CN220872240U - Reinforced concrete drawing test loading device - Google Patents
Reinforced concrete drawing test loading device Download PDFInfo
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- CN220872240U CN220872240U CN202322652383.8U CN202322652383U CN220872240U CN 220872240 U CN220872240 U CN 220872240U CN 202322652383 U CN202322652383 U CN 202322652383U CN 220872240 U CN220872240 U CN 220872240U
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- steel
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007586 pull-out test Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a reinforced concrete drawing test loading device. At present, a reinforced concrete drawing test piece is loaded by a universal testing machine, the device is not leveled, and the measurement is inaccurate. The utility model comprises a bearing frame, wherein a testing mechanism is arranged on the bearing frame; the test mechanism comprises a reaction frame, a test block is arranged on a bottom plate of the reaction frame, and a steel bar body is arranged in the test block; a steel flat plate is arranged above the test block and is connected with the reaction frame; the top of the steel plate is connected with a first steel plate, and a second steel plate is arranged on the first steel plate; the first steel plate and the second steel plate are fixedly connected through a first threaded rod and a nut; the second steel plate is provided with a spoke type force sensor, the top of the spoke type force sensor is provided with a jack, and the top of the jack is provided with a steel bar anchorage device. According to the utility model, the inclination angle of the leveling device is controlled through the bolts, so that the loading direction of the penetrating jack is consistent with the direction of the steel bar, and the problem of inaccurate measurement caused by non-orthogonality of the steel bar of the test piece and the concrete surface is effectively controlled.
Description
Technical Field
The utility model belongs to the technical field of reinforced concrete bonding, and particularly relates to a reinforced concrete drawing test loading device.
Background
The bonding effect between the reinforced steel bars and the concrete is related to the combined action effect of the two materials, is one of important influencing factors influencing the mechanical properties of the components, and is also a focus problem of attention of students at home and abroad. This bonding effect can be reflected by a pull-out test.
The sizes of the reinforced concrete drawing test pieces according to different specifications are different, and the test pieces are easy to generate the phenomenon that the reinforced concrete is not orthogonal to the concrete in the manufacturing process due to construction deviation and the like. Therefore, the method has certain adaptability requirements for the drawing loading test.
At present, a reinforced concrete drawing test piece is loaded and tested by a universal testing machine, a testing device is not leveled, and a steel bar is easy to eccentric stress to cause measurement errors or inaccurate measurement.
Disclosure of Invention
In order to make up for the defects of the prior art, the utility model provides the reinforced concrete drawing test loading device, which enables the loading direction of the penetrating jack to be consistent with the direction of the steel bar through bolt adjustment, and solves the problem of inaccurate measurement caused by non-orthogonality of the steel bar of the test piece and the concrete surface.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a reinforced concrete pull test loading device which characterized in that: the test device comprises a bearing frame, wherein the bearing frame is U-shaped, and a test mechanism is arranged on the bearing frame;
The test mechanism comprises a reaction frame which is fixedly connected to the inner bottom of the bearing frame; the reaction frame bottom plate is provided with a concrete test block, and a steel bar body is inserted into the concrete test block;
A steel flat plate is arranged above the concrete test block and is fixedly connected with the reaction frame through bolts; the top of the steel plate is fixedly connected with a first steel plate, and a second steel plate is arranged above the first steel plate; the first steel plate and the second steel plate are fixedly connected through four first threaded rods and nuts;
A force holding device is arranged between the first steel plate and the second steel plate;
The spoke type force sensing device is characterized in that a spoke type force sensing device is arranged on the second steel plate, a penetrating jack is arranged at the top of the spoke type force sensing device, and a steel bar anchorage device is arranged at the top of the penetrating jack.
Further, four first threaded rods are evenly arranged on four corners of the first steel plate, and the first threaded rods are perpendicular to the first steel plate.
Further, limiting mechanisms are arranged in the two sides of the bearing frame, each limiting mechanism comprises a worm, the worm is connected in the bearing frame in a horizontal direction in a rotating mode, and a hand crank is arranged at the exposed end of the worm; the worm is in transmission connection with the worm wheel, a second threaded rod is fixedly connected inside the worm wheel, the second threaded rod is rotatably connected inside the bearing frame, and the second threaded rod is arranged along the height direction of the bearing frame;
A baffle plate is arranged below the worm wheel; the periphery of the second threaded rod is connected with a threaded plate in a threaded manner, and the bottom of the threaded plate is fixedly connected with a sliding rod; the sliding rod is in sliding connection inside the bearing frame, slide rod bottom fixedly connected with antiskid ribbed tile, antiskid ribbed tile sets up in bearing frame bottom.
Further, scales are arranged on the bottom plate of the reaction frame.
Further, the force holding device comprises a clamping block, and the clamping block clamps the periphery of the steel bar body; the periphery of the clamping block is fixedly connected with an extensometer, the inside of the extensometer is in threaded connection with a fixing bolt, and the bottom of the fixing bolt is in threaded connection with a first steel plate; the clamping block both sides fixedly connected with fixed plate, the inside threaded connection of fixed plate has the regulation bolt.
Further, 4 universal wheels are arranged at the bottom of the bearing frame.
The utility model has the beneficial effects that:
1) According to the utility model, the inclination angle of the leveling device is controlled through the bolts, so that the loading direction of the penetrating jack is consistent with the direction of the steel bar, and the problem of inaccurate measurement caused by non-orthogonality of the steel bar of the test piece and the concrete surface is effectively controlled;
2) According to the utility model, the traditional reinforced concrete drawing test is modified to be an upward drawing reinforced concrete, the reinforced concrete test block is placed above the bottom plate of the counter-force device, and the bottom plate is marked with scale coordinates, so that the accurate placement position of the test block can be ensured, the test block cannot deviate due to the movement of the force holding device in the loading process, and the measurement error of the test piece in no centering during loading is effectively controlled;
3) ; the utility model is provided with the limit mechanism, so that the device is not easy to move in the loading process, and the safety and the accuracy of the test are ensured.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic diagram of a test mechanism;
FIG. 3 is a schematic diagram of the internal structure of the test mechanism;
FIG. 4 is a schematic view of the structure of the extensometer, the clamping block, the adjusting bolt and the fixing bolt;
FIG. 5 is a schematic diagram of a limiting mechanism;
In the figure: 1. a universal wheel; 2. a bearing frame; 3. a concrete test block; 4. a center-penetrating jack; 5. a reinforcing steel bar body; 6. a testing mechanism; 61. a steel plate; 62. a first steel plate; 63. a reaction frame; 64. a first threaded rod; 65. a nut; 66. a bolt; 67. a second steel plate; 68. a clamping block; 69. an extensometer; 601. a fixing bolt; 602. an adjusting bolt; 603. a fixing plate; 7. a steel bar anchor; 8. spoke type force sensing; 9. a limiting mechanism; 91. a cleat; 92. a slide bar; 93. a partition plate; 94. a worm; 95. a thread plate; 96. a worm wheel; 97. and a second threaded rod.
Detailed Description
The present utility model will be described in detail with reference to the following embodiments.
The utility model can test the bonding property of reinforced concrete, as shown in figure 1, the utility model comprises a bearing frame 2, wherein the bearing frame 2 is U-shaped, and a testing mechanism 6 is arranged on the bearing frame 2; the bottom of the bearing frame 2 is provided with 4 universal wheels 1, which is convenient for the movement of the device.
As shown in fig. 2 and 3, the testing mechanism 6 comprises a reaction frame 63, and the reaction frame 63 is fixedly connected to the inner bottom of the bearing frame 2; the bottom plate of the reaction frame 63 is provided with a concrete test block 3, and a reinforcing steel bar body 5 is inserted into the concrete test block 3;
A steel flat plate 61 is arranged above the concrete test block 3, and the steel flat plate 61 is fixedly connected with a reaction frame 63 through bolts 66; the top of the steel flat plate 61 is fixedly connected with a first steel plate 62, and a second steel plate 67 is arranged above the first steel plate 62; the first steel plate 62 and the second steel plate 67 are fixedly connected through four first threaded rods 64 and nuts 65; four first threaded rods 64 are uniformly arranged at four corners of the first steel plate 62, and the first threaded rods 64 are arranged vertically to the first steel plate 62; the spoke type force sensor 8 is arranged on the second steel plate 67, the center-penetrating jack 4 is arranged at the top of the spoke type force sensor 8, and the steel bar anchorage 7 is arranged at the top of the center-penetrating jack 4;
Through adjusting the nut, can adjust the inclination of second steel sheet, make the loading direction of punching jack unanimous with the reinforcing bar direction, solved the inaccurate problem of measurement that the non-quadrature of test piece itself reinforcing bar and concrete face leads to.
The counter-force frame 63 is provided with scales on the bottom plate, so that the concrete test block 3 can be guaranteed to be accurately placed, the offset can not occur due to the movement of the force holding device in the loading process, and the measurement error caused by the fact that the test piece is not centered during loading is effectively controlled.
The two sides of the bearing frame 2 are internally provided with limiting mechanisms 9, as shown in fig. 5, the limiting mechanisms 9 comprise a worm 94, the worm 94 is rotationally connected to the inside of the bearing frame 2 in the horizontal direction, and the exposed end of the worm 94 is provided with a hand crank; the worm 94 is in transmission connection with the worm wheel 96, a second threaded rod 97 is fixedly connected inside the worm wheel 96, the second threaded rod 97 is rotatably connected inside the bearing frame 2, and the second threaded rod 97 is arranged along the height direction of the bearing frame 2; a baffle 93 is arranged below the worm wheel 96; the periphery of the second threaded rod 97 is connected with a threaded plate 95 in a threaded manner, and the bottom of the threaded plate 95 is fixedly connected with a sliding rod 92; the slide bar 92 is slidably connected to the inside of the bearing frame 2, the bottom of the slide bar 92 is fixedly connected with the antiskid plate 91, and the antiskid plate 91 is arranged at the bottom of the bearing frame 2;
When the second threaded rod drives the threaded plate to move downwards, the sliding rod can be driven to move downwards, the sliding rod can limit the threaded plate to the left and right in the moving process, and meanwhile, the anti-skid plate can be driven to move downwards, so that the anti-skid plate can contact the ground, and the device is not easy to move.
A force holding device is arranged between the first steel plate 62 and the second steel plate 67, as shown in fig. 4, the force holding device comprises a clamping block 68, and the clamping block 68 clamps the periphery of the steel bar body 5; the periphery of the clamping block 68 is fixedly connected with an extensometer 69, a fixed bolt 601 is connected inside the extensometer 69 in a threaded manner, and the bottom of the fixed bolt 601 is connected with the first steel plate 62 in a threaded manner; the two sides of the clamping block 68 are fixedly connected with a fixing plate 603, and an adjusting bolt 602 is connected inside the fixing plate 603 in a threaded manner; the clamping blocks can be fixed on the periphery of the steel bar body through the fixing plates and the adjusting bolts.
In the actual operation process, when the device is used, the device is moved to a proper position through the universal wheel 1 at the bottom, the worm 94 is rotated, the worm 94 can drive the second threaded rod 97 to rotate through the worm wheel 96, the second threaded rod 97 can drive the slide rod 92 to move through the threaded plate 95, the slide rod 92 can drive the antiskid plate 91 to move downwards, the antiskid plate 91 can contact the ground, the device can not move through the universal wheel 1, the reinforced concrete test block 3 is placed above the base of the reaction frame 63, and the test piece is centered according to the scale above the base; the steel flat plate 61 passes through the steel bar body 5 and is placed above the concrete test block 3, and the steel flat plate 61 and the steel column of the reaction frame 63 are fixed through bolts 66; then the leveling device passes through the steel bar body 5 and is placed above the steel flat plate 61, and leveling is carried out by twisting nuts 65 at four corners of the leveling device, so that the steel bar body 5 is perpendicular to a first steel plate 62 and a second steel plate 67 on the leveling device; the spoke type force sensor 8 and the center penetrating jack 4 are sequentially placed above the leveling device by penetrating the steel bar body 5; penetrating the steel bar anchor 7 into the upper end of the steel bar body 5 for anchoring; placing an extensometer 69 in the leveling device, wherein the upper end of the extensometer 69 is connected with the steel bar body 5, and the lower end of the extensometer 69 is connected with a steel plate so as to measure the sliding displacement of the steel bar body 5 compared with the concrete test block 3; finally, the force along the length direction of the steel bar body 5 is applied by the penetrating jack 4 for loading.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The content of the utility model is not limited to the examples listed, and any equivalent transformation to the technical solution of the utility model that a person skilled in the art can take on by reading the description of the utility model is covered by the claims of the utility model.
Claims (6)
1. The utility model provides a reinforced concrete pull test loading device which characterized in that: the test device comprises a bearing frame (2), wherein the bearing frame (2) is U-shaped, and a test mechanism (6) is arranged on the bearing frame (2);
The test mechanism (6) comprises a reaction frame (63), and the reaction frame (63) is fixedly connected to the inner bottom of the bearing frame (2); a concrete test block (3) is arranged on the bottom plate of the reaction frame (63), and a steel bar body (5) is inserted into the concrete test block (3);
A steel flat plate (61) is arranged above the concrete test block (3), and the steel flat plate (61) is fixedly connected with a reaction frame (63) through bolts (66); a first steel plate (62) is fixedly connected to the top of the steel plate (61), and a second steel plate (67) is arranged above the first steel plate (62); the first steel plate (62) and the second steel plate (67) are fixedly connected through four first threaded rods (64) and nuts (65);
a force holding device is arranged between the first steel plate (62) and the second steel plate (67);
The spoke type force sensing device is characterized in that a spoke type force sensing device (8) is arranged on the second steel plate (67), a penetrating jack (4) is arranged at the top of the spoke type force sensing device (8), and a steel bar anchorage device (7) is arranged at the top of the penetrating jack (4).
2. The reinforced concrete drawing test loading device according to claim 1, wherein: the four first threaded rods (64) are uniformly arranged on four corners of the first steel plate (62), and the first threaded rods (64) are perpendicular to the first steel plate (62).
3. The reinforced concrete drawing test loading device according to claim 1, wherein: limiting mechanisms (9) are arranged inside two sides of the bearing frame (2), the limiting mechanisms (9) comprise worms (94), the worms (94) are connected inside the bearing frame (2) in a horizontal direction in a rotating mode, and hand shafts are arranged at exposed ends of the worms (94); the worm (94) is in transmission connection with the worm wheel (96), a second threaded rod (97) is fixedly connected inside the worm wheel (96), the second threaded rod (97) is rotatably connected inside the bearing frame (2), and the second threaded rod (97) is arranged along the height direction of the bearing frame (2);
A baffle plate (93) is arranged below the worm wheel (96); the periphery of the second threaded rod (97) is in threaded connection with a threaded plate (95), and the bottom of the threaded plate (95) is fixedly connected with a sliding rod (92); the sliding rod (92) is in sliding connection with the inside of the bearing frame (2), a antiskid plate (91) is fixedly connected with the bottom of the sliding rod (92), and the antiskid plate (91) is arranged at the bottom of the bearing frame (2).
4. A reinforced concrete pull-out test loading apparatus as recited in claim 3, wherein: the counter-force frame (63) bottom plate is provided with scales.
5. The reinforced concrete drawing test loading device as recited in claim 4, wherein: the holding force device comprises a clamping block (68), and the clamping block (68) clamps the periphery of the steel bar body (5); the periphery of the clamping block (68) is fixedly connected with an extensometer (69), the inside of the extensometer (69) is connected with a fixing bolt (601) in a threaded manner, and the bottom of the fixing bolt (601) is connected with a first steel plate (62) in a threaded manner; the clamping block (68) both sides fixedly connected with fixed plate (603), fixed plate (603) inside threaded connection has adjusting bolt (602).
6. The reinforced concrete drawing test loading device according to claim 5, wherein: the bottom of the bearing frame (2) is provided with 4 universal wheels (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652383.8U CN220872240U (en) | 2023-09-28 | 2023-09-28 | Reinforced concrete drawing test loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652383.8U CN220872240U (en) | 2023-09-28 | 2023-09-28 | Reinforced concrete drawing test loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872240U true CN220872240U (en) | 2024-04-30 |
Family
ID=90819696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322652383.8U Active CN220872240U (en) | 2023-09-28 | 2023-09-28 | Reinforced concrete drawing test loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872240U (en) |
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2023
- 2023-09-28 CN CN202322652383.8U patent/CN220872240U/en active Active
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