CN208588633U - A kind of beams of concrete three point bending test device - Google Patents
A kind of beams of concrete three point bending test device Download PDFInfo
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- CN208588633U CN208588633U CN201821240905.6U CN201821240905U CN208588633U CN 208588633 U CN208588633 U CN 208588633U CN 201821240905 U CN201821240905 U CN 201821240905U CN 208588633 U CN208588633 U CN 208588633U
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- support
- concrete
- slide post
- beams
- point bending
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Abstract
A kind of beams of concrete three point bending test device, including pedestal, first slide post, second slide post, first support, second support, strain gauge, top pressing device, the pedestal further includes pedestal and locating slot, locating slot is fixedly mounted at the top of the base, pedestal is equipped with first sliding groove, the first slide post and the second slide post are slidably fitted on pedestal, the first support is fixedly installed at the top of first slide post, the second support is fixedly installed at the top of second slide post, first support is fixedly connected with one end of locating rod, second support is equipped with joist, the other end of locating rod is placed on joist, strain gauge is slidably fitted in locating rod.Using the above structure, realize it is easy to operate, suitable for the three point bending test of various sizes of concrete beam components, and loading position may be implemented, load span is adjusted flexibly, the measurement for being conducive to every displacement deformation is highly suitable for using in laboratory and engineering construction.
Description
Technical field
The utility model relates to concrete component experimental rig field, especially a kind of beams of concrete three point bending test dress
It sets.
Background technique
Detected in the lab often through the three point bending test of beams of concrete concrete material mechanical property and
Fragmentation parameters, and with this judge and estimate the stress and failure mode of concrete structure central sill.For being made in laboratory
With beams of concrete three point bending test device is obtained, five requirements should be met.First, experimental rig must be simple, easy to operate, and
And be conducive to the placement of concrete sample, installation and removal；Second, beams of concrete should not be hindered by testing device in loading procedure
Free Transform and vertical bending development, influence the Stability and dependability of test data；Third, experimental rig should apply to various
The concrete beam components of size；4th, experimental rig adjusts with being able to carry out freedom and flexibility, to meet different span-depth radios, load
The operating condition of test of position needs；5th, device should be conducive to the tests ginseng such as horizontal direction displacement, vertical deflection and aperture displacement
Several measurements.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of beams of concrete three point bending test devices, realize
It is easy to operate, suitable for the three point bending test of various sizes of concrete beam components, and loading position, load may be implemented
Span is adjusted flexibly, and is conducive to the measurement of every displacement deformation, is highly suitable for using in laboratory and engineering construction.
A kind of beams of concrete three-point bending that in order to solve the above technical problems, the technical scheme adopted by the utility model is:
Experimental rig, including pedestal, the first slide post, the second slide post, the first support, the second support, strain gauge, top pressing device,
The pedestal further includes pedestal and locating slot, and locating slot is fixedly mounted at the top of the base, and pedestal is equipped with first sliding groove, bottom
It is slidably fitted with the first slide post and the second slide post on seat, the first support is fixedly installed at the top of the first slide post, second is sliding
Dynamic column top is fixedly installed with the second support, and the first support is fixedly connected with one end of locating rod, and the second support is equipped with joist,
The other end of locating rod is placed on joist, and strain gauge is slidably fitted in locating rod.
In preferred scheme, it is movably installed with card beam on the locating slot, is equipped with rack gear at the top of locating slot.
In preferred scheme, semi-circular recesses are equipped in the middle part of the card beam, card beam bottom is equipped with rack gear.
In preferred scheme, first slide post further includes the first sliding block and column, and column is fixedly mounted on first
Slider top, the second slide post are identical as the first sliding rod structure.
In preferred scheme, first support includes support plate, wedge-shaped support and support spring, is fixed on support plate
Wedge-shaped support is installed, support spring is additionally provided on support plate, the second support is identical as the first seat structure.
In preferred scheme, the locating rod is equipped with second sliding slot, is additionally provided with scale at the top of locating rod.
In preferred scheme, the strain gauge further includes the second sliding block, connecting rod and deformation gauge, is set in connecting rod
There is the second sliding block, the both ends of connecting rod are equipped with deformation gauge.
In preferred scheme, the top pressing device further includes top pressing board, press support and top pressure spring, is fixed on top pressing board
Press support is installed, is additionally provided with top pressure spring on top pressing board.
A kind of beams of concrete three point bending test device provided by the utility model has by using above structure
Below the utility model has the advantages that
(1) it is suitable for the concrete beam components of various sizes；
(2) the operating condition of test needs of different span-depth radios, loading position are met；
(3) measurement of the test parameters such as horizontal displacement, vertical deflection and aperture displacement is facilitated；
(4) it avoids to the beams of concrete obstruction that in test Free Transform and vertical bending develop, ensure that test number
According to stability, reliability and accuracy；
(5) whole device structure is simple, facilitates operation, practical.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the base construction schematic diagram of the utility model.
Fig. 3 is the slide post structural schematic diagram of the utility model.
Fig. 4 is the card beam structural schematic diagram of the utility model.
Fig. 5 is first bearing structure illustration of the utility model.
Fig. 6 is second bearing structure illustration of the utility model.
Fig. 7 is the strain gauge structural schematic diagram of the utility model.
Fig. 8 is the top pressing device structural schematic diagram of the utility model
In figure: pedestal 1, first sliding groove 101, locating slot 2, the first slide post 3, the first sliding block 301, column 302, second is sliding
Dynamic column 4, the first support 5, support plate 501, wedge-shaped support 502, support spring 503, the second support 6, strain gauge 7, second
Sliding block 701, connecting rod 702, deformation gauge 703, top pressing device 8, top pressing board 801 press support 802, top pressure spring 803, locating rod
9, second sliding slot 901, scale 902, card beam 10, joist 11.
Specific embodiment
Embodiment 1:
As in Fig. 1-8, a kind of beams of concrete three point bending test device, including pedestal, the first slide post 3, second are slided
Column 4, the first support 5, the second support 6, strain gauge 7, top pressing device 8, the pedestal further include pedestal 1 and locating slot 2, are determined
Position slot 2 is fixedly mounted on the top of pedestal 1, and pedestal 1 is equipped with first sliding groove 101, is slidably fitted with the first slide post on pedestal 1
3 and second slide post 4, the first support 5 is fixedly installed at the top of the first slide post 3, and is fixedly installed at the top of the second slide post 4
Two supports 6, the first support 5 are fixedly connected with one end of locating rod 9, the second support 6 be equipped with joist 11, locating rod 9 it is another
End is placed on joist 11, and strain gauge 7 is slidably fitted in locating rod 9.
The utility model has the beneficial effects that facilitating operation, 3 points of various sizes of concrete beam components can be suitable for
Bend test, and loading position may be implemented, load being adjusted flexibly for span, be conducive to the measurement of every displacement deformation, it is non-
Often it is suitble to use in laboratory and engineering construction.
In preferred scheme, it is movably installed with card beam 10 on the locating slot 2, is equipped with rack gear at the top of locating slot 2.It is this
The beneficial effect of structure is: facilitating and fixes the first slide post 3 and the second slide post 4.
In preferred scheme, semi-circular recesses are equipped in the middle part of the card beam 10,10 bottom of card beam is equipped with rack gear.This knot
The beneficial effect of structure is: facilitating and fixes the first slide post 3 and the second slide post 4.
In preferred scheme, first slide post 3 further includes the first sliding block 301 and column 302, and column 302 is fixed
It is mounted on 301 top of the first sliding block, the second slide post 4 is identical as 3 structure of the first slide post.The beneficial effect of this structure exists
In: the concrete beam components suitable for various sizes.
In preferred scheme, first support 5 includes support plate 501, wedge-shaped support 502 and support spring 503, branch
It is fixedly installed with wedge-shaped support 502 on seat board 501, is additionally provided with support spring 503 on support plate 501, the second support 6 and first
5 structures of seat are identical.The beneficial effect of this structure is: facilitating fixing concrete beam, and reduces and cause in test to it
Influence.
In preferred scheme, the locating rod 9 is equipped with second sliding slot 901, is additionally provided with scale 902 at the top of locating rod 9.
The beneficial effect of this structure is: being convenient for measuring reading.
In preferred scheme, the strain gauge 7 further includes the second sliding block 701, connecting rod 702 and deformation gauge 703,
Connecting rod 702 is equipped with the second sliding block 701, and the both ends of connecting rod 702 are equipped with deformation gauge 703.The beneficial effect of this structure
It is: the convenient deformation situation that measurement concrete beam components different location is removed from horizontal and vertical both direction.
In preferred scheme, the top pressing device 8 further includes top pressing board 801, press support 802 and top pressure spring 803, top
It is fixedly installed with press support 802 on pressing plate 801, is additionally provided with top pressure spring 803 on top pressing board 801.The beneficial effect of this structure
Fruit is: facilitating fixing concrete beam, and reduces influence caused by it in test.
Embodiment 2:
As in Fig. 1-8, the course of work and working principle of the utility model:
1) the beams of concrete three-point bending according to required by operating condition of test loads span, and mobile first slide post (3) and the
Two slide posts (4) arrive suitable position, and two vice card beams (10) are individually positioned in the first slide post (3) and the second slide post later
(4) two sides, it is ensured that the first slide post (3) and the second slide post (4) position are fixed；
2) concrete beam components are placed on the first support (5) and the second support (6), and appropriate adjustment beams of concrete
Position keeps beams of concrete symmetrically placed relative to left and right support；
3) top pressing device (8) is placed in concrete beam components, is adjusted according to test requirements document to suitable position；
4) movement and deformation measuring appliance (7) are distinguished in the direction of second sliding slot (901) along locating rod (9), make strain gauge
(7) it is located on beams of concrete and needs to measure the position of displacement deformation, and makes horizontal direction and two vertically on strain gauge (7)
The probe of deformation gauge (703) is respectively contacted the side and bottom surface of beams of concrete；
5) 1) load of beams of concrete three point bending test ~ 4) can be started after the completion of step；
6) after the completion of test load, top pressing device (8) is removed from concrete beam components, is read on strain gauge (7)
The data of deformation gauge (701) take out beams of concrete from device, and strain gauge (7) is moved respectively to device two sides,
Remove the card beam (10) of the first slide post (3) and the second slide post (4) two sides；
Repeat 1) ~ 6) step, the three point bending test load of all concrete beam components is completed in batches.
Claims (8)
1. a kind of beams of concrete three point bending test device, including pedestal, the first slide post (3), the second slide post (4), first
Support (5), the second support (6), strain gauge (7), top pressing device (8), it is characterised in that: the pedestal further includes pedestal
(1) and locating slot (2), locating slot (2) are fixedly mounted on the top of pedestal (1), and pedestal (1) is equipped with first sliding groove (101), bottom
It is slidably fitted with the first slide post (3) and the second slide post (4) on seat (1), is fixedly installed with first at the top of the first slide post (3)
Support (5), the second slide post (4) top are fixedly installed with the second support (6), and one end of the first support (5) and locating rod (9) is solid
Fixed connection, the second support (6) are equipped with joist (11), and the other end of locating rod (9) is placed on joist (11), locating rod (9)
On be slidably fitted with strain gauge (7).
2. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: the locating slot
(2) it is movably installed on card beam (10), rack gear is equipped at the top of locating slot (2).
3. a kind of beams of concrete three point bending test device according to claim 2, it is characterised in that: the card beam
(10) middle part is equipped with semi-circular recesses, and card beam (10) bottom is equipped with rack gear.
4. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: described first is sliding
Dynamic column (3) further include the first sliding block (301) and column (302), and column (302) is fixedly mounted at the top of the first sliding block (301), the
Two slide posts (4) are identical as the first slide post (3) structure.
5. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: described first
Seat (5) includes that support plate (501), wedge-shaped support (502) and support spring (503), support plate are fixedly installed with wedge shape on (501)
Support (502) is additionally provided with support spring (503) on support plate (501), and the second support (6) is identical as the first support (5) structure.
6. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: the locating rod
(9) second sliding slot (901) are equipped with, are additionally provided with scale (902) at the top of locating rod (9).
7. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: the deformation is surveyed
Measuring device (7) further includes the second sliding block (701), connecting rod (702) and deformation gauge (703), and connecting rod (702) is equipped with the second sliding block
(701), the both ends of connecting rod (702) are equipped with deformation gauge (703).
8. a kind of beams of concrete three point bending test device according to claim 1, it is characterised in that: the top pressing device
It (8) further include that top pressing board (801), press support (802) and top pressure spring (803), top pressing board are fixedly installed with press on (801)
Support (802) is additionally provided with top pressure spring (803) on top pressing board (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821240905.6U CN208588633U (en) | 2018-08-02 | 2018-08-02 | A kind of beams of concrete three point bending test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821240905.6U CN208588633U (en) | 2018-08-02 | 2018-08-02 | A kind of beams of concrete three point bending test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208588633U true CN208588633U (en) | 2019-03-08 |
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ID=65543040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821240905.6U Expired - Fee Related CN208588633U (en) | 2018-08-02 | 2018-08-02 | A kind of beams of concrete three point bending test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208588633U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098234A (en) * | 2020-09-29 | 2020-12-18 | 浙江大学 | Test fixture of bending strength and toughness |
| CN112414865A (en) * | 2019-08-22 | 2021-02-26 | 长春设备工艺研究所 | Three-point bending test bed for plates |
| CN112798445A (en) * | 2020-12-30 | 2021-05-14 | 蓬莱市超硬复合材料有限公司 | Bending strength detection system and method for micro-drill rod, storage medium and terminal |
| CN112945738A (en) * | 2021-01-29 | 2021-06-11 | 中国原子能科学研究院 | Mechanical test device |
| CN113916291A (en) * | 2021-10-09 | 2022-01-11 | 中国建材检验认证集团浙江有限公司 | Device and method for inspecting structure performance of autoclaved aerated concrete slab |
-
2018
- 2018-08-02 CN CN201821240905.6U patent/CN208588633U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414865A (en) * | 2019-08-22 | 2021-02-26 | 长春设备工艺研究所 | Three-point bending test bed for plates |
| CN112098234A (en) * | 2020-09-29 | 2020-12-18 | 浙江大学 | Test fixture of bending strength and toughness |
| CN112798445A (en) * | 2020-12-30 | 2021-05-14 | 蓬莱市超硬复合材料有限公司 | Bending strength detection system and method for micro-drill rod, storage medium and terminal |
| CN112798445B (en) * | 2020-12-30 | 2022-01-28 | 蓬莱市超硬复合材料有限公司 | Bending strength detection system and method for micro-drill rod, storage medium and terminal |
| CN112945738A (en) * | 2021-01-29 | 2021-06-11 | 中国原子能科学研究院 | Mechanical test device |
| CN112945738B (en) * | 2021-01-29 | 2022-08-09 | 中国原子能科学研究院 | Mechanical test device |
| CN113916291A (en) * | 2021-10-09 | 2022-01-11 | 中国建材检验认证集团浙江有限公司 | Device and method for inspecting structure performance of autoclaved aerated concrete slab |
| CN113916291B (en) * | 2021-10-09 | 2024-02-13 | 中国国检测试控股集团浙江有限公司 | Autoclaved aerated concrete slab structural performance inspection device and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 Termination date: 20190802 |