CN213632917U - Sleeve device for inspecting grouting filling degree - Google Patents
Sleeve device for inspecting grouting filling degree Download PDFInfo
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- CN213632917U CN213632917U CN202022551815.2U CN202022551815U CN213632917U CN 213632917 U CN213632917 U CN 213632917U CN 202022551815 U CN202022551815 U CN 202022551815U CN 213632917 U CN213632917 U CN 213632917U
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Abstract
The utility model discloses a sleeve device for checking grouting filling degree, which comprises a sleeve, a grout outlet fixedly connected with the right side surface of the sleeve, a grouting hole fixedly connected with the right side surface of the sleeve and positioned below the grout outlet, a connecting rib with one end positioned in the sleeve, a first plugging mechanism fixedly connected with the top of the sleeve and used for plugging the sleeve, and a second plugging mechanism fixedly connected with the bottom of the sleeve and used for plugging the sleeve, wherein the sleeve and the connecting rib are made of hard plastic materials, the sleeve and the connecting piece of the utility model are made of hard plastic materials, the sleeve and the connecting rib are easy to cut when slicing, the interference to the grouting material around the sleeve is small, the detection accuracy of the slicing method is improved, the slicing method plays a greater role in a laboratory, the first plugging mechanism and the second plugging mechanism are arranged, the sleeve is convenient to be plugged, thereby the mortar is in a closed system, the influence of external temperature and humidity is reduced, and the performance of the mortar is normally developed.
Description
Technical Field
The utility model relates to an assembly type structure field, concretely relates to sleeve device for checking grout filling degree.
Background
The steel bar sleeve grouting technology is one of the main modes of the assembled building steel bar connection. The filling degree of the grouting material directly influences the binding force of the steel bar and the sleeve, and finally influences the stability of the connection of the nodes of the fabricated building. At present, methods for detecting the filling degree of the grouting material include an embedded steel wire drawing method, a damping vibration method, an endoscope method, a resistance method, an ultrasonic detection method, an industrial CT method, a slicing method and the like. The damping vibration method and the pre-buried steel wire drawing method are used for qualitatively judging the grouting filling degree by detecting whether the pre-buried part is coated by the grouting material near a grout outlet of the sleeve, but the pre-buried part existing in a narrow space of the steel bar sleeve can influence the binding force of the steel bar, the sleeve and the grouting material. The endoscope method is similar to a gastroscope method, a reserved channel is formed near the reinforcing steel bar before the grouting material is not solidified, then the filling degree of the grouting around the reinforcing steel bar is detected through a three-dimensional measuring lens or a probe, but the reserved channel can reduce the binding force between the reinforcing steel bar and the grouting material, even if the filling material is filled in later period, the filling material and the original grouting material are difficult to form good binding, and the observation area is local. The resistance method judges grouting fullness according to the relative resistance change when not filled and when completely filled by pre-embedding the probes around the reinforcing steel bar, but the resistance is difficult to define when completely filled and is greatly influenced by the composition of grouting materials. The ultrasonic method judges the grouting filling degree through the propagation rate difference of ultrasonic waves in reinforcing steel bars, sleeves and grouting materials, but the difficulty in distinguishing signals in different areas is high, and the defect position cannot be judged. The industrial CT method observes the grouting fullness by means of an image reconstruction technology according to the attenuation conditions before and after rays pass through a test piece, the observation effect of the method is good, but the detection cost is high, and the method is difficult to realize in a common laboratory. The cutting method is to cut the sleeve into a series of slices and then detect the filling degree of the grouting material on each slice. The slicing method can be used for direct observation, can also be used for qualitative and quantitative evaluation by means of various microscopes and image processing software, is suitable for detection in a laboratory, but is high in strength due to the fact that the sleeve and the connecting rib are made of steel, and the grouting material around the sleeve and the connecting rib is easily damaged manually during cutting, so that judgment of results is affected.
The slicing method is mainly limited by the material of the used sleeves and connecting ribs. If reduce the influence to grout material around sleeve and the splice bar when cutting through changing their material, will make the section method play bigger effect in the aspect of the inspection grout filling degree in the laboratory.
Therefore, how to prepare a sleeve device more suitable for checking the grouting filling degree by a slicing method is a problem worthy of study.
Disclosure of Invention
To the not enough of above-mentioned prior art, the utility model aims at providing a more be applicable to the sleeve device of section method inspection grout filling degree.
The purpose of the utility model is realized like this:
the utility model provides a sleeve device for checking grout filling degree, includes the sleeve, is located grout outlet and slip casting mouth, the splice bar of sleeve homonymy, still includes the second plugging mechanism that is used for the shutoff of sleeve top first plugging mechanism and sleeve bottom shutoff, and sleeve, splice bar and plugging mechanism all adopt rigid plastic.
The sleeve is a full grouting sleeve or a half grouting sleeve; the distance between the central axis of the grouting opening and the bottom of the sleeve is 32-42 mm, the distance between the central axis of the grout outlet and the top of the sleeve is 25-30 mm, the inner diameters of the grout outlet and the grouting opening are 10-14mm, the wall thickness is the same as that of the sleeve, and the height is 40-60 mm.
The connecting rib comprises a smooth round rib body extending out of the sleeve and a threaded rib body extending into the sleeve; the nominal diameter of the thread rib body is 10-15mm smaller than the inner diameter of the sleeve, and the length of the thread rib body is 8 times of the nominal diameter of the thread rib body; the length of the light round rib body is 20-50 mm, and the diameter of the light round rib body is 8-10mm larger than the nominal diameter of the threaded rib body. .
First shutoff mechanism can be used for full grout sleeve and half grout sleeve, including with telescopic top fixed connection's first shutoff board, be located the center of first shutoff board and make the first centre bore that the splice bar passes through, be located the lower surface of first shutoff board and be used for holding the first circular recess at sleeve top, splice bar and first centre bore fixed connection.
The diameter of the first plugging plate is 3-5 mm larger than the diameter of the outer diameter of the sleeve, the diameter of the first central hole is 1-2 mm larger than the nominal diameter of the connecting rib, the depth of the first circular groove is 0.5-1.5mm, and the width of the first circular groove is 0.4-0.5 mm larger than the wall thickness of the sleeve.
The second plugging mechanism is used for a full grouting sleeve and is designed to be the same as the first plugging mechanism.
The second plugging mechanism is used for a semi-grouting sleeve and comprises a conical pipe fixedly connected with the bottom of the sleeve and a connecting pipe fixedly connected with the bottom of the conical pipe, and a connecting rib is connected with the inner thread of the connecting pipe.
The taper of the conical pipe is 60-75 degrees, and the sum of the lengths of the connecting pipe and the conical pipe in the vertical direction is 22-25 mm.
Has the positive and beneficial effects that: the sleeve and the connecting piece of the utility model are made of hard plastic, so that the sleeve and the connecting steel bar are easy to cut during trimming, the interference to the grouting material around the sleeve and the connecting steel bar is reduced, the detection accuracy of the slicing method is improved, and the slicing method plays a greater role in a laboratory; the arrangement of the first blocking mechanism and the second blocking mechanism facilitates the mortar in the barrel to be in a closed system, reduces the influence of external temperature and humidity, enables the mortar performance to be normally developed, and facilitates the adjustment of the positions of the connecting ribs.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a first blocking plate in the A direction of a full grouting or half grouting sleeve;
FIG. 3 is a schematic structural view of a second plugging plate in the B direction of the full grouting sleeve;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention;
in the figure, the following steps are carried out: sleeve 1, grout outlet 2, slip casting mouth 3, first shutoff board 4, splice bar 5, smooth circular rib body 6, screw thread rib body 7, second shutoff board 8, first circular recess 9, first centre bore 10, second circular recess 11, second centre bore 12, conical duct 13, connecting pipe 14.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in fig. 1, a sleeve device for checking grouting filling degree comprises a sleeve 1 and a connecting rib 5, wherein the sleeve 1 is a full grouting sleeve, and a grout outlet 2 and a grout inlet 3 are arranged on the same side; the distance between the central axis of the grouting port 3 and the bottom of the sleeve is 32mm, the distance between the central axis of the grout outlet 2 and the top of the sleeve is 30 mm, the inner diameters of the grout outlet 2 and the grouting port 3 are 12mm, the wall thickness is 3mm, and the height is 50 mm; the wall thickness of sleeve 1 is 3mm, the internal diameter is 32.5mm, length is 250mm, still include the first shutoff mechanism that is used for the shutoff of 1 top of sleeve, a second shutoff mechanism that is used for the shutoff of 1 bottom of sleeve, the setting of first shutoff mechanism and second shutoff mechanism, it is in a closed system to be convenient for make a section of thick bamboo interior mortar, the influence of external humiture has been reduced, make the mortar performance obtain normal development, sleeve 1 all adopts rigid plastic with splice bar 5, sleeve and splice bar easy cutting when making the side cut, reduce the grout material interference around it, the degree of accuracy that improves the section method and detects, make the section method play bigger effect in the laboratory.
The two connecting ribs 5 are arranged, and the two connecting ribs 5 are respectively positioned at the top and the bottom of the sleeve 1. The connecting ribs 5 are hard PVC plastic ribs and comprise two parts of smooth circular rib bodies 6 extending out of the sleeve 1 and threaded rib bodies 7 extending into the sleeve 1; the length of the smooth round rib body 6 is 30 mm, the diameter is 15mm, the nominal diameter of the threaded rib body 7 is 12mm, and the length is 96 mm.
As shown in fig. 2, the first blocking mechanism includes a first blocking plate 4 fixedly connected to the top of the sleeve 1, a first central hole 10 located at the center of the first blocking plate 4 and allowing the connecting rib 5 to pass through, and a first circular groove 9 located at the lower surface of the first blocking plate 4 and used for accommodating the top of the sleeve 1, wherein the connecting rib 5 is fixedly connected to the first central hole 10. The first plugging plate 4 is made of hard PVC plastics, the diameter of the first plugging plate 4 is 37mm, the thickness of the first plugging plate is 3mm, and the diameter of the first central hole 10 is 13 mm; first circular recess internal diameter 32mm, the degree of depth is 1mm, and the width is 3.4mm, and first circular recess 9 is used for making first shutoff board 4 and sleeve 1's top fix a position fast, puts into first circular recess 9 with sleeve 1's top, then passes through the viscose with first shutoff board 4 and sleeve 1's top fixed connection, the internal surface of first centre bore 10 passes through viscose and screw thread rib body 7 fixed connection.
As shown in fig. 3, the second blocking mechanism includes a second blocking plate 8 fixedly connected to the bottom of the sleeve 1, a second central hole 12 located at the center of the second blocking plate 8 and allowing the connecting rib 5 to pass through, and a second circular groove 11 located at the lower surface of the second blocking plate 8 and used for accommodating the bottom of the sleeve 1, wherein the connecting rib 5 is fixedly connected to the second central hole 12. The second plugging plate 8 is made of hard PVC plastics, the diameter of the second plugging plate 8 is 37mm, the thickness of the second plugging plate is 3mm, and the diameter of the second central hole 12 is 13 mm; the internal diameter of the second circular groove 11 is 32mm, the depth is 1mm, the width is 3.4mm, the second circular groove 9 is used for enabling the second plugging plate 8 and the bottom of the sleeve 1 to be rapidly positioned, the bottom of the sleeve 1 is placed into the second circular groove 11, then the second plugging plate 8 and the bottom of the sleeve 1 are fixedly connected through adhesive, and the inner surface of the second center hole 12 is fixedly connected with the threaded rib body 7 through the adhesive.
The test procedure was as follows: after the sleeve 1 is vertically fixed, the threaded rib bodies 7 are all inserted into the first central hole 10 and the second central hole 12, and then the first plugging plate 4, the second plugging plate 8 and the connecting ribs 5 are fixed at the top and the bottom of the sleeve 1 through adhesives. Grouting material is injected into the sleeve 1 from the grouting port 3 at the bottom end of the sleeve by a grouting gun until the grouting material flows out of the grout outlet 2, and a cork is plugged into the grout outlet 2 and the grouting port 3. After the sleeve 1 is slightly knocked for 10 times, grout is supplemented from the grouting opening 3, and the upper connecting rib and the lower connecting rib 5 are corrected to prevent the upper connecting rib and the lower connecting rib from deviating from the central line. After the completion of the grouting, curing was performed at 20 ℃. And after curing for 28d, taking down the sleeve 1, and slicing along the axial direction of one end of the sleeve 1 at the interval of 20 mm. And finally, observing the fullness of the mortar around the connecting rib 5 and at the inner edge of the sleeve 1 on the section through a three-position video microscope.
Example 2
As shown in fig. 4, the sleeve device for checking grouting filling degree comprises a sleeve 1 and a connecting rib 5, wherein the sleeve 1 is a semi-grouting sleeve, and a grout outlet 2 and a grout inlet 3 are arranged on the same side; the distance between the central axis of the grouting opening 3 and the bottom of the sleeve 1 is 42 mm, the distance between the central axis of the grout outlet 2 and the top of the sleeve 1 is 25mm, the inner diameter of the grout outlet and the grouting opening is 10mm, the wall thickness is 3mm, the height is 40mm, the wall thickness of the sleeve 1 is 3mm, the inner diameter is 27.3mm, the length is 155mm, the plugging device also comprises a first plugging mechanism for plugging the top of the sleeve 1, a second shutoff mechanism for the bottom shutoff of sleeve 1, the setting of first shutoff mechanism and second shutoff mechanism makes the interior mortar of a section of thick bamboo be in a closed system convenient to make, has reduced the influence of external humiture, makes the mortar performance obtain normal development, sleeve 1 and splice bar 5 all adopt rigid plastic, and sleeve and splice bar are easy to cut when making the section, reduce the grout material interference around it, improve the degree of accuracy that the section method detected, make the section method play bigger effect in the laboratory.
The two connecting ribs 5 are arranged, and the two connecting ribs 5 are respectively positioned at the top and the bottom of the sleeve 1. The connecting ribs 5 are made of hard PVC plastic ribs and comprise smooth round rib bodies 6 extending out of the sleeve 1 and threaded rib bodies 7 extending into the sleeve 1, and the nominal diameter and the length of the threaded rib bodies 7 are 14mm and 112 mm; the smooth round rib body 6 is 4mm in length and 16mm in diameter.
As shown in fig. 2, the first blocking mechanism includes a first blocking plate 4 fixedly connected to the top of the sleeve 1, a first central hole 10 located at the center of the first blocking plate 4 and allowing the connecting rib 5 to pass through, and a first circular groove 9 located at the lower surface of the first blocking plate 4 and used for accommodating the top of the sleeve 1, wherein the connecting rib 5 is fixedly connected to the first central hole 10. The first plugging plate 4 is made of hard PVC plastics, the diameter of the first plugging plate 4 is 34mm, the thickness of the first plugging plate is 3mm, and the diameter of the first central hole 10 is 15 mm; first circular recess internal diameter 27mm, the degree of depth is 1mm, and the width is 3.4mm, and first circular recess 9 is used for making first shutoff board 4 and sleeve 1's top fix a position fast, puts into first circular recess 9 with sleeve 1's top, then passes through the viscose with first shutoff board 4 and sleeve 1's top fixed connection, the internal surface of first centre bore 10 passes through viscose and screw thread rib body 7 fixed connection.
As shown in fig. 4, the second plugging mechanism includes a tapered tube 13 fixedly connected to the bottom of the sleeve 1, a connecting tube 14 fixedly connected to the bottom of the tapered tube 13, and a connecting rib 5 in threaded connection with the inside of the connecting tube 14. The taper of the conical pipe 13 is 60 degrees, and the sum of the lengths of the connecting pipe 14 and the conical pipe 13 in the vertical direction is 22 mm.
The test procedure was as follows: the threaded rib body 7 of one of the connecting ribs 5 is screwed into the connecting pipe 14 at the bottom of the sleeve 1, and the conical pipe 13 and the bottom of the sleeve 1 are fixed well through adhesive. The threaded rib body 7 of the other connecting rib 5 is inserted into the first central hole 10, and then the first plugging plate 4 and the connecting rib 5 are fixed at the top end of the sleeve 1. Grouting material is injected into the sleeve 1 from the grouting port 3 at the lower end of the sleeve 1 by a grouting gun until the grouting material flows out of the grout outlet 2, and a cork is plugged into the grout outlet 2 and the grouting port 3. After the sleeve 1 is slightly knocked for 10 times around, grout is supplemented from the grouting opening 3, the upper connecting rib 5 is corrected, and the position of the central line is prevented from deviating. After the completion of the grouting, curing was performed at 20 ℃. And after curing for 28d, taking down the sleeve 1, slicing along the axial direction of one end of the sleeve 1 at intervals of 20mm, and stopping when the conical tube 13 is cut. And finally, observing the filling conditions of the plastic steel bars on the section and the grouting material around the sleeve 1 in a back scattering mode through a scanning electron microscope.
Through comparing sleeve and splice bar and grout material bonding state around, discover the utility model discloses grout material around sleeve and splice bar does not receive the influence, and grout material around steel sleeve and the reinforcing bar appears becoming flexible and falls the sediment phenomenon because of the cutting. Furthermore, analysis of all sections by image method gave a filling degree of the grout of 96%.
The utility model discloses sleeve and connecting piece adopt the rigid plastic material, and sleeve and connecting reinforcement easily cut when slicing, and the grout material interference on its every side is little, improves the degree of accuracy that the section method detected, makes the section method exert bigger effect in the laboratory, and the setting of first shutoff mechanism and second shutoff mechanism makes the interior mortar of a section of thick bamboo be in a closed system convenient for, has reduced the influence of external humiture, makes the mortar performance obtain normal development.
Claims (8)
1. The utility model provides a sleeve device for verifying grout fillibility, includes sleeve, splice bar, its characterized in that: the device further comprises a first plugging mechanism fixedly connected with the top of the sleeve and used for plugging the sleeve, and a second plugging mechanism fixedly connected with the bottom of the sleeve and used for plugging the sleeve, wherein the sleeve and the connecting rib are made of hard plastics.
2. The sleeve device for inspecting grouting filling degree according to claim 1, wherein: the sleeve is a full grouting sleeve or a half grouting sleeve, and a grout outlet and a grouting opening are formed in the same side; the distance between the central axis of the grouting opening and the bottom of the sleeve is 32-42 mm, and the distance between the central axis of the grout outlet and the top of the sleeve is 25-30 mm.
3. The sleeve device for inspecting grouting filling degree according to claim 2, wherein: the connecting rib comprises a threaded rib body extending into the sleeve and a smooth round rib body extending out of the sleeve; the nominal diameter of the thread rib body is 10-15mm smaller than the inner diameter of the sleeve, and the length of the thread rib body is 8 times of the nominal diameter of the thread rib body; the length of the light round rib body is 20-50 mm, and the diameter of the light round rib body is 8-10mm larger than the nominal diameter of the threaded rib body.
4. The sleeve device for inspecting grouting filling degree according to claim 1, wherein: first shutoff mechanism is used for full grout sleeve and half grout sleeve, including with telescopic top fixed connection's first shutoff board, be located the center of first shutoff board and make the first centre bore that the splice bar passes through, be located the lower surface of first shutoff board and be used for holding the first circular recess at sleeve top, splice bar and first centre bore fixed connection.
5. The sleeve device for inspecting grouting filling degree according to claim 4, wherein: the diameter of the first plugging plate is 3-5 mm larger than the diameter of the outer diameter of the sleeve, the diameter of the first central hole is 1-2 mm larger than the nominal diameter of the connecting rib, the depth of the first circular groove is 0.5-1.5mm, and the width of the first circular groove is 0.4-0.5 mm larger than the wall thickness of the sleeve.
6. The sleeve device for inspecting grouting filling degree according to claim 1, wherein: the second plugging mechanism is used for a full grouting sleeve and is designed to be the same as the first plugging mechanism.
7. The sleeve device for inspecting grouting filling degree according to claim 1, wherein: the second plugging mechanism is used for a semi-full grouting sleeve and comprises a conical pipe fixedly connected with the bottom of the sleeve and a connecting pipe fixedly connected with the bottom of the conical pipe, and a connecting rib is connected with the inner thread of the connecting pipe.
8. The sleeve device for inspecting grouting filling degree according to claim 7, wherein: the taper of the conical pipe is 60-75 degrees, and the sum of the lengths of the connecting pipe and the conical pipe in the vertical direction is 22-25 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022551815.2U CN213632917U (en) | 2020-11-06 | 2020-11-06 | Sleeve device for inspecting grouting filling degree |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022551815.2U CN213632917U (en) | 2020-11-06 | 2020-11-06 | Sleeve device for inspecting grouting filling degree |
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| CN213632917U true CN213632917U (en) | 2021-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060372A1 (en) * | 2022-09-21 | 2024-03-28 | 中建三局科创产业发展有限公司 | Sleeve grouting plumpness detection system and detection method |
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2020
- 2020-11-06 CN CN202022551815.2U patent/CN213632917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060372A1 (en) * | 2022-09-21 | 2024-03-28 | 中建三局科创产业发展有限公司 | Sleeve grouting plumpness detection system and detection method |
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