CN107727522A - A kind of device based on hardness method measurement steel strength - Google Patents
A kind of device based on hardness method measurement steel strength Download PDFInfo
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- CN107727522A CN107727522A CN201710889344.6A CN201710889344A CN107727522A CN 107727522 A CN107727522 A CN 107727522A CN 201710889344 A CN201710889344 A CN 201710889344A CN 107727522 A CN107727522 A CN 107727522A
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- hardness
- test
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- roughness
- module
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 116
- 230000003746 surface roughness Effects 0.000 claims abstract description 23
- 230000008676 import Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 27
- 238000001514 detection method Methods 0.000 description 18
- 230000003014 reinforcing effect Effects 0.000 description 12
- 238000005070 sampling Methods 0.000 description 10
- 239000004567 concrete Substances 0.000 description 8
- 238000007689 inspection Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000007542 hardness measurement Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013486 operation strategy Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
Abstract
A kind of device based on hardness method measurement steel strength, roughness test sensor is tested steel surface roughness, and test result is sent to controller module, controller module is provided with roughness reference value, and controller module compared with roughness reference value by judging whether to polish or carrying out hardness test test result again；Hardness test sensor carries out hardness test to steel, and hardness test result is sent to controller module, controller module is provided with hardness and intensity function relational expression, and controller module is analyzed hardness test result and the intensity level of steel is conversed by hardness and intensity function relation.Surface roughness test is integrated in same device by the present apparatus with hardness test, and is controlled by controller module, significantly reduces influence of the surface roughness to hardness test result, and test process is simply, easily and fast.
Description
Technical field
The present invention relates to a kind of device based on hardness method measurement steel strength in field of civil engineering.
Background technology
In building structure inspection work,《Standard for reliability evaluation of civil buildings》Advised in the 5.2nd article of GB50292-2015
It is fixed, it is determined that during concrete component safety grades, should by bearing capacity, the displacement for constructing, being unsuitable for carrying or deformation, crack or
Four inspection projects such as other damages, each grade by inspection component is evaluated respectively, and the wherein minimum one-level in area is as the component
Safety grades.And the element bearing capacity of reinforced concrete member is mainly by concrete strength and reinforcement in concrete intensity
Influence, for it is regular design and construction and have in drawing situation detection project reinforced steel bar strength detection can be taken according to code requirement
It is sampled detection on a small quantity.Such as think the intensity of further verification reinforcing bar, then need to block reinforcing bar, obtained after drawing experiment
Its intensity level.And for lacking the old building of design drawing, block-extraction needed for the detection method of drawing using tradition
The number of components then can be more.But block sampling element bearing capacity can be produced it is certain influence, therefore can be to knot when sampling more
Structure total bearing capacity produces considerable influence.Built for historical sites, it, which can be produced, using above-mentioned detection means to estimate
Loss, in order to Conservation and Renovation substantially then cause bigger injury.Therefore in actually detected, there is an urgent need to one kind based on as far as possible
Under conditions of ensureing member integrity, securely and reliably, the method for conveniently detecting steel strength in concrete component.
On the other hand, the intensity of concrete can be measured its hardness by rebound method and calculate to obtain at present, with to material
Research is goed deep into and developed, and the intensity and its hardness of numerous scientific research personnel's discovery reinforcing bars are there is also certain functional relation, if
Know reinforcing bar hardness, then the intensity of reinforcing bar can be drawn by certain computational methods.Such as in the great meter of national Eleventh Five-Year Plan science and technology
In drawing, the woods peak of Tongji University by the regression analysis to experimental result,《Reinforcing bar is strong in hardness method detection history building
Degree》The relational expression that reinforced steel bar strength and lee ' hardness are commonly used in historical building is proposed in one text, its result can be used for history
The detection of reinforcing bar in building；In addition, be all the Guan little Jun of Tongji University, the hardness of reinforcing bar and its tension also by experimental study
The factor of relation and influence Hardness results between intensity, establishes the strength test curve of Leeb Hardness Tester, and examine at the scene
Test card, shows that methods described has degree of precision,《The intensity of reinforcing bar in hardness method Site Detection existing concrete structure》
It is the intensity of reinforcing bar in live non-damaged detcting concrete component in one text, there is provided a kind of practical technology.
Simultaneously as material hardness testing has larger association with material surface roughness, hardometer test material is being utilized
During expecting hardness, first experimental material surface roughness is generally required, and in the prior art, surface roughness detection and hardness
Test to be split type, surface roughness detects an independent device, the independent device of hardness test so that the intensity of reinforcing bar is surveyed
Try complex, cumbersome.
The content of the invention
The invention provides a kind of device based on hardness method measurement steel strength, which overcome present in background technology
Deficiency.The technical solution adopted for the present invention to solve the technical problems is：
A kind of device based on hardness method measurement steel strength, it is characterised in that：It include surface roughness test module,
Hardness test module and controller module, surface roughness test module include roughness test sensor, hardness test module
Including hardness test sensor, roughness test sensor is electrically connected with hardness test sensor with controller module；
Roughness test sensor is tested steel surface roughness, and test result is sent into controller mould
Block, controller module are provided with roughness reference value, and controller module is by the way that test result and roughness reference value are compared
Compared with to judge whether to polish again or carry out hardness test；
Hardness test sensor carries out hardness test to steel, and hardness test result is sent into controller module, controls
Device module processed is provided with hardness and intensity function relational expression, and controller module is analyzed hardness test result and passes through hardness
The intensity level of steel is conversed with intensity function relation.
Among one preferred embodiment, in addition to User-Defined Functions import modul, it is connected with controller module, when
When in controller module not comprising the hardness of steel is tested with intensity function relational expression, User-Defined Functions relation can be passed through
The mode of formula imports the functional relation in controller module.
Among one preferred embodiment, the device includes reference test bar, and the top ends of reference test bar are provided with the roughness test
Sensor, the center of reference test bar lower end offer guide groove, are additionally provided with resilience guide rod and elastic component, and resilience guide rod activity, which is installed in, to be led
Groove, elastic component both ends difference connection guide groove and resilience guide rod, the end of resilience guide rod are provided with the hardness test sensor.
Among one preferred embodiment, the device also includes main frame, and controller module is arranged in main frame, main frame and roughness
Connected between test sensor, hardness test sensor by flexible data line.
Among one preferred embodiment, main frame is additionally provided with LCDs and button, LCDs and button with control
Device module processed is connected.
Among one preferred embodiment, the main frame is additionally provided with USB interface.
From the above-mentioned description of this invention, compared with prior art, the present invention has the advantages that：
1st, surface roughness test is integrated in same device by the present apparatus with hardness test, and is entered by controller module
Row control, influence of the surface roughness to hardness test result is significantly reduced, and test process is simply, easily and fast.Together
When, tester can be reminded to test surface roughness, to prevent in Practical Project measurement process because component surface is coarse
Degree Ra is more than 2 microns so as to produce the Hardness Measurement Results of mistake.And block-hubbing compared to tradition, it is possible to achieve dropping
It is low to reinforcing bar and component damage degree under conditions of, be more convenient, the quick measure completed to reinforced steel bar strength.
2nd, in view of existing built-in function not in full conformity with the hardness of test member and the functional relation situation of its intensity,
Therefore User-Defined Functions import modul is also provided with, user can be by the USB interface of main frame side, by import modul and master
The controller module of machine is connected, and respective function is edited in computer corresponds to software and is imported.Specifically, as found built-in function
The material hardness being calculated and strength relationship and when having larger difference of material of measuring and monitoring the growth of standing timber, can use actual sampling and the present apparatus
The method being combined is tested, according to the result of sampling inspection of part, existing material hardness-strength of materials function is repaiied
Just, so as to realize using the present apparatus reduce tradition block-Hubbing method sampling quantity, reduce to component and structural damage.
So that the device is applied widely, can promote its operation strategies to steel construction, go along with sb. to guard him in the detection of the Steel materials such as steelframe, realize
In the case where running into and being not suitable for carrying out blocking the testing conditions of sampling, the detection to Steel material intensity is still smoothly completed.
3rd, roughness test sensor and hardness test sensor integration are on same reference test bar so that the device is light,
It is small to be easy to carry about with one, it can complete to be difficult to conventional method the strength of materials detection operation at the position of operation.In addition, adopt
Combined with the present apparatus with conventional method, both can greatly ensure the integrality of building element, and it is strong to detection structure
Degree provides a kind of new verification method.The present apparatus is used in actual strength of materials detection, detection work can be improved
Speed, it also ensure that the safety of detection work.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram for the device that steel strength is measured based on hardness method.
Fig. 2 is a kind of testing process schematic diagram for the device that steel strength is measured based on hardness method.
Embodiment
Below by way of embodiment, the invention will be further described.
Referring to Figures 1 and 2, a kind of device based on hardness method measurement steel strength, it includes surface roughness test mould
Block, hardness test module and controller module.
Surface roughness test module includes roughness test sensor, roughness test sensor and controller module phase
Electrical connection.Roughness test sensor 11 is tested steel surface roughness, and test result is sent into controller mould
Block, controller module are provided with roughness reference value, and controller module is by the way that test result and roughness reference value are compared
Compared with to judge whether to polish again or carry out hardness test.
In the present embodiment, the device includes reference test bar 10, and the top ends of reference test bar 10 are provided with the roughness test and passed
Sensor 11, the sensor are popped one's head in for Buddha's warrior attendant, and the probe is located at the center of the top ends of reference test bar 10.
Hardness test module includes hardness test sensor, and hardness test sensor is electrically connected with controller module.
In the present embodiment, the center of the lower end of reference test bar 10 offers guide groove 12, is additionally provided with resilience guide rod 13 and elastic component, returns
Play guide rod activity and be installed in guide groove, elastic component both ends difference connection guide groove 12 and resilience guide rod 13, the end of resilience guide rod 13 are set
It is equipped with the hardness test sensor.In the present embodiment, the hardness test sensor is lee ' hardness sensor.
Hardness test sensor carries out hardness test to steel, and hardness test result is sent into controller module, controls
Device module processed is provided with hardness and intensity function relational expression, and controller module is analyzed hardness test result and passes through hardness
The intensity level of steel is conversed with intensity function relation.
In the present embodiment, the device also includes User-Defined Functions import modul, and it is connected with controller module, when
When in controller module not comprising the hardness of steel is tested with intensity function relational expression, User-Defined Functions relation can be passed through
The mode of formula imports the functional relation in controller module.In view of existing built-in function not in full conformity with test member
Hardness and its intensity functional relation situation, therefore be also provided with User-Defined Functions import modul.Specifically, as in finding
Put the material hardness and strength relationship and when having larger difference of material of measuring and monitoring the growth of standing timber that function is calculated, can use actual sampling and
The method that present apparatus test is combined, according to the result of sampling inspection of part, enters to existing material hardness-strength of materials function
Row amendment, so as to realize using the present apparatus reduce tradition block-Hubbing method sampling quantity, reduce and component and structure broken
It is bad.So that the device is applied widely, can promote its operation strategies to steel construction, go along with sb. to guard him in the detection of the Steel materials such as steelframe,
Realize in the case where running into and being not suitable for carrying out blocking the testing conditions of sampling, still smoothly complete the detection to Steel material intensity.
In the present embodiment, the device also includes main frame 20, and controller module is arranged in main frame 20, main frame 20 and roughness
Connected between test sensor 11, hardness test sensor by flexible data line 30.
In the present embodiment, main frame 20 is additionally provided with LCDs 21 and button 22, and LCDs 21 and button 22 are equal
It is connected with controller module.
In the present embodiment, the main frame 20 is additionally provided with USB interface 23.User can by the USB interface, by user from
Defined function import modul is connected with the controller module of main frame, and respective function is edited in computer corresponds to software and is imported.
When specifically used, first rebar surface in required test concrete component, or steel member material surface are polished
It is smooth, test surfaces surface flatness is met hardometer test request.
Handheld test bar 10, the Buddha's warrior attendant of surface rough 11 is popped one's head in and contacted with surveyed region surface.It is main
The controller module of machine can be then analyzed incoming surface roughness data, if material surface roughness test result is less than
Roughness reference value, meet hardness test requirement, then prompt user to carry out material hardness testing by liquid crystal display；If material
Surface roughness is more than roughness reference value, it is impossible to meets hardness test requirement, then prompts user to need to continue to polish to add
Work, hardness test is avoided to produce error result.
Component surface roughness to be tested meets after requiring, testing staff's handheld test bar 10, makes the bottom of resilience guide rod 13
Lee ' hardness sensor with meeting that the test material surface of roughness is contacted, by pressing keys 22 so that controller mould
Block control lee ' hardness sensor completes the rebound test to body surface, obtains the test data result of material surface hardness,
Suitable built-in hardness and intensity function relational expression and relevant parameter are selected by button 22 again, controller module passes through built-in
Material hardness and intensity function relational expression, calculate analysis and obtain the intensity of material, and pass through LCD display output.
The embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change that unsubstantiality is carried out to the present invention, the behavior for invading the scope of the present invention all should be belonged to.
Claims (6)
- A kind of 1. device based on hardness method measurement steel strength, it is characterised in that：It includes surface roughness test module, hard Degree test module and controller module, surface roughness test module include roughness test sensor, hardness test module bag Hardness test sensor is included, roughness test sensor is electrically connected with hardness test sensor with controller module；Roughness test sensor is tested steel surface roughness, and test result is sent into controller module, control Device module processed is provided with roughness reference value, and controller module is by the way that test result is sentenced compared with roughness reference value It is disconnected whether to be polished or carried out hardness test again；Hardness test sensor carries out hardness test to steel, and hardness test result is sent into controller module, controller Module is provided with hardness and intensity function relational expression, and controller module is analyzed hardness test result and by hardness and by force Degree functional relation converses the intensity level of steel.
- A kind of 2. device based on hardness method measurement steel strength as claimed in claim 1, it is characterised in that：Also include user SQL import modul, it is connected with controller module, when in controller module not comprising testing the hardness of steel During with intensity function relational expression, the functional relation can be imported into controller mould by way of User-Defined Functions relational expression In block.
- A kind of 3. device based on hardness method measurement steel strength as claimed in claim 1, it is characterised in that：The device includes Reference test bar, the top ends of reference test bar are provided with the roughness test sensor, and the center of reference test bar lower end offers guide groove, separately Provided with resilience guide rod and elastic component, resilience guide rod activity is installed in guide groove, elastic component both ends difference connection guide groove and resilience guide rod, The end of resilience guide rod is provided with the hardness test sensor.
- A kind of 4. device based on hardness method measurement steel strength as claimed in claim 3, it is characterised in that：The device also wraps Main frame is included, controller module is arranged in main frame, by soft between main frame and roughness test sensor, hardness test sensor Property data wire connection.
- A kind of 5. device based on hardness method measurement steel strength as claimed in claim 4, it is characterised in that：Main frame is also set up There are LCDs and button, LCDs is connected with button with controller module.
- A kind of 6. device based on hardness method measurement steel strength as claimed in claim 4, it is characterised in that：The main frame is also It is provided with USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710889344.6A CN107727522A (en) | 2017-09-27 | 2017-09-27 | A kind of device based on hardness method measurement steel strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710889344.6A CN107727522A (en) | 2017-09-27 | 2017-09-27 | A kind of device based on hardness method measurement steel strength |
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| CN107727522A true CN107727522A (en) | 2018-02-23 |
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| CN201710889344.6A Pending CN107727522A (en) | 2017-09-27 | 2017-09-27 | A kind of device based on hardness method measurement steel strength |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286604A (en) * | 2001-03-23 | 2002-10-03 | Nisshin Steel Co Ltd | Multiple-test-item continuous testing device for plate- shaped metallic material |
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| US20050087023A1 (en) * | 2002-01-18 | 2005-04-28 | Wolfgang Bohme | Device for low-vibration force measurement in rapid dynamic tensile experiments on material samples |
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-
2017
- 2017-09-27 CN CN201710889344.6A patent/CN107727522A/en active Pending
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|---|---|---|---|---|
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