CN104697867A - Concrete creeping tester - Google Patents
Concrete creeping tester Download PDFInfo
- Publication number
- CN104697867A CN104697867A CN201510106895.1A CN201510106895A CN104697867A CN 104697867 A CN104697867 A CN 104697867A CN 201510106895 A CN201510106895 A CN 201510106895A CN 104697867 A CN104697867 A CN 104697867A
- Authority
- CN
- China
- Prior art keywords
- concrete
- pad
- base plate
- pressure
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a concrete creeping tester. The concrete creeping tester comprises a testing frame, a support plate, a soaking container, a loading mechanism and a pressure micro-adjusting mechanism, wherein the support plate is arranged in the testing frame; the soaking container is arranged on the support plate and used for accommodating concrete specimens; the loading mechanism is used for exerting vertical downward pressure to the concrete specimens; the pressure micro-adjusting mechanism is arranged below the support plate and used for exerting upward support force to the support plate; the loading mechanism comprises a loading screw rod which is connected to the testing frame through screw threads and can spirally drive; the pressure micro-adjusting mechanism comprises a micro-adjusting baseboard and a spring; the micro-adjusting baseboard is arranged below the support plate, and can move along a vertical direction, and the height of the micro-adjusting baseboard can be locked; the spring is primarily between the micro-adjustable baseboard and the support plate.
Description
Technical field
The present invention relates to and testing concrete performance instrument field, be specifically related to a kind of concrete creep tester.
Background technology
Concrete creep is that the phenomenon that xoncrete structure distortion constantly increases in time appears in xoncrete structure under the effect of continuing load.Creep and cause the loss of prestress of prestressed reinforced concrete construction or increase the amount of deflection of long-span beams or cause (surpassing) high building structure to produce excessive vertical differential deformation.And in the prior art, there are two kinds of phenomenons, a kind of is to ensure that the pressure that test specimen is subject in process of the test is comparatively invariable, can not reflect the real force-bearing situation of xoncrete structure in building structure, can not close to the force-bearing situation simulating xoncrete structure; Another kind is that the load that test specimen concrete sample in process of the test can be made to receive is difficult to fine setting, makes test and debugging process very loaded down with trivial details, affects testing efficiency.
Therefore, for overcoming the above problems, need a kind of concrete creep instrument that can adjust pressure size while xoncrete structure is crept, make the concrete long-term behaviour measured by it and permanance more accurate, the pressure that simultaneously can be subject to concrete sample carries out trace adjustment, arrive accurate design load, to improve the concrete creep tester of testing efficiency.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, a kind of concrete creep instrument that can adjust pressure size while xoncrete structure is crept is provided, make the concrete long-term behaviour measured by it and permanance more accurate, the pressure that simultaneously can be subject to concrete sample carries out trace adjustment, arrive accurate design load, to improve the concrete creep tester of testing efficiency.
Concrete creep tester of the present invention, comprise testing jig, the back up pad be arranged in testing jig, be arranged in described back up pad for hold concrete sample soaking container, concrete sample is applied pressure straight down load maintainer and be arranged at the pressure micro-adjusting mechanism below back up pad, this back up pad being applied to upwards anchorage force; Described load maintainer comprises the loading screw rod being threaded connection and also can carrying out worm drive in described testing jig; Described pressure fine-adjustment device comprises and to be arranged at below back up pad and vertically move and the fine setting base plate one-level of lock height is arranged at the spring of finely tuning between base plate and back up pad;
Further, the column that described testing jig comprises top board, base plate and is fixed between described top board and base plate, described top board is fixed with and the thread bush loading screw rod and match, and described loading screw tip is provided with rotary handle;
Further, described base plate is fixed with guide spiro rod, described back up pad is provided with the via hole be slidably matched with guide spiro rod, and described fine setting base plate is provided with threaded hole and is coordinated with guide spiro rod by threaded hole;
Further, described fine setting base plate comprises the turbine with threaded central aperture, and described pressure micro-adjusting mechanism also comprises the worm screw coordinated with turbine;
Concrete creep tester of the present invention also comprises the concrete pressing plate be arranged at above concrete sample, and described concrete pressing plate end face is provided with and the ball recess loading screw rod lower end and coordinate;
Further, pressure transducer is provided with between described soaking container and back up pad.
The invention has the beneficial effects as follows: concrete creep tester of the present invention can make test specimen test under comparatively constant pressure, thus ensure measured by numerical value comparatively accurate, realize by force pressure micromatic setting the control accurate being carried in load pressure on test specimen simultaneously, thus enable the present invention according to the position adjusting lower platen in time accurately, to reach accurate design load, finally make test specimen can carry out performance test at constant pressure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention; As shown in the figure, concrete creep tester in the present embodiment, comprise testing jig, the back up pad 2 be arranged in testing jig, be arranged in described back up pad 2 for hold concrete sample 4 soaking container 6, concrete sample 4 is applied pressure straight down load maintainer and be arranged at the pressure micro-adjusting mechanism below back up pad 2, this back up pad 2 being applied to upwards anchorage force; Described load maintainer comprises the loading screw rod 8 being threaded connection and also can carrying out worm drive in described testing jig; Described pressure fine-adjustment device comprises and to be arranged at below back up pad 2 and vertically move and the fine setting base plate one-level of lock height is arranged at the spring 3 of finely tuning between base plate and back up pad 2, test specimen is tested under comparatively constant pressure, thus ensure measured by numerical value comparatively accurate, realize by force pressure micromatic setting the control accurate being carried in load pressure on test specimen simultaneously, thus enable the present invention according to the position adjusting lower platen in time accurately, to reach accurate design load, finally make test specimen can carry out performance test at constant pressure.
In the present embodiment, described testing jig comprises top board 10, base plate and is fixed on the column 11 between described top board 10 and base plate, described top board 10 is fixed with and the thread bush 7 loading screw rod 8 and match, described loading screw rod 8 top is provided with rotary handle 9, operating personnel rotates by driving rotary handle 9 thus loading screw rod 8 is rotated, carry out worm drive between screw rod and thread bush 7, thus loading screw rod 8 is moved straight down its lower end is loaded concrete event.
In the present embodiment, described base plate is fixed with guide spiro rod 1, described back up pad 2 is provided with the via hole be slidably matched with guide spiro rod 1, described fine setting base plate is provided with threaded hole and is coordinated with guide spiro rod 1 by threaded hole, rotate by driving fine setting base plate to regulate its height and position, thus change the decrement of spring 3, to change its anchorage force to back up pad 2, final realization is finely tuned the pressure of concrete event.
In the present embodiment, described fine setting base plate comprises the turbine with threaded central aperture, described pressure micro-adjusting mechanism also comprises the worm screw 12 coordinated with turbine, rotate by driving worm screw 12, thus realize turbine rotation to adjust the suffered on-load pressure of concrete in this world, owing to having the reduction gear ratio of increasing between turbine and worm 12, with this, operating personnel is made to be convenient to finely tune the loading force suffered by concrete sample 4.
Concrete creep tester of the present invention also comprises the concrete pressing plate 5 be arranged at above concrete sample 4, described concrete pressing plate 5 end face is provided with and the ball recess loading screw rod 8 lower end and coordinate, and utilizes concrete pressing plate 5 to ensure to apply uniform pressure to concrete sample 4 surface.
In the present embodiment, be provided with pressure transducer between described soaking container 6 and back up pad 2, operating personnel can regulate the pressure suffered by concrete sample 4 accurately by the numerical value observing pressure transducer.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a concrete creep tester, is characterized in that: comprise testing jig, the back up pad be arranged in testing jig, be arranged in described back up pad for hold concrete sample soaking container, concrete sample is applied pressure straight down load maintainer and be arranged at the pressure micro-adjusting mechanism below back up pad, this back up pad being applied to upwards anchorage force; Described load maintainer comprises the loading screw rod being threaded connection and also can carrying out worm drive in described testing jig; Described pressure fine-adjustment device comprises and to be arranged at below back up pad and vertically move and the fine setting base plate one-level of lock height is arranged at the spring of finely tuning between base plate and back up pad.
2. concrete creep tester according to claim 1, it is characterized in that: the column that described testing jig comprises top board, base plate and is fixed between described top board and base plate, described top board is fixed with and the thread bush loading screw rod and match, and described loading screw tip is provided with rotary handle.
3. concrete creep tester according to claim 2, it is characterized in that: described base plate is fixed with guide spiro rod, described back up pad is provided with the via hole be slidably matched with guide spiro rod, and described fine setting base plate is provided with threaded hole and is coordinated with guide spiro rod by threaded hole.
4. concrete creep tester according to claim 3, is characterized in that: described fine setting base plate comprises the turbine with threaded central aperture, and described pressure micro-adjusting mechanism also comprises the worm screw coordinated with turbine.
5. concrete creep tester according to claim 4, is characterized in that: also comprise the concrete pressing plate be arranged at above concrete sample, and described concrete pressing plate end face is provided with and the ball recess loading screw rod lower end and coordinate.
6. concrete creep tester according to claim 5, is characterized in that: be provided with pressure transducer between described soaking container and back up pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106895.1A CN104697867A (en) | 2015-03-11 | 2015-03-11 | Concrete creeping tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106895.1A CN104697867A (en) | 2015-03-11 | 2015-03-11 | Concrete creeping tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104697867A true CN104697867A (en) | 2015-06-10 |
Family
ID=53345222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106895.1A Pending CN104697867A (en) | 2015-03-11 | 2015-03-11 | Concrete creeping tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104697867A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424490A (en) * | 2015-12-23 | 2016-03-23 | 中国石油大学(北京) | Device and method for monitoring rupture process of shale hydrofracture |
| CN105510119A (en) * | 2016-01-07 | 2016-04-20 | 中国工程物理研究院总体工程研究所 | Adjustable bending tensile stress loading device |
| CN106644692A (en) * | 2016-12-15 | 2017-05-10 | 大连理工大学 | Test device for determining creep of concrete |
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| GB2584856A (en) * | 2019-06-17 | 2020-12-23 | Plastometrex Ltd | Indentation creep plastometry |
| CN113063662A (en) * | 2021-03-16 | 2021-07-02 | 沧州市建设工程质量服务中心 | Concrete filled steel tube creep testing device considering initial stress of steel tube |
| CN113959861A (en) * | 2021-09-30 | 2022-01-21 | 中国电建集团华东勘测设计研究院有限公司 | Rock testing device and method for thermal coupling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034921Y (en) * | 2007-04-27 | 2008-03-12 | 同济大学 | Concrete in compression slowly changing experiment tester |
| CN201780238U (en) * | 2010-09-03 | 2011-03-30 | 中国水电顾问集团昆明勘测设计研究院 | Creep apparatus for concrete subject to pressure |
| CN102235952A (en) * | 2010-04-30 | 2011-11-09 | 长江水利委员会长江科学院 | Concrete creep testing system |
| CN202599756U (en) * | 2012-04-12 | 2012-12-12 | 北京工业大学 | Concrete compression creep instrument |
| CN203616206U (en) * | 2013-12-02 | 2014-05-28 | 天津市港源试验仪器厂 | Concrete compression creep test system |
| CN204027929U (en) * | 2014-08-12 | 2014-12-17 | 内蒙古工业大学 | Concrete creep instrument |
| CN204630845U (en) * | 2015-03-11 | 2015-09-09 | 重庆工商职业学院 | Concrete creep tester |
-
2015
- 2015-03-11 CN CN201510106895.1A patent/CN104697867A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034921Y (en) * | 2007-04-27 | 2008-03-12 | 同济大学 | Concrete in compression slowly changing experiment tester |
| CN102235952A (en) * | 2010-04-30 | 2011-11-09 | 长江水利委员会长江科学院 | Concrete creep testing system |
| CN201780238U (en) * | 2010-09-03 | 2011-03-30 | 中国水电顾问集团昆明勘测设计研究院 | Creep apparatus for concrete subject to pressure |
| CN202599756U (en) * | 2012-04-12 | 2012-12-12 | 北京工业大学 | Concrete compression creep instrument |
| CN203616206U (en) * | 2013-12-02 | 2014-05-28 | 天津市港源试验仪器厂 | Concrete compression creep test system |
| CN204027929U (en) * | 2014-08-12 | 2014-12-17 | 内蒙古工业大学 | Concrete creep instrument |
| CN204630845U (en) * | 2015-03-11 | 2015-09-09 | 重庆工商职业学院 | Concrete creep tester |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424490A (en) * | 2015-12-23 | 2016-03-23 | 中国石油大学(北京) | Device and method for monitoring rupture process of shale hydrofracture |
| CN105510119A (en) * | 2016-01-07 | 2016-04-20 | 中国工程物理研究院总体工程研究所 | Adjustable bending tensile stress loading device |
| CN105510119B (en) * | 2016-01-07 | 2019-01-04 | 中国工程物理研究院总体工程研究所 | Adjustable bent-segment tensile stress loading device |
| CN106644692A (en) * | 2016-12-15 | 2017-05-10 | 大连理工大学 | Test device for determining creep of concrete |
| CN106644692B (en) * | 2016-12-15 | 2020-01-24 | 大连理工大学 | Device for determining concrete creep test |
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| CN107884268B (en) * | 2017-10-11 | 2019-10-11 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| GB2584856A (en) * | 2019-06-17 | 2020-12-23 | Plastometrex Ltd | Indentation creep plastometry |
| GB2584856B (en) * | 2019-06-17 | 2021-08-25 | Plastometrex Ltd | Indentation creep plastometry |
| CN113063662A (en) * | 2021-03-16 | 2021-07-02 | 沧州市建设工程质量服务中心 | Concrete filled steel tube creep testing device considering initial stress of steel tube |
| CN113959861A (en) * | 2021-09-30 | 2022-01-21 | 中国电建集团华东勘测设计研究院有限公司 | Rock testing device and method for thermal coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104697867A (en) | Concrete creeping tester | |
| KR20090003611A (en) | A creep tester equipment for precision load control | |
| US11821816B2 (en) | Test device for quasi zero stiffness isolator | |
| CN102221498B (en) | Bond strength testing apparatus with switchable backlash control | |
| CN107110751A (en) | Equipment for implementing bend test | |
| CN103353429B (en) | A kind of Simple test-piece fatigue tester | |
| CN102809508A (en) | Load positioning device for structural test | |
| CN112710537B (en) | In-situ micro-nano indentation/scratch test platform | |
| CN203811937U (en) | Test fixture | |
| CN105445101A (en) | Experiment clamp capable of being adjusted and aligned and used for determining tensile strength of rocks with splitting method and method for determining tensile strength of rocks | |
| CN103395090A (en) | Testing apparatus for mechanical grating ruling process | |
| CN106289745A (en) | Composite material plate spring high/low temperature fatigue and rolling capability testboard bay | |
| CN107179242B (en) | A kind of manual simplified true triaxil tester | |
| CN204630845U (en) | Concrete creep tester | |
| CN111398789A (en) | Probe card fine-tuning device, coupling device and method for photonic integrated chip test system | |
| CN205506564U (en) | Concrete creep loading device | |
| CN103760026A (en) | Loading device for laser-irradiated cylindrical shell test and experimental method | |
| CN105259037B (en) | Lifter body pressure test device | |
| CN201828547U (en) | Probe position adjusting device of ultrasonic surface defect detector | |
| CN104183453A (en) | Sample platform and microscope system | |
| CN102175132B (en) | Full-automatic thickness tester for geo-technical synthetic material | |
| CN207662730U (en) | A kind of large-tonnage is vertical to be stretched and compression universal test system | |
| CN103439477B (en) | Glass droop testing platform | |
| CN103837071B (en) | Bar displacement transducer angular surveying fixture | |
| CN113484155A (en) | Ultrathin film mechanical property measuring device and method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |