment are located at wind vane structure wind surface
The lesser head of product, when wind angle regulating device adjusts the wind angle of relief model, wind vane structure be adjusted automatically so that
The probe face wind-tunnel incoming flow of test equipment.
Further, relief model is made of several model block assembly.
Further, model block is carved using rigid foam.
Further, model block is by being coated on the cured coating of model block outer surface to enhance the hardness of model block.
According to another aspect of the present invention, a kind of orographic winds field characteristic wind tunnel test methods are also provided, for obtaining bridge
The quasi- wind field characteristic for building position actually build position with determine bridge, surveyed using above-mentioned orographic winds field characteristic wind tunnel test
Test system, comprising the following steps: according to the quasi- position production relief model and true built of the actual landform in bridge site area and bridge
Fixed test point to be measured；Relief model is installed in wind angle regulating device and wind angle regulating device is installed on wind-tunnel ground
On turntable；Test bracket is installed at the test point to be measured of relief model and will be more according to the height and position of the quasi- bridge built
A tester is installed on test bracket on the connector of different height, by adjust wind direction angle apparatus adjustably shape model to not
It is tested under same wind angle to be measured, and multiple test equipments by being installed on test bracket measure under same wind angle
The wind speed of different height at test point to be measured, to measure different under difference wind angle at the difference test point to be measured of relief model
The wind speed of height, to obtain the quasi- wind field characteristic for building position of bridge；If the wind field characteristic at test point to be measured is not met
The wind force proofing design requirement of bridge, then by changing the position of test point to be measured to change the quasi- position of building of bridge up to bridge
The quasi- wind field characteristic for building position meets the wind force proofing design requirement of bridge, so that it is determined that bridge actually builds position.
The invention has the following advantages:
Orographic winds field characteristic wind tunnel test test macro of the invention installs the relief model for being used to simulate actual landform
It is installed on the turntable of wind-tunnel ground in wind angle regulating device and by wind angle regulating device, by dividing multiple test equipments
It is measured on multiple connectors on the test bracket not being installed in the test point to be measured of relief model different at test point to be measured
The wind speed of height, and by the wind angle of wind-tunnel ground driven by rotary disc wind angle regulating device adjusting relief model, to survey
The wind field characteristic at test point to be measured under difference wind angle is obtained, to simulate the wind field distribution for obtaining entire landform.Work as wind angle
When adjusting the wind angle of relief model, the equal face wind-tunnel incoming flow of the probe of test equipment no longer needs to install repeatedly regulating device
With the test equipment on dismantling connection part, avoids the error due to test equipment installation site and generate measurement error, improve
The consistency of data.
Orographic winds field characteristic wind tunnel test methods of the invention are tested by using above-mentioned orographic winds field characteristic wind tunnel test
System, quasi- according to the actual landform in bridge site area and bridge build position production relief model and determine that test point to be measured is laggard
Row test obtains the quasi- wind field characteristic for building position of bridge, if the wind field characteristic at test point to be measured does not meet the wind resistance of bridge
Design requirement then changes the quasi- wind force proofing design for building position until the quasi- wind field characteristic for building position of bridge meets bridge of bridge
It is required that ensure that the safety for actually building axle casing so that it is determined that bridge actually builds position.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the orographic winds field characteristic wind tunnel test test macro of the preferred embodiment of the present invention.
Marginal data:
1, relief model；11, through-hole is tested；2, model turntable；21, turntable through-hole；22, sliding equipment；3, test bracket；
31, connector；4, wind-tunnel ground turntable；41, central through hole.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the structural schematic diagram of the orographic winds field characteristic wind tunnel test test macro of the preferred embodiment of the present invention.
As shown in Figure 1, the orographic winds field characteristic wind tunnel test test macro of the present embodiment, for obtaining the wind of complicated landform
Field characteristic and distribution situation, including for simulating actual landform relief model 1, be installed on wind-tunnel ground turntable 4 and be used for
Installation relief model 1 simultaneously adjusts the wind angle regulating device of 1 wind angle of relief model and the test for installing test equipment
Bracket 3, test bracket 3 are in the test point to be measured of relief model 1, are equipped with multiple be used for along short transverse on test bracket 3
The connector 31 for installing test equipment is measured different at test point by the test equipment being respectively arranged on multiple connectors 31
The wind speed of height, the probe face wind-tunnel incoming flow of test equipment.Orographic winds field characteristic wind tunnel test test macro of the invention, will
Relief model 1 for simulating actual landform is installed in wind angle regulating device and wind angle regulating device is installed on wind-tunnel
On ground turntable 4, by multiple test equipments being respectively arranged on the test bracket 3 in the test point to be measured of relief model 1
Multiple connectors 31 on measure the wind speed of different height at test point to be measured, and wind direction is driven by wind-tunnel ground turntable 4
Angle regulating device adjusts the wind angle of relief model 1, so that the wind field characteristic at test point to be measured under difference wind angle is measured, from
And simulate the wind field distribution for obtaining entire landform.When wind angle of the wind angle regulating device in adjusting relief model 1, tester
The equal face wind-tunnel incoming flow of the probe of device is avoided without mounting and dismounting the test equipment on connector 31 repeatedly due to test
The error of instrument installation site and generate measurement error, improve the consistency of data.Optionally, test bracket 3 is more vertical
The frame structure connected and composed to bar and Duo Gen transverse bar.Multiple connectors 31 are set to longitudinal rod and/or transverse direction along short transverse
On bar.Optionally, test bracket 3 is single longitudinal rod, is equipped at the test point to be measured of ground model for installing test bracket 3
Fixed structure, multiple test brackets 3 are respectively arranged at different test points to be measured.Multiple connections on each test bracket 3
Part 31 is tested respectively with after the connection of multiple test equipments to obtain the wind field characteristic at corresponding test point to be measured, is obtained simultaneously
Obtain the wind field characteristic at different test points to be measured.Optionally, test bracket 3 is single longitudinal rod.The test to be measured of ground model
The fixed structure for installing test bracket 3 is equipped at point.By the way that test bracket 3 is installed on consolidating at the first test point to be measured
Determine to be tested in mechanism to obtain the wind field characteristic at the first test point to be measured, then by test bracket 3 from the first survey to be measured
Fixed mechanism at pilot is removed and is installed at the second test point to be measured and tested to obtain at the second test point to be measured
Wind field characteristic, to obtain the wind field characteristic at different test points to be measured.Optionally, it is set in the side wall surface of wind angle regulating device
There are multiple wind power generation plants the wind energy during the test of landform wind field is converted to electrical energy for storage, the electric energy of storage is used for
The drive energy that wind-tunnel ground turntable 4 rotates.
In the present embodiment, test bracket 3 is fixed on test room floor and is in the rotation center of wind angle regulating device
On line, and sequentially pass through positioned at laboratory wind-tunnel ground above the ground, wind-tunnel ground turntable 4, wind angle regulating device and
Relief model 1 extend out to 1 top of relief model；Connector 31 is laid on the sponson of test bracket 3；It is adjusted by mobile
Position of the relief model 1 in wind angle regulating device is so that the tested point of relief model 1 is in the rotation of wind angle regulating device
Turn on center line；Test equipment is fixed on test bracket 3 by connector 31, and face wind-tunnel comes the probe of test equipment always
The probe of stream and test equipment is fixed with wind-tunnel incoming flow relative position.Before test, multiple test equipments are installed on test bracket 3
The probe face wind-tunnel incoming flow of test equipment is gone up and makes, wind-tunnel ground turntable 4 drives wind angle regulating device around 3 turns of test bracket
When dynamic adjusting 1 wind angle of relief model, since the bottom of test bracket 3 is fixed on test room floor, it is installed on test
The position of test equipment on bracket 3 will not change, without reinstalling test equipment after adjusting wind angle every time so that test
The probe face direction of flow of instrument, so avoiding since the variation of test equipment installation site brings mistake to test result
Difference improves the consistency of data.
The test through-hole 11 for wearing test bracket 3 is equipped at the test point to be measured of relief model 1, wind angle adjusts dress
The model turntable 2 for being used to install relief model 1 including being installed on wind-tunnel ground turntable 4 is set, model turntable 2 is equipped with and ground
The opposite turntable through-hole 21 for being used to wear test bracket 3 of the test through-hole 11 of shape model 1, the overhanging end of test bracket 3 is successively
Turntable through-hole 21 below the central through hole 41 of wind-tunnel ground turntable 4, test point to be measured and the survey at test point to be measured
It pings hole 11 and multiple test equipments by being installed on multiple connectors 31 measures the wind speed of different height at test point；It is logical
It crosses wind-tunnel ground turntable 4 and rotates with movable model turntable 2 around test bracket 3 to obtain different height and different wind angles at test point
Under wind field characteristic.For the wind tunnel test of orographic winds field characteristic using actual landform as reference, the reaction according to the production of certain scaling factor is real
The relief model 1 of border features of terrain, radial dimension is for 5 meters -10 meters or longer, is turned by the way that relief model 1 is installed on model
Disk 2 compares and will be installed on wind-tunnel ground turntable 4, when adjusting the wind angle of relief model 1, by rotating wind-tunnel ground turntable 4
It is rotated with band movable model turntable 2, to make the relief model 1 on model turntable 2 be adjusted to different wind angles and be tested
To obtain the wind field characteristic at test point.When carrying out the test of orographic winds field characteristic, relief model 1 is installed on model turntable first
2 and make in test through-hole 11, turntable through-hole 21 and wind-tunnel ground turntable 4 on relief model 1 at first test point to be measured
Heart through-hole 41 communicates, so that the sponson for the test bracket being fixed on test room floor be passed through first on relief model 1
The central through hole 41 of test through-hole 11, turntable through-hole 21 and wind-tunnel ground turntable 4 at test point to be measured, by by tester
Device is installed on the sponson of test bracket to test the wind field characteristic of the first test point to be measured, tests the first test point to be measured
Wind field characteristic after, test bracket 3 is taken out from the test through-hole 11 from the first test point to be measured and adjusts model turntable 2 and is pacified
Loaded on the position on wind-tunnel ground turntable 4 so that test through-hole 11, turntable through-hole on relief model 1 at second test point to be measured
21 and the central through hole 41 of wind-tunnel ground turntable 4 communicate, so that the test bracket 3 that will be fixed on test room floor is overhanging
Partially pass through on relief model 1 test through-hole 11 at second test point to be measured, turntable through-hole 21 and wind-tunnel ground turntable 4
Central through hole 41 simultaneously obtains the wind field characteristic at the second test point to be measured by test, is sequentially completed the wind of all test points to be measured
Field characteristic test.
The radial dimension of model turntable 2 is greater than or equal to the radial dimension of relief model 1, and wind angle regulating device further includes
Sliding equipment 22 between 2 bottom surface of model turntable and wind-tunnel ground, slided on wind-tunnel ground by sliding equipment 22 with
Reduce resistance when wind-tunnel ground turntable 4 is rotated with movable model turntable 2 around test bracket 3.The radial dimension of model turntable 2 is greater than
Or the radial dimension equal to relief model 1.Relief model 1 is stably mounted on model turntable 2.In the present embodiment, landform
Model 1 is made of several model block assembly.Relief model 1 is constituted by assembly after making multiple model blocks, reduces landform
The manufacture difficulty of model 1, and it is convenient for the transport and storage of relief model 1.The radial dimension of model turntable 2 is greater than or equal to landform
The radial dimension of model 1, thus convenient for by several model blocks installation with model turntable 2 on to constitute relief model 1.Due to mould
Type turntable 2 is bigger relative to wind-tunnel ground 4 sizes of turntable, after model turntable 2 is installed on wind-tunnel ground turntable 4, model
Turntable 2 is influenced to sink beyond the part of wind-tunnel ground turntable 4 by self gravity, due in orographic winds field characteristic wind tunnel test
In for simulation actual landform, the mounting height of relief model 1 is lower, be accordingly used in installation relief model 1 model turntable 2 be easy
It sinks down on wind-tunnel ground and causes model turntable 2 that can not rotate, by being set to the sliding equipment 22 of 2 bottom surface of model turntable to mould
Type turntable 2 is supported, and wind-tunnel ground turntable 4 with movable model turntable 2 rotate when pulley wind-tunnel ground slide, to ensure mould
The rotation of type turntable 2 adjusts the wind angle of relief model 1.In the present embodiment, sliding equipment 22 is set on 2 bottom surface of model turntable
Pulley.Optionally, sliding equipment 22 is to match set on the sliding block of 2 bottom surface of model turntable and on wind-tunnel ground with sliding block
Sliding rail.Optionally, sliding equipment 22 be set on 2 bottom surface of model turntable sliding rail and be set to wind-tunnel ground on and wind-tunnel ground
The sliding block that turntable 4 matches.Optionally, it is equipped between two block models blocks for splicing fixed splicing body.Splicing body is to set
Raised line in a model block side wall surface and the groove set on alternate model block side wall surface.Optionally, splicing body be coated on
The adhesive of model block side wall surface.
Test bracket 3 includes the mounting seat for being fixed on test room floor, the support rod being fixed in mounting seat and branch
The reference test bar and the connector for connecting test instrument on reference test bar that strut cooperation socket forms Telescopic rod structure
31.Reference test bar along support rod move up and down after fix to adjust the height of reference test bar upper connector 31.And it is to be measured completing one
By moving down reference test bar from test through-hole 11, the turntable through-hole from completed test point to be measured after the test of test point
21 take out, by mobility model turntable 2 to change the position that model turntable 2 is installed on wind-tunnel ground turntable 4 after, by reference test bar
The test through-hole 11 from another test point to be measured is moved up to stretch out.Optionally, connector 31 is sheathed on test bracket 3
On.By by connector 31 along test bracket 3 move up and down after fix with the height of adjusting connector 31.It is built bridge according to quasi-
Height adjustment connector 31 height to test the wind speed of different height at same test point to be measured.
Model block is carved using rigid foam.The plasticity of rigid foam is good, is easy to carve production ground
Shape model 1, and it is light, it is easy to transport and be assembled into relief model 1.Optionally, model block is made by 3D printing.It is optional
Ground, relief model 1 are the overall model of 3D printing or engraving production.
Model block is carved using engraving machine layering.For complicated landform, especially complicated mountain relief, by adopting
Contour is formed with engraving machine layering engraving, the production precision of relief model 1 is improved, improves relief model 1 and required mould
The similitude of quasi- actual landform, therefore improve the accuracy of orographic winds field characteristic results of wind tunnel.
Model block is by being coated on the cured coating of model block outer surface to enhance the hardness of model block.Model block not vulnerable to
Damage.
In another embodiment, test bracket 3 is fixed in the test point to be measured of relief model 1, and test equipment passes through company
Fitting 31 is rotationally connected on test bracket 3, and test equipment and the composition wind vane structure of connector 31 and test equipment are located at wind
To the mark lesser head of structure wind area, when wind angle regulating device adjusts the wind angle of relief model 1, wind vane structure is certainly
It is dynamic to be adjusted the probe face wind-tunnel incoming flow so that test equipment.It is lesser that test equipment is located at wind vane structure wind area
Head, and the tail portion wind area of wind vane structure is big, therefore adjusts the wind angle of relief model 1 in wind angle regulating device
Afterwards, the position of test bracket 3 test equipment for making to be installed on test bracket 3 that changes does not have a face wind-tunnel incoming flow, but by
Constitute wind vane structure in test equipment and connector 31, thus can adjust automatically immediately, the tail portion wind surface of wind vane structure
Product is blown to far from wind-tunnel incoming flow and head then face wind-tunnel incoming flow by air-flow greatly.It is carried out simultaneously by multiple test brackets 3 multiple
The wind field attribute testing of test point to be measured, operate it is simpler, improve work efficiency, and same wind regime simultaneously act on it is multiple
Test point to be measured reduces error caused by frequent switching test point to be measured and restarting wind regime, improves the standard of data
True property and consistency.
A kind of orographic winds field characteristic wind tunnel test methods of the present embodiment, for obtaining the quasi- wind field for building position of bridge
Characteristic actually builds position with determine bridge, using above-mentioned orographic winds field characteristic wind tunnel test test macro, including following step
It is rapid: position production relief model 1 and determining test point to be measured are built according to the actual landform in bridge site area and the quasi- of bridge；By ground
Shape model 1 is installed in wind angle regulating device and wind angle regulating device is installed on wind-tunnel ground turntable 4；By test branch
Frame 3 is installed at the test point to be measured of relief model 1 and is installed multiple testers according to the height and position of the quasi- bridge built
In on the connector 31 of different height on test bracket 3, by adjust wind direction angle apparatus adjustably shape model 1 to different to be measured
It is tested under wind angle, and multiple test equipments by being installed on test bracket 3 measure survey to be measured under same wind angle
The wind speed of different height at pilot, to measure at the difference test points to be measured of relief model 1 different height under difference wind angle
Wind speed, to obtain the quasi- wind field characteristic for building position of bridge；If the wind field characteristic at test point to be measured does not meet bridge
Wind force proofing design requirement, then build position until the quasi- of bridge is taken to change the quasi- of bridge by changing the position of test point to be measured
The wind field characteristic for building position meets the wind force proofing design requirement of bridge, so that it is determined that bridge actually builds position.Optionally, on ground
Bridge quasi- build on shape model 1 sets at the position to collapse with a quarter of moving towards to collapse in bridge at position along building for bridge
Set test point to be measured.Collapse in bridge with a quarter across position at by high wind pressure risk highest, therefore be set to bridge
In the landform wind field at the test point to be measured to collapse at position with a quarter that collapses meet the wind force proofing design requirement of bridge, then bridge
Landform wind field at other positions also complies with the wind force proofing design requirement of bridge.
The invention belongs to national natural science fund subsidy projects (51508580, U1534206) and state key research and development meter
Draw one of (2017YFB1201204) content.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of orographic winds field characteristic wind tunnel test test macro, for obtaining the wind field characteristic and distribution situation of complicated landform,
It is characterized in that,
Including for simulating actual landform relief model (1), be installed on wind-tunnel ground turntable (4) for installing describedly
Shape model (1) simultaneously adjusts the wind angle regulating device of the relief model (1) wind angle and the survey for installing test equipment
It tries bracket (3),
The test bracket (3) is in the test point to be measured of the relief model (1), along height on the test bracket (3)
Direction is equipped with multiple connectors (31) for being used to install test equipment, by being respectively arranged on multiple connectors (31)
Test equipment measures the wind speed of different height at test point, the probe face wind-tunnel incoming flow of test equipment.
2. landform wind-tunnel characteristic wind tunnel test test macro according to claim 1, which is characterized in that
The test bracket (3) is fixed on test room floor and is on the rotation centerline of the wind angle regulating device, institute
Test bracket (3) is stated to sequentially pass through positioned at laboratory wind-tunnel ground above the ground, wind-tunnel ground turntable, the wind
To angle regulating device and the relief model (1) and it extend out to above the relief model (1)；
The connector (31) is laid on the sponson of the test bracket (3)；The relief model is adjusted by mobile
(1) position in the wind angle regulating device is so that the test point to be measured of the relief model (1) is in the wind angle
On the rotation centerline of regulating device；
Test equipment is fixed on the test bracket (3) by the connector (31), and makes the probe face of test equipment
The probe of wind-tunnel incoming flow and test equipment is fixed with wind-tunnel incoming flow relative position.
3. orographic winds field characteristic wind tunnel test test macro according to claim 2, which is characterized in that
The test through-hole (11) for wearing the test bracket (3) is equipped at the test point to be measured of the relief model (1),
The wind angle regulating device includes being installed on wind-tunnel ground turntable (4) to be used to install the relief model
(1) model turntable (2), the model turntable (2) are equipped with opposite with the test through-hole (11) of the relief model (1)
For wearing the turntable through-hole (21) of the test bracket (3),
The overhanging end of the test bracket (3) sequentially passes through the central through hole (41), described to be measured of wind-tunnel ground turntable (4)
The test through-hole (11) at turntable through-hole (21) and the test point to be measured below test point and by being installed on multiple institutes
State the wind speed that multiple test equipments on connector (31) measure different height at test point；
The model turntable (2) is driven to rotate around the test bracket (3) to obtain test by wind-tunnel ground turntable (4)
Wind field characteristic at point under different height and different wind angles.
4. orographic winds field characteristic wind tunnel test test macro according to claim 3, which is characterized in that
The radial dimension of the model turntable (2) is greater than or equal to the radial dimension of the relief model (1),
The wind angle regulating device further includes set on the sliding equipment between the model turntable (2) and the wind-tunnel ground
(22), it is slided on wind-tunnel ground by the sliding equipment (22) to reduce wind-tunnel ground turntable (4) and drive the mould
Resistance when type turntable (2) is rotated around the test bracket (3).
5. orographic winds field characteristic wind tunnel test test macro according to claim 2, which is characterized in that
The test bracket (3) includes the mounting seat for being fixed on test room floor, the support being fixed in the mounting seat
Bar and the reference test bar that Telescopic rod structure is formed with support rod cooperation socket, the connector (31) are set to the reference test bar
On.
6. landform wind-tunnel characteristic wind tunnel test test macro according to claim 1, which is characterized in that
The test bracket (3) is fixed in the test point to be measured of the relief model (1), and test equipment passes through the connector
(31) it is rotationally connected on the test bracket (3), test equipment and the connector (31) constitute wind vane structure and test
Instrument is located at the lesser head of wind vane structure wind area,
When the wind angle regulating device adjusts the wind angle of the relief model (1), the wind vane structure is adjusted automatically
It is whole so that test equipment probe face wind-tunnel incoming flow.
7. orographic winds field characteristic wind tunnel test test macro according to claim 1, which is characterized in that
The relief model (1) is made of several model block assembly.
8. orographic winds field characteristic wind tunnel test test macro according to claim 7, which is characterized in that
The model block is carved using rigid foam.
9. orographic winds field characteristic wind tunnel test test macro according to claim 7, which is characterized in that
The model block is by being coated on the cured coating of the model block outer surface to enhance the hardness of the model block.
10. a kind of orographic winds field characteristic wind tunnel test methods, for obtaining the quasi- wind field characteristic for building position of bridge with determination
Bridge actually builds position, which is characterized in that is surveyed using any orographic winds field characteristic wind tunnel test of claim 1-8
Test system, comprising the following steps:
Position production relief model (1) and determining test point to be measured are built according to the actual landform in bridge site area and the quasi- of bridge；
Relief model (1) is installed in wind angle regulating device and wind angle regulating device is installed on wind-tunnel ground turntable
(4) on；
Test bracket (3) is installed at the test point to be measured of relief model (1) and according to the height and position of the quasi- bridge built
Multiple testers are installed on test bracket on the connector of different height, by adjusting wind direction angle apparatus adjustably shape model
(1) to being tested under different wind angles to be measured, and multiple test equipments by being installed on test bracket measure it is same
Under wind angle at test point to be measured different height wind speed, to measure different at the difference test points to be measured of relief model (1)
The wind speed of different height under wind angle, to obtain the quasi- wind field characteristic for building position of bridge；
If the wind field characteristic at test point to be measured does not meet the wind force proofing design requirement of bridge, by the position for changing test point to be measured
It sets to change the quasi- wind force proofing design requirement for building position until the quasi- wind field characteristic for building position of bridge meets bridge of bridge,
So that it is determined that bridge actually builds position.
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