CN114894367A - Digital detection and treatment integrated method for bolt group looseness - Google Patents
Digital detection and treatment integrated method for bolt group looseness Download PDFInfo
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- CN114894367A CN114894367A CN202210440630.5A CN202210440630A CN114894367A CN 114894367 A CN114894367 A CN 114894367A CN 202210440630 A CN202210440630 A CN 202210440630A CN 114894367 A CN114894367 A CN 114894367A
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- 238000001514 detection method Methods 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005067 remediation Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005034 decoration Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009418 renovation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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Abstract
The invention relates to a digital detection and remediation integrated method for bolt group looseness, which comprises the following steps: confirming parameters of the bolt group at the part to be detected; selecting a digital stress wrench matched with the parameters and setting a torque threshold; applying torque to the bolt by adopting a digital stress wrench to start detection, and sending an alarm and storing peak torque data corresponding to the alarm and loosening data of the bolt during detection when the applied torque reaches the torque threshold; and sequentially finishing the loosening detection and the regulation of all the bolts, generating a detection and regulation report according to the peak torque data and the loosening data, and sending the detection and regulation report to the mobile terminal. The digital detection and treatment integrated method for the bolt group loosening can be used for treating the bolt loosening condition, can also be used for comprehensively recording and judging the condition of the building detection part and the defect distribution position according to the detection data, is more accurate in detection and more timely in treatment, and is higher in accuracy and reliability when used for detecting actual projects.
Description
Technical Field
The invention relates to the technical field of maintenance of steel structure building bolts, in particular to a digital detection and treatment integrated method for bolt group looseness.
Background
The bolt group connection is a main connection mode of the steel structure node. In actual engineering, due to the fact that construction quality does not meet the standard requirements or the repeated loading effect in the subsequent service process, the bolts are likely to loosen whether steel structure nodes of newly built buildings or existing buildings. The bolt looseness will produce adverse effect to the connection quality of steel construction node, the potential safety hazard appears even.
The method for detecting the bolt looseness includes a common torque method, an acoustic elasticity method, a piezoelectric sensor method, an impedance method, an image recognition method and the like. Wherein, the common torque method adopts the traditional manual reading, manual recording and manual report writing, and the efficiency is low; the other methods are not high in accuracy and reliability, are still in a test research stage, are generally only used for detection, and determine whether to implement targeted remediation according to a detection result, namely detection and remediation are implemented separately, so that integration cannot be realized.
Along with the popularization and application widely of the assembled steel structure, the steel structure nodes are more and more common in bolt group connection, and therefore the detection requirement for the looseness of the bolt group is larger and larger no matter new building inspection acceptance or existing building detection evaluation is achieved.
Disclosure of Invention
Therefore, it is necessary to provide an accurate, reliable and efficient method for digitally detecting and remedying the loosening of the bolt group.
A digital detection and treatment integrated method for bolt group loosening, comprising the following steps:
confirming parameters of the bolt group at the part to be detected;
selecting a digital stress wrench matched with the parameters and setting a torque threshold;
applying torque to the bolt by adopting a digital stress wrench to start detection, and sending an alarm and storing peak torque data corresponding to the alarm and loosening data of the bolt during detection when the applied torque reaches the torque threshold;
sequentially completing the loosening detection and the regulation of all bolts, generating a detection and regulation report according to the peak torque data and the loosening data, and sending the detection and regulation report to a mobile terminal;
the digital stress wrench comprises a wrench body, a bidirectional ratchet head, a torque sensor, a processor, a communication module and an alarm module, wherein the bidirectional ratchet head is arranged at the front end of the wrench body and is connected with the bidirectional ratchet head, and the processor is electrically connected with the torque sensor, the communication module and the alarm module respectively.
Further, the parameter of the bolt group at the position to be detected is confirmed, which includes:
for a newly built building, random extraction is carried out on site, or the position with different size deviations of nodes is extracted by routing inspection and photographing in combination with an unmanned aerial vehicle;
for existing buildings, the main stressed parts or the parts with obvious damage are extracted.
Further, for the existing building, the extraction of the main stressed part or the part with obvious damage also comprises the following steps:
when the part to be detected of the existing building is confirmed, the surface decoration layer is removed in advance, and the bolt to be detected is exposed.
Further, the determining the parameters of the bolt group at the position to be detected includes:
and confirming the specification and model of the bolt and the design torque of the bolt based on design and field actual measurement.
Further, the method further comprises:
the method comprises the steps of setting a track for detecting bolts, dividing a bolt group into a plurality of rows, detecting a middle bolt in the same row, sequentially detecting one end of the row, and sequentially detecting the other end of the row.
Further, the method further comprises:
and setting an alarm form of the digital stress wrench, and when torque is applied to the bolt, if the applied torque is smaller than the torque threshold value, giving an alarm once, and if the applied torque is larger than or equal to the torque threshold value, continuously giving two alarms.
Further, the generating a detection and remediation report according to the peak torque data and the loosening data, and sending the detection and remediation report to the mobile terminal includes:
and automatically generating a detection and treatment report of the bolt, and sending the report to a mobile phone APP of a project responsible person through the communication module.
Further, the detection report comprises a project name, a detection part, a detection number, a detection value, detection time and a detection person.
Further, the torque sensor detects the applied torque in real time; the alarm module is used for judging whether the bolt torque reaches a threshold value; the processor is used for storing peak data and detection information corresponding to the alarm; the communication module is used for uploading information in the processor to the mobile phone APP in a wireless mode.
Further, the bi-directional ratchet head may be fitted with a range of diameters of socket.
According to the digital detection and renovation integrated method for the bolt group looseness, bolt parameters and a set torque threshold are confirmed, a digital stress wrench is used for detecting bolts, alarming is assisted to store peak values, torque data and looseness data in the bolt detection process, the peak values, the torque data and the looseness data are arranged into reports and sent to the mobile terminal, so that the method can be used for renovating the bolt looseness condition on the one hand, and on the other hand, the condition and the defect distribution position of a building detection part can be comprehensively judged according to detection data, the detection is more accurate and more timely, when the method is used for actual project detection, the accuracy and the reliability are higher, and the application prospect is wider.
Drawings
FIG. 1 is a diagram illustrating the steps of the digital detection and remediation method for loosening bolt groups according to one embodiment;
fig. 2 is a schematic view of the numbering of the bolt groups adopted in the method of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, in one embodiment, a digital bolt group loosening detection and treatment integrated method includes the following steps:
step S110, confirming the parameters of the bolt group at the portion to be detected. Wherein treat that the parameter of the position bolt crowd that detects confirms, still include before: for a newly built building, random extraction is carried out on site, or the position with different size deviations of nodes is extracted by routing inspection and photographing in combination with an unmanned aerial vehicle; for existing buildings, the main stressed parts or the parts with obvious damage are extracted. And before confirming the part to be detected of the existing building, the surface decoration layer is removed in advance, and the bolt to be detected is exposed. The parameters of the bolt group comprise bolt specification types and bolt design torques confirmed based on design and field actual measurement, wherein the bolt specification types comprise bolt strength grade, nominal bolt diameter, shape of matched nut and size of matched nut; the bolt design torque refers to the torque which is required to be applied when the bolt connection meets the design requirement.
Illustratively, based on design and field measurement, the bolt is confirmed to be a large hexagon head high-strength bolt, the strength grade is 10.9s grade, the model is M20, and the bolt design torque is 442N M.
And step S120, selecting a digital stress wrench matched with the parameters and setting a torque threshold.
And step S130, applying torque to the bolt by using a digital stress wrench to start detection, and sending an alarm and storing peak torque data corresponding to the alarm and loosening data of the bolt during detection when the applied torque reaches a torque threshold value. As shown in fig. 2, a track for detecting the bolts is required to be set before detection, the bolt group is divided into a plurality of rows, the middle bolts are detected in the same row, and then the middle bolts are detected sequentially towards one end of the row and then the other end of the row is detected sequentially. The bolts may also be numbered according to the detection sequence, for example detection numbers 1-18. Therefore, according to the number setting, the detection number 1 is input in the first detection, the system can automatically store after the detection, and automatically generate the detection number 2, and so on until the detection tasks of all the detection numbers 1-18 are completed. In the detection process, an alarm form of the digital stress wrench is required to be set, when torque is applied to the bolt, if the applied torque is smaller than a torque threshold value, an alarm is given once, if the applied torque is larger than or equal to the torque threshold value, two alarms are continuously given twice, if the digital stress wrench gives an alarm once, the torque is continuously applied until two alarms are given, and peak data corresponding to the front and the back time point alarms are automatically stored. If the alarm is given twice, the torque value reaches the preset threshold value, the torque is qualified, the torque does not need to be applied, and the peak data corresponding to the alarm is automatically stored.
Step S140, sequentially completing the loosening detection and the regulation of all the bolts, generating a detection and regulation report according to the peak torque data and the loosening data, and sending the report to the mobile terminal, wherein the detection and regulation report comprises: and automatically generating a detection and treatment report of the bolt, and sending the report to a mobile phone APP of a project responsible person through a communication module. And the mobile phone APP can automatically generate an electronic report, each detection item corresponds to one project principal, namely, each project principal can only check or only receive detection data of the detection item responsible for the project principal. The detection report comprises a project name, a detection part, a detection number, a detection value, detection time and detection personnel.
The digital stress wrench comprises a wrench body, a bidirectional ratchet head, a torque sensor, a processor, a communication module and an alarm module, wherein the bidirectional ratchet head is arranged at the front end of the wrench body, the torque sensor is connected with the bidirectional ratchet head, and the processor is respectively and electrically connected with the torque sensor, the communication module and the alarm module; the bidirectional ratchet head can be provided with sleeves with a series of diameters; the detection requirements of bolts with M12-M32 specifications are met. The torque sensor detects the applied torque in real time; the alarm module is used for judging whether the bolt torque reaches a threshold value; the processor is used for storing peak data and detection information corresponding to the alarm; the communication module is used for uploading the information in the processor to the mobile phone APP in a wireless mode.
According to the digital bolt group loosening detection and renovation integrated method, bolt parameters and the set torque threshold are confirmed, the digital stress wrench is used for detecting bolts, the alarm is assisted to store peak torque data and loosening data in the bolt detection process, the peak torque data and the loosening data are arranged into a report and sent to the mobile terminal, so that the method can be used for renovating the bolt loosening condition on one hand, and can also be used for comprehensively recording and judging the condition of the building detection part and the defect distribution position according to the detection data on the other hand, the detection is more accurate, the renovation is more timely, when the method is used for actual project detection, the accuracy and the reliability are higher, and the application prospect is wider.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A digital detection and treatment integrated method for bolt group loosening is characterized by comprising the following steps:
confirming parameters of the bolt group at the part to be detected;
selecting a digital stress wrench matched with the parameters and setting a torque threshold;
applying torque to the bolt by adopting a digital stress wrench to start detection, and sending an alarm and storing peak torque data corresponding to the alarm and loosening data of the bolt during detection when the applied torque reaches the torque threshold;
sequentially completing the loosening detection and the regulation of all the bolts, generating a detection and regulation report according to the peak torque data and the loosening data, and sending the detection and regulation report to a mobile terminal;
the digital stress wrench comprises a wrench body, a bidirectional ratchet head, a torque sensor, a processor, a communication module and an alarm module, wherein the bidirectional ratchet head is arranged at the front end of the wrench body and is connected with the bidirectional ratchet head, and the processor is electrically connected with the torque sensor, the communication module and the alarm module respectively.
2. The digital detection and improvement integrated method for the loosening of the bolt group according to claim 1, wherein the parameter of the bolt group at the part to be detected is confirmed, and the method further comprises the following steps:
for a newly built building, random extraction is carried out on site, or the position with different size deviations of nodes is extracted by routing inspection and photographing in combination with an unmanned aerial vehicle;
for existing buildings, the main stressed parts or the parts with obvious damage are extracted.
3. The digital detection and treatment integrated method for the loosening of the bolt group as claimed in claim 2, wherein the method for extracting the main stress part or the obviously damaged part from the existing building further comprises the following steps:
when the part to be detected of the existing building is confirmed, the surface decoration layer is removed in advance, and the bolt to be detected is exposed.
4. The digital detection and treatment integrated method for the looseness of the bolt group according to claim 1, wherein the step of confirming the parameters of the bolt group at the part to be detected comprises the following steps:
and confirming the specification and the model of the bolt and the design torque of the bolt based on design and field actual measurement.
5. The digital detection and treatment integrated method for the loosening of the bolt group according to claim 1, further comprising:
the method comprises the steps of setting a track for detecting bolts, dividing a bolt group into a plurality of rows, detecting a middle bolt in the same row, sequentially detecting one end of the row, and sequentially detecting the other end of the row.
6. The digital detection and treatment integrated method for the loosening of the bolt group according to claim 1, further comprising:
and setting an alarm form of the digital stress wrench, and when torque is applied to the bolt, if the applied torque is smaller than the torque threshold value, giving an alarm once, and if the applied torque is larger than or equal to the torque threshold value, continuously giving two alarms.
7. The digital detection and treatment integrated method for the loosening of the bolt group according to claim 1, wherein the step of generating a detection and treatment report according to the peak torque data and the loosening data and sending the detection and treatment report to a mobile terminal comprises the following steps:
and automatically generating a detection and treatment report of the bolt, and sending the report to a mobile phone APP of a project responsible person through the communication module.
8. The digital detection and improvement integrated method for the loosening of the bolt group according to claim 7, wherein the detection report comprises a project name, a detection part, a detection number, a detection value, a detection time and a detection person.
9. The digital detection and remediation integrated method for bolt group loosening according to claim 7, wherein the torque sensor detects applied torque in real time; the alarm module is used for judging whether the bolt torque reaches a threshold value; the processor is used for storing peak data and detection information corresponding to the alarm; the communication module is used for uploading the information in the processor to the mobile phone APP in a wireless mode.
10. The digital detection and treatment integrated method for the looseness of the bolt group according to claim 1, wherein the bidirectional ratchet head can be provided with a sleeve with a series of diameters.
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| CN202210440630.5A CN114894367A (en) | 2022-04-25 | 2022-04-25 | Digital detection and treatment integrated method for bolt group looseness |
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| CN202210440630.5A CN114894367A (en) | 2022-04-25 | 2022-04-25 | Digital detection and treatment integrated method for bolt group looseness |
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2022
- 2022-04-25 CN CN202210440630.5A patent/CN114894367A/en active Pending
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