CN202614780U - High-accuracy wind speed testing support - Google Patents
High-accuracy wind speed testing support Download PDFInfo
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- CN202614780U CN202614780U CN 201220252874 CN201220252874U CN202614780U CN 202614780 U CN202614780 U CN 202614780U CN 201220252874 CN201220252874 CN 201220252874 CN 201220252874 U CN201220252874 U CN 201220252874U CN 202614780 U CN202614780 U CN 202614780U
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Abstract
The utility model discloses a high-accuracy wind speed testing support including a support part and a vibration testing part. The support part includes a horizontally arranged horizontal main rod (1), a vertical main rod (2), a horizontal left pull rod (3), a horizontal right pull rod (4), a vertical support rod (5), a vertical pull rod (6), a lighting device (8), a three-direction accelerometers (9), the vibration testing part includes the three-direction accelerometers (9) and a horizontal steel plate (7), wherein the left end of the horizontal main rod (1) is fixed on the surface of a structure to be detected, and the right end of the horizontal main rod (1) protrudes out of the surface of the structure to be detected, the lower end of the vertical main rod (2) is vertically fixed at the right end of the horizontal main rod (1), the upper end of the vertical main rod (2) is used for a wind-velocity indicator to be arranged, and the vertical main rod (2) and the horizontal main rod (1) are in the same vertical plane. The testing support is convenient in carrying, rejects the interference of the self-vibration of the wind-velocity indicator, is high in testing accuracy, and can more reasonably meet the needs of the testing of the wind environment of the structure.
Description
Technical field
The utility model relates to a kind of high precision wind speed test bracket; Be particularly useful for when the residing wind environment of heavy construction structure is tested; Play at selected test position all kinds of anemoscopes are fixed the effect of rejecting the structural vibration interference simultaneously, be mainly used in civil structure Wind Engineering field.
Background technology
Disaster caused by a windstorm is one of main disasters kind of disaster, and is huge by its casualties that causes and economic loss.In recent years; China southeastern coastal areas have been built up in succession a collection ofly has that world's influence power is striden greatly, tall and slender structure, and for example: the world's the 1st large span stayed-cable bridge---bridge, the world's the 3rd large-span suspension bridge are led in the Soviet Union that main span is 1088 meters---profit that main span is 1490 meters is raised bridge, Oriental Pearl's tower, Shanghai World Financial Center etc.Along with the continuous increase of structural span with height, the structure trend is flexible, to the susceptibility increasing of wind; And these structures are in the multiple district of typhoon, even the positive situation about attacking of typhoon might occur suffering, make wind load become the major control load of structural design usually.China also quite lacks for the field data of different builder's yard wind field characteristics at present, and the wind load value of structural design does not have enough measured data supports yet.Therefore, it is great to carry out the wind characteristic actual measurement work meaning of different regions.
Existing wind characteristic data owner will come from each weather station, and there are shortcomings such as SF is low, low precision, data deficiency continuity, acquisition station rareness in these data.Moreover since wind characteristic influenced by topography and geomorphology, architectural environment etc. bigger, the wind characteristic of different regions differs greatly, therefore the test result in an area can not well be applicable to other area.In order to understand the wind field characteristic of builder's yard, anemoscope often need be installed carry out field measurement.In the process of actual measurement, need manage anemoscope is fixed on the air position of distance structure thing surface certain distance at the scene, the influence of air flow process obtained as far as possible wind characteristic data accurately to reduce buildings.This just needs suitable fixed support, and the one of which end is anemoscope fixedly, and the other end is fixed on the works surface.In practical application; Because the support that most of works surface does not supply anemoscope to install; Can only make simple a support perhaps at the scene temporarily and directly anemoscope fixed structurally, so not only cause the inaccurate of test structure, returning test job has increased difficulty.Therefore, be badly in need of a kind of anemoscope support that can let the tester carry and have advantages such as good stability, attaching/detaching is simple, accommodative ability of environment is strong.For this reason, Southeast China University has applied for national inventing patent---(the license number: ZL200810196374.X, inventor: Wang Hao of a kind of anemoscope support; Li Aiqun; Wang Chen, Xie Jing), this patent has been surveyed in the wind at the scene that profit is raised bridge, the logical bridge of Soviet Union etc. and has been used.
Yet structure can be vibrated under wind action, and the anemoscope that is fixed in the works surface also can constantly vibrate, and this vibration obviously can impact test, makes the test data of anemoscope have certain deviation undoubtedly.Use inaccurate wind characteristic data will make the structure charming appearance and behaviour response of calculating have error, also possibly cause structural collapse under the extreme case, cause the loss that to retrieve.Therefore, it is most important for the rational structure wind force proofing design to design a kind of high precision wind speed test bracket.Yet only be through the anemoscope support anemoscope to be fixed in body structure surface to carry out the wind characteristic test at present, can't remove the influence of vibration interference at all test result.
Structural vibration obtains the theoretical analysis model of anemoscope tests affect is not so difficult.Two groups of wind-tunnel contrast tests that have definite wind load input through design can obtain.Wherein one group is that anemoscope is fixed, and another group anemoscope has fixing acceleration input.Through the contrast of two groups of results of wind tunnel, can obtain to vibrate theoretical model research, and set up the effective solution of vibration in view of the above the influence of wind characteristic test result to the influence of wind characteristic test result.
The needs of and test data correction fixing for the anemoscope that satisfies the wind characteristic field measurement; Select for use the high-strength light stainless steel material to make the anemoscope support; And vibration testing instrument is installed on support, utilizing the vibration-testing result that the anemoscope image data is revised is one of effective way.Horizon bar at existing anemoscope support is installed the high-precision three-dimensional vibration transducer near the works surface location.When measuring wind characteristic also the measurement structure thing in the vibration of anemoscope fixed position.Utilize vibration data that the collection result of anemoscope is revised, thereby reject because the error of the wind characteristic test data that structural vibration causes improves the wind characteristic precision of test result greatly.The horizon bar of anemoscope support, support and vertical bar all can carry out length adjustment according to field condition, and each parts are installation and removal easily all, make the anemoscope support carry and convenience.In addition, can light fixture be installed to satisfy the needs of test at night in the bottom of montant.
Summary of the invention
Technical matters:The utility model technical matters to be solved provides a kind of high precision wind speed test bracket of eliminating structural vibration; Not only can satisfy different engineering structures and different tests position measurement requirement to wind characteristic, can be reliably, stably anemoscope is fixed in the works surface; Can also measure simultaneously the structural vibration at position, anemoscope place, and utilize vibration data that the wind characteristic test result is revised to improve measuring accuracy.
Technical scheme:For solving the problems of the technologies described above; The utility model provides a kind of high precision wind speed test bracket; Comprise holder part and vibration-testing part, said holder part comprises the horizontal mobile jib of horizontal positioned, vertical mobile jib, horizontal left lever, the right pull bar of level, vertical strut, vertical pull bar, light fixture and three-dimensional acceleration transducer; Said vibration-testing partly comprises three-dimensional acceleration transducer and two parts of horizontal steel plate, wherein,
Horizontal mobile jib left end is fixed in tested works surface, and right-hand member protrudes from tested works surface;
Vertically the lower end vertical fixing of mobile jib is in horizontal mobile jib right-hand member, and vertically the mobile jib upper end is used to install anemoscope, and vertically mobile jib and horizontal mobile jib are in the same perpendicular;
One end of the right pull bar of horizontal left lever and level is individually fixed in horizontal mobile jib right-hand member, and the other end of the right pull bar of horizontal left lever and level is individually fixed in tested works surface, and horizontal left lever, the right pull bar of level and horizontal mobile jib are in the same surface level;
Vertically strut is individually fixed in horizontal mobile jib right-hand member with an end of vertical pull bar; Vertically the other end of strut and vertical pull bar is individually fixed in tested works surface; And vertically strut, vertical pull bar, horizontal mobile jib are in the same perpendicular with vertical mobile jib, and vertically the mobile jib upper end is used to install anemoscope;
Horizontal steel plate is welded in horizontal mobile jib upper surface near the left end position;
The three-dimensional acceleration transducer is fixed in horizontal steel plate upper surface; Horizontal mobile jib left end downside is installed light fixture.
Preferably, the area of horizontal steel plate is identical with the base area of speed pickup.
Beneficial effect:Through integrated design to wind speed test bracket and vibration-testing part; Make this high precision wind speed test bracket not only can satisfy the installation requirement of different test environments to anemoscope; But have good stability, can throw light on, scalable attaching/detaching, function such as portable and anticorrosion, can adapt to all kinds of field test work better; Vibration-testing data also capable of using are simultaneously revised the test result of anemoscope, improve the wind characteristic measuring accuracy.Obviously; This anemoscope support provides many facilities for vast Wind Engineering testing research personnel; Along with domestic and international increase and Structural Wind Engineering research to wind characteristic field measurement attention degree develops towards the direction that becomes more meticulous; This high precision wind speed test bracket must receive engineering technical personnel's favor, therefore has future in engineering applications widely.
Description of drawings
Fig. 1 is the vertical view after the wind speed test bracket of the utility model is installed;
Fig. 2 is the right view after the wind speed test bracket of the utility model is installed;
Fig. 3 is the front view after the wind speed test bracket of the utility model is installed;
Fig. 4 is the 3 dimensional drawing of horizontal mobile jib in the utility model;
Fig. 5 is the 3 dimensional drawing of vertical mobile jib in the utility model;
Fig. 6 is the 3 dimensional drawing of the right pull bar of horizontal left lever in the utility model, level, vertical strut and vertical pull bar;
Each Reference numeral is among the figure: horizontal mobile jib 1; Vertical mobile jib 2; Horizontal left lever 3; The right pull bar 4 of level; Vertical strut 5; Vertical pull bar 6; Horizontal steel plate 7; Light fixture 8, high precision three-dimensional acceleration transducer 9.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Like Fig. 1～shown in Figure 6, the wind speed test bracket of the utility model comprises horizontal mobile jib 1; Vertical mobile jib 2; Horizontal left lever 3; The right pull bar 4 of level; Vertical strut 5; Vertical pull bar 6; Horizontal steel plate 7; Light fixture 8, high precision three-dimensional acceleration transducer 9.
Horizontal mobile jib 1 horizontal positioned, left end are fixed in tested works surface, and right-hand member protrudes from tested works surface; Vertically mobile jib 2 lower end vertical fixing are in horizontal mobile jib right-hand member 3, and various types of high precision anemoscopes can be installed in the upper end, and are in the same perpendicular with horizontal mobile jib 1; The right-hand member of horizontal left lever 3 and the right pull bar 4 of level is individually fixed in the and arranged on left and right sides of horizontal mobile jib 1 right-hand member, and left end is fixed in tested works surface, and is in the same surface level with horizontal mobile jib 1; Vertically the right-hand member of strut 5 and vertical pull bar 6 is individually fixed in the upper and lower both sides of horizontal mobile jib 1 right-hand member, and left end is fixed in tested works surface, and is in the same perpendicular with horizontal mobile jib 1; Horizontal steel plate 7 is welded in horizontal mobile jib 1 upper surface near the left end position.
Horizontal mobile jib 1, horizontal left lever 3, the right pull bar 4 of level, vertically strut 5 and vertical 5 kinds of length of pull bar 6 equal scalable, as shown in Figure 4; Vertically mobile jib 2 can be regulated 2 kinds of length, and is as shown in Figure 5; The left and right strut of level can also be regulated 5 kinds of length with vertical upper connecting rod, and is as shown in Figure 6.All rod members of high precision wind speed test bracket are telescopic structure, are connected through removably between rod member and the rod member.In high precision wind speed test bracket time spent not, each rod member of support is taken apart each other, and each root rod member is contracted to the shortest, to be convenient for carrying.When high precision wind speed test bracket uses; At first according to the situation of the building surface of test position; Regulate horizontal mobile jib 1, vertically mobile jib 2, horizontal left lever 3, the right pull bar 4 of level, the vertically strut 5 and the vertical length of pull bar 6 in advance; Make that support is installed on its horizontal mobile jib 1 level behind the body structure surface, vertically mobile jib 2 is vertical, and it is far away as far as possible to make vertical mobile jib 2 leave building surface; Secondly vertical mobile jib 2 is fixed in horizontal mobile jib 1 right-hand member; With horizontal left lever 3, the right pull bar 4 of level, vertically strut 5 and vertically the right-hand member of pull bar 6 be fixed in horizontal mobile jib 1 right-hand member, with horizontal mobile jib 1, horizontal left lever 3, the right pull bar 4 of level, vertically strut 5 and vertically the left end of pull bar 6 be fixed in works to be measured surface; At last vibration-testing part 9 is fixed in horizontal steel plate 7 upper surfaces, the installation of anemoscope support.In the process of carrying out the wind characteristic test, utilize high precision three-dimensional acceleration transducer 9 to gather acceleration information simultaneously, so that the anemoscope test data is revised.Carry out wind characteristic when test at night, light fixture 8 is fixed in the lower end of vertical mobile jib 2, reach effect anemoscope and tester's illumination.
Do further detailed explanation in the face of the principle of work of the utility model down:
This support can be regulated the length of rod member, and 5 kinds of length of horizontal mobile jib are respectively 1a, 2a, 3a, 4a, 5a, and (wherein a is a constant, is unit with m, down together), wherein the wall thickness of every section rod member is 0.5cm, and maximum outside diameter is 12cm; Vertically the adjustable two kinds of length of mobile jib are respectively 3a and 6a, and wherein the wall thickness of every section rod member is 1cm, and maximum outside diameter is 12cm; The left and right strut of level is respectively 1.5a, 3a, 4.5a, 6a, 7.5a with the vertical adjustable 5 kinds of length of upper connecting rod, and wherein the wall thickness of every section rod member is 0.5cm, and maximum outside diameter is 12cm.
Need confirm at first before the installation horizontal mobile jib and 4 vaulting poles are fixed on by which position of geodesic structure, to confirm the length of horizontal mobile jib, triatic stay, vertical support (drawing) bar.The length that it is noted that triatic stay, vertical support (drawing) bar simultaneously is one to one.For example, horizontal mobile jib is got length when being 1a, and corresponding triatic stay is 1.5a with the vertical length of upper connecting rod, by that analogy.
The vibration signal that said high precision three-dimensional acceleration transducer 9 records must be used the theoretical analysis model of wind characteristic test result influence in the integrated structure vibration.At first measure the vibration of anemoscope self, according to theoretical analysis model the influence of vibration is rejected again by acceleration transducer 9.Structural vibration is following to the theoretical analysis model of wind characteristic test result influence: the wind speed of establishing test does
V, the acceleration of test does
A, revised wind speed does
W, following formula then capable of using is revised test result:
In the formula,
is the coefficient through measuring.Wherein utilize anemoscope test wind characteristic parameter, comprise wind speed and direction; Utilize the vibration acceleration of high precision three-dimensional acceleration transducer 9 test anemoscope point of fixity simultaneously.
The above is merely the preferred embodiments of the utility model; The protection domain of the utility model does not exceed with above-mentioned embodiment; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (2)
1. high precision wind speed test bracket; Comprise holder part and vibration-testing part, it is characterized in that: said holder part comprises the horizontal mobile jib (1) of horizontal positioned, vertical mobile jib (2), horizontal left lever (3), the right pull bar (4) of level, vertical strut (5), vertical pull bar (6), light fixture (8) and three-dimensional acceleration transducer (9); Said vibration-testing partly comprises three-dimensional acceleration transducer (9) and (7) two parts of horizontal steel plate, wherein,
Horizontal mobile jib (1) left end is fixed in tested works surface, and right-hand member protrudes from tested works surface;
Vertically the lower end vertical fixing of mobile jib (2) is in horizontal mobile jib (1) right-hand member, and vertically mobile jib (2) upper end is used to install anemoscope, and vertically mobile jib (2) is in the same perpendicular with horizontal mobile jib (1);
One end of the right pull bar of horizontal left lever (3) and level (4) is individually fixed in horizontal mobile jib (1) right-hand member; The other end of the right pull bar of horizontal left lever (3) and level (4) is individually fixed in tested works surface, and horizontal left lever (3), the right pull bar of level (4) and horizontal mobile jib (1) are in the same surface level;
Vertically an end of strut (5) and vertical pull bar (6) is individually fixed in horizontal mobile jib (1) right-hand member; Vertically the other end of strut (5) and vertical pull bar (6) is individually fixed in tested works surface; And vertically strut (5), vertical pull bar (6), horizontal mobile jib (1) are in the same perpendicular with vertical mobile jib (2), and vertically mobile jib (2) upper end is used to install anemoscope;
Horizontal steel plate (7) is welded in horizontal mobile jib (1) upper surface near the left end position;
Three-dimensional acceleration transducer (9) is fixed in horizontal steel plate (7) upper surface; Horizontal mobile jib (1) left end downside is installed light fixture (8).
2. wind speed test bracket according to claim 1 is characterized in that: the area of horizontal steel plate (7) is identical with the base area of speed pickup (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252874 CN202614780U (en) | 2012-05-31 | 2012-05-31 | High-accuracy wind speed testing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252874 CN202614780U (en) | 2012-05-31 | 2012-05-31 | High-accuracy wind speed testing support |
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| Publication Number | Publication Date |
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| CN202614780U true CN202614780U (en) | 2012-12-19 |
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| CN 201220252874 Withdrawn - After Issue CN202614780U (en) | 2012-05-31 | 2012-05-31 | High-accuracy wind speed testing support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662071A (en) * | 2012-05-31 | 2012-09-12 | 东南大学 | High-precision wind speed testing support |
| CN106840504A (en) * | 2017-01-17 | 2017-06-13 | 青海大学 | Small-sized field anemometry experimental rig and method |
-
2012
- 2012-05-31 CN CN 201220252874 patent/CN202614780U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662071A (en) * | 2012-05-31 | 2012-09-12 | 东南大学 | High-precision wind speed testing support |
| CN102662071B (en) * | 2012-05-31 | 2014-01-08 | 东南大学 | High-precision wind speed testing support |
| CN106840504A (en) * | 2017-01-17 | 2017-06-13 | 青海大学 | Small-sized field anemometry experimental rig and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20140108 |
|
| RGAV | Abandon patent right to avoid regrant |