CN105588764B - The method and device of simplicity detection structural steel intensity - Google Patents
The method and device of simplicity detection structural steel intensity Download PDFInfo
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- CN105588764B CN105588764B CN201610049042.3A CN201610049042A CN105588764B CN 105588764 B CN105588764 B CN 105588764B CN 201610049042 A CN201610049042 A CN 201610049042A CN 105588764 B CN105588764 B CN 105588764B
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- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of method and device of easy detection structural steel intensity.The standard specimen of known strength qualification is carried out the detection of critical indicator by the present invention in detection device provided by the invention, to determine standard amount of deflection and normal loading, sample to be tested is tested using same method according to standard load, observe the deformation of sample to be tested and the relation of amount of deflection to be measured and standard amount of deflection, you can quickly judge whether the intensity of sample to be tested is qualified.Such mode need not quantify testing result i.e. can be achieved conclusion it is qualitative, greatly improve the detection efficiency and construction efficiency of live steel, be a kind of effective and rapid economic and practical detection method.
Description
Technical field
The present invention relates to detection technique field, especially a kind of method of easy detection structural steel intensity.
Background technology
It will usually use substantial amounts of steel for example various reinforcing bar, steel plate and shaped steel etc. in places such as construction sites, and these
Steel will usually can be used its mechanical properties test qualification rear, but due to there is no ready-made experiment detection on construction site
Equipment, thus scene steel to be checked cannot in time be detected and cause to delay the duration.
The intensity of structural steel refers to the ability that material resists fracture under external force, and the intensity of structural steel is material
The important indicator that must be measured in use.
The content of the invention
The purpose of the present invention is：A kind of method of easy detection structural steel intensity is provided, it can be to the strong of structural steel
Degree is quickly measured, and easy to operate, of low cost.
What the present invention was realized in：The method of simplicity detection structural steel intensity, the standard of known strength qualification is tried
Sample carries out the detection of critical indicator, places standard specimen horizontal cross, both ends are fixed, and are further applied load from the center, with true
Determine standard specimen and just reach standard amount of deflection Δ H caused by plastic deformation0And corresponding normal loading P0；By sample to be tested
Horizontal cross is placed, and both ends are fixed, and a standard pressure weight is suspended on to the middle part of sample to be tested, standard pressure weight using steel wire rope
Load be normal loading P0；Observe the deformed condition of sample to be tested：1）If sample to be tested is in normal loading P0Under plasticity does not occur
Deformation, and amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of the sample to be tested is qualified；2）If sample to be tested is in normal loading P0
Under generate brittle fracture, then illustrate that the intensity of the sample to be tested is unqualified；3）If sample to be tested is in normal loading P0Lower generation
Plastic deformation, illustrates that the intensity of the sample is unqualified.
The device of simplicity detection structural steel intensity, including stent, are equipped with connector, in the bottom of stent at the top of stent
Equipped with base, stent is fixed on base；Steel wire rope is additionally provided with, standard pressure weight is equipped with one end of steel wire rope.
Pallet is equipped with one end of the steel wire rope, standard pressure weight is positioned in pallet.Such structure is convenient at any time
Replacement standard presses the specification of weight, to adapt to the steel of different size.
The other end of the steel wire rope is buckle or hook structure.Steel wire rope can be quickly connected to by such structure
On sample to be tested.
Equally distributed adjustment hole is equipped with base, corresponding adjusting bolt is equipped with frame bottom.Such structure,
The spacing of energy adjusting bracket, to adapt to the detection of the steel of different length.
By adopting the above-described technical solution, compared with prior art, the standard specimen of the invention by known strength qualification
The detection of critical indicator is carried out in detection device provided by the invention, to determine standard amount of deflection and normal loading, according to standard
Load tests sample to be tested using same method, and the deformation and amount of deflection to be measured for observing sample to be tested are scratched with standard
The relation of degree, you can quickly judge whether the intensity of sample to be tested is qualified.Such mode need not quantify testing result
Realize that conclusion is qualitative, greatly improve the detection efficiency and construction efficiency of live steel, be a kind of effective and rapid economic and practical inspection
Survey method.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention.
Embodiment
The embodiment of the present invention：Simplicity detection structural steel intensity method, by the standard specimen of known strength qualification into
The detection of row critical indicator, places standard specimen horizontal cross, and both ends are fixed, and are further applied load from the center, to determine mark
Quasi- sample just reaches standard amount of deflection Δ H caused by plastic deformation0And corresponding normal loading P0；Sample to be tested is horizontal
It is laterally disposed, and both ends are fixed, and a standard pressure weight is suspended on to the middle part of sample to be tested using steel wire rope, standard presses the lotus of weight
Carry as normal loading P0；Observe the deformed condition of sample to be tested：1）If sample to be tested is in normal loading P0Under do not occur plasticity change
Shape, and amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of the sample to be tested is qualified；2）If sample to be tested is in normal loading P0Under
Brittle fracture is generated, then illustrates that the intensity of the sample to be tested is unqualified；3）If sample to be tested is in normal loading P0Under generate
Plastic deformation, illustrates that the intensity of the sample is unqualified.
The device of simplicity detection structural steel intensity, including stent 1, are equipped with connector 2, in stent 1 at the top of stent 1
Bottom is equipped with base 3, and on the base 3 equipped with equally distributed adjustment hole, corresponding adjusting bolt 7 is equipped with 1 bottom of stent, branch
Frame 1 is fixed on the base 3 by adjusting bolt 7；Steel wire rope 4 is additionally provided with, pallet 6 is equipped with one end of the steel wire rope 4, is marked
Quasi- pressure weight 5 is positioned in pallet 6, and the other end of steel wire rope 4 is buckle structure.
In the present embodiment, the effect of the connector 2 at the top of stent 1 is to fix sample to be tested 8, can stablize and quickly put
Put, connector can be designed as to a variety of structures that can quickly fix sample to be tested 8, such as notch as needed.
Applicant is in order to verify the technique effect of the present invention, and from Guizhou Shanghai elder brother's high ferro building site, scene has randomly selected 20
Steel, method using the present invention is detected this 20 steel, and records testing result；This 20 steel are used afterwards
Conventional mechanics properties testing method is detected, and records testing result, and the testing result of two methods is contrasted, two kinds of inspections
The conclusion that survey mode obtains is completely the same, and when the time used in scheme using the present invention is only 1 small, and use the prior art
Method detection time for 4 it is small when or so.
Claims (1)
- A kind of 1. method of easy detection structural steel intensity, it is characterised in that：The standard specimen of known strength qualification is carried out The detection of critical indicator, places standard specimen horizontal cross, and both ends are fixed, and are further applied load from the center, to determine standard Sample just reaches standard amount of deflection Δ H caused by plastic deformation0And corresponding normal loading P0；Sample to be tested is horizontal horizontal To placement, and both ends are fixed, and a standard pressure weight is suspended on to the middle part of sample to be tested using steel wire rope, and standard presses the load of weight For normal loading P0；Observe the deformed condition of sample to be tested：1) if sample to be tested is in normal loading P0Under be not plastically deformed, And amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of the sample to be tested is qualified；2) if sample to be tested is in normal loading P0Lower production Brittle fracture has been given birth to, then has illustrated that the intensity of the sample to be tested is unqualified；3) if sample to be tested is in normal loading P0Under generate modeling Deformation, illustrates that the intensity of the sample is unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049042.3A CN105588764B (en) | 2016-01-26 | 2016-01-26 | The method and device of simplicity detection structural steel intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049042.3A CN105588764B (en) | 2016-01-26 | 2016-01-26 | The method and device of simplicity detection structural steel intensity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105588764A CN105588764A (en) | 2016-05-18 |
| CN105588764B true CN105588764B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610049042.3A Expired - Fee Related CN105588764B (en) | 2016-01-26 | 2016-01-26 | The method and device of simplicity detection structural steel intensity |
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| CN (1) | CN105588764B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113063931A (en) * | 2021-03-22 | 2021-07-02 | 云南省建设投资控股集团有限公司 | Method for detecting raw materials used in concrete production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2444787A1 (en) * | 2010-10-22 | 2012-04-25 | Vilnius Gediminas Technical University | Method and device for bridge state evaluation using dynamic method |
| CN103954415A (en) * | 2014-04-21 | 2014-07-30 | 广西交通科学研究院 | Method for measuring deflection of dry bridge |
| CN204177672U (en) * | 2014-10-24 | 2015-02-25 | 中国石油天然气集团公司 | A kind of For Three Points Bending Specimen clamping device for fracture toughness test |
| CN205749146U (en) * | 2016-01-26 | 2016-11-30 | 贵州大学 | The device of easy detection structural steel intensity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005091171A (en) * | 2003-09-17 | 2005-04-07 | National Maritime Research Institute | Method and device for testing rubbing strength, and test piece therefor |
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2016
- 2016-01-26 CN CN201610049042.3A patent/CN105588764B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2444787A1 (en) * | 2010-10-22 | 2012-04-25 | Vilnius Gediminas Technical University | Method and device for bridge state evaluation using dynamic method |
| CN103954415A (en) * | 2014-04-21 | 2014-07-30 | 广西交通科学研究院 | Method for measuring deflection of dry bridge |
| CN204177672U (en) * | 2014-10-24 | 2015-02-25 | 中国石油天然气集团公司 | A kind of For Three Points Bending Specimen clamping device for fracture toughness test |
| CN205749146U (en) * | 2016-01-26 | 2016-11-30 | 贵州大学 | The device of easy detection structural steel intensity |
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| CN105588764A (en) | 2016-05-18 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Jie Inventor after: Zhu Shaoyan Inventor after: Yuan Chun Inventor after: Antecedent Inventor before: Sun Jie Inventor before: Zhang Pan Inventor before: Huang Bifang Inventor before: Antecedent Inventor before: Zhu Shaoyan Inventor before: Yuan Chun |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20220126 |