CN208937434U - Peg tensile shear testing device - Google Patents
Peg tensile shear testing device Download PDFInfo
- Publication number
- CN208937434U CN208937434U CN201821780042.1U CN201821780042U CN208937434U CN 208937434 U CN208937434 U CN 208937434U CN 201821780042 U CN201821780042 U CN 201821780042U CN 208937434 U CN208937434 U CN 208937434U
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- Prior art keywords
- horizontal
- steel plate
- peg
- vertical
- bindiny mechanism
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000010008 shearing Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 76
- 239000010959 steel Substances 0.000 claims description 76
- 238000009434 installation Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000010998 test method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of peg tensile shear testing device, experimental rig includes counter force wall, door frame, axial tension device, horizontal shear device, and axial tension device includes vertical actuator, upper bindiny mechanism, lower bindiny mechanism and fixed press beam；Horizontal shear device includes horizontal actuator, horizontal addload head and shearing fixed mechanism.The utility model can carry out shearing test research to the peg in the concrete under tensile stress state.The device has the features such as compact-sized, easy to operate, precision is high, reasonable stress, accuracy is strong.
Description
Technical field
It is exactly that a kind of drawing of peg is cut the utility model relates to the strength characteristics with mechanical stress test solid material
Experimental rig.
Background technique
With its production, simple, quick construction, cheap advantage are selected to build peg by numerous engineers and technicians
The connector in field.
Currently, the actual working environment of peg is not considered in terms of being concentrated mainly on shear connections to the research work of peg,
I.e. peg is in concrete, and by tensile stress and shear stress while acts on, and is cut in order to accurately obtaining the drawing of peg and is held
Power is carried, needs one kind that can provide tensile stress but also provide the experimental rig and test method of shear stress.
Utility model content
The utility model aims to solve the problem that the above problem, to provide, one kind is compact-sized, easy to operate, precision is high, by
Power is reasonable, the strong peg tensile shear testing device of accuracy.
The utility model solves described problem, the technical solution adopted is that:
A kind of peg tensile shear testing device, including axial tension device, horizontal shear device, the axial tension device
Equipped with vertical actuator, upper bindiny mechanism, lower bindiny mechanism, the top of upper bindiny mechanism is connect with vertical actuator, upper connection
The bottom jockey of mechanism, fixture, which is equipped with, is distributed two clamps in symmetry status, and two clamp adjacents of fixture are equipped with folder
Hold slot；
The underface of upper bindiny mechanism is arranged in lower bindiny mechanism, is connected and fixed test specimen, test specimen at the top of lower bindiny mechanism
Equipped with concrete bed and the peg being anchored in concrete；
The nut portion of peg is connected by clamping card slot cutting ferrule, and vertical actuator axis is overlapped with the axis of peg；
Horizontal shear device is equipped with horizontal addload head, and horizontal addload head is connect with horizontal actuator, horizontal addload head, horizontal
Loading head is equipped with vertical junction steel plate, horizontal connection steel plate, and one end of horizontal connection steel plate is vertical with vertical junction steel plate to be connect,
The other end of horizontal connection steel plate is fixedly connected with vertical roller assembly, the axis of horizontal actuator, horizontal addload head axle center,
The axle center in the axle center of horizontal connection steel plate, the axle center of vertical roller bearing and the peg head of a nail is located in the same horizontal plane；
While vertical actuator pulls up peg along the axis vertical of peg, horizontal actuator passes through perpendicular in the horizontal direction
Fixture is pushed to junction steel plate, horizontal connection steel plate and vertical roller assembly.
The utility model by adopting the above technical scheme, compared with prior art, the feature protruded is:
It (1), can be strong for the peg under different tensile stresses, the peg under different shear stress, difference by setting fixture
The peg for spending the peg in the concrete of grade and different anchorage lengths carries out load test.
(2) by the way that lower bindiny mechanism is arranged it is convenient for that the peg on test specimen is fixed.
(3) by the way that upper bindiny mechanism is arranged, convenient for testing tensile stress along axial force distribution to peg.
(4) by setting horizontal shear device, convenient for carrying out the test of shear stress to peg, and it can conveniently adjust level
The height of shear, convenient for guaranteeing the direction of horizontal shear stresses.
(5) device has the features such as compact-sized, easy to operate, precision is high, reasonable stress, accuracy is strong, can
The actual forced status of accurate simulation concrete peg.
Further optimal technical scheme is as follows:
The upper bindiny mechanism is equipped with lower connecting plate, and lower connecting plate passes through adjusting screw rod, adjusting nut and vertical actuation
Device connection, lower connecting plate middle part are equipped with test installation gap, and fixture top and test installation gap are clamped and connect.
By setting lower connecting plate, facilitates and be connected and fixed fixture using the installation gap of lower connecting plate, meanwhile, convenient for passing through
The height of adjusting screw rod, adjusting nut alignment jig.
The lower bindiny mechanism, which is equipped between column, column and column, is equipped with connecting plate, the top of column and bottom end point
Not She You upper steel plate, lower steel plate, upper steel plate reserves connecting hole, and connecting hole is connected and fixed test specimen.
By the way that column is arranged, and connecting plate column is set and carries out reinforcement fixation, guarantees the fixed stability of test specimen.Pass through
Upper steel plate, lower steel plate are set, convenient for being connected and fixed test specimen, while being connected and fixed convenient for the bottom of column at the top of column.
Fixed press beam is equipped between column above the lower steel plate, fixed press beam is fixed by anchorage screw and trench
Connection, fixed press beam grip lower steel plate.
By the way that fixed press beam is arranged, the fixed stability of column, the precision of guarantee test are improved.
The vertical junction steel plate is equipped with vertically arranged adjustment hole.
By the way that vertically arranged adjustment hole is arranged on vertical junction steel plate, convenient for vertically being connected using the adjusting of vertical connecting hole
The position of steel plate is connect, so as to adjust the height of horizontal horizontal connection steel plate, guarantees the direction of the shearing force in horizontal direction.
The horizontal shear device is equipped with shearing fixed mechanism at horizontal connection steel plate, and shearing fixed mechanism is equipped with water
Spaced horizontal roller assembly is put down, horizontal connection steel plate clamping is among horizontal roller assembly.
By the way that horizontal roller assembly is arranged, it is further ensured that horizontal connection steel plate moves in the horizontal direction, guarantees level side
To application shearing force.
The shearing fixed mechanism is equipped with spaced horizontally-supported steel plate, and horizontal roller assembly water is separately fixed at
The inner surface of horizontally-supported steel plate.
Horizontal connection steel plate is further ensured that by the way that horizontally-supported steel plate is arranged convenient for being connected and fixed horizontal roller assembly
It moves in the horizontal direction.
The vertical roller assembly is made of grillage and the roller bearing being fixed on grillage, and grillage, which is fastened in fixture two sides, to be made
Roller bearing is rolled along fixture upper surface.
Pass through above-mentioned setting, when vertical roller assembly, which is driven power, moves pushing fixture to one side of fixture, vertical actuation
Device pulls up peg along the axis vertical of peg, and roller bearing is rolled in fixture contact surface at this time, it is ensured that at horizontal shear device
In horizontality.
The vertical actuator vertical hanging on door frame, upper bindiny mechanism, the setting of lower bindiny mechanism door frame just under
Side；Horizontal actuator one end is fixedly mounted on counter force wall, and the other end of horizontal actuator is connect with horizontal addload head, door frame with
Counter force wall, which is all connected with, to be fixed in mounting base.
By the way that door frame is arranged, convenient for being connected and fixed for upper bindiny mechanism；The setting of counter force wall, convenient for being connected and fixed press horizontal mobile
Make device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the upper bindiny mechanism of the utility model, lower bindiny mechanism and horizontal addload head.
Fig. 3 is the structural schematic diagram of the horizontal shear device of the utility model.
Fig. 4 is the structural schematic diagram of bindiny mechanism on the utility model, lower bindiny mechanism.
Fig. 5 is the structural schematic diagram of bindiny mechanism on the utility model.
Fig. 6 is the structural schematic diagram of fixture.
Fig. 7 is the structural schematic diagram of horizontal addload head and shearing fixed mechanism.
Fig. 8 is the structural schematic diagram of horizontal roller assembly.
Fig. 9 is the structural schematic diagram of test specimen.
Description of symbols: 1- counter force wall；The horizontal actuator of 2-；3- horizontal addload head；4- door frame；The vertical actuator of 5-；
The upper bindiny mechanism of 6-；Bindiny mechanism under 7-；8- fixes press beam；9- trench；10- lower steel plate；11- column；12- connecting plate；On 13-
Steel plate；14- concrete bed；15- high-strength bolt；The vertical junction steel plate of 16-；17- horizontal connection steel plate；The horizontally-supported steel of 18-
Plate；19- fixture；20- hexagon socket head cap screw；21- anchorage screw；22- adjusting nut；23- tests installation gap；24- adjusting screw rod；
The horizontal roller assembly of 25-,；The vertical roller assembly of 26-；27- roller bearing gag lever post；28- roller bearing；29- peg；30- clamps card slot；
31- upper mounted plate；32- lower connecting plate.
Specific embodiment
Below with reference to embodiment, the utility model is further illustrated.
Referring to Fig. 1, Fig. 2, Fig. 9 it is found that a kind of peg tensile shear testing device of the utility model, by axial tension device,
Horizontal shear device composition；Axial tension device is equipped with vertical actuator 5, upper bindiny mechanism 6, lower bindiny mechanism 7, upper connection machine
The top of structure 6 is connect with vertical actuator 5, the bottom jockey 19 of upper bindiny mechanism 6, and fixture 19 is equipped in symmetry status point
Two clamps of cloth, two clamp adjacents of fixture 19 are equipped with clamping card slot 30；Lower bindiny mechanism 7 is arranged in upper bindiny mechanism 6
Underface, the top of lower bindiny mechanism 7 is connected and fixed test specimen, and test specimen is equipped with concrete bed 14 and is anchored in concrete
Peg 29；The nut portion of peg 29 is connected by 30 cutting ferrule of clamping card slot, the axis weight of vertical 5 axis of actuator and peg 29
It closes, horizontal shear device is equipped with horizontal addload head 3, and horizontal addload head 3 is connect with horizontal actuator 2, horizontal addload head 3, horizontal
Loading head 3 is equipped with vertical junction steel plate 16, horizontal connection steel plate 17, one end of horizontal connection steel plate 17 and vertical junction steel plate 16
Vertical connection, 17 other end of horizontal connection steel plate are fixedly connected with vertical roller assembly 26, the axis of horizontal actuator 2, level
The axle center of loading head 3, the axle center of horizontal connection steel plate 17, vertical roller bearing 26 29 head of a nail of axle center and peg axle center be located at it is same
In horizontal plane；While vertical actuator 5 pulls up peg 29 along the axis vertical of peg 29, horizontal actuator 2 is along level side
Fixture 19 is pushed to by vertical junction steel plate 16, horizontal connection steel plate 17 and vertical roller assembly 26.Vertical roller assembly 26
Guarantee that horizontal addload head 3 is in horizontality.There are companies corresponding with the upper steel plate of test specimen fixed mechanism for concrete bed 14
Connect hole.
In on door frame 4, upper bindiny mechanism 6, lower bindiny mechanism 7 are arranged immediately below door frame vertical 5 vertical hanging of actuator；
Horizontal 2 one end of actuator is fixedly mounted on counter force wall 1 by high-strength bolt 15, and the other end and level of horizontal actuator 2 add
Carrier head 3 connects, and door frame 4 and counter force wall 1 are all connected with and are fixed in mounting base.
Referring to fig. 2, Fig. 3 it is found that lower bindiny mechanism 7 be equipped between column 11, column 11 and column 11 be equipped with connecting plate 12,
The top and bottom end of column 11 are respectively equipped with upper steel plate, lower steel plate 10, and upper steel plate reserves connecting hole, and connecting hole is connected and fixed examination
Part.Column 11 is made by two channel steels, and two channel steels are welded and fixed by connecting plate 12, and four connecting holes pass through four spiral shells
Bolt is connected with concrete bed 14.
Referring to fig. 4 it is found that being equipped with fixed press beam 8 between the column 11 of 10 top of lower steel plate, fixed press beam 8 passes through anchoring spiral shell
Bar 21 is fixedly connected with trench 9, and fixed press beam 8 grips lower steel plate 10.
Referring to Fig. 5 it is found that upper bindiny mechanism 6 is equipped with lower connecting plate, lower connecting plate 32 passes through adjusting screw rod 24, adjusting nut
22 connect with vertical actuator 5, and test installation gap 23,19 top of fixture and test installation gap are equipped in the middle part of lower connecting plate 32
23 clamping connections.
Referring to Fig. 6 it is found that two clamps of fixture 19 are connected and fixed by hexagon socket head cap screw 20.The folder of fixture 19
The slot 30 that holds divides the horizontal card slot to be connected, vertical card slot, and vertical card slot accommodates the bolt body of peg 29, and horizontal card slot accommodates bolt
Cap.19 top of fixture sets the test there are two flute profile backing plate, being equipped with by the lower connecting plate 32 of flute profile backing plate and upper bindiny mechanism 6
The clamping of 23 phase of installation gap,
Referring to fig. 2, Fig. 7 is it is found that vertical junction steel plate 16 is equipped with vertically arranged adjustment hole.It is adjusted by adjustment hole perpendicular
To 16 position of junction steel plate, and then adjust the position that vertical roller assembly 26 acts on fixture 19.Horizontal shear device is in level
Shearing fixed mechanism is equipped at junction steel plate 17, shearing fixed mechanism is equipped with the horizontal roller assembly 25 being horizontally spaced about, water
Flushconnection steel plate 17 is clamped among horizontal roller assembly 25.It shears fixed mechanism and is equipped with spaced horizontally-supported steel plate
18, horizontal 25 water of roller assembly is separately fixed at the inner surface of horizontally-supported steel plate 18.Concrete bed 14, horizontally-supported steel plate
18 are connected by adjusting screw rod 24, guarantee 3 Stable sliding of horizontal addload head.
Referring to Fig. 8 it is found that horizontal roller assembly 25 is set in parallel equipped with 2 roller bearing gag lever posts, 27,2 roller bearing gag lever posts 27
It sets, roller bearing gag lever post 27 is connected and fixed roller bearing 28, the setting of the interval of fixed roller 28.
The test method of peg tensile shear testing device, including following lower step:
(1) the vertical actuator 5 for installing axial tension device is mounted on door frame 4, by horizontal shear device
Horizontal actuator 2 is mounted on counter force wall 1, in order to facilitate observation of experimental phenomena, and the height of horizontal actuator 2 is unsuitable excessively high,
The horizontal actuator 2 of strict guarantee is in 5 axle center of horizontality and vertical actuator, test specimen axle center and is overlapped；
(2) upper bindiny mechanism 6, lower bindiny mechanism 7 and the test specimen of axial tension device are installed, upper bindiny mechanism 6 passes through height
Strength bolt 15 is fixedly connected with vertical actuator 5, and bindiny mechanism 7 under test specimen prefabricated in advance is placed under vertical actuator 5
Test specimen, is then placed in the top of lower bindiny mechanism 7, and be fixedly connected by side, adjusts position, strict guarantee test specimen axle center and perpendicular
It is overlapped to the axle center of actuator 5, and anchor connection is carried out by anchorage screw 21 and trench 9 by fixed press beam 8；
(3) the horizontal addload head 3 for installing horizontal actuator 2, promoting vertical actuator 5 makes axial tension device be in tension
When state, 16 position of vertical junction steel plate of horizontal addload head 3 is adjusted, makes axle center and 29 head of a nail of peg of vertical roller assembly 26
Axle center is in same level；
(4) test load, promotes vertical actuator 5 and the horizontal actuator 2 of stretching, and performance shape is cut in the drawing of observation peg 29
Condition.
The test method of peg tensile shear testing device, step (3) further include following lower step: installing and fix at the top of test specimen
Two horizontal roller bearings being stacked are set between two 18, two horizontally-supported steel plates 18 of horizontally-supported steel plate disposed in parallel
Device 25, two horizontal roller assemblies 25 grip horizontal connection steel plate 17.
Compared with prior art, prominent feature is the present embodiment:
(1) device can be accurately to the peg under different tensile stresses, the peg under different shear stress, different intensity grades
Concrete in peg and different anchorage lengths peg carry out load test.
(2) device has the features such as compact-sized, easy to operate, precision is high, reasonable stress, accuracy is strong, can
The actual forced status of accurate simulation concrete peg.
The above is only the preferred feasible embodiment of the utility model, not thereby limits to the power of the utility model
Sharp range, it is all with the variation of equivalent structure made by the utility model specification and accompanying drawing content, it is both contained in the utility model
Interest field within.
Claims (9)
1. a kind of peg tensile shear testing device, including axial tension device, horizontal shear device, it is characterised in that:
The axial tension device be equipped with vertical actuator, upper bindiny mechanism, lower bindiny mechanism, the top of upper bindiny mechanism with
Vertical actuator connection, the bottom jockey of upper bindiny mechanism, fixture, which is equipped with, is distributed two clamps in symmetry status, fixture
Two clamp adjacents are equipped with clamping card slot；
The underface of upper bindiny mechanism is arranged in lower bindiny mechanism, is connected and fixed test specimen at the top of lower bindiny mechanism, test specimen is equipped with
Concrete bed and the peg being anchored in concrete；
The nut portion of peg is connected by clamping card slot cutting ferrule, and vertical actuator axis is overlapped with the axis of peg；
Horizontal shear device is equipped with horizontal addload head, and horizontal addload head is connect with horizontal actuator, horizontal addload head, horizontal addload
Head is equipped with vertical junction steel plate, horizontal connection steel plate, and one end of horizontal connection steel plate is vertical with vertical junction steel plate to be connect, horizontal
The other end of junction steel plate is fixedly connected with vertical roller assembly, the axis of horizontal actuator, the axle center of horizontal addload head, level
The axle center in the axle center of junction steel plate, the axle center of vertical roller bearing and the peg head of a nail is located in the same horizontal plane；
While vertical actuator pulls up peg along the axis vertical of peg, horizontal actuator passes through in the horizontal direction vertically to be connected
It connects steel plate, horizontal connection steel plate and vertical roller assembly and pushes fixture.
2. peg tensile shear testing device according to claim 1, it is characterised in that: the upper bindiny mechanism is equipped with lower company
Fishplate bar, lower connecting plate are connect by adjusting screw rod, adjusting nut with vertical actuator, and test installation is equipped in the middle part of lower connecting plate and is lacked
Mouthful, fixture top and test installation gap clamping connect.
3. peg tensile shear testing device according to claim 1, it is characterised in that: the lower bindiny mechanism is equipped with vertical
It is equipped with connecting plate, the top of column and bottom end between column, column and column and is respectively equipped with upper steel plate, lower steel plate, upper steel plate is reserved
Connecting hole, connecting hole are connected and fixed test specimen.
4. peg tensile shear testing device according to claim 3, it is characterised in that: column above the lower steel plate it
Between be equipped with fixed press beam, fixed press beam is fixedly connected by anchorage screw with trench, is fixed press beam and is gripped lower steel plate.
5. peg tensile shear testing device according to claim 1, it is characterised in that: the vertical junction steel plate is equipped with
Vertically arranged adjustment hole.
6. peg tensile shear testing device according to claim 1, it is characterised in that: the horizontal shear device is in level
Shearing fixed mechanism is equipped at junction steel plate, shearing fixed mechanism is equipped with the horizontal roller assembly being horizontally spaced about, and level is even
Steel plate clamping is connect among horizontal roller assembly.
7. peg tensile shear testing device according to claim 6, it is characterised in that: between the shearing fixed mechanism is equipped with
Every the horizontally-supported steel plate of setting, horizontal roller assembly water is separately fixed at the inner surface of horizontally-supported steel plate.
8. peg tensile shear testing device according to claim 1, it is characterised in that: the vertical roller assembly is by grillage
It is constituted with the roller bearing being fixed on grillage, grillage, which is fastened in fixture two sides, rolls roller bearing along fixture upper surface.
9. peg tensile shear testing device according to claim 1, it is characterised in that: the vertical actuator vertical hanging
In on door frame, upper bindiny mechanism, lower bindiny mechanism are arranged immediately below door frame；Horizontal actuator one end is fixedly mounted on counter force wall
On, the other end of horizontal actuator is connect with horizontal addload head, and door frame and counter force wall are all connected with and are fixed in mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780042.1U CN208937434U (en) | 2018-10-31 | 2018-10-31 | Peg tensile shear testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780042.1U CN208937434U (en) | 2018-10-31 | 2018-10-31 | Peg tensile shear testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208937434U true CN208937434U (en) | 2019-06-04 |
Family
ID=66726685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780042.1U Expired - Fee Related CN208937434U (en) | 2018-10-31 | 2018-10-31 | Peg tensile shear testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208937434U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175065A (en) * | 2020-01-21 | 2020-05-19 | 中国建筑科学研究院有限公司 | On-spot multidirectional power detection device of assembled building envelope connected system |
| CN111238845A (en) * | 2020-01-21 | 2020-06-05 | 中国建筑科学研究院有限公司 | Detection method of assembly type building envelope connecting system |
| CN111595675A (en) * | 2020-05-25 | 2020-08-28 | 温州设计集团有限公司 | Shear nail pulling resistance test loading device matched with pressure testing machine |
| CN113447370A (en) * | 2021-06-24 | 2021-09-28 | 江苏省建筑工程质量检测中心有限公司 | Integral tension-shear test system and method for precast concrete sandwich thermal insulation wallboard |
| CN114088546A (en) * | 2022-01-12 | 2022-02-25 | 南通大自然温室大棚制造有限公司 | Shear-resistant bearing capacity detection device for stud for steel pipe and implementation method thereof |
-
2018
- 2018-10-31 CN CN201821780042.1U patent/CN208937434U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175065A (en) * | 2020-01-21 | 2020-05-19 | 中国建筑科学研究院有限公司 | On-spot multidirectional power detection device of assembled building envelope connected system |
| CN111238845A (en) * | 2020-01-21 | 2020-06-05 | 中国建筑科学研究院有限公司 | Detection method of assembly type building envelope connecting system |
| CN111175065B (en) * | 2020-01-21 | 2022-05-03 | 中国建筑科学研究院有限公司 | On-spot multidirectional power detection device of assembly type structure envelope connected system |
| CN111238845B (en) * | 2020-01-21 | 2022-06-17 | 中国建筑科学研究院有限公司 | Detection method of assembly type building envelope connecting system |
| CN111595675A (en) * | 2020-05-25 | 2020-08-28 | 温州设计集团有限公司 | Shear nail pulling resistance test loading device matched with pressure testing machine |
| CN113447370A (en) * | 2021-06-24 | 2021-09-28 | 江苏省建筑工程质量检测中心有限公司 | Integral tension-shear test system and method for precast concrete sandwich thermal insulation wallboard |
| CN114088546A (en) * | 2022-01-12 | 2022-02-25 | 南通大自然温室大棚制造有限公司 | Shear-resistant bearing capacity detection device for stud for steel pipe and implementation method thereof |
| CN114088546B (en) * | 2022-01-12 | 2022-04-01 | 南通大自然温室大棚制造有限公司 | Shear-resistant bearing capacity detection device for stud for steel pipe and implementation method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 |