CN213749367U - Fixing device of test block of springback strength measurement curve - Google Patents
Fixing device of test block of springback strength measurement curve Download PDFInfo
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- CN213749367U CN213749367U CN202022613208.4U CN202022613208U CN213749367U CN 213749367 U CN213749367 U CN 213749367U CN 202022613208 U CN202022613208 U CN 202022613208U CN 213749367 U CN213749367 U CN 213749367U
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000005259 measurement Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a fixing device of a rebound strength-measuring curve test block, which comprises a fixed bottom plate, a stand column, an upper loading plate and a lower loading plate, wherein the upper loading plate and the lower loading plate are sleeved on the stand column, the whole device is divided into two parts, a pressurizing area and a fixing area, a concrete test block in the fixing area is clamped and fixed by the upper loading plate fixed by an upper nut and the lower loading plate moving freely, the pressurizing area applies (60-100) kN pressure to the concrete test block through a jack with a pressure gauge, a tester rebounds from the side surface of the concrete test block by using a rebounding instrument, the device only clamps the concrete test block through 4 stand column fixed loading plates and is fixed on the ground through foundation bolts, so that the device has flexible position, simple structure and convenient operation, and the tester has large operation space, and can rebound from the side surface of the concrete test block more easily, effectively improve test efficiency and test accuracy.
Description
Technical Field
The utility model belongs to the technical field of building structure resilience method detects, concretely relates to fixing device of strong curve test block is surveyed in resilience.
Background
Along with the national requirements of energy conservation and emission reduction, the difference between the strength estimation value and the actual value of the concrete springback strength measurement curve is larger due to factors such as the increase of the proportion of the admixture in the concrete raw material, the change of the sandstone material source and the like. Therefore, in order to improve the accuracy of detecting the concrete strength by the rebound method, a regional or special strength measuring curve needs to be formulated according to the characteristics of the regional raw material variety specification, the forming process and the maintenance method.
According to the specification of appendix B of technical specification JGJ/T23-2011 for detecting concrete strength by a rebound method, a test block for making a regional or special strength measurement curve is arranged between an upper bearing plate and a lower bearing plate of a press machine at two opposite surface positions of a pouring side surface, pressure (60-100) is applied, and under the condition of keeping the pressure, the two side surfaces of the concrete test block are respectively impacted for 8 points according to the operation method of a resiliometer. Because the press machine is fixed in position, the loading plate is large in size, the stand column interval is small, and the protective nets are arranged on the periphery of the loading plate, so that the resilience difficulty of the side face of the test block is large, and the test precision is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists, the utility model provides a fixing device of strong curve test block is surveyed in resilience, the position is nimble, and the stand interval is big, and the load plate size is fit for, makes testing personnel kick-back in the concrete side more easily, has effectively improved test efficiency and experimental precision.
The utility model discloses can realize through following technical scheme:
the utility model provides a fixing device of test block of test of kick-back intensity includes PMKD, four stands, goes up loading plate and loading plate down, has the jack of manometer for the resiliometer of test of kick-back.
And a pressurizing area is formed between the lower loading plate and the fixed bottom plate. The fixing bottom plate is a rectangular plate with the thickness of 15-20cm, an opening is formed in the fixing bottom plate, a fixing bottom plate is installed on the ground through the opening by anchor bolts, the anchor bolts are installed at four corners of the fixing bottom plate, a combination part of an upright column is further arranged at a position, close to four corners, of the fixing bottom plate, the upright column is fixedly connected with the fixing bottom plate through the combination part, a lower loading plate is sleeved on the upright column, four round holes are formed in the upper portion of the lower loading plate and matched with the upright column, a jack is arranged below the lower loading plate and arranged on the upper surface of the fixing bottom plate, and the lower loading plate moves up and down along the upright column through the expansion and contraction of the jack.
The lower loading plate and the upper loading plate form a concrete test block fixing area. The concrete test block fixing device comprises a lower loading plate, a column, an upper nut, a lower loading plate and a rebound instrument, wherein a concrete test block can be placed on the upper surface of the lower loading plate, the upper surface of the concrete test block is provided with the upper loading plate, four round holes are formed in the upper portion of the upper loading plate and are sleeved with the column and fixed on the column through the upper nut, the concrete test block is fixed through up-and-down movement of the lower loading plate, and the rebound instrument acts on the side face of the concrete test block.
Further, the diameter of the round hole is 12cm, the upright column is cylindrical, the upright column can also be any other geometric column, and the round holes formed above the upper loading plate and the lower loading plate are consistent with the shape and size of the upright column.
Further, the anchor bolts may be located at four corners of the fixing base plate, but are not limited to the corners only as long as the fixing base plate can be fixed to the ground.
Further, the center of the jack is coincided with the center of the fixed bottom plate.
The utility model discloses beneficial effect who has:
1. in the device, the device is directly fixed on the ground through the foundation bolt, so that the assembly position of the device is more flexible;
2. the concrete test block can be stably fixed by movably mounting the lower loading plate and fixing the upper loading plate through the upper nut;
3. through the cooperation installation of four stands and last loading plate and loading plate down for the tester has bigger operating space and is convenient for carry out the resilience test at the concrete test block side.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic plan view of a fixture for a springback test block;
fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
In the figure: 1. screwing a nut; 2. an upper loading plate; 3. a column; 4. a lower loading plate; 5. a pressure gauge; 6. fixing the bottom plate; 7. testing concrete blocks; 8. a rebound tester; 9. a jack; 10. anchor bolts; 11. and (4) the ground.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the fixing device of the springback strength measurement curve test block comprises a fixed bottom plate 6, four upright posts 3, an upper loading plate 2, a lower loading plate 4, a jack 9 with a pressure gauge 5, and a resiliometer 8 for springback test.
A pressurized zone is formed between the lower loading plate 4 and the fixed base plate 6. The fixed base plate 6 is a rectangular plate with the thickness of 15-20cm, the fixed base plate 6 is provided with an opening, the fixed base plate 6 is fixed on the ground 11 through the opening by anchor bolts 10, and the anchor bolts 10 can be arranged at four corners of the fixed base plate 6 in an array manner. The position of the fixed bottom plate 6 near four corners is also provided with a combination part of the upright post 3, the upright post 3 is fixedly connected with the fixed bottom plate 6 through the combination part, the connection mode can be welding, the upright post 3 can be cylindrical, and the position above the upright post 3 near the middle is sleeved with the lower loading plate 4. Four circular holes are formed in the upper portion of the lower loading plate 4 and matched with the upright posts 3, a jack 9 is arranged below the lower loading plate 4, the jack 9 is arranged on the upper surface of the fixed bottom plate 6, and the lower loading plate 4 can move up and down along the upright posts 3 through the stretching of the jack 9.
The lower loading plate 4 and the upper loading plate 2 form a fixing area of a concrete test block 7. The concrete test block 7 can be placed on the upper surface of the lower loading plate 4, the upper loading plate 2 is arranged on the upper surface of the concrete test block 7, four circular holes are formed in the upper portion of the upper loading plate 2 and are in sleeve joint with the upright posts 3 and are fixed on the upright posts 3 through the upper nuts 1, the diameter of each circular hole is 12cm, and the size of each circular hole is consistent with that of the circular hole formed in the upper portion of the lower loading plate 4. The upper loading plate 2 and the lower loading plate 4 are rectangular plates with the thickness of 10-15cm, the concrete test block 7 is fixed with the upper loading plate 2 through the up-and-down movement of the lower loading plate 4, and the resiliometer 8 acts on the side face of the concrete test block 7.
Referring to fig. 2, the columns 3 are installed at the corners of the lower loading plate 4 in a sectional view, and the concrete test block 7 is placed at the middle of the lower loading plate 4.
The utility model discloses a working method:
according to the test requirements, determining the installation position of the device, installing a fixed bottom plate 6 on the ground 11 through an opening by using foundation bolts 10, installing a jack 9 with a pressure gauge 5 on the fixed bottom plate 6, requiring the center of the jack 9 to coincide with the center of the fixed bottom plate 6, after the jack 9 is installed, installing a lower loading plate 4 above the jack 9 by penetrating through an upright post 3, then placing a concrete test block 7 on the lower loading plate 4, ensuring the concrete test block 7 to be aligned with the lower loading plate 4, after the concrete test block 7 is placed, placing an upper loading plate 2 on the concrete test block 7 by penetrating through the upright post 3, fixing by using an upper nut 1, after the jack 9 is loaded with 60-100 kN pressure, respectively performing rebound tests on two sides of the concrete test block 7 by using rebound testers 8, taking down the jack 9 and the concrete test block 7, installing the next concrete test block 7, the test was repeated.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. A fixing device for a springback strength measurement curve test block is characterized by comprising a fixing bottom plate (6), four upright posts (3), an upper loading plate (2), a lower loading plate (4) and a resiliometer (8);
a pressurizing area is formed between the fixed bottom plate (6) and the lower loading plate (4), holes are formed in the fixed bottom plate (6), the fixed bottom plate (6) is fixed on the ground (11) through the holes by anchor bolts (10), the anchor bolts (10) are installed at four corners of the fixed bottom plate (6), a combination part of an upright post (3) is further arranged at a position, close to the four corners, on the fixed bottom plate (6), the upright post (3) is fixedly connected with the fixed bottom plate (6) through the combination part, the lower loading plate (4) is sleeved above the upright post (3), four round holes are formed above the lower loading plate (4) and matched with the upright post (3), a jack (9) is arranged below the lower loading plate (4), and the jack (9) is arranged on the upper surface of the fixed bottom plate (6);
a fixing area is formed between the lower loading plate (4) and the upper loading plate (2), a concrete test block (7) is placed on the upper surface of the lower loading plate (4), the upper loading plate (2) is arranged on the upper surface of the concrete test block (7), four round holes are formed in the upper portion of the upper loading plate (2), the four round holes are sleeved with the upright posts (3), and the upper loading plate is fixed on the upright posts (3) through the upper nuts (1).
2. The device for fixing a rebound test strength curve test block according to claim 1, wherein the fixed base plate (6), the upper loading plate (2) and the lower loading plate (4) are all rectangular parallelepiped plates, the thickness of the fixed base plate (6) is 15-20cm, and the thickness of the upper loading plate (2) and the lower loading plate (4) is 10-15 cm.
3. The device for fixing the rebound testing strength curve test block according to claim 1, wherein the diameter of the circular hole is 12cm, the upright column (3) is cylindrical, the upright column (3) is a cylinder with any geometric shape, and the circular holes formed above the upper loading plate (2) and the lower loading plate (4) are consistent with the shape and size of the upright column (3).
4. The fixing device of the rebound testing strength curve test block as set forth in claim 1, wherein the jack (9) is a jack (9) with a pressure gauge (5), and the center of the jack (9) coincides with the center of the fixed bottom plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613208.4U CN213749367U (en) | 2020-11-12 | 2020-11-12 | Fixing device of test block of springback strength measurement curve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613208.4U CN213749367U (en) | 2020-11-12 | 2020-11-12 | Fixing device of test block of springback strength measurement curve |
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| Publication Number | Publication Date |
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| CN213749367U true CN213749367U (en) | 2021-07-20 |
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| CN202022613208.4U Active CN213749367U (en) | 2020-11-12 | 2020-11-12 | Fixing device of test block of springback strength measurement curve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878384A (en) * | 2022-07-08 | 2022-08-09 | 中铁十八局集团第四工程有限公司 | Concrete strength testing device and method |
-
2020
- 2020-11-12 CN CN202022613208.4U patent/CN213749367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878384A (en) * | 2022-07-08 | 2022-08-09 | 中铁十八局集团第四工程有限公司 | Concrete strength testing device and method |
| CN114878384B (en) * | 2022-07-08 | 2022-11-04 | 中铁十八局集团第四工程有限公司 | Concrete strength testing device and method |
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| CP03 | Change of name, title or address |
Address after: 243000 No. 528, middle section of Tianmen Avenue, Yushan District, Ma'anshan City, Anhui Province Patentee after: MCC Testing and Certification (Anhui) Co.,Ltd. Address before: 243061 No.528, middle section of Tianmen Avenue, Yushan District, Ma'anshan City, Anhui Province Patentee before: MAANSHAN MCC17 ENGINEERING SCIENCE & TECHNOLOGY Co.,Ltd. |
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