CN211718094U - Latent frame glass curtain wall structure glues bonding performance normal position detection device - Google Patents
Latent frame glass curtain wall structure glues bonding performance normal position detection device Download PDFInfo
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- CN211718094U CN211718094U CN201922276030.6U CN201922276030U CN211718094U CN 211718094 U CN211718094 U CN 211718094U CN 201922276030 U CN201922276030 U CN 201922276030U CN 211718094 U CN211718094 U CN 211718094U
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Abstract
The utility model provides a hidden frame glass curtain wall structural adhesive bonding performance in-situ detection device, which comprises a support body and a frame body which is telescopic along the horizontal direction and the vertical direction; the support body comprises a first support position, a second support position, a third support position, a fourth support position and a fourth support position, wherein the corresponding outer side ends of the first support position, the second support position and the fourth support position are respectively provided with a first clamping part, a second clamping part and a fourth clamping part which are connected with the first clamping part, the second clamping part and the fourth clamping; the frame body is provided with a strip-shaped joint surface which is suitable for being jointed with the glass surface of the detection area of the hidden frame glass to be detected under the action of external force; correspondingly, the first to fourth supporting positions are respectively matched and acted on four force application abutting points set on the inner side of the frame body through a hydraulic push rod and connected to the frame body through the corresponding force application abutting points; and a force sensor capable of acquiring acting force change information and/or a displacement sensor capable of acquiring position change information are arranged at the joint of each hydraulic push rod and the frame body or the joint of each hydraulic push rod and the corresponding support position.
Description
Technical Field
The utility model relates to an existing building curtain detects technical field, concretely relates to adhesive property normal position detection device is glued to latent frame glass curtain wall structure.
Background
The detection of the bonding performance of silicone structural sealant (hereinafter referred to as structural adhesive) is one of the key links in the safety identification of the existing hidden frame glass curtain wall. The structural adhesive is a key material in hidden frame glass curtain wall engineering, a glass panel of the hidden frame glass curtain wall is bonded with an aluminum auxiliary frame through the structural adhesive, the structural adhesive bears wind pressure load and glass dead weight load, and the bonding reliability of the structural adhesive directly influences the safety of the hidden frame glass curtain wall. Due to the influence of the chemical composition of the structural adhesive and the working environment, the performance of the structural adhesive can be degraded along with time, and the degradation of the performance of the structural adhesive is mainly shown by the phenomena of performance reduction of tensile bonding strength, tensile elongation and the like, hardening and cracking of the adhesive, degumming of the structural adhesive and the like. One manifestation of the curtain wall risk resulting in safety accidents is that the whole curtain wall falls, and the main reason for such accidents is that the structural adhesive is aged and falls off. Because the wind pressure resistance of curtain is higher, adopt traditional simulation static pressure case method to carry out wind pressure resistance and mechanical properties's safety inspection, need a pressure box that self-supporting ability is higher and strictly sealed, often can't realize under the on-the-spot original structure prerequisite of not destroying.
Therefore, the method for detecting the structural adhesive suitable for the safety evaluation of the existing glass curtain wall is researched, and the method has important significance for ensuring the accuracy of the safety evaluation and evaluation result of the existing glass curtain wall.
On the other hand, the quality of the structural adhesive is one of important indexes for evaluating the overall safety and durability of the glass curtain wall, and conventional detection methods for the structural adhesive mainly comprise a visual method, a knocking detection method, a cutting and drawing method, a shore hardness method and the like. The visual method and the knocking detection method can only be used as preliminary nondestructive detection of structural adhesive quality detection, have large influence of human factors and poor accuracy, and cannot meet the control requirement of glass safety detection; the cutting and drawing method is to send the sample of the on-site cutting part back to the laboratory for detection and carry out the drawing test, can directly measure the maximum tensile strength, the elongation at break, the adhesive failure form, the adhesive failure area and other results of the colloid, can be used as the detection method during arbitration, belongs to the detection of local damage, and needs to repair and reinforce after detection; the Shore hardness method is used for judging the hardening degree of the structural adhesive, is simple and quick, can quantitatively indicate the quality of the adhesive material, but the hardness is only one index of the structural adhesive, so that the comprehensive judgment can be realized by combining with a conventional detection method (such as visual inspection, knocking inspection and the like) or other methods.
In recent years, other detection methods such as ultrasonic detection, acoustic emission detection, infrared detection, and X-ray detection have been developed, and further, the airbag method, the suction cup method, and the multi-suction cup method, which have been introduced from abroad, are also used domestically. The air bag method belongs to an indoor detection method, and is used for detecting by simulating the wind pressure action of a glass curtain wall by means of a displacement measuring device; the method comprises the following steps that a sucker method and a multi-sucker method are used for detecting by equivalently converting uniform wind load borne by a tested glass panel into load at the edge part of the glass panel through simulation, the multi-sucker method simulates uniform wind pressure borne by the tested glass panel through multi-point load and is closer to the wind pressure borne by a glass curtain wall than the sucker method, and the two methods belong to outdoor detection and are generally used for detecting the bonding condition of a hollow glass curtain wall; ultrasonic detection and acoustic emission detection both have high accuracy, but are limited to flaw detection, cannot clearly measure the intensity, and have complex data processing.
With the continuous occurrence of the whole curtain wall falling accident, a detection method of quantitative judgment standard is urgently needed to guide the safety evaluation of the hidden frame glass curtain wall and the development of subsequent treatment work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the common defect that the performance degradation was glued to existing hidden frame glass curtain wall structure, a bonding performance normal position detection device is glued to hidden frame glass curtain wall structure is provided.
The technical problem to be solved by the utility model can be implemented by the following technical scheme.
The utility model provides a latent frame glass curtain wall structure glues adhesive property normal position detection device which characterized in that includes:
the supporting body comprises a first supporting position, a second supporting position, a third supporting position and a fourth supporting position, a first clamping portion connected with the first supporting position is arranged at the outer side end of the first supporting position, a second clamping portion connected with the second supporting position is arranged at the outer side end of the second supporting position, a third clamping portion connected with the third supporting position is arranged at the outer side end of the third supporting position, and a fourth clamping portion connected with the fourth supporting position is arranged at the outer side end of the fourth supporting position; and
the frame body is telescopic along the transverse direction and the vertical direction and is provided with a strip-shaped joint surface which is suitable for being jointed to the glass surface of the detection area of the hidden frame glass to be detected under the action of external force;
correspondingly, the first support position to the fourth support position are respectively matched and acted on four force application abutting points set on the inner side of the frame body through a hydraulic push rod and are connected to the frame body through the corresponding force application abutting points; and the joint of each hydraulic push rod and the frame body or the corresponding support position is provided with a force sensor capable of acquiring acting force change information and/or a displacement sensor capable of acquiring position change information.
As a further improvement of the present invention, the first clamping portion and the second clamping portion share a horizontal first synchronous displacement mechanism, the third clamping portion and the fourth clamping portion share a horizontal second synchronous displacement mechanism, the first clamping portion and the third clamping portion share a vertical third synchronous displacement mechanism, and the second clamping portion and the fourth clamping portion share a vertical fourth synchronous displacement mechanism.
As a further improvement of the technical solution, the first synchronous displacement mechanism and the second synchronous displacement mechanism are respectively a first connecting rod and a second connecting rod which run vertically and are parallel, two ends of the first connecting rod are connected with a first supporting position and a second supporting position, and two ends of the second connecting rod are connected with a third supporting position and a fourth supporting position; the third synchronous displacement mechanism and the fourth synchronous displacement mechanism are respectively a third connecting rod and a fourth connecting rod which are horizontally moved and parallel, the two ends of the third connecting rod are connected with a first supporting position and a third supporting position, and the two ends of the fourth connecting rod are connected with a second supporting position and a fourth supporting position.
As a further improvement of the technical scheme, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are telescopic rods.
As a preferred embodiment of the present invention, the connecting line of the four force applying abutment points is a rectangle.
When the in-situ detection device for the structural adhesive bonding performance of the hidden frame glass curtain wall is used for detection, the structural adhesive bonding performance of the hidden frame curtain wall can be judged quickly and quantitatively, the detection efficiency and accuracy are improved, early warning is made on structural adhesives which fail and are about to fail, the safety of the hidden frame curtain wall is quickly detected and evaluated, and the technical support is provided by timely performing safety improvement; the method provides a basis for the daily maintenance, the transformation design and the construction of the subsequent hidden frame curtain wall.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other examples can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a vertical surface structure of an in-situ detection device for structural adhesive bonding performance of a hidden frame glass curtain wall
FIG. 2 is a schematic view of a cross-sectional structure of the in-situ detection device for structural adhesive bonding performance of the hidden frame glass curtain wall along the horizontal direction.
Reference numerals: 1. a counter-force support system; 2. a gusset plate telescoping system; 3. fixing the locking system; 4. a hydraulic force application system; 5. a force sensor and a displacement sensor; 6. a push rod; 7. and (5) detecting the curtain wall glass.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
Based on the existing detection methods for the bonding performance of the structural adhesive of the hidden-frame glass curtain wall in the field, the air bag method can better simulate the air pressure, but the equipment is complex and the maintenance is difficult; the suction cup method is complex in equipment and only suitable for outdoor detection; the traditional push rod method is single-point loading, and can not better simulate the uniform wind pressure borne by the glass panel. The utility model provides a following normal position detection device can be at indoor loading, and equipment is simple, adopts square frame type loading device, better simulates the even wind pressure that the glass panels received.
Particularly, the utility model provides a latent frame glass curtain wall structure glues bonding performance normal position detection device, the device comprise counter-force braced system 1, gusset telescopic system 2, fixed locking system 3, hydraulic pressure afterburning system 4, power and displacement sensor 5 and push rod 6. The counter-force supporting system 1 is a telescopic steel pipe with larger rigidity; the gusset plate telescopic system 2 is a square frame which is composed of square steel pipes and can be telescopic in two directions; the fixed locking system 3 is a channel steel clamp fixed with a curtain wall upright post; the hydraulic stress application system 4 is 4 groups of small hydraulic jacks, one end of each jack is connected with the counter-force supporting system 1, and the other end of each jack is connected with the push rod 6; the force and displacement sensor 5 is arranged between the hydraulic force application system 4 and the counter force support system 1 and is used for collecting the internal force and the relative displacement value in the loading process; the push rod 6 is a steel pipe with large rigidity.
The fixed locking systems 3 can adjust the length in the horizontal direction and are fixed on the upright columns of the curtain walls on two sides, wherein the two fixed locking systems on the left side are fixed on one upright column, and the two fixed locking systems on the right side are fixed on the other upright column; the length of the stress plate telescopic system 2 can be adjusted in the vertical direction and the horizontal direction, so that the stress plate is close to the edge of the glass; the counter-force supporting system 1 provides counter-force through the fixed locking system 3, and applies thrust to the push rod 6 through the hydraulic force application system 4, so that a self-balancing system is formed among the curtain wall upright post, the glass and the in-situ detection device disclosed by the patent; the force sensor and the displacement sensor 5 can measure force and displacement data in the force application process, and are used for evaluating the reliability of the structural adhesive.
The counter-force supporting system provides counter-force through the fixed locking system and applies thrust to the push rod through the hydraulic force application system to form a self-balancing system; the fixed locking system can be adjusted in the horizontal direction, and the reinforcing plate telescopic system can be adjusted in the vertical direction and the horizontal direction so as to meet the detection requirements of glass curtain walls with different sizes.
Following adoption given the utility model provides a latent frame glass curtain wall structure glues bond property normal position detection device's concrete application mode, including following step:
and S1, selecting a single hidden frame glass curtain wall on the indoor side as a detection area, wherein the selected hidden frame glass curtain wall glass is not obviously damaged and the upright posts are not obviously deformed.
Step S2, the length of the fixed locking system 3 can be adjusted in the horizontal direction and the fixed locking system is fixed on the upright posts of the curtain walls on the two sides; the length of the stress plate telescopic system 2 can be adjusted in the vertical direction and the horizontal direction, so that the stress plate is close to the edge of the glass; the counter-force supporting system 1 provides counter-force through the fixed locking system 3, and applies thrust to the push rod 6 through the hydraulic force application system 4 to form a self-balancing system; the force sensor and the displacement sensor 5 can measure force and displacement data in the force application process, and are used for evaluating the reliability of the structural adhesive. The detection device is installed to meet the requirements and ensure uniform force application.
Step S3, the test force loading adopts graded loading, and the test force is increased to the standard value of the test load in a graded and sectional manner so as to reduce the test error; during testing, the test force is divided into 4-level loading according to the standard value of the test load by 4, and the test force is uniformly increased along with the increase of the loading level; in actual operation, the equivalent wind pressure of single-stage loading is controlled to be 200 Pa-300 Pa, preferably 250 Pa; the uniform speed is kept as much as possible in the hydraulic loading process, and the loading speed is controlled to be 160-240 Pa/min.
And step S4, stabilizing the test force when the test force reaches W and Wu respectively for a period of time, preferably 10-15 min, and observing the phenomena of mistaken tearing and degumming of the rubber seam. Wherein, when the structural adhesive is stabilized for more than 10min when loaded to W and Wu, the deformation of the structural adhesive tends to be mild and stable.
And step S5, recording force and displacement data in the force application process as a basis for evaluating the connection reliability of the structural adhesive under the action of the load. And if the glue joint has no tearing or degumming phenomenon and the force-displacement curve has no obvious reduction or the reduction amplitude is not more than 5%, judging that the structural glue of the hidden frame glass curtain wall is reliably bonded.
The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (5)
1. The utility model provides a latent frame glass curtain wall structure glues adhesive property normal position detection device which characterized in that includes:
the supporting body comprises a first supporting position, a second supporting position, a third supporting position and a fourth supporting position, a first clamping portion connected with the first supporting position is arranged at the outer side end of the first supporting position, a second clamping portion connected with the second supporting position is arranged at the outer side end of the second supporting position, a third clamping portion connected with the third supporting position is arranged at the outer side end of the third supporting position, and a fourth clamping portion connected with the fourth supporting position is arranged at the outer side end of the fourth supporting position; and
the frame body is telescopic along the transverse direction and the vertical direction and is provided with a strip-shaped joint surface which is suitable for being jointed to the glass surface of the detection area of the hidden frame glass to be detected under the action of external force;
correspondingly, the first support position to the fourth support position are respectively matched and acted on four force application abutting points set on the inner side of the frame body through a hydraulic push rod and are connected to the frame body through the corresponding force application abutting points; and the joint of each hydraulic push rod and the frame body or the corresponding support position is provided with a force sensor capable of acquiring acting force change information and/or a displacement sensor capable of acquiring position change information.
2. The in-situ detection device for structural adhesive bonding performance of the hidden frame glass curtain wall according to claim 1, wherein the first clamping portion and the second clamping portion share a transverse first synchronous displacement mechanism, the third clamping portion and the fourth clamping portion share a transverse second synchronous displacement mechanism, the first clamping portion and the third clamping portion share a vertical third synchronous displacement mechanism, and the second clamping portion and the fourth clamping portion share a vertical fourth synchronous displacement mechanism.
3. The in-situ detection device for structural adhesive bonding performance of the hidden frame glass curtain wall according to claim 2, wherein the first and second synchronous displacement mechanisms are a first connecting rod and a second connecting rod which are vertically oriented and parallel, respectively, two ends of the first connecting rod are connected with a first supporting position and a second supporting position, and two ends of the second connecting rod are connected with a third supporting position and a fourth supporting position; the third synchronous displacement mechanism and the fourth synchronous displacement mechanism are respectively a third connecting rod and a fourth connecting rod which are horizontally moved and parallel, the two ends of the third connecting rod are connected with a first supporting position and a third supporting position, and the two ends of the fourth connecting rod are connected with a second supporting position and a fourth supporting position.
4. The in-situ detection device for the structural adhesive bonding performance of the hidden frame glass curtain wall according to claim 3, wherein the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are telescopic rods.
5. The in-situ detection device for structural adhesive bonding performance of the hidden frame glass curtain wall according to claim 1, wherein the connecting line of the four force application abutting points is a rectangle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922276030.6U CN211718094U (en) | 2019-12-17 | 2019-12-17 | Latent frame glass curtain wall structure glues bonding performance normal position detection device |
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| CN201922276030.6U CN211718094U (en) | 2019-12-17 | 2019-12-17 | Latent frame glass curtain wall structure glues bonding performance normal position detection device |
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