CN103852417A - On-site detection method for mechanical property of existing glass curtain wall structural adhesive - Google Patents
On-site detection method for mechanical property of existing glass curtain wall structural adhesive Download PDFInfo
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- CN103852417A CN103852417A CN201210505422.5A CN201210505422A CN103852417A CN 103852417 A CN103852417 A CN 103852417A CN 201210505422 A CN201210505422 A CN 201210505422A CN 103852417 A CN103852417 A CN 103852417A
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- curtain wall
- glass curtain
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- glass
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- 239000011521 glass Substances 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 239000000853 adhesive Substances 0.000 title abstract 5
- 230000001070 adhesive effect Effects 0.000 title abstract 5
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 6
- 230000001447 compensatory effect Effects 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000004364 calculation method Methods 0.000 abstract description 6
- 238000009864 tensile test Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Abstract
The invention discloses an on-site detection method for structural adhesive mechanical properties of an existing glass curtain wall, which comprises the steps of fixed installation between a detection device and the curtain wall to be detected, vacuumizing of a sucker in the detection device, zero point calibration of the detection device, detection loading and tensile deformation measurement, calculation to obtain the tensile bonding strength of the structural adhesive of the glass curtain wall and the like. The method is scientific and reasonable, and zero point calibration of measurement can be carried out before a test by controlling the stepping motor, so that the detection precision during the tensile test is greatly improved, and the detection can truly and accurately reflect the field condition of the tensile bonding strength of the glass curtain wall structural adhesive; the method is simple and easy to implement, simple in equipment, capable of saving a large amount of field test cost and easy to popularize and use; the method can obtain the tensile bonding strength of the on-site glass curtain wall structural adhesive, can provide reliable data for the existing glass curtain wall identification, and can further evaluate the safety of the glass curtain wall by combining the experience of experts.
Description
Technical field
The present invention relates to a kind of evaluation of existing glass curtain wall, particularly relate to a kind of in-situ check and test method of existing glass curtain wall structure glue mechanical property, thus for assessment glass curtain wall security Data support is provided.
Background technology
The mechanical property test method of present glass curtain wall structure glue, is only limited to testing laboratory's sample preparation and detects.The sample preparation of curtain wall construction glue testing laboratory detects the only structure glue product of applicable newly-built curtain wall and tests, and only can obtain pulling strengrth and the extensibility of colloid self; For existing curtain wall, the key that security is identified is structure glue tensile bond strength, it not only depends on the pulling strengrth of structure glue self, also depends on bonding surface processing, whether selects primary coat, plays the impact that other technological factors such as colloid amount and outdoor environment change; Existing curtain wall structure glue is subject to the impact of above-mentioned condition, testing laboratory is detected with on-site actual situations and existed and depart from very greatly, and the quality condition that cannot truly reflect existing curtain wall structure glue detects in testing laboratory.The amount of deflection obtaining under the condition of local loading by measuring has been proposed in prior art, determine test unit and the method for structure sealant failure site, but, the various factors that this detection method also should be considered to determine the relation between amount of deflection and structure glue inefficacy and affect amount of deflection, and cladding glass panel may be destroyed in testing ground, site test complexity, can only serve as research and use, and detection method is difficult to promote the use of.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of simple to operate, measurement mechanical property in-situ check and test method of existing glass curtain wall structure glue accurately.
The invention provides a kind of existing glass curtain wall structure glue mechanical property in-situ check and test method, comprise the following steps;
A: start linear stepping motor, it is close to tested glass with the speed of setting that it orders about pulling force sucker;
B: after pulling force sucker contacts with glass curtain wall, stepper motor is applied on glass by the pressure presetting lentamente; After reaching the contact value of setting; Stepper motor stops action, to prevent that glass is damaged;
C: the vacuum draw that starts pulling force sucker moves until reach predetermined vacuum values;
D: pick-up unit is carried out to the Zero calibration of stress and/or shift value, to eliminate the impact of proving installation sucker generation deformation on accuracy of detection;
E: detect the measurement of loading and stretcher strain;
F: show or be transferred on PC by the data fitting analysis collecting and by also outer function relation figure storage.
The power that preferably the contact stress value of described setting is in the step B 30Kg.
Preferably described predetermined vacuum values is in the step C about 0.6 vacuum tightness.
Preferably described Zero calibration is in the step D to do small compensatory displacement movement by stepper motor, to realize the precondition of experiment: sucker and glass close contact, between the two, Stress and displacement displayed value is zero.
Preferably in described E step stepper motor with linear form stress application until reach shift value or the tensile stress value that program sets.
Preferably in described E step stepper motor with the form stress application of ladder: stop motion after drawing a section, and do the creep of compensatory displacement movement with collocation structure glue, after completing, restart operation; Repeat above-mentioned action until reach shift value or the tensile stress value that program sets.
Preferably in described F step, further comprise the data that record in conjunction with expertise, the security of glass curtain wall is assessed.
The present invention adopts said method tool to have the following advantages:
1. the inventive method science, reasonable, can reflect truely and accurately the field condition of glass curtain wall structure glue tensile bond strength, by the control to stepper motor, the Zero calibration that can measure before testing, this has improved the accuracy of detection while carrying out tension test greatly;
2. the present invention is simple, and equipment is simple, can save a large amount of site test costs, is easy to promote the use of;
3. utilize the inventive method can obtain the tensile bond strength of on-the-spot glass curtain wall structure glue, can identify reliable data are provided for existing glass curtain wall, in conjunction with expert's experience, can assess the security of glass curtain wall.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:
Accompanying drawing 1: pick-up unit arrangenent diagram of the present invention.
Accompanying drawing 2: pick-up unit work schematic diagram.
Embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
The arrangenent diagram of glass curtain wall pick-up unit in the present invention shown in Figure 1, this pick-up unit is for detection of the mechanical property of glass curtain wall structure glue, wherein M is glass curtain wall to be detected, N is glass curtain wall supported, and this glass curtain wall pick-up unit includes the frame being made up of by vertical frame 2 main beam 1 and supporting; Main beam 1 is measured the required instrument of glass curtain wall cohesive strength for laying, and bears the tensile load while stretching.Two supportings are arranged in the both sides of main beam 1 by vertical frame 2, its with respect to main beam 1 in the longitudinal direction spacing be adjustable and can carry out pivotable to adapt to on-the-spot needs with respect to main beam 1.2 fixing sucking disks 3 are preferably installed respectively on the end of vertical frame 2, also can install multiplely, it is for being absorbed and fixed at glass curtain wall by whole pick-up unit.On the middle position of main beam 1, be furnished with measuring system and vacuum maintains system.Wherein measuring system includes and the pulling force sucker 4 of glass contact, the drive system 5 that drives pulling force sucker to seesaw, system comprises linear stepping motor, for measuring the power sensor of the power being applied on pulling force sucker 4 and measuring the displacement transducer of the deformation quantity of viscose glue on glass; Wherein power installation of sensors is applied to the power on pulling force sucker with measurement in frame, and displacement transducer is worked as pulling force sucker when pulled by measurement, the glass curtain wall being pulled by pulling force sucker calculates the curtain wall deformation quantity that the structure glue after it occurs when pulled with respect to the displacement between the glass curtain wall not pulling; Vacuum maintains system and comprises respectively fixing sucking disk 3 and pulling force sucker 4 are vacuumized to the vacuum extractor to form and to maintain certain vacuum degree in sucker, and above-mentioned vacuum extractor is arranged respectively the both sides of measuring system, and it is preferably vacuum pump; Pick-up unit is the calculation element with being useful on control and data processing also, linear stepping motor and vacuum maintain system and are connected with calculation element by signal wire respectively, thereby the direction of motion (forward/backward) of calculation element control pulling force sucker, movement velocity and be loaded into the load on pulling force sucker, calculation element also guarantees in each sucker, to have suitable vacuum tightness simultaneously; Calculation element is preferably small-sized computing machine, it also collects displacement transducer and the measured analog signals obtaining of power sensor, and be converted into digital quantity, in the automatic measuring process of the loading-measurement-unloading to curtain wall to be measured, the data of measuring are stored and convert data fitting to function curve between load and deformation and data to carry out outer aobvious or transmission.
As shown in Figure 1, be provided with 4 casings on main beam 1, the first casing C, maintains system for loading the above-mentioned vacuum of fixing sucking disk; The second casing D, maintains system for the vacuum of loading pulling force sucker; Three, the 4th casing A, B, be respectively used to load linear stepping motor driver and power supply, control device.
Device shown in Fig. 2 comprises linear stepping motor and pulling force sucker 4 that pulling force sucker is driven; Wherein pulling force sucker can carry out the motion on fore-and-aft direction and be responsible for applying tension to glass curtain wall to be measured towards glass curtain wall to be measured, between pulling force sucker and glass curtain wall M, be to combine by vacuum adsorption force, can make like this power on sucker be transmitted on glass curtain wall and and then this tension is transmitted to structure glue G place to be measured coated on the glass curtain wall back side.To describe the key step of this glass curtain wall structure glue bond method for testing performance in detail below:
A: start linear stepping motor, it is close to tested glass with the speed of setting that it orders about pulling force sucker 4; Preferably, make pulling force sucker lentamente near glass, like this, the pulling force sucker of rubber mass just can not cause the impact that may damage glass when with glass contact;
B: after pulling force sucker 4 contacts with glass curtain wall M, stepper motor is lentamente by the pressure presetting, and the contact force that is for example preferably 30Kg is applied on glass; It should be noted that, this contact value can be according to actual needs and free setting, and under the pressure of 30Kg, the sucker of rubber mass and glass reach close contact, when being pumped Shi Buhui, air in sucker causes the infiltration of extraneous air to sucker inside like this; After reaching the contact value of setting; Stepper motor stops action, to prevent that glass is damaged;
C: start the vacuum draw action of pulling force sucker; Reaching predetermined vacuum values, while being preferably 0.6 vacuum tightness, vacuum pump is automatically out of service; And after pulling experiment process in, if low vacuum in the time of predetermined value, starts vacuum pump again automatically to maintain this vacuum tightness, to guarantee that pulling force sucker and glass are not pulled away from;
D: after pulling force sucker inside is evacuated, because air pressure effect makes the sucker generation deformation of rubber mass, and then produce STRESS VARIATION between sucker and glass; Now do small compensatory displacement movement by stepper motor, so that this stress and shift value are demarcated as to null value; Thereby realize the precondition of experiment: sucker and glass close contact, between the two, Stress and displacement displayed value is zero;
E: stepper motor starts, according to pre-set program, linearly glass to be applied to pulling force, records the tension that applies and the numerical value of displacement simultaneously, and this numerical value corresponding relation is plotted to functional image; In the time reaching shift value that program sets or tensile stress value, stepper motor is out of service; Or stepper motor also can be with the form stress application of ladder: stop motion after drawing a section, and at stopping period, stepper motor can do the creep relaxation of inching campaign with collocation structure glue, thereby makes to answer force retaining definite value; After compensation completes, again start that glass is applied to tension, repeat with this until move the stress value setting to, now stepper motor stop motion, stops the application of force immediately;
F: by the data fitting analysis collecting and by function relation figure storage outer aobvious or transmission; And in conjunction with expertise, the security of glass curtain wall is assessed.
As mentioned above, embodiments of the invention are had been described in detail, but as long as not departing from fact inventive point of the present invention and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection scope of the present invention.
Claims (7)
1. an existing glass curtain wall structure glue mechanical property in-situ check and test method, the pick-up unit that the method is used comprises sucker, the linear stepping motor that sucker is driven, said method comprising the steps of;
A: start linear stepping motor, it is close to tested glass with the speed of setting that it orders about pulling force sucker;
B: after pulling force sucker contacts with glass curtain wall, stepper motor is applied on glass by the pressure presetting lentamente; After reaching the contact value of setting; Stepper motor stops action, to prevent that glass is damaged;
C: the vacuum draw that starts pulling force sucker moves until reach predetermined vacuum values;
D: pick-up unit is carried out to the Zero calibration of stress and/or shift value, to eliminate the impact of proving installation generation deformation on accuracy of detection;
E: detect the measurement of loading and stretcher strain;
F: by the data analysis collecting and by function relation figure storage outer aobvious or transmission.
2. detection method as claimed in claim 1, the power that the contact value that it is characterized in that described setting is in the step B 30Kg.
3. detection method as claimed in claim 1, is characterized in that described predetermined vacuum values is in the step C about 0.6 tenuity factor.
4. detection method as claimed in claim 1, it is characterized in that described Zero calibration is in the step D to do small compensatory displacement movement by stepper motor, to realize the precondition of experiment: sucker and glass close contact, between the two, Stress and displacement displayed value is zero.
5. detection method as claimed in claim 1, is characterized in that stepper motor loads until reach predefined shift value or tensile stress value with linear form in described E step.
6. detection method as claimed in claim 1, is characterized in that in described E step stepper motor is with the form stress application of ladder: stop motion after drawing a section, and do the deformation of compensatory displacement movement with collocation structure glue, after completing, restart operation; Repeat above-mentioned action until reach predefined shift value or tensile stress value.
7. detection method as claimed in claim 1, is characterized in that in described F step, further comprises the data that record in conjunction with expertise, and the security of glass curtain wall is assessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505422.5A CN103852417A (en) | 2012-12-03 | 2012-12-03 | On-site detection method for mechanical property of existing glass curtain wall structural adhesive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505422.5A CN103852417A (en) | 2012-12-03 | 2012-12-03 | On-site detection method for mechanical property of existing glass curtain wall structural adhesive |
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| CN103852417A true CN103852417A (en) | 2014-06-11 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048820A (en) * | 2014-06-19 | 2014-09-17 | 湖南高速铁路职业技术学院 | Railroad sleeper detection data acquisition device and system |
| CN104215574A (en) * | 2014-09-01 | 2014-12-17 | 厦门市工程检测中心有限公司 | Method for detecting adhesive property of hollow glass external sealant |
| CN104729923A (en) * | 2015-03-11 | 2015-06-24 | 郭玉 | Suction-disc type tester for testing load bearing strength of glass curtain wall |
| CN104931415A (en) * | 2015-06-11 | 2015-09-23 | 上海福耀客车玻璃有限公司 | Device for quickly identifying bonding fastness of clad glass |
| CN105510226A (en) * | 2015-12-08 | 2016-04-20 | 中国建材检验认证集团股份有限公司 | Method and device for testing bonding property of second-time sealant of hollow glass |
| CN106092631A (en) * | 2016-07-20 | 2016-11-09 | 浙江五洲工程项目管理有限公司 | A kind of detection device of the reliability after glass curtain wall installation |
| CN108489819A (en) * | 2018-04-17 | 2018-09-04 | 郑州中原思蓝德高科股份有限公司 | The detection device and appraisal procedure of structure glue for glass curtain wall |
| CN112326549A (en) * | 2020-10-26 | 2021-02-05 | 山东众盛工程检测有限公司 | External wall insulation board drawing auxiliary equipment and drawing detection method thereof |
-
2012
- 2012-12-03 CN CN201210505422.5A patent/CN103852417A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048820A (en) * | 2014-06-19 | 2014-09-17 | 湖南高速铁路职业技术学院 | Railroad sleeper detection data acquisition device and system |
| CN104048820B (en) * | 2014-06-19 | 2017-02-01 | 湖南高速铁路职业技术学院 | Railroad sleeper detection data acquisition device and system |
| CN104215574A (en) * | 2014-09-01 | 2014-12-17 | 厦门市工程检测中心有限公司 | Method for detecting adhesive property of hollow glass external sealant |
| CN104215574B (en) * | 2014-09-01 | 2016-05-11 | 厦门市工程检测中心有限公司 | A kind of double glazing outer course fluid sealant adhesive property detection method |
| CN104729923A (en) * | 2015-03-11 | 2015-06-24 | 郭玉 | Suction-disc type tester for testing load bearing strength of glass curtain wall |
| CN104931415A (en) * | 2015-06-11 | 2015-09-23 | 上海福耀客车玻璃有限公司 | Device for quickly identifying bonding fastness of clad glass |
| CN105510226A (en) * | 2015-12-08 | 2016-04-20 | 中国建材检验认证集团股份有限公司 | Method and device for testing bonding property of second-time sealant of hollow glass |
| CN106092631A (en) * | 2016-07-20 | 2016-11-09 | 浙江五洲工程项目管理有限公司 | A kind of detection device of the reliability after glass curtain wall installation |
| CN108489819A (en) * | 2018-04-17 | 2018-09-04 | 郑州中原思蓝德高科股份有限公司 | The detection device and appraisal procedure of structure glue for glass curtain wall |
| CN112326549A (en) * | 2020-10-26 | 2021-02-05 | 山东众盛工程检测有限公司 | External wall insulation board drawing auxiliary equipment and drawing detection method thereof |
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Application publication date: 20140611 |