CN104880139A - Reinforcing steel bar inner arc radius measuring scale - Google Patents
Reinforcing steel bar inner arc radius measuring scale Download PDFInfo
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- CN104880139A CN104880139A CN201510272749.6A CN201510272749A CN104880139A CN 104880139 A CN104880139 A CN 104880139A CN 201510272749 A CN201510272749 A CN 201510272749A CN 104880139 A CN104880139 A CN 104880139A
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- measuring scale
- inner arc
- arc radius
- steel bar
- reinforcing steel
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a reinforcing steel bar inner arc radius measuring scale of a civil engineering construction site. The measuring scale comprises an arc elastic steel sheet and two steel rulers. Two ends of the arc steel sheet are in a straight shape. A middle segment is in an arc shape. A tail end of each ruler is provided with a control handle. A middle portion of each ruler is provided with a groove. The two rulers are connected through riveting bolt loose riveting. The rulers and the elastic steel sheet are connected through welding. According to a size of a reinforcing steel bar bending arc radius, the measuring scale of the invention has large, medium and small models. The measuring scale of the invention has characteristics that the structure is simple and operation is convenient. The measuring scale can be used for reinforcing steel bar inner arc radius measuring of the civil engineering construction site.
Description
Technical field
The invention belongs to engineering construction technology field, relate to a kind of survey instrument, bend inner arc radius for measuring the on-the-spot reinforcing bar finished product of Construction of Civil Engineering, whether inspection reaches related specifications requirement.
Background technology
Current relevant specification of country proposes series regulation to building engineering construction on-the-spot reinforcing bar inner arc radius, and construction market there is no effective testing tool to the detection of bar bending radius both at home and abroad, the common ruler inspection of general employing, measures inconvenient, error is large, and reliability is low.Add that some technician pay little attention to this, a lot of working-yard does not add detection to reinforcing bar inner arc radius.And the bending radius of reinforcing bar does not reach code requirement, then affect mechanical property and the anchoring requirement of reinforcing bar, there is potential safety hazard.Along with construction market Standardization Requirement, using effective survey instrument to bend inner arc radius to reinforcing bar finished product and detect, is necessary.
Summary of the invention
The defect that the present invention is directed in Construction of Civil Engineering reinforcing bar finished product detection technology provides a kind of bar bending inner arc radius measurement instrument.The present invention for achieving the above object, adopts following technical scheme: the present invention is bar bending inner arc radius measurement chi, comprises an arc elastic steel disc and two steel rulers.Arc steel plate two ends are straight shape, and interlude is arc; Ruler end installs joystick, and in the middle of ruler, fluting, is riveting with riveting bolt pine between two chis and connects; Ruler and elastic steel sheet welding link.It is 6 ~ 32mm that bar diameter is commonly used in construction work, according to " concrete structure engineering construction quality accident specification GB50204-2002 " and " national building standard design atlas 11G101 " serial atlas, radius is between 1.25d ~ 8d, radius measurement range is 7.5mm ~ 256mm, for measuring conveniently, ruler is designed to three specifications: small size: radius measurement range is R=5mm ~ 50mm respectively; Medium size: radius measurement range is R=50mm ~ 150mm respectively; Large size: radius measurement range is R=150mm ~ 300mm respectively.The present invention compared with prior art, has and measures more convenient, advantage more accurately.
Accompanying drawing explanation
Fig. 1: dip stick schematic three dimensional views (large size) of the present invention
Fig. 2: dip stick structural drawing (large size) of the present invention
Fig. 3: dip stick structural drawing (medium size) of the present invention
Fig. 4: dip stick structural drawing (trumpet) of the present invention
Fig. 5: the curved anchor structure in Vierendeel girder upper reinforcement end
Fig. 6: instrumentation plan of the present invention
Fig. 7: survey measurements (88mm).
Embodiment
Below in conjunction with example, the present invention is illustrated: example: 90 degree of inner arc radiuses (Fig. 5) when surveying the curved anchor of HRB400 Vierendeel girder upper reinforcement (d=22mm) side column.
Operation:
1, according to " national building standard design atlas 11G101-1 ", the inner arc radius of reinforcing bar is 4d, i.e. R=88mm, selects medium size ruler measurement;
2, by chi near inner arc, adjustment handle, makes dip stick outer arc and reinforcing bar inner arc identical (Fig. 6);
3, reading: R=88mm(Fig. 7).
Claims (1)
1. a Construction of Civil Engineering reinforcing bar inner arc radius measurement chi, comprises an arc elastic steel disc and two steel rulers, it is characterized in that: arc steel plate and two rulers adopt and are welded to connect; In the middle of ruler, fluting, is riveting with riveting bolt pine between two chis and connects; Ruler end installs joystick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272749.6A CN104880139A (en) | 2015-05-26 | 2015-05-26 | Reinforcing steel bar inner arc radius measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272749.6A CN104880139A (en) | 2015-05-26 | 2015-05-26 | Reinforcing steel bar inner arc radius measuring scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104880139A true CN104880139A (en) | 2015-09-02 |
Family
ID=53947731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510272749.6A Pending CN104880139A (en) | 2015-05-26 | 2015-05-26 | Reinforcing steel bar inner arc radius measuring scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104880139A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339929A (en) * | 2017-07-31 | 2017-11-10 | 南京中车浦镇城轨车辆有限责任公司 | Cable Bending Radius survey tool |
| CN108844430A (en) * | 2018-04-27 | 2018-11-20 | 北京汽车股份有限公司 | Fillet measuring device |
| CN108955494A (en) * | 2018-09-03 | 2018-12-07 | 武汉建工集团股份有限公司 | A kind of portable radian measuring instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60151501A (en) * | 1984-01-20 | 1985-08-09 | Mitsubishi Heavy Ind Ltd | Measuring instrument for radius of curvature |
| CN201225876Y (en) * | 2008-07-22 | 2009-04-22 | 鞍钢集团矿业公司 | Curved rule |
| CN202562413U (en) * | 2012-01-11 | 2012-11-28 | 王慧 | Measuring instrument for radius of arc |
| CN203940809U (en) * | 2014-06-26 | 2014-11-12 | 李建纲 | A kind of radius detection ruler |
-
2015
- 2015-05-26 CN CN201510272749.6A patent/CN104880139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60151501A (en) * | 1984-01-20 | 1985-08-09 | Mitsubishi Heavy Ind Ltd | Measuring instrument for radius of curvature |
| CN201225876Y (en) * | 2008-07-22 | 2009-04-22 | 鞍钢集团矿业公司 | Curved rule |
| CN202562413U (en) * | 2012-01-11 | 2012-11-28 | 王慧 | Measuring instrument for radius of arc |
| CN203940809U (en) * | 2014-06-26 | 2014-11-12 | 李建纲 | A kind of radius detection ruler |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339929A (en) * | 2017-07-31 | 2017-11-10 | 南京中车浦镇城轨车辆有限责任公司 | Cable Bending Radius survey tool |
| CN107339929B (en) * | 2017-07-31 | 2019-11-08 | 南京中车浦镇城轨车辆有限责任公司 | Cable Bending Radius measuring tool |
| CN108844430A (en) * | 2018-04-27 | 2018-11-20 | 北京汽车股份有限公司 | Fillet measuring device |
| CN108955494A (en) * | 2018-09-03 | 2018-12-07 | 武汉建工集团股份有限公司 | A kind of portable radian measuring instrument |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |