CN211527337U - Grating paster for detecting in-service state of glass curtain wall in real time - Google Patents
Grating paster for detecting in-service state of glass curtain wall in real time Download PDFInfo
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- CN211527337U CN211527337U CN202020359338.7U CN202020359338U CN211527337U CN 211527337 U CN211527337 U CN 211527337U CN 202020359338 U CN202020359338 U CN 202020359338U CN 211527337 U CN211527337 U CN 211527337U
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Abstract
The utility model relates to a grating patch for real-time detection of the in-service state of a glass curtain wall, which comprises a grating patch, wherein the grating patch comprises a substrate and 4 gratings arranged on the substrate; the substrate is square, and 4 gratings are symmetrically distributed relative to the center of the substrate; the grating comprises a plurality of grating strips, each grating strip comprises 1 bottom grating strip and 2 side grating strips which are connected with two ends of each bottom grating strip and form an angle of 45 degrees with the bottom grating strips; each bottom grating strip in each grating is vertical to and symmetrical to the diagonal line of the substrate in the area where the bottom grating strip is located, each side grating strip extends outwards and is parallel to the four sides of the substrate respectively, and each grating strip is distributed in parallel at equal intervals or distributed in parallel at intervals according to the detection requirement. Through the utility model discloses, curtain glass surface relevant position or regional strain or the deformation condition in the latent frame glass curtain wall of usable grating paster sensing, structural adhesive and/or curtain glass's in the labour state in view of the above in real time aassessment glass curtain wall.
Description
Technical Field
The utility model relates to a real-time detection glass curtain wall is at the grating paster of labour state belongs to glass curtain wall's detection technical field.
Background
The glass curtain wall, especially the hidden frame glass curtain wall, is widely applied to high-rise and super high-rise buildings in cities. In the hidden frame glass curtain wall structure, a metal outer frame used for clamping glass and bearing the weight of the glass is not arranged, and the curtain wall glass is fixed on a cross beam and a longitudinal beam of the metal inner frame through silicone structural adhesive.
With the increase of service time, under the action of external factors such as cold and hot weather effect, sunlight irradiation, wind load, moist corrosive environment and the like, the silicone structural adhesive tends to age, and the phenomena of hardening, embrittlement, reduction of elasticity, cracking due to insufficient displacement bearing capacity, bonding failure and the like occur, meanwhile, the curtain wall glass also has the phenomena of cracking, spontaneous explosion and the like due to structural stress and cold and hot effect, and the potential safety hazard of personal injury and property loss is caused. Therefore, the in-service state including the working state and the safety state of the structural adhesive and the curtain wall glass in the glass curtain wall needs to be timely and effectively detected and evaluated.
One method for detecting the in-service state of the structural adhesive in the prior art is to extract part of adhesive samples from a structural adhesive block of a glass curtain wall and test the mechanical properties in a laboratory, belongs to a destructive ex-situ test method, and cannot judge the effectiveness of the properties of the structural adhesive, such as elasticity, deflection bearing capacity, cohesive force and the like, on site and in real time; one method is to apply load to curtain wall glass and detect the mechanical property of structural adhesive (CN 108489819A, a detection device and an evaluation method for structural adhesive of glass curtain wall), and although this method belongs to field detection, it needs a special contact test device, and is not suitable for real-time detection of glass curtain walls of high-rise and super high-rise buildings, and it is difficult to accurately simulate the effect of external factors such as cold and heat load and wind load on curtain wall glass and structural adhesive in practical application.
One method for detecting the in-service state of the curtain wall glass in the prior art is to measure the stress stripes of the glass curtain wall under the irradiation of a polarized light source by using a refraction photoelastic meter (CN 101413936B, a method for detecting the spontaneous explosion hidden danger of the glass curtain wall), analyze the internal stress distribution of the glass curtain wall and evaluate the explosion risk of the curtain wall glass; a method for detecting the stress distribution of glass curtain wall in situ by using various contact stressometers (such as CN 102565309A, equipment and method for detecting the glass burst tendency of curtain wall; CN102620867A, method and device for detecting the temperature stress of glass curtain wall in situ) needs special detecting instruments, and the latter belongs to contact measurement and is not suitable for real-time detection and monitoring of the in-service state of the glass curtain wall in the glass curtain wall of high-rise and super high-rise buildings.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome not enough among the prior art, provide a real-time detection glass curtain wall is at the grating paster of labour state, glass curtain wall structural adhesive and curtain glass based on the grating principle are at the real-time of labour state, non-contact's detection, assessment means, are suitable for structural adhesive and curtain glass to include the real-time supervision at the labour state of operating condition and safe state among the high-rise and super high-rise building glass curtain wall.
The utility model aims at realizing like this, a real-time detection glass curtain wall is at grating paster of labour state, including the grating paster, its characterized in that: the grating patch comprises a substrate and 4 gratings arranged on the substrate;
the substrate is square, and 4 gratings are symmetrically distributed relative to the center of the substrate;
the grating comprises a plurality of grating strips, each grating strip comprises 1 bottom grating strip and 2 side grating strips which are connected with two ends of each bottom grating strip and form an angle of 45 degrees with the bottom grating strips;
each bottom grating strip in each grating is vertical to and symmetrical to the diagonal line of the substrate in the area where the bottom grating strip is located, each side grating strip extends outwards and is parallel to the four sides of the substrate respectively, and each grating strip is distributed in parallel at equal intervals or distributed in parallel at intervals according to the detection requirement.
The substrate is a flexible membrane or a flexible thin substrate.
The size of each grating, the size and number of each grating strip in each grating, and the spacing between each grating strip depend on the detection requirements.
The utility model has reasonable and simple structure, easy production and manufacture and convenient use, and the device of the utility model comprises a substrate and 4 gratings arranged on the substrate; the substrate is a square flexible membrane or a flexible thin substrate, and the size of the substrate is determined according to the detection requirement; 4 gratings are distributed symmetrically relative to the center of the substrate; the 1 grating comprises a plurality of grating strips, and the 1 grating strip comprises 1 bottom grating strip and 2 side grating strips which are connected with two ends of the bottom grating strip and form an angle of 45 degrees with the bottom grating strip; each bottom grating in each grating is vertical to and symmetrical to the diagonal line of the substrate in the area where the bottom grating is located, each side grating extends outwards and is parallel to the four edges of the substrate respectively, and the grating strips are distributed in parallel at equal intervals or distributed in parallel at intervals according to the detection requirement; the size of each grating, the size and number of each grating strip in each grating, and the spacing between each grating strip depend on the detection requirements.
The utility model discloses a theory of operation does:
in the hidden frame glass curtain wall structure, curtain wall glass pre-fixed by double faced adhesive tapes is fixed on a cross beam and a longitudinal beam of a metal inner frame through structural adhesives, and a gap between adjacent curtain wall glass is filled with a sealing foam strip and a sealing adhesive.
In the service process of the glass curtain wall, the effect of external environmental factors on the curtain wall glass and the interaction between the curtain wall glass and the structural adhesive caused by the effect generate structural stress/strain in the curtain wall glass, and generate corresponding strain or deformation on the surface of the curtain wall glass, and the structural stress/strain existing in the curtain wall glass and the strain or deformation on the surface of the curtain wall glass are related to the mechanical properties and the working state of the structural adhesive and the curtain wall glass, namely the strain or deformation on the surface of the curtain wall glass reflects the service state of the structural adhesive and the curtain wall glass.
The utility model discloses through the strain or the deformation that detects curtain glass surface relevant position based on the grating principle, assess in real time glass curtain wall structure glue and curtain glass's the state in active service.
When the device is applied, the grating patch is fixed on a relevant part or area of the surface of the curtain wall glass to be detected;
recording grating strip distribution images of each grating on the grating patch regularly or irregularly, emphatically or conventionally according to the detection requirement;
the strain or deformation of the surface of the curtain wall glass is transmitted to each grating through the substrate, and is expressed as the change of the distribution state of grating strips in each grating. The strain or deformation in the horizontal direction in the plane is represented as the change of the distribution state of each side grating arranged in parallel along the horizontal direction in the grating, the strain or deformation in the vertical direction in the plane is represented as the change of the distribution state of each side grating arranged in parallel along the vertical direction in the grating, and the strain or deformation in the horizontal direction and/or the vertical direction in the plane is simultaneously represented as the change of the distribution state of each bottom grating arranged in parallel along the diagonal direction of the substrate in each grating.
Comparing the recorded grating strip distribution image of each grating with a grating reference image by using image processing software in a computer, and analyzing the relative change condition of the grating strip distribution state of each grating relative to the grating reference image;
or, utilizing image processing software in a computer to compare grating strip distribution images of each grating recorded at different moments, and analyzing the change condition of the grating strip distribution state of each grating along with time;
analyzing the strain or deformation condition of the detected part or area on the surface of the curtain wall glass according to the above information, and further evaluating the in-service state of structural adhesive and/or curtain wall glass in the glass curtain wall;
preferably, an unmanned aerial vehicle carries a digital camera to shoot and record the grating strip distribution image of each grating on the grating patch;
or, shooting and recording the grating strip distribution image of each grating on the grating patch along a motion guide rail by an image recorder comprising a digital camera;
or, shooting and recording the grating strip distribution image of each grating on the grating patch by a digital camera manually.
Has the advantages that:
the utility model discloses utilize the strain or the deformation condition in curtain wall glass surface relevant position or region among the hidden frame glass curtain wall of grating paster sensing, structural adhesive and/or curtain wall glass's in the labour state in view of the above aassessment glass curtain wall. The grating patch is fixed on a to-be-detected part or area on the surface of the curtain wall glass according to detection requirements, and a grating strip distribution image reflecting the surface strain or deformation of the curtain wall glass is obtained in a non-contact optical mode, so that the method is suitable for detecting and evaluating the in-service state of structural adhesive and the curtain wall glass in the glass curtain wall regularly or irregularly, in a key or conventional manner, and is simple in structure and flexible and convenient to use. Compared with the method for extracting the structural adhesive sample from the glass curtain wall structure to analyze the mechanical property in a laboratory in the prior art, the method not only avoids the damage to the in-service structural adhesive, but also has the advantages of in-situ and real-time performance; compared with the method for detecting the mechanical property of the structural adhesive by applying load to the glass panel of the curtain wall in the prior art, the method not only reduces the requirement on detection equipment, but also belongs to non-contact sensing, and is suitable for detecting and monitoring the glass curtain wall of high-rise and super high-rise buildings; compared with the method for detecting the surface state of the curtain wall glass by adopting a refraction photoelastic meter or a contact type stress meter in the prior art, the method can realize non-contact type, in-situ and real-time measurement, and is particularly suitable for detecting and monitoring the glass curtain walls of high-rise and super high-rise buildings or large-area glass curtain walls.
Drawings
Fig. 1 is a schematic structural view of the grating patch of the present invention;
FIG. 2 is a schematic view of the structural relationship between the grating patch and the glass curtain wall when the grating patch is used for detecting the in-service state of the structural adhesive in the glass curtain wall;
FIG. 3 is a cross-sectional view showing the structural relationship between the grating patch and the glass curtain wall when the grating patch is used for detecting the in-service state of the structural adhesive in the glass curtain wall;
FIG. 4 is a schematic view showing the structural relationship between the grating patch and the glass curtain wall when the grating patch of the present invention is used for detecting the surface state of the curtain wall glass in the glass curtain wall;
FIG. 5 is a sectional view showing the structural relationship between the grating patch and the glass curtain wall when the grating patch of the present invention is used for detecting the surface state of the curtain wall glass in the glass curtain wall;
in the figure: 1 grating patch, 11 substrates, 12 gratings, 121 grating strips, 121-1 bottom grating strips, 121-2 side grating strips, 2 curtain wall glass, 3 structural adhesive, 4 metal inner frame beams, 5 sealing adhesive strips, 6 sealing foam strips and 7 double-sided adhesive tapes.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
A grating patch for detecting the in-service state of a glass curtain wall comprises a substrate 11 and 4 gratings arranged on the substrate 11;
the substrate 11 is a square flexible membrane or a flexible thin substrate;
the 4 gratings 12 are distributed symmetrically relative to the center of the substrate;
each grating 12 comprises a plurality of grating strips 121 which are distributed in parallel, each grating strip comprises 1 bottom grating strip 121-1 and 2 side grating strips 121-2 which are connected with two ends of the bottom grating strip and form an angle of 45 degrees with the bottom grating strip;
each bottom grid bar 121-1 in each grating 12 is vertical to and symmetrical to the diagonal line of the substrate 11 in the area, and each side grid bar 121-2 extends outwards and is parallel to four sides of the substrate 11 respectively;
the grating strips 121 in the grating 12 are distributed in parallel at equal intervals or distributed in parallel at intervals set according to the detection requirement.
In the structure of the glass curtain wall 2, curtain wall glass 2 pre-fixed by double faced adhesive tape 7 is fixed on a metal inner frame beam 4 through structural adhesive 3, and a gap between adjacent curtain wall glass 2 is filled with a sealing foam strip 6 and a sealing adhesive strip 5.
Embodiment 1:
fig. 1, fig. 2 and fig. 3 show an implementation method of the grating patch of the present invention for detecting the in-service state of structural adhesive in a glass curtain wall.
First installation
The grating patch 1 is fixed at the joint of 4 adjacent pieces of curtain wall glass, the center of the grating patch 1 is aligned to the center of a cross-shaped sealing adhesive tape between the 4 pieces of curtain wall glass 2, 4 gratings 12 on the grating patch 1 are respectively covered at the lower corners or the upper corners of the 4 pieces of curtain wall glass 2 and are opposite to the area of the structural adhesive 3, and the 4 gratings 12 are symmetrically distributed relative to the center of the cross-shaped sealing adhesive tape 5 between the 4 pieces of curtain wall glass 2;
detection of
Shooting and recording the grating strip 121 distribution image of each grating 12 in the grating patch 1 according to the detection requirement by using an unmanned aerial vehicle carrying a digital camera;
comparing the obtained grating bar 121 distribution image of each grating 12 with a grating reference graph by using image processing software in a computer, and analyzing the change condition of the grating bar 121 distribution state of each grating 12 relative to the grating reference graph;
or, image processing software is used in the computer to compare the grating bar 121 distribution images of each grating 12 obtained at different times, and the change of the grating bar 121 distribution state of each grating 12 along with time is analyzed;
and analyzing the strain or deformation condition of the regions at the four corners of the surface of the detected curtain wall glass 2 opposite to the structural adhesive 3, and evaluating the in-service state of the detected structural adhesive 3.
Embodiment 2:
fig. 1, fig. 4 and fig. 5 show an implementation method of the grating patch of the present invention for detecting the in-service state of curtain wall glass in a glass curtain wall.
First installation
The grating patches 1 are fixed on the positions, required to be detected, on the surface of the curtain wall glass 2 or the grating patches 1 are fixed in the areas, required to be detected, on the surface of the curtain wall glass 2 in parallel.
Detection of
Shooting and recording the grating strip 121 distribution image of each grating 12 in the grating patch 1 according to the detection requirement by using an unmanned aerial vehicle carrying a digital camera;
comparing the obtained grating strip distribution image of each grating 12 with a grating reference graph by using image processing software in a computer, and analyzing the change condition of the distribution state of the grating strips 121 of each grating 12 relative to the grating reference graph;
or, image processing software is used in the computer to compare the grating bar 121 distribution images of each grating 12 obtained at different times, and the change of the grating bar 121 distribution state of each grating 12 along with time is analyzed;
and analyzing the strain or deformation condition of the part or area required to be detected on the surface of the curtain wall glass 2 according to the strain or deformation condition, and evaluating the in-service state of the detected curtain wall glass.
Claims (3)
1. The utility model provides a real-time detection glass curtain wall is grating paster of state in active service, includes grating paster (1), its characterized in that: the grating patch (1) comprises a substrate (11) and 4 gratings (12) arranged on the substrate (11);
the substrate (11) is square, and 4 gratings (12) are distributed symmetrically relative to the center of the substrate;
the grating (12) comprises a plurality of grating strips (121), each grating strip (121) comprises 1 bottom grating strip (121-1) and 2 side grating strips (121-2) which are connected to two ends of the bottom grating strip (121-1) and form an angle of 45 degrees with the bottom grating strip (121-1);
each bottom grating (121-1) in each grating (12) is vertical to and symmetrical to the diagonal line of the substrate (11) in the area where the bottom grating is located, each side grating (121-2) extends outwards and is parallel to the four sides of the substrate (11) respectively, and each grating (121) is distributed in parallel at equal intervals or distributed in parallel at intervals required by detection.
2. The grating patch for detecting the in-service state of the glass curtain wall in real time as claimed in claim 1, wherein: the substrate (11) is a flexible membrane or a flexible thin substrate.
3. The grating patch for detecting the in-service state of the glass curtain wall in real time as claimed in claim 1, wherein: the size of each grating (12), the size and number of each grating strip (121) in each grating (12) and the spacing between each grating strip (121) depend on the detection requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359338.7U CN211527337U (en) | 2020-03-20 | 2020-03-20 | Grating paster for detecting in-service state of glass curtain wall in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359338.7U CN211527337U (en) | 2020-03-20 | 2020-03-20 | Grating paster for detecting in-service state of glass curtain wall in real time |
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| CN211527337U true CN211527337U (en) | 2020-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216553A (en) * | 2021-11-25 | 2022-03-22 | 中建科技集团有限公司 | Safety monitoring device of glass curtain wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216553A (en) * | 2021-11-25 | 2022-03-22 | 中建科技集团有限公司 | Safety monitoring device of glass curtain wall |
| CN114216553B (en) * | 2021-11-25 | 2023-12-26 | 中建科技集团有限公司 | Safety monitoring device of glass curtain wall |
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