CN202794164U - Experiment device for measuring concrete swelling stress - Google Patents
Experiment device for measuring concrete swelling stress Download PDFInfo
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- CN202794164U CN202794164U CN 201220282320 CN201220282320U CN202794164U CN 202794164 U CN202794164 U CN 202794164U CN 201220282320 CN201220282320 CN 201220282320 CN 201220282320 U CN201220282320 U CN 201220282320U CN 202794164 U CN202794164 U CN 202794164U
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- screw rod
- girder steel
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- steel plate
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Abstract
The utility model discloses an experiment device for measuring concrete swelling stress. The two sides of a lower steel beam are respectively fixed at the lower ends of a screw rod; an upper steel beam and a steel plate cover the upper end of the screw rod; an elastic component is arranged between the upper steel beam and the steel plate by the screw rod; a gasket and an adjusting nut are fixed on the steel plate by the upper ends of the screw rod; a force adjusting screw rod is connected to the upper steel beam; an S-shaped force sensor is connected with the force adjusting screw rod; the middle of the upper end of the S-shaped force sensor and the lower end of the force adjusting screw rod form spherical hinge restriction; a wire is led out of the S-shaped force sensor to be connected with a force tester; a spherical hinge support is connected with the lower steel beam; and the lower end of the spherical hinge support and the upper end of the lower steel beam form the spherical hinge restriction. By the experiment device, a real environment can be simulated so as to measure the concrete swelling stress of the concrete under multiple factor actions of environment, load and the like; and the material used in the experiment device can be corrosion-resistant so as to ensure that the swelling stress can be measured for a long time under a corrosion environment.
Description
Technical field
The utility model belongs to civil engineering work sensing testing field, particularly a kind of experimental provision of measuring concrete expansion stress.
Background technology
The stress that produces in the concrete expansion process is the especially important parameter of the HPEC design of widespread use of Concrete Design, thereby the stress that produces in the Measurement accuracy concrete expansion process has important directive significance to the safety and durability of structure.Find through the literature search to prior art, Chinese patent application number is 201010100499.7, patent name: method for testing expansion/contraction stress of cement-based material, needing to carry out complicated theory before this invention is used calculates, 1 circle ring inner surface on its device need to be pasted foil gauge, workload is large, and simultaneously the size of annulus and the test block shape of building also are limited, and the material of annulus is also had strict requirement.The most important thing is this invention can not the Reality simulation environment under environment and load etc. become to measure concrete expanding stress under the factor coupling more.
The utility model content
The purpose of this utility model is to provide a kind of experimental provision that can measure concrete expansion stress under load and environmental factor coupling.
The technical solution that realizes the utility model purpose is:
A kind of experimental provision of measuring concrete expansion stress is characterized in that, comprises lower girder steel, screw rod, upper girder steel, elastic component, steel plate, pad, setting nut, accent power screw rod, S type power sensor, force tester, ball hinged support; Wherein, lower girder steel both sides are the standing screw lower end respectively, screw rod upper end cover has upper girder steel and steel plate, elastic component is arranged between upper girder steel and the steel plate by screw rod, pad and setting nut are fixed on the steel plate by the screw rod upper end, accent power screw rod is connected on the girder steel, S type power sensor is connected with the power of accent screw rod, S type power sensor upper center forms the ball pivot constraint with the power of accent screw rod lower end, S type power sensor is drawn wire and is connected force tester, ball hinged support is connected with lower girder steel, and ball hinged support lower end and lower girder steel upper end form the ball pivot constraint.
The utility model compared with prior art, its remarkable advantage: can Reality simulation under the environment concrete become to measure concrete expansion stress under the factor effect in environment and load etc. more; But all anticorrosions of experimental provision material have guaranteed to carry out for a long time measurement of differential expansion stress under corrosion environment.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of experimental provision of measuring concrete expansion stress of the utility model comprises lower girder steel 1, screw rod 2, upper girder steel 3, elastic component, steel plate 5, pad 6, setting nut 7, transfers power screw rod 8, S type power sensor 9, force tester 10, ball hinged support 12; Wherein: lower girder steel 1 both sides are standing screw 2 lower ends respectively, screw rod 2 upper ends cover has upper girder steel 3 and steel plate 5, elastic component is arranged between upper girder steel 3 and the steel plate 5 by screw rod 2, pad 6 and setting nut 7 are fixed on the steel plate 5 by screw rod 2 upper ends, accent power screw rod 8 is connected on the girder steel 3, S type power sensor 9 is connected with the power of accent screw rod 8, S type power sensor 9 upper center form the ball pivot constraint with the power of accent screw rod 8 lower ends, S type power sensor 9 is drawn wire and is connected force tester 10, ball hinged support 12 is connected with lower girder steel 1, and ball hinged support 12 lower ends and lower girder steel 1 upper end form the ball pivot constraint.
Have spherical groove in the middle of the described lower girder steel 1, form the ball pivot constraint with ball hinged support 12; But described S type power sensor 9 is the elasticity tension and compression in specific range, and its upper center has spherical groove, with the ball hinged support formation ball pivot constraint of the power of accent screw rod 8 lower ends, transfers power screw rod 8 fine-tuning; The elastic deformation of described elastic component 4 its materials is coordinated consistent with concrete test block expansion variation; Described lower girder steel 1, upper girder steel 3, screw rod 2, ball hinged support 12 are to adopt the special anticorrosive nickel chromium stainless steel to make, and elastic component 4 adopts the stainless steel Compress Spring, and steel plate 5 adopts stainless steel, all can anticorrosion.
As shown in Figure 1, the utility model comprises: lower girder steel 1, screw rod 2, upper girder steel 3, spring 4, steel plate 5, pad 6, setting nut 7, accent power screw rod 8, S type power sensor 9, force tester 10, concrete test block 11, ball hinged support 12.Wherein: lower girder steel 1 both sides are standing screw 2 lower ends respectively, with upper girder steel 3, spring 4 and steel plate 5 are by inferior screw rod 2 upper ends of being inserted in of priority, spring 4 is arranged between upper girder steel 3 and the steel plate 5 by screw rod 2, then pad 6 and setting nut 7 are fixed on the steel plate 5 by being inserted in the rotation of screw rod 2 upper ends, accent power screw rod 8 is connected on the girder steel 3, S type power sensor 9 is positioned between the concrete test block 11 of accent power screw rod 8 and maintenance moulding, S type power sensor upper center forms the ball pivot constraint with the power of accent screw rod 8 lower ends, S type power sensor 9 is drawn wire and is connected force tester 10, ball hinged support 12 is placed in concrete test block 11 lower ends, and ball hinged support 12 lower ends contact with lower girder steel 1 and form the ball pivot constraint.By fine setting accent power screw rod 8, make its lower end become the ball pivot constraint with S type power sensor 9 upper end circle hole shapes, treat that above each parts adjusting is complete, can regulate pad 6 and setting nut 7, to concrete test block 11 imposed loads, writing time, the initial testing timi requirement is counted from beginning to apply precompression, and the reading of record force tester 10 can obtain the U-t time curve, according to before on universal testing machine to the F-U calibrated and calculated of S type power sensor 9, both can record σ-t curve by conversion.The utility model is measured concrete expansion stress test device can be used for carrying out the concrete expansion stress measurement under load and environment coupled action.
Claims (5)
1. experimental provision of measuring concrete expansion stress, it is characterized in that, comprise lower girder steel (1), screw rod (2), upper girder steel (3), elastic component, steel plate (5), pad (6), setting nut (7), transfer power screw rod (8), S type power sensor (9), force tester (10), ball hinged support (12); Wherein: lower girder steel (1) both sides are standing screw (2) lower end respectively, screw rod (2) upper end cover has upper girder steel (3) and steel plate (5), elastic component is arranged between upper girder steel (3) and the steel plate (5) by screw rod (2), pad (6) and setting nut (7) are fixed on the steel plate (5) by screw rod (2) upper end, accent power screw rod (8) is connected on the girder steel (3), S type power sensor (9) is connected with transferring power screw rod (8), S type power sensor (9) upper center forms the ball pivot constraint with transferring power screw rod (8) lower end, S type power sensor (9) is drawn wire and is connected force tester (10), ball hinged support (12) is connected with lower girder steel (1), and ball hinged support (12) lower end and lower girder steel (1) upper end form the ball pivot constraint.
2. a kind of experimental provision of measuring concrete expansion stress as claimed in claim 1 is characterized in that having spherical groove in the middle of the described lower girder steel (1), forms the ball pivot constraint with ball hinged support 12.
3. a kind of experimental provision of measuring concrete expansion stress as claimed in claim 2, it is characterized in that described S type power sensor (9) but be the elasticity tension and compression in specific range, its upper center has spherical groove, form the ball pivot constraint with the ball hinged support of transferring power screw rod (8) lower end, transfer power screw rod (8) fine-tuning.
4. a kind of experimental provision of measuring concrete expansion stress as claimed in claim 3 is characterized in that the elastic deformation of described its material of elastic component is consistent with concrete test block expansion variation coordination.
5. a kind of experimental provision of measuring concrete expansion stress as claimed in claim 4, it is characterized in that described lower girder steel (1), upper girder steel (3), screw rod (2), ball hinged support (12) are to adopt the special anticorrosive nickel chromium stainless steel to make, elastic component adopts the stainless steel Compress Spring, and steel plate (5) adopts stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282320 CN202794164U (en) | 2012-06-15 | 2012-06-15 | Experiment device for measuring concrete swelling stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282320 CN202794164U (en) | 2012-06-15 | 2012-06-15 | Experiment device for measuring concrete swelling stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794164U true CN202794164U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282320 Expired - Fee Related CN202794164U (en) | 2012-06-15 | 2012-06-15 | Experiment device for measuring concrete swelling stress |
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| CN (1) | CN202794164U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017766A (en) * | 2016-07-01 | 2016-10-12 | 黄河勘测规划设计有限公司 | Multi-channel rock and soil expansion automatic test system |
| CN106289616A (en) * | 2016-10-13 | 2017-01-04 | 西南交通大学 | The adjustable Portable probe fixing device of ultrasonic measurement of stress system coupling pressure |
| CN106771097A (en) * | 2016-12-16 | 2017-05-31 | 中国建筑材料科学研究总院 | Concrete shrinkage and drying shrinkage pressure tester and test method |
| CN107607238A (en) * | 2017-08-25 | 2018-01-19 | 南京工业大学 | A kind of stress measurement device and measuring method |
| CN110542703A (en) * | 2019-10-14 | 2019-12-06 | 哈尔滨工业大学 | Device and method for monitoring thermal expansion stress and deformation of foam concrete in constraint state |
| CN111351602A (en) * | 2020-02-14 | 2020-06-30 | 广东省建筑科学研究院集团股份有限公司 | Method for measuring micro-expansion stress of cement-based material |
| CN114965876A (en) * | 2022-05-07 | 2022-08-30 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for testing expansion performance of expansion filling body |
-
2012
- 2012-06-15 CN CN 201220282320 patent/CN202794164U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017766A (en) * | 2016-07-01 | 2016-10-12 | 黄河勘测规划设计有限公司 | Multi-channel rock and soil expansion automatic test system |
| CN106289616A (en) * | 2016-10-13 | 2017-01-04 | 西南交通大学 | The adjustable Portable probe fixing device of ultrasonic measurement of stress system coupling pressure |
| CN106771097A (en) * | 2016-12-16 | 2017-05-31 | 中国建筑材料科学研究总院 | Concrete shrinkage and drying shrinkage pressure tester and test method |
| CN107607238A (en) * | 2017-08-25 | 2018-01-19 | 南京工业大学 | A kind of stress measurement device and measuring method |
| CN110542703A (en) * | 2019-10-14 | 2019-12-06 | 哈尔滨工业大学 | Device and method for monitoring thermal expansion stress and deformation of foam concrete in constraint state |
| CN111351602A (en) * | 2020-02-14 | 2020-06-30 | 广东省建筑科学研究院集团股份有限公司 | Method for measuring micro-expansion stress of cement-based material |
| CN111351602B (en) * | 2020-02-14 | 2022-05-24 | 广东省建筑科学研究院集团股份有限公司 | Method for measuring micro-expansion stress of cement-based material |
| CN114965876A (en) * | 2022-05-07 | 2022-08-30 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for testing expansion performance of expansion filling body |
| CN114965876B (en) * | 2022-05-07 | 2024-02-27 | 中钢集团马鞍山矿山研究总院股份有限公司 | Expansion performance test method for expansion filling body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |