CN108168820A - A kind of building curtain wall safety detecting method - Google Patents
A kind of building curtain wall safety detecting method Download PDFInfo
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- CN108168820A CN108168820A CN201711483450.0A CN201711483450A CN108168820A CN 108168820 A CN108168820 A CN 108168820A CN 201711483450 A CN201711483450 A CN 201711483450A CN 108168820 A CN108168820 A CN 108168820A
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- curtain wall
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- building curtain
- vibration
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001133 acceleration Effects 0.000 claims abstract description 33
- 238000011156 evaluation Methods 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 20
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
Classifications
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/08—Detecting presence of flaws or irregularities
Abstract
A kind of building curtain wall safety detecting method, includes the following steps：Acceleration transducer and Wireless transceiver unit are installed respectively at the both ends of building curtain wall length direction to be detected and point midway, the data of measure are transmitted to signal processor progress data preservation by Wireless transceiver unit and are analyzed and processed in real time by three acceleration transducers, it obtains Acceleration pulse of the curtain wall in ambient vibration, then the vibration characteristics of building curtain wall is evaluated for evaluation index with deformation of the building curtain wall in the whole generation single order formation of building：Shape is vibrated when 3 points to be distributed near linear, then curtain wall, which is in, perfects state；Shape is vibrated when 3 points to mutate, then has crack inside curtain wall；Shape is vibrated when 3 points not to be distributed linearly, then is deteriorated at curtain wall tie point；The defects of it is an object of the invention to overcome live artificial detection technology, reacts internal degradation by the vibration characteristics of building curtain wall itself, avoids the not accuracy of artificial subjective judgement.
Description
Technical field
The present invention relates to structural safety evaluation areas, specifically a kind of building curtain wall safety detecting method.
Background technology
Building curtain wall be Building technology development product, be melt Building technology, the outer enclosed structure that the art of architecture is integrated,
The plate construction of polymorphic type is gradually moved towards by less varieties, especially China's building curtain wall developed recently is swift and violent, has become the world
One curtain wall produces and the first curtain wall uses big country.China has large quantities of existing building curtain walls and enters the aging maintenance interval at present, both
There is the problems such as fracture of building curtain wall stone material, glass self-explosion, colloid cracking, poorly sealed, gas leakage infiltration getting worse, glass and build
Build that material falls back causes casualties and the problem of property loss frequently occurs.The maintenance and inspection of existing building curtain wall cause government
The attention of relevant departments just starts, and the means in terms of coherent detection are also in the starting stage.
The performance test of state's Curtain Wall at present is primarily directed to air-tightness, watertightness performance, the wind resistance peace of curtain wall
In-plane displacement performance, performance detection is only that curtain wall test specimen is carried out under normal circumstances, in terms of safety, by building curtain wall
The routine test of anti-seismic performance shake table and unconventional test method under carry out Destructive Test Study testing result only to test specimen
It is responsible for, but long-term panel aging and the damage of linked system is connect with support construction can all leads to curtain in use
The reduction of wall anti-seismic performance.The existing Site Detection to existing building curtain wall is also in the artificial detection stage, due to panel itself
The visuality of deterioration and rear portion tie point is poor, and the accuracy of testing result is poor；Therefore being badly in need of one kind can be periodically or real
When accurately to the safety of building curtain wall（The degradation of curtain wall material itself, the loosening of linked system or destruction）It carries out
The method of detection.
Invention content
The purpose of invention is deficiency in order to solve the above-mentioned technical problem, provides a kind of building curtain wall safety detection side
Method, this method are theoretical based on vibration modal analysis and geometry " sight alignment ", it is therefore intended that overcome live artificial detection technology
The defects of, internal degradation is reacted by the vibration characteristics of building curtain wall itself, avoids the not accurate of artificial subjective judgement
Property and not visible property.
Present invention deficiency to solve above-mentioned technical problem and the technical solution adopted is that：A kind of building curtain wall safety inspection
Survey method, includes the following steps：
（1）The length of building curtain wall to be detected is measured, and marks the midpoint on building curtain wall on length direction；
（2）Three acceleration transducers are taken, are separately mounted to both ends and the point midway of building curtain wall length direction to be detected
Place simultaneously makes three acceleration transducers in the same horizontal line；
（3）Three acceleration transducer integrations are connected, then connection can pass data respectively on every acceleration transducer
Transport to the Wireless transceiver unit of signal processor；
（4）Three acceleration transducers work at the same time, and the data of measure are transmitted to signal processing by Wireless transceiver unit
Device carries out data preservation, and synchronous signal processor analyzes and processes the data of acquisition in real time, obtains curtain wall in ambient vibration
In the case of Acceleration pulse, then using building curtain wall building is whole single order formation occurs when deformation be evaluation index to building
The vibration characteristics for building curtain wall is evaluated：
（a）3 points of vibration shapes are distributed near linear, then curtain wall, which is in, perfects state；
（b）3 points of vibration shapes mutate, then have crack inside curtain wall, safety is relatively low；
（c）3 points of vibration shapes are not distributed linearly, then are deteriorated at curtain wall tie point, safety is relatively low.
Further, the Wireless transceiver unit is wireless blue tooth signal transmission unit.
Further, the signal processor is the computer with real time parsing system.
Further, Acceleration pulse when which is based on ambient vibration is measure signal,
Pass through the deformation behaviour of the vibration modal analysis curtain wall entirety of acceleration response.
The beneficial effects of the invention are as follows：
（1）The fracture of building curtain wall, the safety issue to come off are to hinder the maximum element of its development, existing artificial detection method
For building curtain wall safety detection with evaluation have large error, accuracy is relatively low, the method for the present invention be based on vibration modal analysis with
And " sight alignment " of geometry is theoretical, reacts its degradation and connection shape by the vibration characteristics of curtain wall panel itself
Condition has objectivity and accuracy to the safety detection and evaluation of existing building curtain wall, can eliminate existing artificial detection method
The drawbacks of, while be easy to assess testing result, it grasps and promotes convenient for testing staff, can be the real-time of building curtain wall
Periodic detection provides strong support, provides safeguard for its rapid and healthy；
（2）Coordinate of the detection method according to 3 sensors of dimensioned of each panel of the present invention, and by 3 sensor one
Change connection, then can be applied to the curtain wall of whole building so that detection is time saving and energy saving；Safety evaluatio side about building curtain wall
Method uses elastic material based on most of curtain wall panels, so " sight alignment " that employs mathematics is theoretical, three sensors
When gained vibration signal does not have consistency, the safety of the panel can be assert（Curtain wall panel inside or tie point）With one
Determine query, detection and evaluation method have more simplicity；
（3）The sensor that the present invention uses is not belonging to same type with displacement sensor, and method of the invention is based on ambient vibration
When Acceleration pulse to measure signal, by the deformation behaviour of the vibration modal analysis curtain wall entirety of acceleration response, and existing
Displacement sensor assay method, which needs to deform, has a certain size, it is necessary to which auxiliary is certain plus shakes or measure of pressurizeing, this method make
Highly sensitive acceleration transducer directly measures acceleration and analyzes the vibration shape, can reduce the dry of extraneous factor without pressurization
It disturbs, improves the accuracy of test result, while the method for the present invention can combine the safety inspection that the technologies such as unmanned plane carry out curtain wall
It surveys and evaluates, it is more time saving and energy saving to achieve the purpose that, lays the foundation for curtain wall detection and safety evaluatio.
Description of the drawings
Fig. 1 is that curtain wall is in the analysis of vibration signal result figure for perfecting state；
Fig. 2 is crannied analysis of vibration signal result figure inside curtain wall；
Fig. 3 is the analysis of vibration signal result figure deteriorated at curtain wall tie point.
Specific embodiment
With reference to specific embodiment, the present invention is further elaborated.Its specific embodiment is：
A kind of building curtain wall safety detecting method, includes the following steps：
（1）The length of building curtain wall to be detected is measured, and marks the midpoint on building curtain wall on length direction；
（2）Three acceleration transducers are taken, are separately mounted to both ends and the point midway of building curtain wall length direction to be detected
Place simultaneously makes three acceleration transducers in the same horizontal line；
（3）Three acceleration transducer integrations are connected, then connection can pass data respectively on every acceleration transducer
Transport to the wireless blue tooth signal transmission unit of the computer with real time parsing system；
（4）Three acceleration transducers work at the same time, and the data of measure are transmitted to by wireless blue tooth signal transmission unit
Computer carries out data preservation, and simultaneous computer analyzes and processes the data of acquisition in real time, obtains curtain wall in ambient vibration
In the case of Acceleration pulse, then using building curtain wall building is whole single order formation occurs when deformation be evaluation index to building
The vibration characteristics for building curtain wall is evaluated；Acceleration pulse when the safety partition detection method is based on ambient vibration is surveys
Determine signal, by the deformation behaviour of the vibration modal analysis curtain wall entirety of acceleration response, and existing displacement sensor assay method
Need deformation that there is a certain size, it is necessary to which auxiliary is certain plus shakes or measure of pressurizeing, the highly sensitive acceleration that this method uses
Sensor directly measures acceleration and analyzes the vibration shape, can reduce the interference of extraneous factor, improve the standard of test result without pressurization
True property；When vibration signal does not have consistency obtained by three sensors, can assert the safety of the panel has certain query,
Detection and evaluation method have more simplicity, and concrete condition includes：
（a）As shown in Figure 1,3 points（N1、N2、N3）It vibrates shape to be distributed near linear, then curtain wall, which is in, perfects state；
（b）As shown in Fig. 2, 3 points（N1、N2、N3）It vibrates shape to mutate, then has crack inside curtain wall, safety is relatively low；
（c）As shown in figure 3,3 points（N1、N2、N3）Vibration shape is not distributed linearly, then is deteriorated at curtain wall tie point, safety
It is relatively low.
The present invention is that have large quantities of existing building curtain walls based on China to enter the aging maintenance interval, and existing building stone curtain wall breaks
It splits, the problems such as colloid cracking, connector loosen getting worse, the coming off of curtain wall material causes casualties and property loss
The present situation that problem frequently occurs proposes the existing building curtain wall detection side for being suitble to engineering staff and the grasp of building manager's simplicity
Method can react internal degradation by the vibration characteristics of building curtain wall itself, avoid the not accurate of artificial subjective judgement
Property and not visible property；Test method according to the present invention, as long as curtain wall inside or bearing deteriorate, 1 first order mode
To change, that is, whole consistent deformation cannot be kept, it is impossible to follow the vibration deformation of building structure in itself, be based on more than
The feature present invention can react its degradation and connection shape according to 3 straight-line methods by the vibration characteristics of curtain wall panel itself
Condition is detected the safety of existing building curtain wall, has objectivity and accuracy.
The foregoing description of the disclosed embodiments, only for professional and technical personnel in the field is enable to realize or use this
Invention.A variety of modifications of these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide range of point.
Claims (4)
1. a kind of building curtain wall safety detecting method, which is characterized in that include the following steps：
（1）The length of building curtain wall to be detected is measured, and marks the midpoint on building curtain wall on length direction；
（2）Three acceleration transducers are taken, are separately mounted to both ends and the point midway of building curtain wall length direction to be detected
Place simultaneously makes three acceleration transducers in the same horizontal line；
（3）Three acceleration transducer integrations are connected, then connection can pass data respectively on every acceleration transducer
Transport to the Wireless transceiver unit of signal processor；
（4）Three acceleration transducers work at the same time, and the data of measure are transmitted to signal processing by Wireless transceiver unit
Device carries out data preservation, and synchronous signal processor analyzes and processes the data of acquisition in real time, obtains curtain wall in ambient vibration
In the case of Acceleration pulse, then using building curtain wall building is whole single order formation occurs when deformation be evaluation index to building
The vibration characteristics for building curtain wall is evaluated：
（a）3 points of vibration shapes are distributed near linear, then curtain wall, which is in, perfects state；
（b）3 points of vibration shapes mutate, then have crack inside curtain wall, safety is relatively low；
（c）3 points of vibration shapes are not distributed linearly, then are deteriorated at curtain wall tie point, safety is relatively low.
A kind of 2. building curtain wall safety detecting method according to claim 1, which is characterized in that the Wireless transceiver
Unit is wireless blue tooth signal transmission unit.
A kind of 3. building curtain wall safety detecting method according to claim 1, which is characterized in that the signal processing
Device is the computer with real time parsing system.
4. a kind of building curtain wall safety detecting method according to claim 1, which is characterized in that the safety partition is examined
Acceleration pulse when survey method is based on ambient vibration is whole by the vibration modal analysis curtain wall of acceleration response to measure signal
Deformation behaviour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711483450.0A CN108168820A (en) | 2017-12-29 | 2017-12-29 | A kind of building curtain wall safety detecting method |
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| CN201711483450.0A CN108168820A (en) | 2017-12-29 | 2017-12-29 | A kind of building curtain wall safety detecting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520688A (en) * | 2018-11-15 | 2019-03-26 | 北京科技大学 | Building curtain wall safe condition remote detecting method based on vibration measurement with laser technology |
| CN111157621A (en) * | 2020-01-06 | 2020-05-15 | 南京工业大学 | Image technology-based curtain wall safety performance rapid detection method |
| CN111504373A (en) * | 2020-04-24 | 2020-08-07 | 深圳市摩天氟碳科技有限公司 | Method for detecting safety of building outer wall and detector thereof |
| CN113982150A (en) * | 2021-11-08 | 2022-01-28 | 广东蚂蚁工场制造有限公司 | Glass curtain wall monitoring system |
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| CN106895788A (en) * | 2017-03-23 | 2017-06-27 | 济南大学 | A kind of reservoir dam deformation auto-monitoring method and system |
| CN107202835A (en) * | 2017-07-06 | 2017-09-26 | 中山大学 | A kind of glass curtain wall adhesive structure damage monitoring system and monitoring method |
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2017
- 2017-12-29 CN CN201711483450.0A patent/CN108168820A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN102840955A (en) * | 2012-09-06 | 2012-12-26 | 同济大学 | Multi-dimensional multi-mode ground shock test device of building curtain wall |
| CN104422513A (en) * | 2013-09-05 | 2015-03-18 | 中冶建筑研究总院有限公司 | Method for evaluating safety of stone curtain wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520688A (en) * | 2018-11-15 | 2019-03-26 | 北京科技大学 | Building curtain wall safe condition remote detecting method based on vibration measurement with laser technology |
| CN111157621A (en) * | 2020-01-06 | 2020-05-15 | 南京工业大学 | Image technology-based curtain wall safety performance rapid detection method |
| CN111504373A (en) * | 2020-04-24 | 2020-08-07 | 深圳市摩天氟碳科技有限公司 | Method for detecting safety of building outer wall and detector thereof |
| CN113982150A (en) * | 2021-11-08 | 2022-01-28 | 广东蚂蚁工场制造有限公司 | Glass curtain wall monitoring system |
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Application publication date: 20180615 |