CN207779827U - A kind of Size Effects on Fracture Toughness of Concrete test device - Google Patents
A kind of Size Effects on Fracture Toughness of Concrete test device Download PDFInfo
- Publication number
- CN207779827U CN207779827U CN201721341376.4U CN201721341376U CN207779827U CN 207779827 U CN207779827 U CN 207779827U CN 201721341376 U CN201721341376 U CN 201721341376U CN 207779827 U CN207779827 U CN 207779827U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- upper frame
- pedestal
- slot
- fracture toughness
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 230000005476 size effect Effects 0.000 title claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000035939 shock Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a kind of Size Effects on Fracture Toughness of Concrete test devices, including pedestal and upper frame, upper frame is horizontally placed on the top of pedestal, the upper frame is fixedly connected with one end of pedestal by support column, the support column is equipped with slot close to the side of pedestal, buffer board is slidably connected in the slot, the both ends of the buffer board are equipped with sliding mouth, slide bar is slidably connected in the cunning mouth, the both ends for extending through sliding mouth of the slide bar are simultaneously fixedly connected with the inner wall of slot, the first spring is arranged on the slide bar, the both ends of first spring are fixedly connected with the inner wall of buffer board and slot respectively, two mounting grooves being provided symmetrically at the top of the pedestal, it is rotatably connected to threaded rod in one of them described mounting groove.The utility model makes device when carrying out toughness test to concrete by the setting of slot, fixed block and backing plate, easy to operate, to ensure that the testing efficiency of Size Effects on Fracture Toughness of Concrete.
Description
Technical field
The utility model is related to concrete test technical field more particularly to a kind of Size Effects on Fracture Toughness of Concrete test devices.
Background technology
As most popular construction material in the world today, concrete is present not only on common building object, equally
Building in complex work environment is also using concrete, such as dam.The pressure vessels such as drilling platforms and nuclear power station, this makes
It obtains people and not only only focuses on the basic performances such as tension and the compression strength of concrete, fracture characteristics and destruction basis mechanism are also increasingly subject to
The attention of researcher.But the structure of existing Size Effects on Fracture Toughness of Concrete test device is complex, is carried out in concrete tough
Property test when, operation is more troublesome, to affect the testing efficiency of Size Effects on Fracture Toughness of Concrete.
Utility model content
Purpose of the utility model is to solve the structures of Size Effects on Fracture Toughness of Concrete test device in the prior art more
Complexity operates the problem of being more troublesome when concrete carries out toughness test, and a kind of Size Effects on Fracture Toughness of Concrete proposed is tested
Device.
To achieve the goals above, the utility model uses following technical solution：
A kind of Size Effects on Fracture Toughness of Concrete test device, including pedestal and upper frame, upper frame are horizontally placed on the upper of pedestal
Side, the upper frame are fixedly connected with one end of pedestal by support column, and the support column is equipped with slot close to the side of pedestal,
Buffer board is slidably connected in the slot, the both ends of the buffer board are equipped with sliding mouth, cunning is slidably connected in the cunning mouth
Bar, the both ends for extending through sliding mouth of the slide bar are simultaneously fixedly connected with the inner wall of slot, and the first bullet is arranged on the slide bar
The both ends of spring, first spring are fixedly connected with the inner wall of buffer board and slot respectively, and the top of the pedestal is equipped with symmetrically
Two mounting grooves being arranged are rotatably connected to threaded rod in one of them described mounting groove, and one end of the threaded rod is passed through successively
It wears the madial wall of two mounting grooves and is fixedly connected with handle, the threaded rod is located at the threaded one end in mounting groove and is socketed with admittedly
Fixed board, the upper frame are equipped with port close to one end of support column, and push rod, the push rod difference are slidably connected in the port
Through the both ends of port and extend outwardly, is fixedly connected with bearing plate at the top of the push rod, one end of the bearing plate and upper
The top of frame body is connected by turnbuckle, and guide rod, one end of the guide rod are fixedly connected at the top of the upper frame
Through bearing plate and extend outwardly, the one end of the push rod far from bearing plate is fixedly connected with fixed block, and the upper frame is separate
One end of support column is fixedly connected with hydraulic cylinder by supporting rod, and the output end of the hydraulic cylinder is fixedly connected with pull rod,
The one end of the pull rod far from hydraulic cylinder extends through upper frame and to pedestal, and one end that the pull rod extends is fixedly connected with
Backing plate.
Preferably, be arranged with second spring on the guide rod, the both ends of the second spring respectively with bearing plate and upper
Frame body is fixedly connected.
Preferably, the one end of the guide rod far from upper frame is fixedly connected with limited block.
Preferably, the upper frame is equipped with impenetrating mouth corresponding with pull rod, is slidably connected in the impenetrating mouth multiple
Steel ball, the edge and pull rod of the steel ball are in contact.
Preferably, it is connected by damping shock absorber between one end and upper frame far from pedestal at the top of the backing plate.
Preferably, the bottom of the support column is fixedly connected with latch segment, and the latch segment is equipped with keeper.
In the utility model, user when in use, first passes through latch segment and fixes device, then by the one of concrete
End is inserted into slot, and the other end is placed on backing plate, and simultaneous buffering plate and the first spring can play concrete on certain bullet
Property supporting role, then swing handle drive threaded rod rotation, to drive two fixed plates move towards, it is mixed to fix
Then solidifying soil adjusts turnbuckle and drives push rod to move down by bearing plate, to drive fixed block to push down concrete, simultaneously
Guide rod can anti-throw-out lever shake, second spring can play bearing plate certain resilient support, then open hydraulic oil
Cylinder drives pull rod movement, to drive backing plate to be pulled up concrete, while damping shock absorber backing plate can be played it is certain
Cushioning buffer effect.The utility model makes device carry out toughness survey to concrete by the setting of slot, fixed block and backing plate
It is easy to operate when examination, to ensure that the testing efficiency of Size Effects on Fracture Toughness of Concrete.
Description of the drawings
Fig. 1 be the utility model proposes a kind of Size Effects on Fracture Toughness of Concrete test device structural schematic diagram；
Fig. 2 be the utility model proposes a kind of Size Effects on Fracture Toughness of Concrete test device threaded rod at test structure signal
Figure；
Fig. 3 is structural schematic diagram at the A of Fig. 1.
In figure：1 pedestal, 2 upper frames, 3 support columns, 4 buffer boards, 5 slide bars, 6 first springs, 7 threaded rods, 8 handles, 9 are consolidated
Fixed board, 10 push rods, 11 bearing plates, 12 turnbuckles, 13 guide rods, 14 fixed blocks, 15 supporting rods, 16 hydraulic cylinders, 17 pull rods,
18 backing plates, 19 second springs, 20 limited blocks, 21 steel balls, 22 damping shock absorbers, 23 latch segments.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-3, a kind of Size Effects on Fracture Toughness of Concrete test device, including pedestal 1 and upper frame 2,2 level of upper frame are set
Be placed in the top of pedestal 1, upper frame 2 is fixedly connected with one end of pedestal 1 by support column 3, support column 3 close to pedestal 1 one
Side slidably connects buffer board 4, certain resilient support is played to concrete equipped with slot for being inserted into concrete in slot
The both ends of effect, buffer board 4 are equipped with sliding mouth, and slide bar 5 is slidably connected in sliding mouth, are used to support buffer board 4, point of slide bar 5
The both ends of mouth Guan Chuan not slided and be fixedly connected with the inner wall of slot, the first spring 6, the both ends of the first spring 6 are arranged on slide bar 5
It is fixedly connected respectively with the inner wall of buffer board 4 and slot, certain resilient support is provided to buffer board 4, the top of pedestal 1 is equipped with
Symmetrically arranged two mounting grooves are rotatably connected to threaded rod 7 in one of mounting groove, for driving fixed plate 9 to move, spiral shell
One end of rasp bar 7 sequentially passes through the madial wall of two mounting grooves and is fixedly connected with handle 8, for rotating threaded rod 7, threaded rod
7 threaded one ends being located in mounting groove are socketed with fixed plate 9, are used for fixing concrete, upper frame 2 is close to one end of support column 3
Equipped with port, push rod 10 is slidably connected in port, for driving fixed block to push down concrete, push rod 10 extends through port
Both ends simultaneously extend outwardly, and the top of push rod 10 is fixedly connected with bearing plate 11, are used to support push rod 10, one end of bearing plate 11 and
The top of upper frame 2 is connected by turnbuckle 12, and the top of the position for adjusting push rod 10, upper frame 2 is fixedly connected with
Guide rod 13, anti-throw-out lever 10 shake, and one end of guide rod 13 through bearing plate 11 and extends outwardly, and push rod 10 is far from bearing plate
11 one end is fixedly connected with fixed block 14, and for pushing down concrete, the one end of upper frame 2 far from support column 3 passes through supporting rod
15 are fixedly connected with hydraulic cylinder 16, and for driving pull rod 17 to move, the output end of hydraulic cylinder 16 is fixedly connected with pull rod 17,
For driving backing plate 18 to move, the one end of pull rod 17 far from hydraulic cylinder 16 extends through upper frame 2 and to pedestal 1, pull rod 17
One end of extension is fixedly connected with backing plate 18, for pulling concrete.
In the utility model, be arranged with second spring 19 on guide rod 13, the both ends of second spring 19 respectively with bearing plate
11 are fixedly connected with upper frame 2, and certain resilient support is provided to bearing plate 11, and the one end of guide rod 13 far from upper frame 2 is solid
Surely it is connected with limited block 20, prevents bearing plate 11 from falling off from guide rod 13, upper frame 2 is equipped with run through corresponding with pull rod 17
Mouthful, multiple steel balls 21 are slidably connected in impenetrating mouth, the edge and pull rod 17 of steel ball 21 are in contact, and reduce pull rod 17 and impenetrating mouth
Between frictional force, the one end of the top of backing plate 18 far from pedestal 1 and connected by damping shock absorber 22 between upper frame 2, to pad
Plate 18 plays a certain role of shock absorption and buffering, and the bottom of support column 3 is fixedly connected with latch segment 23, and latch segment 23 is equipped with locking
Mouthful, facilitate fixing device.
It in the utility model, first passes through latch segment 23 and fixes device, then one end of concrete is inserted into slot,
The other end is placed on backing plate 18, and simultaneous buffering plate 4 and the first spring 6 can play concrete certain resilient support and make
With, then swing handle 8 drives threaded rod 7 to rotate, to drive two fixed plates 9 to move towards, to fix concrete,
Then adjust turnbuckle 12 drives push rod 10 to move down by bearing plate 11, to drive fixed block 14 to push down concrete,
Simultaneously guide rod 13 can anti-throw-out lever 10 shake, second spring 19 can play bearing plate 11 certain resilient support, so
Opening hydraulic cylinder 16 afterwards drives pull rod 17 to move, to drive backing plate 18 to be pulled up concrete, while damping shock absorber 22
Backing plate 18 can be played a certain role of shock absorption and buffering.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of Size Effects on Fracture Toughness of Concrete test device, including pedestal（1）And upper frame（2）, upper frame（2）It is horizontally placed on base
Seat（1）Top, which is characterized in that the upper frame（2）And pedestal（1）One end pass through support column（3）It is fixedly connected, it is described
Support column（3）Close to pedestal（1）Side be equipped with slot, slidably connect buffer board in the slot（4）, the buffer board
（4）Both ends be equipped with sliding mouth, slidably connect slide bar in the cunning mouth（5）, the slide bar（5）Extend through sliding mouth two
It holds and is fixedly connected with the inner wall of slot, the slide bar（5）On be arranged with the first spring（6）, first spring（6）Both ends
Respectively with buffer board（4）It is fixedly connected with the inner wall of slot, the pedestal（1）The installation of top be provided symmetrically two
Slot is rotatably connected to threaded rod in one of them described mounting groove（7）, the threaded rod（7）One end sequentially pass through two peaces
The madial wall of tankage is simultaneously fixedly connected with handle（8）, the threaded rod（7）Threaded one end in mounting groove is socketed with fixation
Plate（9）, the upper frame（2）Close to support column（3）One end be equipped with port, slidably connect push rod in the port（10）,
The push rod（10）It extends through the both ends of port and extends outwardly, the push rod（10）Top be fixedly connected with bearing plate
（11）, the bearing plate（11）One end and upper frame（2）Top pass through turnbuckle（12）Connection, the upper frame（2）
Top be fixedly connected with guide rod（13）, the guide rod（13）One end run through bearing plate（11）And extend outwardly, it is described
Push rod（10）Far from bearing plate（11）One end be fixedly connected with fixed block（14）, the upper frame（2）Far from support column（3）'s
One end passes through supporting rod（15）It is fixedly connected with hydraulic cylinder（16）, the hydraulic cylinder（16）Output end be fixedly connected with drawing
Bar（17）, the pull rod（17）Far from hydraulic cylinder（16）One end run through upper frame（2）And to pedestal（1）Extend, the drawing
Bar（17）One end of extension is fixedly connected with backing plate（18）.
2. a kind of Size Effects on Fracture Toughness of Concrete test device according to claim 1, which is characterized in that the guide rod（13）
On be arranged with second spring（19）, the second spring（19）Both ends respectively with bearing plate（11）And upper frame（2）It is fixed to connect
It connects.
3. a kind of Size Effects on Fracture Toughness of Concrete test device according to claim 1, which is characterized in that the guide rod（13）
Far from upper frame（2）One end be fixedly connected with limited block（20）.
4. a kind of Size Effects on Fracture Toughness of Concrete test device according to claim 1, which is characterized in that the upper frame（2）
It is equipped with and pull rod（17）Corresponding impenetrating mouth slidably connects multiple steel balls in the impenetrating mouth（21）, the steel ball（21）
Edge and pull rod（17）It is in contact.
5. a kind of Size Effects on Fracture Toughness of Concrete test device according to claim 1, which is characterized in that the backing plate（18）Top
Portion is far from pedestal（1）One end and upper frame（2）Between pass through damping shock absorber（22）Connection.
6. a kind of Size Effects on Fracture Toughness of Concrete test device according to claim 1, which is characterized in that the support column（3）
Bottom be fixedly connected with latch segment（23）, the latch segment（23）It is equipped with keeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341376.4U CN207779827U (en) | 2017-10-18 | 2017-10-18 | A kind of Size Effects on Fracture Toughness of Concrete test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341376.4U CN207779827U (en) | 2017-10-18 | 2017-10-18 | A kind of Size Effects on Fracture Toughness of Concrete test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207779827U true CN207779827U (en) | 2018-08-28 |
Family
ID=63219603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721341376.4U Expired - Fee Related CN207779827U (en) | 2017-10-18 | 2017-10-18 | A kind of Size Effects on Fracture Toughness of Concrete test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207779827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351698A (en) * | 2020-04-27 | 2020-06-30 | 兰州理工大学 | Concrete performance test experimental apparatus |
| CN113405913A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for soil fracture toughness and tensile strength and using method thereof |
-
2017
- 2017-10-18 CN CN201721341376.4U patent/CN207779827U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351698A (en) * | 2020-04-27 | 2020-06-30 | 兰州理工大学 | Concrete performance test experimental apparatus |
| CN113405913A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for soil fracture toughness and tensile strength and using method thereof |
| CN113405913B (en) * | 2021-06-09 | 2024-01-26 | 重庆交通大学 | Device for soil body fracture toughness and tensile strength and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207779827U (en) | A kind of Size Effects on Fracture Toughness of Concrete test device | |
| CN109505364A (en) | Self-resetting energy-consuming steel support with shape memory alloy damper | |
| CN207502311U (en) | A kind of cement pressure experimental device | |
| CN207764051U (en) | A kind of three-point bending device of test concrete fracture performance | |
| CN109771901A (en) | A kind of physical education physical strength training device convenient for adjusting | |
| CN207365973U (en) | A kind of Tunnel Engineering construction position indicator | |
| CN209043137U (en) | A kind of high slope explosion Rolling Stone blocking protective device | |
| CN107096217A (en) | A kind of labyrinth type children intelligent developmenting toy | |
| CN107503367B (en) | A kind of ground having function of seismic resistance | |
| CN107818723A (en) | A kind of uniaxial full physical simulation magnetic floating platform | |
| CN208444541U (en) | A kind of outdoor LED display screen | |
| CN209129294U (en) | A kind of damping device of aluminium-plastic panel | |
| CN201011976Y (en) | Wall chest bed | |
| CN108888962A (en) | A kind of swing that Novel anti-fall is fallen | |
| CN209604799U (en) | Computer cabinet Shatter-resistant device | |
| CN209053135U (en) | Small-size gymnasium system of taking precautions against earthquakes | |
| CN107884842A (en) | A kind of physical prospecting device for swampy area | |
| CN208280703U (en) | A kind of architectural vibration-insulation device | |
| CN207717405U (en) | A kind of equipment for building that fetches earth | |
| CN207676929U (en) | A kind of perforating device for photovoltaic electric edges of boards material | |
| CN207627841U (en) | A kind of table tennis bat of installation easy to disassemble | |
| CN207556545U (en) | A kind of construction site measurement mark post | |
| CN205964928U (en) | Mesa volleyball table | |
| CN204158960U (en) | A kind of multi-functional compound motion body-building apparatus | |
| CN104288965A (en) | Multifunctional compound motion fitness equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180828 Termination date: 20181018 |