CN219914835U - Detection device for grouting joint performance of steel bar sleeve - Google Patents
Detection device for grouting joint performance of steel bar sleeve Download PDFInfo
- Publication number
- CN219914835U CN219914835U CN202321057899.1U CN202321057899U CN219914835U CN 219914835 U CN219914835 U CN 219914835U CN 202321057899 U CN202321057899 U CN 202321057899U CN 219914835 U CN219914835 U CN 219914835U
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- Prior art keywords
- sleeve
- steel plate
- steel bar
- steel
- bracket
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 126
- 239000010959 steel Substances 0.000 title claims abstract description 126
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a detection device for the performance of a grouting joint of a steel bar sleeve, which comprises a bracket system, a sleeve grouting joint test piece and a positioning device, wherein the bracket system consists of a bracket, a first steel plate and a second steel plate, the first steel plate is fixedly connected with the bracket, and the second steel plate is movably connected with the bracket; the sleeve in the sleeve grouting joint test piece is a semi-connected grouting sleeve, the first steel bar is connected with the threaded connection end of the sleeve, the threaded connection end faces downwards, the bottom of the threaded end of the sleeve is supported at the top of the first steel plate, fine sand is pre-filled in the sleeve, and the bottom end of the second steel bar is inserted into the fine sand. The utility model can ensure that the first steel bar and the second steel bar to be connected are positioned on the same vertical line, and the problems of eccentricity, vertical deviation and the like are avoided, thereby avoiding the problem of unstable fixation of the steel bar connecting sleeve caused by steel bar errors.
Description
Technical Field
The utility model relates to the field of assembled buildings, in particular to a detection device for grouting joint performance of a steel bar sleeve.
Background
In the fabricated building, the connection between the reinforcing bars of the vertical prefabricated members is one of the difficulties of construction. In the concrete construction operation process, the full length adopts half-connection type sleeve, namely, the steel bars are pre-buried in concrete after being connected with the threaded ends of the sleeve when the upper layer prefabricated part is manufactured, the steel bars of the lower layer prefabricated part extend into the sleeve from the bottom, then concrete slurry is filled into the sleeve, the steel bars of the lower layer prefabricated part are wrapped after the concrete slurry is solidified, and meanwhile, the steel bars are bonded with the inner wall of the sleeve, so that the fastening of the upper layer steel bars and the lower layer steel bars is realized, and the assembly connection of the upper layer prefabricated part and the lower layer prefabricated part is realized.
Before grouting construction on the construction site, a steel bar sleeve grouting joint test piece is required to be manufactured according to relevant regulations, and after the test is qualified by a detection unit, the grouting construction on the site can be performed. The test piece detection of the grouting joint of the steel bar sleeve is an essential link for proving the quality of the grouting joint.
The prior operation frame for testing the influence of grouting fullness defects on joint performance adopts a normal operation frame, the perpendicularity of upper and lower steel bars of a head test piece in the manufacturing process is not easy to control, the steel bars at the grouting connecting ends are easy to generate vertical displacement in the manufacturing process, the anchoring length of the steel bars is influenced, slurry between the bottom of a sleeve and the steel bars at the lower part is easy to exude, and the blocking is difficult.
Accordingly, there is a need for a grouting operation frame for grouting sleeves to solve the above problems.
Disclosure of Invention
Based on the technical problems in the background art, the utility model provides a detection device for grouting joint performance of a steel bar sleeve, which can be used for manufacturing a steel bar sleeve grouting joint test piece when the connected steel bars are of the same diameter or different diameters, centered or deviated, and grouting is of different plumpness.
The utility model provides a detection device for the grouting joint performance of a steel bar sleeve, which comprises a bracket system, a sleeve grouting joint test piece and a positioning device.
The bracket system consists of a bracket, a first steel plate and a second steel plate, wherein the first steel plate is fixedly connected with the bracket, and the second steel plate is movably connected with the bracket;
the steel bars comprise first steel bars and second steel bars;
the first steel bar is connected with the threaded connection end of the sleeve, the first steel bar is fixed on the outer side surface of the first steel plate by adopting a positioning device, and the second steel bar is fixed on the outer side surface of the second steel plate by adopting a positioning device;
the sleeve in the sleeve grouting joint test piece is a semi-connected grouting sleeve, the first steel bar is connected with the threaded connection end of the sleeve, the threaded connection end faces downwards, the bottom of the threaded end of the sleeve is supported at the top of the first steel plate, fine sand is pre-filled in the sleeve, and the bottom end of the second steel bar is inserted into the fine sand.
The utility model further discloses the following technology:
preferably, the bracket is of a frame structure and comprises an upright post, a base steel plate, a longitudinal beam and a transverse beam, wherein the top surface of the longitudinal beam is flush with the top of the upright post.
Preferably, the first steel plate and the second steel plate are positioned in the same plumb face, the clear distance is larger than 1.5 times of the axial length of the sleeve, and the plate face is provided with a corresponding number of reserved holes according to the positioning of the joint test piece.
Preferably, the first positioning component comprises a bolt pair and reserved oblong holes at corresponding positions on the second steel plate, wherein the length of each oblong hole is 2 times greater than the inner diameter of the sleeve.
Preferably, at least 4 positioning devices are required for each joint test piece.
Preferably, the reinforcing bars include a first reinforcing bar and a second reinforcing bar;
preferably, the axes of the first reinforcing bar and the second reinforcing bar are located on the same vertical line in a side view direction of the bracket.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
1. the utility model can ensure that the first steel bar and the second steel bar to be connected are positioned on the same vertical line, and the problems of eccentricity, vertical deviation and the like are avoided, thereby avoiding the problem of unstable fixation of the steel bar connecting sleeve caused by steel bar errors.
2. The utility model adopts fine sand to replace mortar, ensures accurate control of grouting defect fullness index, and has simple and easy operation.
Drawings
Fig. 1 is a front view of a device for detecting grouting joint performance of a steel bar sleeve according to the present utility model;
fig. 2 is a plan view of a device for detecting grouting joint performance of a reinforcing steel bar sleeve according to the present utility model;
fig. 3 is a side view of a device for detecting grouting joint performance of a steel bar sleeve according to the present utility model;
FIG. 4 is a partial enlarged view of the portion A of FIG. 1;
FIG. 5 is a partial enlarged view of a portion B of FIG. 3
In the figure: 11-stand columns; 12-a base; 13-longitudinal beams; 14-transverse beams; 21-a first steel sheet; 22-a second steel plate; 23-a first positioning assembly; 31-sleeve; 32-a first rebar; 33-a second rebar; 34-a second positioning assembly; 35-changing and filling fine sand.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof.
In addition, it should be noted that (1) in this embodiment, only the non-filled and defective state of the sleeve grouting is provided, and when the grouting is in the filled state, fine sand is not required to be replaced; (2) In this embodiment, only the connection condition of the steel bars with the same diameter is provided, and when the steel bars are different in diameter, a hard plastic lining piece needs to be added in the second positioning assembly of the thinner steel bars, and the thickness of the hard plastic lining piece is half of the difference value between the diameters of the two steel bars; (3) In this embodiment, only the centering connection of the reinforcing bars is provided, and when the arrangement is offset, the offset value is controlled by the first positioning component on the second steel plate.
For the purpose of descriptive convenience only, some, but not all of the structures associated with the utility model are illustrated in the drawings.
Referring to fig. 1-5, the detection device for grouting joint performance of a steel bar sleeve provided by the utility model comprises a bracket system, a sleeve grouting joint test piece and a positioning device, and is characterized in that the bracket system consists of a bracket, a first steel plate 21 and a second steel plate 22, wherein the first steel plate 21 is fixedly connected with the bracket, and the second steel plate is movably connected with the bracket; the positioning device comprises a first positioning component 23 and a second positioning component 34, wherein the first positioning component 23 is used for movably connecting the second steel plate 22 with the bracket, and the second positioning component 34 is used for connecting the steel bars with the first steel plate 21 and the second steel plate 22; the sleeve 31 in the sleeve grouting joint test piece is a semi-connected grouting sleeve, the threaded connection end faces downwards, and fine sand 35 is pre-filled in the sleeve; the test indexes comprise the fullness of grouting defects, the connection specification of the steel bars, and the centering precision and offset value.
In this embodiment, the support is a frame structure, and includes a column 11, a base steel plate 12, a longitudinal beam 13 and a transverse beam 14, where the top surface of the longitudinal beam 13 is flush with the top of the column, and the outer side surface is located inside the plumb surface of the second steel plate 22, that is, there is no contact between the longitudinal beam and the second steel bar 33.
In this embodiment, the first steel plate 21 and the second steel plate 22 are located in the same plumb plane, the clear distance is greater than 1.5 times of the axial length of the sleeve 31, and the plate surface is provided with a corresponding number of preformed holes according to the positioning of the joint test piece, so as to install the second positioning assembly 34, and when the rigidity of the outer surface of the steel plate is insufficient, the back surface can be additionally provided with reinforcing ribs.
In this embodiment, the first positioning assembly 23 includes a bolt pair and a reserved oblong hole at a corresponding position on the second steel plate 22, where the length of the oblong hole is greater than 2 times of the inner diameter of the sleeve 31, and the oblong hole may be in an open form or a closed form.
In this embodiment, the second positioning components 34 include bolt pairs and arc-shaped fastening thin steel sheets, and each joint test piece has 4 second positioning components 34.
In this embodiment, the threaded connection end of the semi-connected grouting sleeve is supported on the top of the first steel plate 21 downwards, the sleeve 31 is preloaded with fine sand 35, the volume of the sleeve is controlled by the grouting defect fullness index, and the water content of the sleeve is controlled by the optimal water content index.
In this embodiment, the first steel bar 32 is connected to the threaded end of the sleeve 31, and the bottom of the threaded end of the sleeve 31 is supported on the top of the first steel plate 21, the first steel bar 32 is fixed to the outer side of the first steel plate 21 by using the second positioning assembly 34, and the second steel bar 33 is fixed to the outer side of the second steel plate 22 by using the positioning assembly 34.
In this embodiment, the axes of the first steel bar 32 and the second steel bar 33 meet the centering accuracy requirement in both the side view direction and the front view direction of the bracket.
In the utility model, the first steel plate 21 and the second steel plate 22 are rectangular plates, various types of steel bars can be arranged on the rectangular plates, in the specific construction process, the first steel plate 21 and the second steel plate 22 are positioned in the same plumb face, the upper steel bar to be connected and the lower steel bar are ensured to be positioned on a vertical line, the problems of eccentricity, vertical deviation and the like are avoided, the problem that a steel bar connecting sleeve is not firm due to steel bar errors is avoided, meanwhile, the offset of the second steel plate relative to the first steel plate is adjusted through fine adjustment of the second steel plate 22, batch operation and control of the offset index of a test piece can be realized, the detection efficiency is improved, the influence of the thickness coordination different diameter difference value of a hard plastic lining sheet on the centering precision is improved, the first steel bars 32 of various types are pre-buried in concrete after being connected with the threaded ends of the sleeve, the second steel bars 33 extend into the sleeve, and then the concrete slurry is filled into the sleeve, so that the fastening of the first steel bars 32 and the second steel bars 33 is realized, and the assembly connection is realized.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. A detection device for reinforcing bar sleeve grout joint performance, including support system, sleeve grout joint test piece, positioner, its characterized in that:
the bracket system consists of a bracket, a first steel plate (21) and a second steel plate (22), wherein the first steel plate (21) is fixedly connected with the bracket, and the second steel plate (22) is movably connected with the bracket;
the rebars include a first rebar (32) and a second rebar (33);
the first steel bar (32) is connected with the threaded connection end of the sleeve (31), the first steel bar (32) is fixed on the outer side surface of the first steel plate (21) by adopting a positioning device, and the second steel bar (33) is fixed on the outer side surface of the second steel plate (22) by adopting a positioning device;
the sleeve (31) in the sleeve grouting joint test piece is a semi-connected grouting sleeve, the first steel bar (32) is connected with the threaded connection end of the sleeve (31), the threaded connection end faces downwards, the bottom of the threaded end of the sleeve (31) is supported at the top of the first steel plate (21), fine sand (35) is pre-filled in the sleeve (31), and the bottom end of the second steel bar (33) is inserted into the fine sand (35).
2. The device for detecting grouting joint performance of a steel bar sleeve according to claim 1, wherein the bracket is of a frame structure and comprises a stand column (11), a base steel plate (12), a longitudinal beam (13) and a transverse beam (14), wherein the top surface of the longitudinal beam (13) is flush with the top of the stand column.
3. The device for detecting grouting joint performance of a steel bar sleeve according to claim 1, wherein the first steel plate (21) and the second steel plate (22) are positioned in the same plumb face, the clear distance is larger than 1.5 times of the axial length of the sleeve (31), and the face of the plate is provided with a corresponding number of reserved holes according to the positioning of a joint test piece.
4. The device for detecting grouting joint performance of steel bar sleeve according to claim 1, wherein the first positioning assembly (23) comprises a bolt pair and a reserved oblong hole at a corresponding position on the second steel plate (22), and the length of the oblong hole is larger than 2 times of the inner diameter of the sleeve (31).
5. A testing device for the performance of a grouting joint for steel reinforcement sleeves according to claim 1, wherein at least 4 positioning devices are required for each joint test piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057899.1U CN219914835U (en) | 2023-05-04 | 2023-05-04 | Detection device for grouting joint performance of steel bar sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057899.1U CN219914835U (en) | 2023-05-04 | 2023-05-04 | Detection device for grouting joint performance of steel bar sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219914835U true CN219914835U (en) | 2023-10-27 |
Family
ID=88429126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321057899.1U Active CN219914835U (en) | 2023-05-04 | 2023-05-04 | Detection device for grouting joint performance of steel bar sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219914835U (en) |
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2023
- 2023-05-04 CN CN202321057899.1U patent/CN219914835U/en active Active
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