CN211528406U - A grout sleeve for detecting prefabricated concrete structure grout plumpness - Google Patents
A grout sleeve for detecting prefabricated concrete structure grout plumpness Download PDFInfo
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- CN211528406U CN211528406U CN201921798325.3U CN201921798325U CN211528406U CN 211528406 U CN211528406 U CN 211528406U CN 201921798325 U CN201921798325 U CN 201921798325U CN 211528406 U CN211528406 U CN 211528406U
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Abstract
The utility model provides a grouting sleeve for detecting the grouting fullness of an assembled concrete structure, which comprises a sleeve body and a sensor; the wall of the sleeve body is provided with a grouting opening and a slurry discharging opening; the grouting opening and the grout discharging opening are arranged at intervals in the axial direction or the length direction of the sleeve body; the wall of the sleeve body is further provided with a mounting hole, and the sensor is arranged in the mounting hole and does not protrude inwards beyond the inner wall of the sleeve body, so that the grouting fullness in the sleeve body can be detected. The utility model discloses simple structure forms dedicated having in steel sleeve and detects the steel sleeve of assembled concrete structure grout plumpness function to the sensor is built-in that has the full degree of measurement grout material, when the component is produced, uses this sleeve to replace ordinary sleeve, and the component of production need not to install the sensor when the grout or need not to bore behind the grout and get the measuring orifice, can accomplish the grout plumpness and measure.
Description
Technical Field
The utility model belongs to the technical field of construction industry, assembled concrete structure and engineering quality detection technique and specifically relates to a grout sleeve for detecting assembled concrete structure grout plumpness is related to.
Background
At present, the steel bar sleeve connection is a common steel bar connection mode in an assembled concrete structure, and a grouting sleeve is an important part in the production of prefabricated parts. The method comprises the following steps of (1) dividing the method into a casting grouting sleeve and a machining grouting sleeve according to a machining mode; as shown in fig. 1 and 2, the grout sleeve is divided into a full grout sleeve and a half grout sleeve in a structural form.
According to the corresponding regulation requirement, when reinforcing steel bars with different diameters are connected, the anchoring length of the reinforcing steel bars is determined according to the depth requirement of the grouting sleeve end for reinforcing steel bar anchoring.
The existing methods for detecting the anchoring length and the saturation of the grouting sleeve mainly comprise two types, one type is that a sensor or a measuring device is arranged behind a grout discharging hole before and after grouting to test the grouting saturation; the other type is that grouting construction is finished, after grouting material is solidified, grouting fullness degree test is carried out by means of punching or ray and the like; both methods cannot measure the grouting fullness of the rear sleeve in the double-row sleeve.
In addition, the grout outlet pipe is generally bent to different degrees, and the method even cannot smoothly complete the grouting fullness detection of the single-row sleeve under the condition of obvious bending.
In addition, the existing grouting sleeve product does not have the function of installing a measuring sensor, the sensor can be installed only after the construction is finished and a measuring position is not accurate. To the full grout sleeve, arrange that there is the reinforcing bar to run through in the thick liquid hole position sleeve, inside the sensor can not insert the sleeve, influence the grouting material testing accuracy degree after the solidification. Moreover, the measurement work is complicated and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a grout sleeve for detecting prefabricated concrete structure grout plumpness to solve foretell at least one technical problem who exists among the prior art.
In order to solve the technical problem, the utility model provides a pair of a grout sleeve for detecting prefabricated concrete structure grout plumpness for steel bar connection in the concrete member, it includes: a sleeve body and a sensor;
the wall of the sleeve body is provided with a grouting opening and a slurry discharging opening; the grouting opening and the grout discharging opening are arranged at intervals in the axial direction or the length direction of the sleeve body;
the wall of the sleeve body is further provided with a mounting hole, and the sensor is arranged in the mounting hole and does not protrude inwards beyond the inner wall of the sleeve body, so that the grouting fullness in the sleeve body can be detected.
The utility model discloses simple structure forms dedicated having in steel sleeve and detects the steel sleeve of assembled concrete structure grout plumpness function to the sensor is built-in that has the full degree of measurement grout material, when the component is produced, uses this sleeve to replace ordinary sleeve, and the component of production need not to install the sensor when the grout or need not to bore behind the grout and get the measuring orifice, can accomplish the grout plumpness and measure.
The sensor is embedded into the cylinder wall mounting hole of the sleeve body in a threaded connection mode or a buckling mode, different media can be measured, and the surface of the sensor (on the cross section of the sleeve) does not exceed the inner wall of the sleeve body, so that the sensor can be prevented from being damaged by inserted steel bars in the hoisting process of the component.
Further, the sensor comprises a shell and a measuring unit, wherein the shell is arranged in the mounting hole and does not protrude inwards beyond the inner wall of the sleeve body; the measuring unit is arranged in the shell, and the inner surface of the measuring unit and the bottom surface of the inner side of the shell are arranged at intervals.
The internal surface (the surface that is close to sleeve body inner wall one side) and the inboard bottom surface of casing (the surface that is close to sleeve body inner wall one side) interval setting of measuring unit for the measuring unit further keeps away from the reinforcing bar of sleeve body, avoids damaging.
The sensor further comprises a lead or a guide pipe, one end of the lead or the guide pipe is connected with the sensor, and the other end of the lead or the guide pipe extends out of the surface of the concrete member and is used for guiding a sensor signal out of the concrete member.
Further, a connector or contact device (including but not limited to a magnetic contact device, a spring contact device, etc.) is included, which is connected to the sensor for conducting the sensor signal out of the concrete member.
Furthermore, two ends of the sleeve body in the length direction are respectively provided with a first reinforcing steel bar inlet and a second reinforcing steel bar inlet for inserting or screwing reinforcing steel bars; in the length direction of sleeve body, the grout mouth is close to first reinforcing bar import setting, arrange the thick liquid mouth and be close to the setting of second reinforcing bar import.
Further, in a projection plane perpendicular to the length direction of the sleeve body (parallel to the cross section of the sleeve body), the sensor is arranged opposite to the slurry outlet (namely, the sensor is arranged at the position opposite to the slurry outlet).
Arrange the thick liquid mouth and arrange the thick liquid union coupling, the sensor with arrange the thick liquid mouth and set up relatively, when can avoiding the grout liquid level to descend, the grout backward flow in the row thick liquid pipe causes the sensor surface to pile up the grout, causes the grout plumpness measuring result erroneous judgement of the back grout of solidification.
Further, the sensors include, but are not limited to, damped vibration sensors, resistive/resistivity type sensors, capillary sensors, and the like.
The mounting hole generally sets up the grout material at the sleeve body and sets for high position to the sensor can the accurate measurement grout highly whether reach control height.
Preferably, the sensor is arranged flush or offset with the discharge port in the length direction of the sleeve body (i.e. the height direction when the sleeve body is upright).
Furthermore, the number of the mounting holes is a plurality, and the mounting holes are arranged at intervals in the length direction of the sleeve body; the sensor is optionally disposed in one or more of the mounting holes.
Wherein, 2 ~ 6 the mounting hole interval sets up to can be according to the grout high requirement of difference, set up the sensor on the mounting hole of difference, from this, a grout sleeve can satisfy different engineering specification requirements, and when more nimble, the monitoring precision is also higher.
Furthermore, the sensor also comprises a plugging head for plugging the mounting hole in which the sensor is not embedded. Wherein the blocking head is preferably screwed into the mounting hole in a threaded manner to block the mounting hole without the sensor.
The utility model discloses well sleeve body and sensor constitute integrated intelligent device, and the sensor gesture is fixed, can the accurate relative position who measures grout height and sensor, can distinguish that the grout is not full (not reach the sensor position), reach the sensor central point and put, exceed three kinds of states in sensor top surface position, provide more accurate monitoring, detection technique method for sleeve grout quality control.
In addition, the grouting sleeve and the fullness detection sensor are integrated, so that the measurement precision of the sensor is greatly improved, the survival rate of the sensor is improved, and the factors of position deviation, angle error, complex process and the like of the sensor after installation are eliminated; the method is suitable for monitoring/detecting the grouting fullness of the single-row sleeve and the double-row sleeve, is not influenced when the grout discharge pipe is bent, is an initial creation in the industry, and solves a key node quality control problem of application and popularization of an assembled PC structure.
When the novel component is used, the field installation grouting construction of the novel component is the same as that of a common component, and the grouting fullness testing effect is not influenced by the hoisting and grouting construction; and after grouting is finished, grouting plumpness testing can be performed before grouting material is cured, and the situation that grouting is not full can be supplemented through a grouting opening. After the grouting material is cured after the engineering construction is finished, the construction quality inspection and acceptance detection can be carried out, and the grouting construction quality is evaluated.
Drawings
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 embodiments or the description in 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.
FIG. 1 is a schematic structural diagram of a fully grouted sleeve in the prior art;
FIG. 2 is a schematic structural view of a prior art half-grouting sleeve;
fig. 3 is a schematic structural view of a grouting sleeve provided in embodiment 1 of the present invention;
fig. 4 is a partially enlarged view of a mounting hole in a grout sleeve according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a grouting sleeve provided in embodiment 2 of the present invention.
Reference numerals:
10-a sleeve body; 10 a-the inner wall surface; 11-grouting port; 12-a pulp discharge port; 13-a first rebar inlet; 14-a second rebar inlet; 15-mounting holes; 20-a sensor; 21-a housing; 22-a measurement unit; 30-a wire; 40-an adapter; and (5) 50-plugging heads.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
Example 1
As shown in fig. 3 to 4, the present embodiment provides a grouting sleeve for detecting grouting fullness of a fabricated concrete structure, which is used for rebar connection in a concrete member, and comprises: a sleeve body 10 and a sensor 20.
The wall of the sleeve body 10 is provided with a grouting opening 11 and a slurry discharging opening 12; the grouting port 11 and the grout discharging port 12 are arranged at intervals in the axial direction or the length direction of the sleeve body 10.
The wall of the sleeve body 10 is further provided with a mounting hole 15 for communicating the inside and the outside of the sleeve body, and the sensor 20 is arranged in the mounting hole 15 and does not protrude inwards beyond the inner wall surface 10a of the sleeve body 10 for detecting the grouting fullness in the sleeve body 10.
The utility model discloses simple structure embeds the sensor 20 that has the plumpness of measuring grout material and forms the dedicated steel sleeve that has the grout plumpness function of detecting assembled concrete structure in steel sleeve, when the component is produced, uses this sleeve to replace ordinary sleeve, and installation sensor 20 or need not to bore behind the grout and get the measuring orifice when the component of production need not the grout, can accomplish the grout plumpness and measure.
The sensor 20 is embedded into the cylindrical wall mounting hole of the sleeve body 10 in a threaded connection mode or a buckling mode, different media can be measured, and the surface of the sensor 20 (on the cross section of the sleeve) does not exceed the inner wall surface of the sleeve body 10, so that the sensor 20 cannot be damaged by inserted steel bars in the component hoisting process.
The sensor 20 comprises a shell 21 and a measuring unit 22, wherein the shell 21 is arranged in the mounting hole and does not protrude inwards beyond the inner wall of the sleeve body 10; the measuring unit 22 is disposed in the housing 21, and the inner surface of the measuring unit 22 is spaced from the inner bottom surface of the housing 21.
The sensor 20 is retracted in the mounting hole 15, the measuring unit 22 is further retracted in the casing 21, and the inner surface of the measuring unit 22 and the inner bottom surface of the casing 21 are spaced apart, so that the measuring unit 22 is further away from the steel bars of the sleeve body 10 to avoid damage.
The embodiment further comprises a lead 30, one end of the lead 30 is connected with the sensor 20, and the other end of the lead 30 or the conduit extends out of the surface of the concrete member for guiding the signal of the sensor 20 out of the concrete member. It is of course also possible to use connectors or contact means in connection with the sensor 20 for leading the sensor 20 signal out of the concrete element.
The sleeve body 10 is provided with a first reinforcing steel bar inlet 13 and a second reinforcing steel bar inlet 14 at two ends in the length direction for inserting or screwing reinforcing steel bars; in the length direction of the sleeve body 10, the grouting opening 11 is arranged close to the first reinforcing steel bar inlet 13, and the grout outlet 12 is arranged close to the second reinforcing steel bar inlet 14. When the semi-grouting sleeve structure is adopted, the second rebar inlet 14 may be connected with the rebar by a threaded structure.
The sensor 20 is arranged opposite to the slurry outlet 12 in a projection plane perpendicular to the length direction of the sleeve body 10 (i.e. parallel to the cross section of the sleeve body 10), i.e. the sensor 20 is arranged at a position opposite to the slurry outlet.
Arrange grout mouth 12 and pass through adapter 40 and arrange the grout union coupling, sensor 20 with arrange grout mouth 12 and set up relatively, when can avoiding the grout liquid level to descend, the grout backward flow in the row grout pipe causes sensor 20 surface to pile up the grout, causes the grout plumpness measuring result erroneous judgement of solidification back grout.
The sensors 20 include, but are not limited to, damped vibration sensors, resistive/resistivity type sensors, capillary sensors, and the like.
The installation hole 15 is generally provided at a set height position of the grout of the sleeve body 10 so that the sensor 20 can precisely measure whether the grout height reaches a control height. In the length direction of the sleeve body 10 (i.e., the height direction when the sleeve body 10 is erected), the sensor 20 is disposed either flush with or offset from the slurry discharge port 12.
The utility model discloses well sleeve body 10 and sensor 20 constitute integrated intelligent device, and the sensor 20 gesture is fixed, can accurately measure the relative position of grout height and sensor 20, can distinguish that the grout is not full (not reacing sensor 20 position), reachs sensor 20 central point and puts, surpass three kinds of states in sensor 20 top surface position, provide more accurate monitoring, detection technique method for sleeve grout quality control.
In addition, the grouting sleeve and the fullness detection sensor 20 are integrated, so that the measurement precision of the sensor 20 is greatly improved, the survival rate of the sensor 20 is improved, and the factors such as position deviation, angle error, complex process and the like of the sensor 20 after installation are eliminated; the method is suitable for monitoring/detecting the grouting fullness of the single-row sleeve and the double-row sleeve, is not influenced when the grout discharge pipe is bent, is an initial creation in the industry, and solves a key node quality control problem of application and popularization of an assembled PC structure.
When the novel component is used, the field installation grouting construction of the novel component is the same as that of a common component, and the grouting fullness testing effect is not influenced by the hoisting and grouting construction; and after grouting is finished, grouting plumpness testing can be performed before grouting material is cured, and the situation that grouting is not full can be supplemented through the grouting opening 11. After the grouting material is cured after the engineering construction is finished, the construction quality inspection and acceptance detection can be carried out, and the grouting construction quality is evaluated.
Example 2
The structure of the present embodiment is substantially the same as that of embodiment 1, except that:
the number of the mounting holes 15 is 2, and the 2 mounting holes 15 are arranged at intervals in the length direction of the sleeve body 10; the sensors 20 may be selectively positioned in one or all of the 2 mounting holes 15.
This embodiment is through with 2 ~ 6 mounting hole 15 interval sets up to can set up sensor 20 on different mounting hole 15 according to the grout high requirement of difference, from this, a grout sleeve can satisfy different engineering specification requirements, and when more nimble, the monitoring accuracy is also higher. Or, by arranging a plurality of sensors, the change rule of the slurry during pouring and curing can be detected dynamically and more accurately.
In addition, the sensor device further comprises a blocking head 50 for blocking the mounting hole 15 in which the sensor 20 is not inserted. Wherein the blocking heads are preferably screwed into the mounting holes 15 to block the mounting holes 15 without the sensors 20 mounted thereon.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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 or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A grout sleeve for detecting prefabricated concrete structure grout plumpness for the steel bar connection in the concrete member, its characterized in that, it includes: a sleeve body and a sensor;
the wall of the sleeve body is provided with a grouting opening and a slurry discharging opening; the grouting opening and the grout discharging opening are arranged at intervals in the axial direction or the length direction of the sleeve body;
the wall of the sleeve body is further provided with a mounting hole, and the sensor is arranged in the mounting hole and does not protrude inwards beyond the inner wall of the sleeve body, so that the grouting fullness in the sleeve body can be detected.
2. A grout sleeve according to claim 1, wherein the sensor comprises a housing and a measuring unit, the housing being disposed within the mounting hole and not projecting inwardly beyond the inner wall of the sleeve body; the measuring unit is arranged in the shell, and the inner surface of the measuring unit and the bottom surface of the inner side of the shell are arranged at intervals.
3. A grouting sleeve as claimed in claim 1, further comprising a wire or conduit having one end connected to the sensor and the other end extending beyond the surface of the concrete element for conducting a sensor signal out of the concrete element.
4. A grout sleeve according to claim 1, further comprising a connector or contact means connected to the sensor for conducting a sensor signal out of the concrete component.
5. The grouting sleeve of claim 1, wherein both ends of the sleeve body in a length direction thereof are respectively provided with a first reinforcing bar inlet and a second reinforcing bar inlet for inserting or screwing a reinforcing bar; in the length direction of sleeve body, the grout mouth is close to first reinforcing bar import setting, arrange the thick liquid mouth and be close to the setting of second reinforcing bar import.
6. A grouting sleeve as claimed in claim 1, characterised in that the sensor is located opposite the grout outlet in a projection plane perpendicular to the length of the sleeve body.
7. A grout sleeve according to claim 1, wherein the sensors include but are not limited to damped vibration sensors, resistance/resistivity sensors, capillary sensors.
8. A grouting sleeve as claimed in claim 1, wherein the number of the mounting holes is several, and the several mounting holes are arranged at intervals in the length direction of the sleeve body; the sensor is optionally disposed in one or more of the mounting holes.
9. The grouting sleeve of claim 8, further comprising a plugging head for plugging a mounting hole in which the sensor is not fitted; the plugging head is screwed into the mounting hole in a threaded mode to seal the mounting hole without the sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798325.3U CN211528406U (en) | 2019-10-24 | 2019-10-24 | A grout sleeve for detecting prefabricated concrete structure grout plumpness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798325.3U CN211528406U (en) | 2019-10-24 | 2019-10-24 | A grout sleeve for detecting prefabricated concrete structure grout plumpness |
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| CN211528406U true CN211528406U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921798325.3U Active CN211528406U (en) | 2019-10-24 | 2019-10-24 | A grout sleeve for detecting prefabricated concrete structure grout plumpness |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326940A (en) * | 2020-09-28 | 2021-02-05 | 山东省建筑科学研究院有限公司 | Assembled concrete sleeve grouting fullness measuring device and working method |
| CN113846769A (en) * | 2021-09-09 | 2021-12-28 | 富利建设集团有限公司 | Precast concrete shear force wall installation slip casting detection device |
-
2019
- 2019-10-24 CN CN201921798325.3U patent/CN211528406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326940A (en) * | 2020-09-28 | 2021-02-05 | 山东省建筑科学研究院有限公司 | Assembled concrete sleeve grouting fullness measuring device and working method |
| CN113846769A (en) * | 2021-09-09 | 2021-12-28 | 富利建设集团有限公司 | Precast concrete shear force wall installation slip casting detection device |
| CN113846769B (en) * | 2021-09-09 | 2023-04-18 | 富利建设集团有限公司 | Precast concrete shear force wall installation slip casting detection device |
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