CN102564861A - Dynamic elasticity modulus measuring device of concrete - Google Patents
Dynamic elasticity modulus measuring device of concrete Download PDFInfo
- Publication number
- CN102564861A CN102564861A CN2010106078463A CN201010607846A CN102564861A CN 102564861 A CN102564861 A CN 102564861A CN 2010106078463 A CN2010106078463 A CN 2010106078463A CN 201010607846 A CN201010607846 A CN 201010607846A CN 102564861 A CN102564861 A CN 102564861A
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- test specimen
- concrete
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- face
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- 238000012360 testing method Methods 0.000 claims abstract description 36
- 239000000523 sample Substances 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000010257 thawing Methods 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Concrete with favorable performance is a reliable basis of engineering quality of all constructions. The invention relates to a dynamic elasticity modulus measuring device of concrete, aiming at measuring the freezing and thawing property of the concrete rapidly, safely and reliably. The dynamic elasticity modulus measuring device of the concrete comprises a bottom support, a support plate, a guide rail, a fixed support and a positioning thimble, wherein the guide rail is arranged on the central position in the bottom support, the support plate is fixed at the upper part of the bottom support, the left end of the upper part of the support plate is provided with the fixed frame, and the positioning thimble is arranged in the central position of the fixed frame. According to the dynamic electricity modulus measuring device of the concrete, an excitation sensor can be accurately placed according to the length of a test piece, the left end of the upper part of the support plate is provided with the fixed frame, the positioning thimble is arranged at the central part of the fixed frame, and the positioning thimble is horizontally installed at the middle position of the end surface of the test pipe and vertical to the end surface of the test piece, and does not apply act force to the test piece. The central position of the support plate is provided with a slot hole with the width of 6mm and the length of 410mm, and the slot hole is respectively 5mm longer than two ends of the test piece. The excitation sensor and a probe for receiving the sensor have certain elasticity; and when the test piece is placed on the excitation sensor, the sensor is compressed due to the pressure action by means of the gravity of the test piece, and the probe and the test piece are favorable in contact when the sensor is compressed about 1-2mm.
Description
Technical field
The present invention's " concrete dynamic modulus of elasticity measurement mechanism " is the indispensable equipment that concrete is moved and tested, and relates to great national economy fields such as construction work, science of bridge building, bridge, railway, dykes and dams.
Background technology
Fast and safely reliable measuring concrete Freeze-thawing Characteristics is the object of the invention.
The domestic and international at present dynamic modulus of elasticity measuring method in usefulness has side method and overhead method, the shortcoming of having nothing in common with each other.
The concrete dynamic modulus of elasticity measurement mechanism of the present invention's design is that bearing accuracy is high, effectively reduces the personal error of original measuring method with the position dependence mold position of sensor.
Summary of the invention
Concrete dynamic modulus of elasticity measurement mechanism is by collet, back up pad, guide rail; Five parts of fixed mount and location thimble constitute, and guide rail is installed in the central part in the collet, and back up pad is fixed on collet top; Back up pad top left end mounting and fixing support, the central part installing and locating thimble of fixed mount.
Can accurately place stimulus sensor by apparatus of the present invention with test specimen length.
Back up pad top left end mounting and fixing support, the central part installing and locating thimble of fixed mount, location thimble level is installed in the centre position of test specimen end face, and is vertical with the end face of test specimen, and test specimen is not applied acting force.The central part of back up pad has wide 6mm, and the slotted hole of long 410mm respectively grows 5mm than test specimen two ends.
The probe of stimulus sensor and receiving sensor has certain elasticity, and in the time of above test specimen is placed on, the action of gravity of test specimen makes the sensor effect of being under pressure and compress that maintenance is popped one's head in and well contacted with test specimen when compress about 1-2mm.
Description of drawings
Fig. 1 has provided and has utilized concrete the move characteristic diagram of appearance measurement mechanism measurement of moving.
Fig. 2 provides the concrete appearance measurement mechanism sectional view of moving
Fig. 3 provides the concrete appearance measurement mechanism back up pad figure that moves
Embodiment
Shown in Figure 1, guide rail 2 has been installed in move collet 1 inside of appearance measurement mechanism of concrete, and guide rail 2 length are 420mm; Width is 40mm, highly is 10mm, guide rail 2 be fixed on test specimen 9 under the central part inner with collet 1; Distance between center line collet 1 side 60mm is apart from collet 1 right side 25mm.Stimulus sensor 3 is installed in through sensor stand 4 on the moving plate of guide rail, can be as required move left and right by hand, for the standard specimen of length 400mm, best position commonly used is apart from 235mm place, collet 1 right side.Receiving sensor 5 is installed on another moving plate of guide rail 2 through receiving sensor support 4; Adjusting position by hand; For the standard specimen of length 400mm, the optimum position is that it is identical that receiving sensor places apart from right side 3-5mm place effect apart from test specimen left end end face 3-5mm place.Guide rail confirms that by machining precision sensor can only move along center line at the center line of collet 1.
Back up pad 6 top left end mounting and fixing supports 8; The central part installing and locating thimble 7 of fixed mount 8; Confirm the test specimen placement location, guarantee receiving sensor and stimulus sensor position accurately, the back up pad scale test specimen position line; The center line of guaranteeing test specimen 9 aligns with the center line of collet 1, has guaranteed test specimen placement precision and has measured accuracy.
Fig. 2 has provided the concrete appearance measurement mechanism sectional view of moving, and has shown physical dimension.
Fig. 3 has provided the concrete appearance measurement mechanism back up pad figure that moves, and the thickness of back up pad is 5mm, and length 480mm, width are 120mm.There is groove the centre, wide 6mm, and long 410mm makes with corrosion resistant plate, is screwed on collet.
Method of application and step:
1. according to the length of test specimen, place the position of receiving sensor 5 and stimulus sensor 3.
2. test specimen is placed according to test specimen position line and location thimble;
3. open the appearance power supply of moving, begin to measure;
4. measure to finish and take off test specimen, powered-down.
Claims (6)
1. the characteristic of a kind " concrete dynamic modulus of elasticity measurement mechanism " is to comprise collet, back up pad; Slide rail, fixed mount constitutes with the location thimble, and slide rail is installed in the central part in the collet; Back up pad is fixed on collet top, back up pad top left end mounting and fixing support, the central part installing and locating thimble of fixed mount; Stimulus sensor is on slide rail; Can the probe of stimulus sensor be moved to position energized position with manual mode, the probe of accepting sensor is placed in the place apart from test specimen end face 1-5mm, can move to the optimum position with manual methods.
2. the characteristic of concrete dynamic modulus of elasticity measurement mechanism according to claim 1 is, when the test specimen standard length is 400mm, is optimal selection apart from test specimen end face 200mm with bottom central position apart from side 50mm, and the stimulus sensor probe placement is in this position.
3. the characteristic of concrete dynamic modulus of elasticity measurement mechanism according to claim 1 is; When the standard length of test specimen is 300mm; Apart from test specimen end face 150mm be optimal selection apart from the bottom central position of side 50mm, can the stimulus sensor probe be moved to this position with manual methods.
4. the characteristic of concrete dynamic modulus of elasticity measurement mechanism according to claim 1 is, is the optimum position of accepting sensor apart from test specimen end face 3-5mm with bottom apart from side 50mm place, accepts sensor probe usually and is placed on the position apart from end face 3mm.
5. the characteristic of concrete dynamic modulus of elasticity measurement mechanism according to claim 1 is that location thimble level is installed in the centre position of test specimen end face, and is vertical with the end face of test specimen, and test specimen is not applied acting force.
6. the characteristic of concrete dynamic modulus of elasticity measurement mechanism according to claim 1 is, the central part of back up pad has wide 6mm, and the slotted hole of long 410mm respectively grows 5mm than test specimen two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106078463A CN102564861A (en) | 2010-12-28 | 2010-12-28 | Dynamic elasticity modulus measuring device of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106078463A CN102564861A (en) | 2010-12-28 | 2010-12-28 | Dynamic elasticity modulus measuring device of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102564861A true CN102564861A (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106078463A Pending CN102564861A (en) | 2010-12-28 | 2010-12-28 | Dynamic elasticity modulus measuring device of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564861A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034596A (en) * | 2014-06-17 | 2014-09-10 | 盐城工学院 | Lever horizontal-pulling type concrete creep and elasticity modulus test device |
| CN109444037A (en) * | 2019-01-09 | 2019-03-08 | 中铁检验认证中心 | Concrete fast freeze-thaw and detection integration test machine |
| CN109709312A (en) * | 2018-12-10 | 2019-05-03 | 太原理工大学 | Wireless control concrete freeze-thaw machine |
| CN111623941A (en) * | 2020-05-07 | 2020-09-04 | 济南市市政工程设计研究院（集团）有限责任公司 | Civil engineering structure safety monitoring system |
-
2010
- 2010-12-28 CN CN2010106078463A patent/CN102564861A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034596A (en) * | 2014-06-17 | 2014-09-10 | 盐城工学院 | Lever horizontal-pulling type concrete creep and elasticity modulus test device |
| CN109709312A (en) * | 2018-12-10 | 2019-05-03 | 太原理工大学 | Wireless control concrete freeze-thaw machine |
| CN109709312B (en) * | 2018-12-10 | 2022-06-17 | 太原理工大学 | Wireless control concrete freeze-thaw machine |
| CN109444037A (en) * | 2019-01-09 | 2019-03-08 | 中铁检验认证中心 | Concrete fast freeze-thaw and detection integration test machine |
| CN109444037B (en) * | 2019-01-09 | 2024-03-22 | 中铁检验认证中心 | Concrete quick freezing thawing and detecting integrated testing machine |
| CN111623941A (en) * | 2020-05-07 | 2020-09-04 | 济南市市政工程设计研究院（集团）有限责任公司 | Civil engineering structure safety monitoring system |
| CN111623941B (en) * | 2020-05-07 | 2021-08-03 | 济南市市政工程设计研究院（集团）有限责任公司 | Civil engineering structure safety monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Zhongkehuishi Precision Instrument Manufacturing Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Zhongkehuishi Precision Instrument Manufacturing Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |