CN105135983A - Reinforcing steel bar inner diameter measuring method - Google Patents
Reinforcing steel bar inner diameter measuring method Download PDFInfo
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- CN105135983A CN105135983A CN201510269881.1A CN201510269881A CN105135983A CN 105135983 A CN105135983 A CN 105135983A CN 201510269881 A CN201510269881 A CN 201510269881A CN 105135983 A CN105135983 A CN 105135983A
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- measuring method
- steel bar
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Abstract
The invention relates to a reinforcing steel bar inner diameter measuring method which is characterized by comprising the following steps: (1) using a cutter to cut off a plurality of small sections of samples in different positions of a reinforcing steel bar, wherein the cross sections of the samples are not deformed, and the cross section of each sample is perpendicular to the axis of the sample; (2) using a caliper to measure the distance A between the roots of two diagonal longitudinal ribs of the cross section of each sample and the distance B between transverse ribs at the two sides of the cross section of each sample; and (3) working out the mean value of A and B. The reinforcing steel bar inner diameter measuring method of the invention can accurately reflect data of the inner diameter of a reinforcing steel bar.
Description
Technical field
The present invention relates to a kind of measuring method of cylindrical object size with ribbing, be specifically related to a kind of measuring method of reinforcing bar internal diameter.
Background technology
The profile of conventional belt rib reinforcement is more special, usually cannot use the measuring method to cylinder section diameter.The i.e. method of " with in the plane of axes normal, with the mean value of two vertical direction measured values for diameter ".From GB/T1499.2-2007, Fig. 1 of 6.3.4 bar is known: " internal diameter " refers to the diameter of a circle not comprising longitudinal and transverse flank.Directly between cross rib, measure internal diameter with slide calliper rule, due to the existence of vertical rib, the data of different directions cannot be obtained.Therefore, it is not accurate enough for only between cross rib, measuring internal diameter with slide calliper rule.
Summary of the invention
The object of this invention is to provide a kind of measuring method of reinforcing bar internal diameter, the data of reinforcing bar internal diameter can be reflected more accurately.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A measuring method for reinforcing bar internal diameter, comprises the following steps:
(1) the diverse location cutting machine on reinforcing bar cuts some segment samples, and the cross section of sample is indeformable and ensure the axes normal of cross section and sample;
(2) with the distance A of the vertical rib root in two, diagonal angle of kind of calliper sample in cross section, and the distance B between the cross rib of measurement sample in cross section both sides;
(3) mean value of A and B is got.
Preferably, the length of described sample is 1 ~ 10cm.
Preferably, described cutting machine is metallographical cutter.
The invention has the beneficial effects as follows:
The measuring method of reinforcing bar internal diameter of the present invention, can reflect the data of reinforcing bar internal diameter more accurately.
Accompanying drawing explanation
Fig. 1 is the structural representation in inventive samples cross section.
In accompanying drawing, the list of parts representated by each label is as follows:
1, vertical rib, 2, cross rib, 3, cross section.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Most preferred embodiment of the present invention is such, as shown in Figure 1, a measuring method for reinforcing bar internal diameter, comprises step: (1) diverse location cutting machine on reinforcing bar cuts some segment samples, and the cross section 3 of sample is indeformable and ensure the axes normal of cross section 3 and sample; (2) with the distance A at vertical rib 1 root in two, the diagonal angle (as arrow indicating section in Fig. 1) of kind of calliper sample in cross section 3, and the distance B between the cross rib 2 of measurement sample in cross section 3 both sides; (3) mean value of A and B is got.Because cross rib 2 and vertical rib 1 are non-intersect, the root of vertical rib 1 is the place of the flexible mistake of internal diameter, so the distance between the present invention's two vertical rib 1 roots taking directly to measure diagonal angle, cross section 3.
The length of described sample is 1 ~ 10cm.Described cutting machine is metallographical cutter, and metallographical cutter can ensure that the cross section 3 of sample is indeformable and can also ensure cross section 3 and axes normal.
The measuring method of reinforcing bar internal diameter of the present invention, can reflect the True Data of reinforcing bar internal diameter more accurately.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a measuring method for reinforcing bar internal diameter, is characterized in that, comprises the following steps:
(1) the diverse location cutting machine on reinforcing bar is cut into the sample of some segments, and the cross section of sample is indeformable and ensure the axes normal of cross section and sample;
(2) with the distance A of the vertical rib root in two, diagonal angle of kind of calliper sample in cross section, and the distance B between the cross rib of measurement sample in cross section both sides;
(3) mean value of A and B is got.
2. the measuring method of reinforcing bar internal diameter according to claim 1, is characterized in that: the length of described sample is 1 ~ 10cm.
3. the measuring method of reinforcing bar internal diameter according to claim 1, is characterized in that: described cutting machine is metallographical cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269881.1A CN105135983A (en) | 2015-05-25 | 2015-05-25 | Reinforcing steel bar inner diameter measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269881.1A CN105135983A (en) | 2015-05-25 | 2015-05-25 | Reinforcing steel bar inner diameter measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105135983A true CN105135983A (en) | 2015-12-09 |
Family
ID=54721425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269881.1A Pending CN105135983A (en) | 2015-05-25 | 2015-05-25 | Reinforcing steel bar inner diameter measuring method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105135983A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09311035A (en) * | 1996-05-23 | 1997-12-02 | Nissan Motor Co Ltd | Three-dimensional hole shape measuring apparatus with small diameter hole measuring and correcting function |
| CN201780083U (en) * | 2010-05-21 | 2011-03-30 | 宝山钢铁股份有限公司 | Measuring tool for measuring diameter limiting value and ellipticity ratio of steel pipe |
| CN104296711A (en) * | 2014-10-21 | 2015-01-21 | 贵州航天计量测试技术研究所 | Calibration device for cover protectometer |
| CN204329857U (en) * | 2015-01-12 | 2015-05-13 | 马志华 | Reinforcing bar scene checks chi fast |
-
2015
- 2015-05-25 CN CN201510269881.1A patent/CN105135983A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09311035A (en) * | 1996-05-23 | 1997-12-02 | Nissan Motor Co Ltd | Three-dimensional hole shape measuring apparatus with small diameter hole measuring and correcting function |
| CN201780083U (en) * | 2010-05-21 | 2011-03-30 | 宝山钢铁股份有限公司 | Measuring tool for measuring diameter limiting value and ellipticity ratio of steel pipe |
| CN104296711A (en) * | 2014-10-21 | 2015-01-21 | 贵州航天计量测试技术研究所 | Calibration device for cover protectometer |
| CN204329857U (en) * | 2015-01-12 | 2015-05-13 | 马志华 | Reinforcing bar scene checks chi fast |
Non-Patent Citations (1)
| Title |
|---|
| 刘文军: "关于带肋钢筋尺寸测量问题的几点讨论", 《百度文库》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |