CN103759690A - Device for measuring equivalent wall thickness of scaffold steel pipe and measuring method thereof - Google Patents
Device for measuring equivalent wall thickness of scaffold steel pipe and measuring method thereof Download PDFInfo
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- CN103759690A CN103759690A CN201410009696.4A CN201410009696A CN103759690A CN 103759690 A CN103759690 A CN 103759690A CN 201410009696 A CN201410009696 A CN 201410009696A CN 103759690 A CN103759690 A CN 103759690A
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Abstract
The invention discloses a device for measuring the equivalent wall thickness of a scaffold steel pipe and a measuring method thereof. A loading detection component is fixedly mounted on a simple support steel frame, concentrated force F is directly exerted on the middle of the scaffold steel pipe to be measured, according to the measured concentrated force and deflection of the steel pipe, the equivalent wall thickness (please see the specifications on the formula) of the steel pipe is calculated on the basis of the mechanics principle, and the equivalent wall thickness of the scaffold steel pipe is accurately calculated according to the action force exerted on the scaffold steel pipe to be measured, the strength of the applied force, and the deformation degree of the scaffold steel pipe to be measured. The method and device are easy to operate, the strength of the applied force and deformation data of the scaffold steel pipe are automatically monitored, errors caused by manual reading are avoided, the measured result is accurate and reliable, and the method and device have the advantages of being low in cost, easy to operate, accurate in measuring data, high in efficiency and the like.
Description
Technical field
The present invention relates to building materials fields of measurement, particularly relate to a kind of device and measuring method thereof for scaffolding steel pipe equivalence wall thickness measuring.
Background technology
At present, in use there is more problem in steel pipe scaffold, as because steel pipe is repeatedly used, scraped by wind and drench with rain, very easily get rusty, cause that the thickness of steel pipe changes, and then affect construction safety, therefore, need to detect at any time the variation of steel pipe scaffold thickness, take in time necessary measure.Steel pipe thickness measure is at present mainly contact slide calliper rule manual measurements, the method complex operation, take time and effort, and dependence human eye detection, range estimation easily causes people's kopiopia for a long time, produce larger measuring error, accuracy rate is lower, in addition, the steel pipe thickness measurement equipment cost occurring is at present higher, complex structure, carry inconvenience, execution conditions require high, be not suitable for the measurement of scaffolding steel pipe thickness, therefore, when steel pipe scaffold quality is inspected for acceptance, need a kind of can facilitating badly, fast, obtain exactly the automatic measurement method of the wall thickness of scaffolding steel pipe, realize and measure timely and accurately steel pipe thickness, avoid due to the steel pipe thickness construction risk bringing not up to standard.
Summary of the invention
The object of the invention is to provide a kind of scaffolding steel pipe equivalence wall thickness measuring device and measuring method thereof, overcomes existing contact slide calliper rule manual measurement complex operation, takes time and effort and relies on human eye detection, range estimation easily causes people's kopiopia, the low problem of measuring error, accuracy rate that generation is larger for a long time; Meanwhile, also solve that existing steel pipe thickness measurement equipment cost is high, complex structure, carry the problem that inconvenience, execution conditions requirement are high, be not suitable for the measurement of scaffolding steel pipe thickness.
For realizing above-mentioned technical purpose, the present invention adopts following technical scheme:
A kind of scaffolding steel pipe equivalence wall thickness measuring device, comprise and support the freely-supported steelframe of scaffolding steel pipe to be measured and be connected to the loading detection part on freely-supported steelframe, it is characterized in that: the main body of described freely-supported steelframe is horizontal support steel beam, the both sides of described support steel beam are respectively connected with vertical, vertical with a support steel beam support otic placode; On the plate face of described support otic placode, correspondence has scaffolding steel pipe reserved opening, and described scaffolding steel pipe to be measured passes through the scaffolding steel pipe reserved opening cross-arm of both sides in the centre of freely-supported steelframe; Described loading detection part comprises loading unit, sensor, data acquisition unit, data processing unit and the result output unit connecting in turn, the application of force termination of described loading unit end is by being positioned at the middle preformed hole of support steel beam vertically through after support steel beam, bottom is against on scaffolding steel pipe to be measured directly carries out the application of force to scaffolding steel pipe to be measured, and the axis of described application of force termination and the axis of scaffolding steel pipe to be measured are orthogonal to intersect; Described sensor is connected on the application of force termination of loading unit end, directly contacts with scaffolding steel pipe to be measured, comprises power sensor and displacement transducer.
As preferred version of the present invention, the side's of being shaped as plate of described support otic placode or up-narrow and down-wide trapezoidal plate.
As preferred version of the present invention, described loading unit is screw mandrel or the small-scale liquid cylinder pressure that utilizes artificial or power start.
Described power sensor is embedded in the bottom of screw mandrel or small-scale liquid cylinder pressure force side head, described displacement transducer is fixed on the side of application of force termination, described sensor is connected on the application of force termination of loading unit end, and described power sensor and displacement transducer be direct contact measured scaffolding steel pipe all.
A scaffolding steel pipe equivalence wall thickness measuring method of utilizing above-mentioned scaffolding steel pipe equivalence wall thickness measuring device to carry out, is characterized in that: measuring process is as follows:
Step 1, install freely-supported steelframe: freely-supported steelframe is steadily placed on the ground, two of scaffolding steel pipe to be measured is inserted respectively in two scaffolding steel pipe reserved opening that support on otic placode and placed between two parties and fixedly secure, and now scaffolding steel pipe to be measured is parallel with support steel beam;
The start preheating of step 3, equipment: by the preheating of starting shooting of sensor and data acquisition unit, be no less than 30s preheating time;
Step 5, data acquisition: steel pipe amount of deflection when data acquisition unit collection applies power
size with power F;
Step 6, data processing and calculating: calculate the equivalent wall thickness of scaffolding steel pipe to be measured, according to the mechanics principle of freely-supported steelframe, can derive the equivalent wall thickness formula of steel pipe,
, wherein, the external diameter that D is steel pipe, F is the power that steel pipe is subject to,
for the length of scaffolding steel pipe to be measured, E is steel pipe steel elastic modulus,
steel pipe amount of deflection for steel pipe;
Step 7, Output rusults: export the equivalent wall thickness value of scaffolding steel pipe to be measured, so far, mensuration completes.
As preferred version of the present invention, repeating step one arrives step 7 3～5 times, gets the mean value of all measurement results, as the equivalent wall thickness of final scaffolding steel pipe to be measured.
Compared with prior art, technical advantage of the present invention is: by steel pipe is applied to acting force, deformation extent according to application of force size and scaffolding steel pipe, accurately extrapolate the equivalent wall thickness of scaffolding steel pipe, the scaffolding steel pipe equivalence wall thickness measuring device the present invention relates to is simple in structure, detection method is easy to operate, automatically monitor the deformation data of application of force size and scaffolding steel pipe, avoided the error of artificial reading, measurement result accurately and reliably, efficiency is high, overcome existing contact slide calliper rule manual measurement complex operation, take time and effort, and dependence human eye detection, range estimation easily causes people's kopiopia for a long time, produce larger measuring error, the problem that accuracy rate is low, in addition, cost of the present invention is low, easy to use, simple to operate, also solves that existing steel pipe thickness measurement equipment cost is high, complex structure, carries the problem that inconvenience, execution conditions requirement are high, be not suitable for the measurement of scaffolding steel pipe thickness.
Accompanying drawing explanation
Fig. 1 is the facade structures schematic diagram of scaffolding steel pipe equivalence wall thickness measuring device of the present invention;
Fig. 2 is the Facad structure schematic diagram of scaffolding steel pipe equivalence wall thickness measuring device of the present invention;
Fig. 3 is the side structure schematic diagram of scaffolding steel pipe equivalence wall thickness measuring device of the present invention;
Fig. 4 is the inside annexation schematic diagram that the present invention loads detection part.
Reference numeral: 1-freely-supported steelframe, 11-support steel beam, 12-support otic placode, 2-loads detection part, 21-loading unit, 22-sensor, 221-power sensor, 222-displacement transducer, 23-data acquisition unit, 24-data processing unit, 25-result output unit, 3-scaffolding steel pipe to be measured, 4-scaffolding steel pipe reserved opening.
Embodiment
As shown in Figures 1 to 3, a kind of scaffolding steel pipe equivalence wall thickness measuring device, comprise and support the freely-supported steelframe 1 of scaffolding steel pipe to be measured and be connected to the loading detection part 2 on freely-supported steelframe 1, it is characterized in that: the main body of described freely-supported steelframe 1 is horizontal support steel beam 11, the both sides of described support steel beam 11 are respectively connected with vertical, vertical with a support steel beam support otic placode 12; On the plate face of described support otic placode 12, correspondence has scaffolding steel pipe reserved opening 4, and described scaffolding steel pipe 3 to be measured passes through scaffolding steel pipe reserved opening 4 cross-arms of both sides in the centre of freely-supported steelframe; Described loading detection part 2 comprises loading unit 21, sensor 22, data acquisition unit 23, data processing unit 24 and the result output unit 25 connecting in turn, the application of force termination of described loading unit 21 ends is by being positioned at the middle preformed hole of support steel beam vertically through after support steel beam 11, bottom is against on scaffolding steel pipe 3 to be measured directly carries out the application of force to scaffolding steel pipe to be measured, and the axis of described application of force termination and the axis of scaffolding steel pipe to be measured 3 are orthogonal to intersect; Described sensor 22 comprises power sensor 221 and displacement transducer 222.The shape of described support otic placode 12 can be square plate or up-narrow and down-wide trapezoidal plate.Described loading unit 21 can be to utilize screw mandrel or small-scale liquid cylinder pressure artificial or that electric pump (as miniature electric oil pump) starts, described power sensor 221 is embedded in the bottom of screw mandrel or small-scale liquid cylinder pressure force side head, described displacement transducer 222 is fixed on the side of application of force termination, described power sensor 221 and displacement transducer 222 be direct contact measured scaffolding steel pipe 3 all, and power sensor 221 and displacement transducer 222 be connection data collector 23, data processing unit 24 and result output unit 25 in turn below.
Utilize the scaffolding steel pipe equivalence wall thickness measuring method that scaffolding steel pipe equivalence wall thickness measuring device carries out described in claim 1～3 any one, it is characterized in that: measuring process is as follows:
Step 1, install freely-supported steelframe 1: freely-supported steelframe 1 is steadily placed on the ground, two of scaffolding steel pipe 3 to be measured is inserted respectively in two scaffolding steel pipe reserved opening 4 that support on otic placode and placed between two parties and fixedly secure, and now scaffolding steel pipe 3 to be measured is parallel with support steel beam 11;
The start preheating of step 3, equipment: by the preheating of starting shooting of sensor (22) and data acquisition unit (23), preheating time 30s;
Step 5, data acquisition: steel pipe amount of deflection when data acquisition unit collection applies power
size with power F;
Step 6, data processing and calculating: calculate the equivalent wall thickness of scaffolding steel pipe to be measured, according to the mechanics principle of freely-supported steelframe, by formula
can derive the equivalent wall thickness formula of steel pipe,
, wherein, the external diameter that D is steel pipe,
for the length of scaffolding steel pipe to be measured, E is steel pipe steel elastic modulus, and F is the power that steel pipe is subject to,
steel pipe amount of deflection (deduction is at the deflection of power F effect lower support frame) for steel pipe;
Step 7, Output rusults: the equivalent wall thickness value of exporting scaffolding steel pipe to be measured.
In order to make result more accurate, replication 3 times, gets the mean value of all equivalent wall thickness value measurement results, and as final equivalent wall thickness, so far, mensuration completes.
Claims (6)
1. a scaffolding steel pipe equivalence wall thickness measuring device, comprises and supports the freely-supported steelframe (1) of scaffolding steel pipe to be measured and be connected to the loading detection part (2) on freely-supported steelframe (1), it is characterized in that:
The main body of described freely-supported steelframe (1) is horizontal support steel beam (11), and the both sides of described support steel beam (11) are respectively connected with vertical, vertical with a support steel beam support otic placode (12); On the plate face of described support otic placode (12), correspondence has scaffolding steel pipe reserved opening (4), and described scaffolding steel pipe to be measured (3) passes through scaffolding steel pipe reserved opening (4) cross-arm of both sides in the centre of freely-supported steelframe;
Described loading detection part (2) comprises loading unit (21), sensor (22), data acquisition unit (23), data processing unit (24) and the result output unit (25) connecting in turn, the application of force termination of described loading unit (21) end is by being positioned at the middle preformed hole of support steel beam vertically through after support steel beam (11), bottom is against on scaffolding steel pipe to be measured (3) directly carries out the application of force to scaffolding steel pipe to be measured, orthogonal the intersecting of axis of the axis of described application of force termination and scaffolding steel pipe to be measured (3); Described sensor (22) is connected on the application of force termination of loading unit (21) end, directly contacts with scaffolding steel pipe to be measured (3), comprises power sensor (221) and displacement transducer (222).
2. a kind of scaffolding steel pipe equivalence wall thickness measuring device according to claim 1, is characterized in that: the side's of being shaped as plate of described support otic placode (12) or up-narrow and down-wide trapezoidal plate.
3. a kind of scaffolding steel pipe equivalence wall thickness measuring device according to claim 1, is characterized in that: described loading unit (21) is screw mandrel or the small-scale liquid cylinder pressure that utilizes artificial or power start.
4. a kind of scaffolding steel pipe equivalence wall thickness measuring device according to claim 1, it is characterized in that: described power sensor (221) is embedded in the bottom of screw mandrel or small-scale liquid cylinder pressure force side head, described displacement transducer (222) is fixed on the side of application of force termination, and described power sensor (221) and displacement transducer (222) be direct contact measured scaffolding steel pipe (3) all.
5. a scaffolding steel pipe equivalence wall thickness measuring method of carrying out with scaffolding steel pipe equivalence wall thickness measuring device described in claim 1～4 any one, is characterized in that: measuring process is as follows:
Step 1, install freely-supported steelframe (1): freely-supported steelframe (1) is steadily placed on the ground, two of scaffolding steel pipe to be measured (3) is inserted respectively in two scaffolding steel pipe reserved opening (4) that support on otic placode and placed between two parties and fixedly secure, and now scaffolding steel pipe to be measured (3) is parallel with support steel beam (11);
Step 2, install to load detection part (2): by the application of force termination of loading unit (21) end by being positioned at the preformed hole in the middle of support steel beam, from top to bottom vertically through after support steel beam (11), bottom is against the center of scaffolding steel pipe to be measured (3), make that the axis of application of force termination and the axis of scaffolding steel pipe to be measured (3) are orthogonal to intersect, then the associated components of connecting sensor (22), data acquisition unit (23), data processing unit (24) and result output unit (25) in turn;
Step 3, start preheating: by the preheating of starting shooting of sensor (22) and data acquisition unit (23), be no less than 30s preheating time;
Step 4, scaffolding steel pipe to be measured (3) is applied to power: start-up loading unit (21), by the application of force termination of its end, to treat and survey scaffolding steel pipe (3) and apply concentrated force, application of force process guarantees that the Deformation control of steel pipe is within steel beam elastic deformation range;
Step 5, data acquisition: the steel pipe amount of deflection while utilizing sensor and data acquisition unit collection to apply power
size with power F;
Step 6, data processing and calculating: calculate the equivalent wall thickness of scaffolding steel pipe to be measured, according to the mechanics principle of freely-supported steelframe, can derive the equivalent wall thickness formula of steel pipe,
, wherein, the external diameter that D is steel pipe, F is the power that steel pipe is subject to,
for the length of scaffolding steel pipe to be measured, E is steel pipe steel elastic modulus,
steel pipe amount of deflection for steel pipe;
Step 7, Output rusults: export the equivalent wall thickness value of scaffolding steel pipe to be measured, so far, mensuration completes.
6. a kind of scaffolding steel pipe equivalence wall thickness measuring method according to claim 5, is characterized in that: repeating step one arrives step 7 3～5 times, gets the mean value of all measurement results, as the equivalent wall thickness of final scaffolding steel pipe to be measured.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410009696.4A CN103759690B (en) | 2014-01-09 | 2014-01-09 | A kind of scaffolding steel pipe equivalence wall thickness measuring device and measuring method thereof |
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| CN201410009696.4A CN103759690B (en) | 2014-01-09 | 2014-01-09 | A kind of scaffolding steel pipe equivalence wall thickness measuring device and measuring method thereof |
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| CN103759690A true CN103759690A (en) | 2014-04-30 |
| CN103759690B CN103759690B (en) | 2016-05-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106643436A (en) * | 2016-12-29 | 2017-05-10 | 中国石油天然气集团公司 | Device and method for measuring full-length straightness of steel pipe |
| CN113865537A (en) * | 2021-11-30 | 2021-12-31 | 中国核工业中原建设有限公司 | Device and method for measuring equivalent wall thickness of steel pipe of assembled scaffold |
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2014
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| CN101395460A (en) * | 2006-03-03 | 2009-03-25 | 芙罗服务管理公司 | Load measurement method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643436A (en) * | 2016-12-29 | 2017-05-10 | 中国石油天然气集团公司 | Device and method for measuring full-length straightness of steel pipe |
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| CN113865537A (en) * | 2021-11-30 | 2021-12-31 | 中国核工业中原建设有限公司 | Device and method for measuring equivalent wall thickness of steel pipe of assembled scaffold |
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| CN103759690B (en) | 2016-05-11 |
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