CN106679798A - Heterosphere vibrating multi-point synchronization testing method of towering type building structure - Google Patents
Heterosphere vibrating multi-point synchronization testing method of towering type building structure Download PDFInfo
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- CN106679798A CN106679798A CN201611159184.1A CN201611159184A CN106679798A CN 106679798 A CN106679798 A CN 106679798A CN 201611159184 A CN201611159184 A CN 201611159184A CN 106679798 A CN106679798 A CN 106679798A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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Abstract
The invention discloses a heterosphere vibrating multi-point synchronization testing method of a towering type building structure; the method includes steps of (1), layout of testing points: confirming multiple key layers required to perform vibration test through analyzing characteristics of the towering type building structure, and arranging testing points in every key layer; (2), grouping of testing points: grouping the testing points according to the grouping method of overlapped testing points, wherein the grouping method of overlapped testing points is that every group contains equal number of testing points, and adjacent groups have at least one overlapping testing point; (4), vibration test: performing vibration test on every group, and acquiring the testing data; (5), data analysis: analyzing the vibration testing data, comparing the vibration parameters of the overlapped testing points tested by two times, and confirming the validity of the testing data. Based on the method of performing vibration testing by grouping, at least one overlapped testing point is distributed to adjacent groups, and judgment and calibration are carried out through the vibration parameter of the overlapped testing points, thereby effectively guaranteeing the effectiveness of the testing data.
Description
Technical field
The present invention relates to building construction vibration technical field of measurement and test, is specifically related to a kind of different layer of dominant type building structure and shakes
Dynamic Multipoint synchronous method of testing.
Background technology
At present, for the vibration-testing of dominant type building structure, mainly there are two kinds of technological means：
First, it is, by extensive vibration-testing apparatus, to carry out blanket type, all standing test, but this kind of test mode
Can there is following limitation：
(1) extensive vibration-testing apparatus are used simultaneously when, it is desirable to the stringent synchronization over time and space such as sensor, but
Long-time cooperation, can cause instrumental error (such as GPS error), it is difficult to realize synchronism detection truly, test
Asynchronous can cause to test the data for obtaining inaccurate；(2) transmission of tall and slender structure different layers vibration cannot be accurately reflected
Characteristic；(3) extensive harvester is used simultaneously, power when needing long, it is long when collection, it is long when energy supply, while also can band
Carry out higher Financial cost；(4) in actual tall and slender structure vibration-testing, due to vibration-testing harvester (such as sensor)
Quantity and power of test are limited, and measuring point quantity is more, coverage is wider, difficult to realize that all measuring points are carried out to survey simultaneously
Amount.
Second, it is under limited vibration-testing apparatus, to carry out packet test.Tall and slender structure is tested by packet mode
Vibratory response, although the quantity and power of test for solving the problems, such as vibration-testing harvester (such as sensor) is limited, but still
Can so there are some defects：(1) due to by instrument collection, analysis deviation, the shadow such as sensor damage or external environment disturbance
Ring, error can be produced in successively test process, constantly accumulation gradually increases error, can have a strong impact on the accurate of test data
Property, or even mistake；(2) due to the limitation and deficiency in successively test process, can cause to analyze the biography of tall and slender structure vibration
Pass characteristic to be forbidden, lose the meaning of tall and slender structure vibration-testing.
The content of the invention
In order to solve problem above, the present invention provides technical scheme below：
A kind of different layer of dominant type building structure vibrates Multipoint synchronous method of testing, comprises the steps：
(1) measuring point is laid：By to dominant type building structure feature analysiss, it is determined that needing the multiple passes for carrying out vibration-testing
Key layer, in each key stratum measuring point is laid；
(2) measuring point packet：The measuring point is grouped by measuring point packet mode is overlapped, it is equal comprising quantity in each group
Measuring point, and adjacent group has at least one to overlap measuring point；
(4) vibration-testing：Vibration-testing is carried out to each group, test data is obtained；
(5) data analysiss：Flutter test data is analyzed, contrast overlaps the vibration ginseng measured twice before and after measuring point
Number, wherein, then it is efficiency test data when in front and back two-time vibration parameter error is less than certain value.
Further, the quantity of the measuring point in each group is two or three or four；The quantity for overlapping measuring point is one
It is individual or two or three.
Further, the vibration parameters include：Amplitude, remarkable mid-band frequency and power spectral density.
Further, when twice the amplitude error is less than 5% before and after overlap measuring point, the remarkable mid-band frequency is missed
Then it is efficiency test data when the power spectral density squared difference and error are less than 10% when difference is less than 5%.
Beneficial effect：(1) present invention carries out the mode of vibration-testing based on packet, and at least one weight is distributed in adjacent sets
Folded measuring point, and passed judgment on, calibrated by overlapping the vibration parameters of measuring point, effectively test data effectiveness can be protected
Barrier, with strict control hierarchy error in data in precision allowed band, the final accuracy for ensureing tall and slender structure integrated testability；
(2) using limited sensing device, it is effectively realized " synchronization " to all measuring points of dominant type building structure and measures, reaches " synchronization "
Effect；(3) extensive vibration acquisition device is avoided while using, significantly reduce Financial cost；(4) adopted using layered vibration
Integrated mode, efficiency high, time-consuming short, harvester working loss is little, and supporting energy supply is relatively low, it is to avoid power when long,
When long collection, it is long when energy supply.
Description of the drawings
Fig. 1 is the flow chart that the different layer of dominant type building structure of the present invention vibrates Multipoint synchronous method of testing；
The first embodiment of big across the type building structure Multipoint synchronous method for testing vibration that Fig. 2 is provided for the present invention；
The second embodiment of big across the type building structure Multipoint synchronous method for testing vibration that Fig. 3 is provided for the present invention.
Specific embodiment
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following examples.
As shown in figure 1, the invention provides a kind of different layer of dominant type building structure vibrates Multipoint synchronous method of testing, including
Following steps：
(1) measuring point is laid：By to dominant type building structure feature analysiss, it is determined that needing the multiple passes for carrying out vibration-testing
Key layer, in each key stratum measuring point is laid；
Building is relevant to factors such as the response and the fabric structures that vibrate, the arrangement of measuring point be considered as fabric structure because
Element.One building structure, what position picking up its vibration signal from can just obtain expected effect, and this is one very heavy
The problem wanted.The pickup of vibration signal will lean on sensor to layout to realize, therefore transducer arrangements are at what position, are exactly one
Individual crucial work.
When a building is carried out vibration-testing research, generally require to arrange multiple measuring points, in general measuring point is healed
It is many, more can learn more about structure vibration when stress, strain and its deformation condition.But measuring point is the more, required instrument
Also the more, workload is also bigger for equipment.Accordingly, it would be desirable to reasonable Arrangement measuring point, arrangement is optimized to measuring point, i.e., with as far as possible few
Measuring point, obtains than more complete, rational test data in the case where experiment work amount is little.
When carrying out measuring point optimization and laying, carry out the feature analysiss of building structure first, understand Architectural Structure Design feature and
Its structural system, for example, can analyze the construction featuress such as build, key position, the height of building structure.The test side of the present invention
Method it is targeted be dominant type building structure, dominant type building structure refers to relatively small elongated in highly larger, transverse section
Type structure, the Main Basiss with horizontal loading as structure design.Dominant type needs the vibration of the building of the different numbers of plies of observation to ring
Should, understand each layer vibration distribution situation of building.Can be according to existing for those skilled in the art the characteristics of dominant type building structure
There are the method and existing empirically determined possible vibration state of technology, by the substantially vertical property Ground Split of dominant type building structure into many
Individual key stratum, then lays measuring point in each key stratum, and each measuring point presents mo(u)ld bottom half distribution substantially.
(2) measuring point packet：The measuring point is grouped by measuring point packet mode is overlapped, the overlap measuring point packet mode
To include the equal measuring point of quantity in each group, and adjacent group has at least one to overlap measuring point；
Because tested dominant type building structure height is higher, the number of sensors needed during measurement is more, adopts in the present invention
Vibration-testing is carried out with the mode of packet, the multiple measuring points determined in step (1) are divided into into multigroup, equal amount is included in each group
Measuring point, and adjacent group have at least one overlap measuring point, wherein, carrying out vibration survey for a dominant type building structure
During examination, difference group overlaps measuring point number and can differ.
Further, for example can overlap a bit for 2 points as shown in Fig. 2 overlapping measuring point packet mode, i.e., per group in wrap
Containing two measuring points, and comprising the measuring point of an overlap in adjacent group, as shown in figure 3, the overlap measuring point packet mode is three
Point overlaps at 2 points, i.e., per group in comprising in three measuring points, and adjacent group comprising the measuring points of two overlaps, it is possible to understand that ground, institute
State overlap measuring point packet mode for example can also for 3 points overlap a bit, 4 points overlap 2 points etc., principle is more Chong Die with 2 points,
3 points of 2 points of overlaps are identical, and those of ordinary skill in the art can carry out according to actual needs selecting to overlap measuring point packet mode.
(4) vibration-testing：Vibration-testing is carried out to each group, test data is obtained；
Those of ordinary skill in the art can for example be referred to according to engineering test contract and effectively according to prior art
Technical regulation (specification) etc., vibration-testing is carried out to each group, in selected key stratum arrangement vibration-testing sensor, test is high
The Environmental Random Vibration of towering type building structure.
(5) data analysiss：Flutter test data is analyzed, contrast overlaps the vibration parameters measured twice before and after measuring point
And for the evaluation of test data effectiveness, wherein, then it is efficiency test when in front and back two-time vibration parameter error is less than certain value
Data.
Further, the vibration parameters include：Amplitude, remarkable mid-band frequency and power spectral density；Ensure to overlap
Two-time vibration test before and after measuring point has with width, with frequency and equivalent.
Specifically, the amplitude error is less than 5%, and the remarkable mid-band frequency error is less than 5%, the power spectrum
Then it is efficiency test data when density difference error of sum square is less than 10%.
Pass judgment on and calibrate based on the overlap measuring point in the test of different layers packet synchronization, by the way that setting is strict, science, efficient
Criterion is passed judgment on, to ensure the accuracy of zonal testing result, and successively management and control, until test is completed.Then each group vibration is surveyed
The efficiency test combined analysis that examination is obtained, obtain the vibration characteristics of dominant type building structure.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the device and its core concept that understand the present invention；Simultaneously for one of ordinary skill in the art, foundation
The thought of the present invention, will change in specific embodiments and applications, and in sum, this specification content is not
It is interpreted as limitation of the present invention.
Claims (4)
1. a kind of different layer of dominant type building structure vibrates Multipoint synchronous method of testing, comprises the steps：
(1) measuring point is laid：By to dominant type building structure feature analysiss, it is determined that needing the multiple keys for carrying out vibration-testing
Layer, in each key stratum measuring point is laid；
(2) measuring point packet：The measuring point is grouped by measuring point packet mode is overlapped, comprising the survey that quantity is equal in each group
Point, and adjacent group has at least one to overlap measuring point；
(4) vibration-testing：Vibration-testing is carried out to each group, test data is obtained；
(5) data analysiss：Flutter test data is analyzed, contrast overlaps the vibration parameters measured twice before and after measuring point, its
In, then it is efficiency test data when in front and back two-time vibration parameter error is less than certain value.
2. the different layer of dominant type building structure as described in claim 1 vibrates Multipoint synchronous method of testing, wherein, in each group
The quantity of measuring point is two or three or four；The quantity for overlapping measuring point is one or two or three.
3. the different layer of dominant type building structure as described in claim 1 vibrates Multipoint synchronous method of testing, wherein, the vibration
Parameter includes：Amplitude, remarkable mid-band frequency and power spectral density.
4. the different layer of dominant type building structure as described in claim 3 vibrates Multipoint synchronous method of testing, wherein, overlap measuring point
When in front and back twice the amplitude error is less than 5%, when the remarkable mid-band frequency error is less than 5%, the power spectrum
Then it is efficiency test data when degree squared difference and error are less than 10%.
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| CN201611159184.1A CN106679798A (en) | 2016-12-15 | 2016-12-15 | Heterosphere vibrating multi-point synchronization testing method of towering type building structure |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851436A (en) * | 2006-05-31 | 2006-10-25 | 汕头大学 | Big-span roof and super high-rise building structure wind vibration response detecting and computing method |
| JP2007327873A (en) * | 2006-06-08 | 2007-12-20 | Tokyo Gas Co Ltd | Synchronizing/processing method for seismic recording data |
| JP2010014604A (en) * | 2008-07-04 | 2010-01-21 | Kajima Corp | Vibration measurement system, sensor node, and management node |
| CN102506986A (en) * | 2011-12-02 | 2012-06-20 | 江苏方天电力技术有限公司 | Test system and method for mode and vibration of self-supporting tower and large-span power transmission tower |
-
2016
- 2016-12-15 CN CN201611159184.1A patent/CN106679798A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851436A (en) * | 2006-05-31 | 2006-10-25 | 汕头大学 | Big-span roof and super high-rise building structure wind vibration response detecting and computing method |
| JP2007327873A (en) * | 2006-06-08 | 2007-12-20 | Tokyo Gas Co Ltd | Synchronizing/processing method for seismic recording data |
| JP2010014604A (en) * | 2008-07-04 | 2010-01-21 | Kajima Corp | Vibration measurement system, sensor node, and management node |
| CN102506986A (en) * | 2011-12-02 | 2012-06-20 | 江苏方天电力技术有限公司 | Test system and method for mode and vibration of self-supporting tower and large-span power transmission tower |
Non-Patent Citations (2)
| Title |
|---|
| 夏禾: "《铁路桥梁养护维修》", 30 November 2010 * |
| 谭祥军: "《某大桥模态测试分析》", 《第二十二届全国振动与噪声应用学术会议论文集》 * |
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Application publication date: 20170517 |