CN105588764A - Method and device for simply and conveniently detecting strength of building steel - Google Patents
Method and device for simply and conveniently detecting strength of building steel Download PDFInfo
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- CN105588764A CN105588764A CN201610049042.3A CN201610049042A CN105588764A CN 105588764 A CN105588764 A CN 105588764A CN 201610049042 A CN201610049042 A CN 201610049042A CN 105588764 A CN105588764 A CN 105588764A
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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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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a method and a device for simply and conveniently detecting strength of building steel. The method comprises steps as follows: a standard sample with qualified known strength is subjected to critical index detection on the detection device provided by the invention, and standard deflection and standard load are determined; a to-be-detected sample is detected with the same method according to the standard load, and whether the strength of the to-be-detected sample is qualified can be rapidly judged through observation of the deformation condition of the to-be-detected sample and a relationship of to-be-detected deflection and the standard deflection. According to the mode, conclusion determination can be realized without quantization of a detection result, the detection efficiency and the constriction efficiency of the steel in the site are greatly improved, and the detection method is fast, effective, economic and applicable.
Description
Technical field
The present invention relates to detection technique field, especially a kind of method of easy detection structural steel intensity.
Background technology
A large amount of steel all will be used conventionally as various reinforcing bars, steel plate and shaped steel etc. in place in construction site etc., and these steel can use after conventionally all will be qualified to its mechanical properties test, but owing to there is no ready-made experiment checkout equipment on construction site, thereby can not detect in time and cause delaying the duration scene steel to be checked.
The intensity of structural steel refers to that material resists the ability of fracture under external force, and the intensity of structural steel is the important indicator that material in use must be measured.
Summary of the invention
The object of the invention is: a kind of method of easy detection structural steel intensity is provided, and it can carry out Fast Measurement to the intensity of structural steel, and simple to operate, with low cost.
The present invention is achieved in that the method for easy detection structural steel intensity, standard specimen qualified known strength is carried out to the detection of critical indicator, standard specimen horizontal cross is placed, two ends are fixed, and load application from the center, the standard amount of deflection Δ H producing while just reaching plastic deformation with the sample that settles the standard0And corresponding normal loading P0; Sample to be tested horizontal cross is placed, and two ends fix, adopt steel wire rope to press weight to be suspended on the middle part of sample to be tested a standard, it is normal loading P that standard is pressed the load of weight0; Observe the deformation situation of sample to be tested: 1) if sample to be tested at normal loading P0Under there is not plastic deformation, and amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of this sample to be tested is qualified; 2) if sample to be tested at normal loading P0Under produced brittle fracture, illustrate that the intensity of this sample to be tested is defective; 3) if sample to be tested at normal loading P0Under produced moulding distortion, illustrate that the intensity of this sample is defective.
The device of easy detection structural steel intensity, comprises support, is provided with joint at the top of support, is provided with base in the bottom of support, and support is fixed on base; Separately be provided with steel wire rope, the standard that is provided with in one end of steel wire rope is pressed weight.
One end at described steel wire rope is provided with pallet, and standard presses weight to be positioned in pallet. The convenient standard of replacement at any time of such structure is pressed the specification of weight, to adapt to the steel of different size.
The other end of described steel wire rope is buckle or hook structure. Such structure can be connected to steel wire rope on sample to be tested fast.
On base, be provided with equally distributed adjustment hole, be provided with corresponding adjusting bolt in frame bottom. Such structure, can regulate the spacing of support, to adapt to the detection of steel of different length.
Owing to having adopted technique scheme, compared with prior art, the present invention carries out standard specimen qualified known strength the detection of critical indicator on checkout gear provided by the invention, with amount of deflection and the normal loading of settling the standard, adopt to use the same method according to standard load sample to be tested is tested, observe the deformation of sample to be tested and the relation of amount of deflection to be measured and standard amount of deflection, whether the intensity that can judge fast sample to be tested is qualified. It is qualitative that such mode can realize conclusion without quantification testing result, greatly improves detection efficiency and the efficiency of construction of on-the-spot steel, is a kind of effective and rapid economic and practical detection method.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present invention.
Detailed description of the invention
Embodiments of the invention: the method for easy detection structural steel intensity, standard specimen qualified known strength is carried out to the detection of critical indicator, standard specimen horizontal cross is placed, two ends are fixed, and load application from the center, the standard amount of deflection Δ H producing while just reaching plastic deformation with the sample that settles the standard0And corresponding normal loading P0; Sample to be tested horizontal cross is placed, and two ends fix, adopt steel wire rope to press weight to be suspended on the middle part of sample to be tested a standard, it is normal loading P that standard is pressed the load of weight0; Observe the deformation situation of sample to be tested: 1) if sample to be tested at normal loading P0Under there is not plastic deformation, and amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of this sample to be tested is qualified; 2) if sample to be tested at normal loading P0Under produced brittle fracture, illustrate that the intensity of this sample to be tested is defective; 3) if sample to be tested at normal loading P0Under produced moulding distortion, illustrate that the intensity of this sample is defective.
The device of easy detection structural steel intensity, comprises support 1, is provided with joint 2 at the top of support 1, be provided with base 3 in the bottom of support 1, on base 3, be provided with equally distributed adjustment hole, be provided with corresponding adjusting bolt 7 in support 1 bottom, support 1 is fixed on base 3 by adjusting bolt 7; Separately be provided with steel wire rope 4, be provided with pallet 6 in one end of described steel wire rope 4, standard presses weight 5 to be positioned in pallet 6, and the other end of steel wire rope 4 is buckle structure.
In the present embodiment, the effect of the joint 2 at support 1 top is to fix sample to be tested 8, can stablize fast and to place, and can be the multiple structure that can fix fast sample to be tested 8 as required by joint design, as notch etc.
Applicant is in order to verify technique effect of the present invention, and from elder brother's high ferro building site, Shanghai, Guizhou, 20 steel have been randomly drawed at scene, adopts method of the present invention to detect these 20 steel, and records testing result; Adopt conventional mechanical property detection method to detect these 20 steel afterwards, and record testing result, the testing result of two kinds of methods contrasts, the conclusion of two kinds of detection mode acquisitions is in full accord, be only 1 hour and adopt the solution of the present invention time used, and the time that adopts the method method of prior art to detect is about 4 hours.
Claims (5)
1. the method for an easy detection structural steel intensity, it is characterized in that: standard specimen qualified known strength is carried out to the detection of critical indicator, standard specimen horizontal cross is placed, two ends are fixed, and load application from the center, the standard amount of deflection Δ H producing while just reaching plastic deformation with the sample that settles the standard0And corresponding normal loading P0; Sample to be tested horizontal cross is placed, and two ends fix, adopt steel wire rope to press weight to be suspended on the middle part of sample to be tested a standard, it is normal loading P that standard is pressed the load of weight0; Observe the deformation situation of sample to be tested: 1) if sample to be tested at normal loading P0Under there is not plastic deformation, and amount of deflection Δ H to be measured is not more than Δ H0, illustrate that the intensity of this sample to be tested is qualified; 2) if sample to be tested at normal loading P0Under produced brittle fracture, illustrate that the intensity of this sample to be tested is defective; 3) if sample to be tested at normal loading P0Under produced moulding distortion, illustrate that the intensity of this sample is defective.
2. realize the device of the method for easy detection structural steel intensity as claimed in claim 1 for one kind, comprise support (1), it is characterized in that: be provided with joint (2) at the top of support (1), be provided with base (3) in the bottom of support (1), support (1) is fixed on base (3); Separately be provided with steel wire rope (4), the standard that is provided with in one end of steel wire rope (4) is pressed weight (5).
3. device according to claim 2, is characterized in that: be provided with pallet (6) in one end of described steel wire rope (4), standard presses weight (5) to be positioned in pallet (6).
4. according to the device described in claim 2 or 3, it is characterized in that: the other end of described steel wire rope (4) is buckle or hook structure.
5. device according to claim 2, is characterized in that: on base (3), be provided with equally distributed adjustment hole, be provided with corresponding adjusting bolt (7) in support (1) bottom.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105588764A true CN105588764A (en) | 2016-05-18 |
| CN105588764B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (5)
| 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 |
| 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 |
-
2016
- 2016-01-26 CN CN201610049042.3A patent/CN105588764B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN105588764B (en) | 2018-04-20 |
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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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Granted publication date: 20180420 Termination date: 20220126 |