CN214668350U - Stress monitoring loading device for freeze thawing test - Google Patents
Stress monitoring loading device for freeze thawing test Download PDFInfo
- Publication number
- CN214668350U CN214668350U CN202120625741.4U CN202120625741U CN214668350U CN 214668350 U CN214668350 U CN 214668350U CN 202120625741 U CN202120625741 U CN 202120625741U CN 214668350 U CN214668350 U CN 214668350U
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- plate
- adjustable screw
- freeze
- loading board
- screw rod
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 238000010257 thawing Methods 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a freeze thawing test stress monitoring loading device relates to fixed examination mould technical field when concrete shaping, including last loading board, lower loading board, screw hole and adjustable screw rod, the surface of going up loading board, lower loading board all has threaded hole all around, the inner wall swing joint of screw hole has adjustable screw rod, adjustable screw rod's top and bottom run through respectively in last loading board, lower loading board, adjustable screw rod's top and bottom are all through the nut and last loading board and lower loading board swing joint that set up, adjustable screw rod's center department is provided with the reinforcing bar dynamometer. The utility model discloses can adjust the use according to the test piece height and load to can monitor the stress variation of test piece during freeze thawing, and then in time know the test piece atress condition. The device has the advantages of small occupied space, low price and simple operation, can better monitor and load the freeze-thaw test piece, and improves the practicability of the stress monitoring and loading device for the freeze-thaw test.
Description
Technical Field
The utility model relates to a xxx relates to xx technical field, concretely relates to freeze thawing test stress monitoring loading device.
Background
The concrete structure in service in the northern coastal environment and the coastal environment is damaged by freezing and thawing as well as stress, and actually is damaged by freezing and thawing under certain stress. The freeze-thaw test in the relevant specifications of the existing concrete durability test is a freeze-thaw test under the stress-free condition, and the concrete stress monitoring loading device is designed to fix concrete and can better simulate the actual serving concrete structure by carrying out the freeze-thaw test.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, design a concrete stress monitoring loading device fixed concrete to freeze thawing test can better simulate the concrete structure of actual labour.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a freeze thawing test stress monitoring loading device, includes loading board, lower loading board, screw hole and adjustable screw rod, all set up the screw hole around the surface of going up loading board, lower loading board, the inner wall swing joint of screw hole has adjustable screw rod, the top and the bottom of adjustable screw rod run through respectively in last loading board, lower loading board.
The top and the bottom of the adjustable screw are movably connected with the upper bearing plate and the lower bearing plate through nuts arranged, and a steel bar dynamometer is arranged at the center of the adjustable screw.
The utility model discloses technical scheme's further improvement lies in: the steel bar dynamometer is characterized in that a first rib plate and a second rib plate are arranged on the surfaces of one sides, far away from the steel bar dynamometer, of the upper bearing plate and the lower bearing plate, and the first rib plate and the second rib plate are arranged in a crossed mode.
The utility model discloses technical scheme's further improvement lies in: and circular plates are arranged at the tops of the first rib plate and the second rib plate, and the circle centers of the circular plates are superposed with the intersection center points of the first rib plate and the second rib plate.
The utility model discloses technical scheme's further improvement lies in: the side length of the periphery of each of the upper bearing plate and the lower bearing plate is 200mm, and the height of each of the upper bearing plate and the lower bearing plate is 16 mm.
The utility model discloses technical scheme's further improvement lies in: the length of the first ribbed plate and the second ribbed plate is 200mm, the width of the first ribbed plate and the second ribbed plate is 10mm, and the height of the first ribbed plate and the height of the second ribbed plate are 20 mm.
The utility model discloses technical scheme's further improvement lies in: the internal diameter of screw hole is 20mm, the diameter of adjustable screw is 18mm, and the height of adjustable screw 7 is 500 mm.
The utility model discloses technical scheme's further improvement lies in: the diameter of each circular plate is 120mm, and the height of each circular plate is 20 mm.
Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:
the utility model provides a freeze thawing test stress monitoring loading device, through designing ingeniously, adopt loading board, lower loading board, adjustable screw rod, reinforcing bar dynamometer and nut and the device to combine, can adjust the use according to the test piece height and load to can monitor the stress variation of test piece during freeze thawing, and then in time know the test piece atress condition. The device has the advantages of small occupied space, low price and simple operation, can better monitor and load the freeze-thaw test piece, and improves the practicability of the stress monitoring and loading device for the freeze-thaw test.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the structure of the bearing plate of the present invention.
In the figure: 1. an upper bearing plate; 2. a lower bearing plate; 3. a first rib plate; 4. a second rib plate; 5. a circular plate; 6. a threaded hole; 7. an adjustable screw; 8. a reinforcing steel bar dynamometer; 9. and (4) a nut.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in FIGS. 1-2, the utility model provides a stress monitoring and loading device for freeze thawing test, which comprises an upper bearing plate 1, a lower bearing plate 2, a threaded hole 6 and an adjustable screw 7, wherein the threaded hole 6 is respectively arranged on the periphery of the surface of the upper bearing plate 1 and the lower bearing plate 2, the inner wall of the threaded hole 6 is movably connected with the adjustable screw 7, the top and the bottom of the adjustable screw 7 respectively penetrate through the upper bearing plate 1 and the lower bearing plate 2, the top and the bottom of the adjustable screw 7 are movably connected with the upper bearing plate 1 and the lower bearing plate 2 through a set nut 9, a steel bar dynamometer 8 is arranged at the center of the adjustable screw 7, a first ribbed plate 3 and a second ribbed plate 4 are respectively arranged on the surface of one side of the upper bearing plate 1 and the lower bearing plate 2 away from the steel bar dynamometer 8, the first ribbed plate 3 and the second ribbed plate 4 are arranged in a crossed manner, the first ribbed plate 3 and the top of the second ribbed plate 4 are provided with a circular plate 5, the circular portion of the circular plate 5 coincides with the intersection center point of the first rib 3 and the second rib 4.
Preferably, the length of the side around the upper bearing plate 1 and the lower bearing plate 2 is 200mm, the height of the upper bearing plate 1 and the height of the lower bearing plate 2 are 16mm, the length of the first rib plate 3 and the length of the second rib plate 4 are 200mm, the width of the first rib plate 3 and the width of the second rib plate 4 are 10mm, the height of the first rib plate 3 and the height of the second rib plate 4 are 20mm, the inner diameter of the threaded hole 6 is 20mm, the diameter of the adjustable screw rod 7 is 18mm, the height of the adjustable screw rod 7 is 500mm, the diameter of the circular plate 5 is 120mm, and the height of the circular plate 5 is 20 mm.
In this embodiment, through twisting nut 9, twist power through nut 9 controls concrete test piece stress, be provided with reinforcing bar dynamometer 8 in adjustable screw 7 center department simultaneously, can monitor every adjustable screw 7's atress through reinforcing bar dynamometry 8, and then calculate the compressive stress of concrete test piece, because it is connected through the adjustable screw 7 that sets up between upper bearing board 1 and the lower bearing board 2, thereby can make freeze-thaw test stress monitoring device should be used according to test piece height and load regulation, and then can monitor the stress variation of test piece during freeze-thaw, in time know the test piece atress condition, can monitor loading freeze-thaw test piece betterly.
The working principle of the stress monitoring loading device for the freeze-thaw test is described in detail below.
As shown in figures 1-2, when the stress monitoring and loading device for the freeze-thaw test works, the stress of a concrete test piece is controlled by the screwing force of a nut 9, meanwhile, the stress of each adjustable screw 7 can be monitored by a reinforcing steel bar force measurement 8, and the compressive stress of the concrete test piece is calculated.
The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.
Claims (7)
1. The utility model provides a freeze thawing test stress monitoring loading attachment, includes last loading board (1), lower loading board (2), screw hole (6) and adjustable screw rod (7), its characterized in that: threaded holes (6) are formed in the periphery of the surfaces of the upper bearing plate (1) and the lower bearing plate (2), an adjustable screw (7) is movably connected to the inner wall of each threaded hole (6), and the top and the bottom of each adjustable screw (7) penetrate through the upper bearing plate (1) and the lower bearing plate (2) respectively;
the top and the bottom of adjustable screw rod (7) all are through nut (9) and last loading board (1) and lower loading board (2) swing joint that set up, the center department of adjustable screw rod (7) is provided with reinforcing bar dynamometer (8).
2. The stress monitoring and loading device for the freeze-thaw test according to claim 1, wherein: the steel bar dynamometer is characterized in that a first ribbed plate (3) and a second ribbed plate (4) are arranged on the surface of one side, far away from the steel bar dynamometer (8), of the upper bearing plate (1) and the lower bearing plate (2), and the first ribbed plate (3) and the second ribbed plate (4) are arranged in a crossed mode.
3. The stress monitoring and loading device for the freeze-thaw test according to claim 2, wherein: the top parts of the first rib plate (3) and the second rib plate (4) are provided with circular plates (5), and the circle centers of the circular plates (5) are superposed with the crossed central points of the first rib plate (3) and the second rib plate (4).
4. The stress monitoring and loading device for the freeze-thaw test according to claim 1, wherein: the side lengths of the periphery of the upper bearing plate (1) and the periphery of the lower bearing plate (2) are both 200mm, and the heights of the upper bearing plate (1) and the lower bearing plate (2) are both 16 mm.
5. The stress monitoring and loading device for the freeze-thaw test according to claim 2, wherein: the length of the first ribbed plate (3) and the second ribbed plate (4) is 200mm, the width of the first ribbed plate is 10mm, and the height of the first ribbed plate (3) and the height of the second ribbed plate (4) are 20 mm.
6. The stress monitoring and loading device for the freeze-thaw test according to claim 1, wherein: the internal diameter of screw hole (6) is 20mm, the diameter of adjustable screw rod (7) is 18mm, and the height of adjustable screw rod (7) is 500 mm.
7. The stress monitoring and loading device for the freeze-thaw test according to claim 3, wherein: the diameters of the circular plates (5) are all 120mm, and the heights of the circular plates (5) are 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625741.4U CN214668350U (en) | 2021-03-26 | 2021-03-26 | Stress monitoring loading device for freeze thawing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625741.4U CN214668350U (en) | 2021-03-26 | 2021-03-26 | Stress monitoring loading device for freeze thawing test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214668350U true CN214668350U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120625741.4U Expired - Fee Related CN214668350U (en) | 2021-03-26 | 2021-03-26 | Stress monitoring loading device for freeze thawing test |
Country Status (1)
| Country | Link |
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| CN (1) | CN214668350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235578A (en) * | 2021-12-17 | 2022-03-25 | 哈尔滨工业大学 | Ice body resilience value test fixing frame and ice body compressive strength test method |
-
2021
- 2021-03-26 CN CN202120625741.4U patent/CN214668350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235578A (en) * | 2021-12-17 | 2022-03-25 | 哈尔滨工业大学 | Ice body resilience value test fixing frame and ice body compressive strength test method |
| CN114235578B (en) * | 2021-12-17 | 2023-12-05 | 哈尔滨工业大学 | Ice rebound value test fixing frame and ice compressive strength test method |
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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: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |