CN208076437U - A kind of grouting material plumpness detection device, the detection device and grout sleeve for connecting reinforcing bar - Google Patents
A kind of grouting material plumpness detection device, the detection device and grout sleeve for connecting reinforcing bar Download PDFInfo
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- CN208076437U CN208076437U CN201721897216.8U CN201721897216U CN208076437U CN 208076437 U CN208076437 U CN 208076437U CN 201721897216 U CN201721897216 U CN 201721897216U CN 208076437 U CN208076437 U CN 208076437U
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- precast concrete
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Abstract
The utility model is related to a kind of grouting material plumpness detection devices, connect the detection device and grout sleeve of reinforcing bar, the detection device of reinforced bar sleeve grouting connector grouting material plumpness in especially a kind of precast concrete, connect the detection device and its grout sleeve of reinforcing bar, use electric resistance measuring apparatus, measure the resistance value between grouting material in the metal detection line for being inserted into grout sleeve inner wall and connector grouting duct, when measurement result is below predetermined resistance, then think that the grouting material at sleeve lining metal detection line end is full, when being more than predetermined resistance such as measurement result, then judge that the grouting material in connector at test point is not full, that is the grouting material plumpness of connector does not meet quality requirement.Any position of precast concrete is not destroyed, method is simple, highly practical, fast and reliable, can solve prefabricated concrete structure prefabricated post, the non-destructive testing judgement problem of vertical reinforcement sleeve grouting jointing grouting material plumpness in dry wall.
Description
Technical field
The utility model is related to a kind of grouting material plumpness detection device, connect the detection device of reinforcing bar and the set that is in the milk
The detection device of cylinder more particularly to a kind of precast concrete inner sleeve grouting connector grouting material plumpness connects reinforcing bar
Detection device and its grout sleeve, specially a kind of vertical reinforcement in prefabricated concrete structure prefabricated post, dry wall
The detection method of the grouting material plumpness of sleeve grouting jointing, it is simple, convenient using the utility model, quick, high
It imitates, is at low cost, better than the lossless detection method of existing grouting connector grouting material plumpness.
Background technology
Sleeve grouting connection is the main connection that prefabricated concrete structure builds vertical prefabricated components Reinforcement
Method, grouting quality of connection are the key points for influencing building safety.National sector standard《Bar connecting grout sleeve》JG/
T398 defines the requirement to grout sleeve structure and material,《Prefabricated concrete structure technical regulation》JGJ 1,《Reinforcing bar set
Cylinder grouting connection application technology regulation》JGJ355 is made that specific rule to the application and examination of reinforcing bar grout sleeve connection method
It is fixed.When being produced using the precast concrete of pre-buried grout sleeve connection, longitudinally connected reinforcing bar and the grout sleeve one of component
End is linked together using mechanical joining methods, or in the grouting connecting cavity at the prefabricated end of connection reinforcing bar insertion sleeve, sleeve is set
Close in precast concrete bottom position and be fixed on component cheek board, sleeve lateral wall upper position is set for being vented
With the grout hole for being in the milk into sleeve of the slurry outlet and lower part of grouting material outflow set by the prefabricated components bottom,
Be drawn out to the outer surfaces of prefabricated components by connecting plastic tube, all being installed with each reinforcing bar of sleeved steel reinforcement cage, built-in fitting and
After fixing, casting concrete, then jolt ramming, maintenance molding, are finally made the concrete prefabricated elements such as wall or column, prefabricated
External surface of structural member side wall there are the grouting of each sleeve and pulp pore, remove to member profile size, connection steel by manufacture front part
Outside the position of muscle and grout sleeve is checked, also patency inspection is carried out one by one to sleeve grout hole, the slurry outlet on component
It looks into, construction and installation scene is transported to after qualified, precast concrete is hung into specified structure layer specified position with lifting equipment, is pacified
In the existing structure in lower part, when installation, the connection reinforcing bar that substructure is stretched out upwards is inserted respectively into the pre- of top installation
In the corresponding sleeve of member bottom section processed, the grouting connection of member reinforcing steel bar is then carried out.
According to national sector standard《Reinforced bar sleeve grouting connection application technology regulation》The regulation of JGJ355, sleeve grouting connect
It includes that the examination to grouting material test block pressure resistance intensity and the inspection of the closely knit plumpness of grouting are tested to the examination of grouting quality to connect construction
It receives, the grouting material progress compression strength detection that the grouting material compression strength test block left and taken by scene can be to finally hardening, and structure
In part reinforced bar sleeve grouting connector the closely knit plumpness of grouting at present can only by component surface grouting and pulp pore at
The full situation observation of grouting material is judged, is also such in the quality inspection side of foreign applications grouting connection.
The country to sleeve be in the milk closely knit plumpness Study on nondestructive detection method work carried out the several years, for above-mentioned matter
The connector of amount problem, existing visual examination and endoscopic observation method can not all be seen inside the full pulp pore of grouting material
Situation, therefore emphasis is fallen on research lossless detection method, it is proposed that industrial x-ray method, elastic wave or supercritical ultrasonics technology, pre-buried biography
Sensor method, steel wire drawing method etc., but these methods respectively have deficiency in terms of practicability, the scope of application, accuracy of judgement degree and cost,
It is difficult to be widely applied in engineering.This problem of the key point of fabricated construction-connector grouting plumpness quality judging
It does not solve, the safety reliability of assembly concrete building structure is just difficult to determine, seriously affects the scale of building industrialization
Development, therefore it is badly in need of preferably grouting plumpness lossless detection method.
Prefabricated concrete structure building vertical precast shear wall Reinforcement connection method in also have it is a kind of about
Beam starches anchor overlap joint connection, and connecting node is constructed in national sector standard《Prefabricated concrete structure technical regulation》JGJ 1-
It is described in the A.0.2 item of 2014 appendix A, the installation of the connection method is done in the 12nd chapter Section 3 of the standard
Corresponding requirements, the 13.2.2 articles in the 13rd chapter of the standard proposes grouting and answers closely knit full requirement.Constraint slurry anchor
The Joining Technology of lap joint is：When precast concrete produces, molding is reserved by pre-buried connection reinforcing bar in component
Hole is longitudinally arranged cyclic annular stirrup in pre-buried connection reinforcing bar and reserved forming hole border, and hole inner cavity passes through grouting and exhaust duct aperture
It is connected to prefabricated components surface, component is identical as the sleeve grouting mounting process of connecting elements when engineering site is installed and connected,
The connection reinforcing bar stretched out in substructure is inserted into the preformed hole of corresponding steel bar connector of this precast concrete, is sealed
After blocking up reserved grouting seam between hole end surface or component, mixes performance and meet the special of JGJ 1-2014 tables 4.2.3 requirements
Grouting material pours into preformed hole, until the gap between connection bar connecting and reserved hole wall is filled with, from the pulp of component surface
Good grouting and slurry outlet are blocked after the outflow of hole, on component all connectors grouting finish, after grouting material hardening, each jointing
The connection reinforcing bar and reserved hole wall of the interior grouting material poured into and insertion are combined closely, i.e., by precast concrete and lower junction
Structure links together.Grouting connection construction technique of the connector in component erecting bed is identical as sleeve grouting jointing, because
The problem of this is detected there is also connector grouting plumpness, is examined although the methods of ultrasonic wave or ray may be used in the connector
It surveys, but the problem of due to property easy to detect and testing cost, it is main using going out to component surface using seldom in Practical Project
The method of the plumpness observation of grouting material judges the grouting material plumpness quality of connector in slurry pore, with above-mentioned sleeve grouting connector
The problem of equally possible appearance detection erroneous judgement.
Utility model content
A kind of detection method for jointing grouting material plumpness of being in the milk the utility model proposes vertical reinforcement sleeve, it is
The special measurement device that line forms is measured by insulation measurement instrument and metal by using a kind of, in precast concrete
When production, the detection hole set by grout sleeve top is passed through to be inserted into grouting set one end of the metal detection line of special measurement device
Tube inner chamber, it is another to bring out outside prefabricated components surface, concrete members are then poured, precast concrete is made；Component exists
Erecting bed carries out grouting connection construction, after grouting, using in insulation measurement instrument measurement precast concrete
The metal that each sleeve grouting connector is connected to component surface by sleeve detection hole measures in line and grouting duct between grouting material
Resistance value, determine that grout sleeve inner cavity metal measures with resistance value measurement result and remove at line end with the presence or absence of grouting material, into
And judge the method for grouting plumpness quality in sleeve.
Grout sleeve upper portion side wall in precast concrete penetrates through the detection hole inside and outside sleeve there are one setting, by being in the milk
Sleeve is connected to the pulp pore on precast concrete surface and grouting pore is blocked with closeouts, and one after grouting material initial set
In the section time, the closeouts in pulp pore and grouting pore are removed.
The technical principle of the utility model is：Grouting material in vertical reinforcement sleeve grouting connector in precast concrete
When full, the grouting material of barrel bore and connector should be filled with into and out of grouting material at slurry hole, it is continuous, grouting material is
Cement-based material has certain conductive capability before moisture content is not fully absorbed by hydrated reaction of cement inside it after hardening,
Air and vacuum have insulation performance, when each sleeve in a kind of insulation measurement instrument measurement precast concrete of use
The metal that grouting connector inner cavity is drawn measures the resistance value between line and the grouting material being connected in the grouting duct of component surface
When, certain resistance value can be obtained, therefore the connector of resistance can be measured, you can be judged as in connector that grouting material is full,
Otherwise it is not full.
The utility model proposes a kind of detection method of grouting material plumpness, erected in preferably a kind of precast concrete
The detection method for the grouting material plumpness of connector of being in the milk to reinforced bar sleeve measures grouting material plumpness using special measurement device,
The special measurement device includes metal detection line (61) and electric resistance measuring apparatus (1), and one end of metal detection line (61) passes through
The detection hole (51) of grout sleeve (4) side wall is simultaneously inserted into grout sleeve (4) inner cavity, and the other end reaches the prefabricated components table
Outside face, electric resistance measuring apparatus (1) measures the grouting pore of the other end and precast concrete surface of the metal detection line
(6) resistance value between grouting material (12) in, when such as measurement result below predetermined resistance, then it is assumed that sleeve grouting connects
The grouting material of head is full, when being more than predetermined resistance such as measurement result, then it is assumed that the grouting material plumpness of sleeve grouting connector is not
It conforms to quality requirements.It is preferred that the method is as follows：
(1) grout sleeve in precast concrete (4) upper portion side wall set there are one perforation sleeve inside and outside detection hole
(51), when precast concrete produces, one end of the metal detection line (61) of special measurement device is passed through into grout sleeve
(4) detection hole set by top (51) is inserted into grout sleeve (4) inner cavity, another to bring out outside prefabricated components surface, then pours
Precast concrete is made in concrete members；The component carries out grouting connection construction in erecting bed, after grouting,
The pulp pore (5) on precast concrete surface is connected to by grout sleeve and grouting pore (6) is blocked with closeouts (16),
In a period of time after grouting material (12) initial set, the closeouts in pulp pore (5) and grouting pore (6) are removed；
(2) the two poles of the earth of electric resistance measuring apparatus are measured line gauge head point by the electric resistance measuring apparatus (1) for using special measurement device
Contacted with the grouting material surface in the other end and grouting pore (6) of the metal detection line of same sleeve grouting connector,
The grouting material table hardened in the measurement line gauge head (3) at the two poles of the earth and the metal of the metal detection line (61) and grouting pore (6)
Under conditions of face contacts simultaneously, start-up resistor measuring device (1) carries out resistance measurement, and measurement result is below predetermined resistance
When, then it is assumed that the grouting material of sleeve grouting connector is full, when being more than predetermined resistance such as measurement result, then judges that the sleeve fills
It is discontinuous to starch grouting material (12) in connector, then it is assumed that the grouting material plumpness of sleeve grouting connector does not meet quality requirement.It is preferred that
Vertical reinforcement sleeve grouting connector is provided in precast concrete (13), vertical reinforcement sleeve grouting connector includes sleeve
(4), connection reinforcing bar (11), grout outlet (9) and grout pipe (10)；It connects reinforcing bar (11) to be partly located in sleeve (4), sleeve (4)
Top is provided with slurry outlet (7), and sleeve (4) lower part is provided with grout hole (8), and grout outlet (9) and grout pipe (10) are respectively provided with
Pulp pore (5) and grouting pore (6), pulp pore (5) are located at precast concrete (13) surface top, and be in the milk pore
(6) it is located at precast concrete (13) surface lower portions, grout outlet (9) is extend into precast concrete (13) and unicom set
The slurry outlet (7) on cylinder (4) top, grout pipe (10) extend into precast concrete (13) and unicom sleeve (4) lower part
Grout hole (8) pours into grouting material (12) into sleeve from grout pipe (10) so that grouting material (12) be distributed in grout pipe (10),
In sleeve (4) and grout outlet (9).
The utility model proposes a kind of detection method of grouting material plumpness, erected in preferably a kind of precast concrete
To the grouting material plumpness detection method of reinforced bar sleeve grouting connector, it is provided only in preferably a kind of precast concrete again
The grouting material plumpness detection method of the vertical reinforcement sleeve grouting connector of slurry outlet, it is described using a kind of special measurement device
Measuring device includes the first metal detection line (61), the second metal detection line (23) and electric resistance measuring apparatus (1), and the first metal is visited
One end of survey line (61) passes through the detection hole (51) of grout sleeve (4) side wall and is inserted into grout sleeve (4) inner cavity, and the other end is stretched
Go out to outside the prefabricated components surface, is connect by the other end of the first metal detection line (61) with sleeve grouting is embedded in by measuring
The resistance value between the second metal detection line (23) in head bottom grouting material (12), if measurement result is below predetermined resistance
When, then it is assumed that the grouting material of sleeve grouting connector is full, when being more than predetermined resistance such as measurement result, then it is assumed that sleeve is in the milk
The grouting material plumpness of connector does not meet quality requirement.It is preferred that the method is as follows：
(1) vertical reinforcement sleeve pre-buried in precast concrete grouting connector, which uses, is provided only with slurry outlet (7)
Grout sleeve (4), the grout sleeve (4) upper portion side wall set there are one perforation sleeve inside and outside detection hole (51), prefabricated
When concrete component produces, one end of the first metal detection line (61) of special measurement device is passed through set by grout sleeve top
Detection hole (51) be inserted into grout sleeve inner cavity, it is another to bring out outside prefabricated components surface, then pour concrete members, be made
Precast concrete；The component carries out grouting connection construction in erecting bed, close with unicom chamber before the connection construction that is in the milk
When precast concrete bottom water flush joint border is sealed by closure material (18), each or part only has slurry outlet (5)
The second metal detection line of pre-plugged (23) below grout sleeve (4), the second metal detection line (23) one end is located at unicom intracavitary
Close to grout sleeve (4) bottom, the other end of the second metal detection line (23) is located at unicom chamber sealing material (18) outside, and grouting connects
After connecing construction, the pulp pore (5) on precast concrete surface is connected to by grout sleeve and is blocked with closeouts (16), in grouting material
In a period of time after initial set, the closeouts (16) in pulp pore (5) are removed；
(2) electric resistance measuring apparatus (1) is used, the two poles of the earth of electric resistance measuring apparatus are measured line gauge head to be filled with same sleeve respectively
Starch the other end of first metal detection line (60) of connector and another termination of any one second metal detection line (23)
It touches, under conditions of the measurement line gauge head at the two poles of the earth and the metal surface of the first and second metal detection lines (60,23) contact simultaneously,
Start-up resistor measuring device carries out resistance measurement (1), when measurement result is below predetermined resistance, then it is assumed that sleeve grouting connects
The grouting material of head is full, when being more than predetermined resistance such as measurement result, then judges that grouting material (12) is no in sleeve grouting connector
Continuously, i.e. the grouting material plumpness of sleeve grouting connector does not meet quality requirement.It is preferred that the only grouting set of slurry outlet (7)
Cylinder uses unicom chamber grouting construction process.It is preferred that the pre-buried sleeve for being provided only with slurry outlet (7) in precast concrete (13)
(4)；Sleeve (4) be located at precast concrete (13) arranged on left and right sides or sleeve (4) along precast concrete
(13) border is distributed border；Concentration grouting duct is provided between the top of precast concrete (13) and sleeve (4)
(22), it or at the unicom chamber of precast concrete (13) lower part is provided with concentration grouting duct (22), the concentration fills
Unicom chamber described in duct (22) unicom is starched, unicom chamber is located at the bottom of sleeve (4), and unicom chamber uses unicom chamber sealing material
(18) it seals.It is preferred that vertical reinforcement sleeve grouting connector is arranged in precast concrete (13) arranged on left and right sides, or it is vertical
Reinforced bar sleeve is in the milk connector along the distribution of precast concrete (13) border.It is preferred that it is prefabricated to concentrate grouting duct (22) to be located at
The top of concrete component (13), and between vertical reinforcement sleeve grouting connector.It is preferred that each vertical reinforcement sleeve fills
Slurry connector includes sleeve (4), connection reinforcing bar (11) and grout outlet (9)；It connects reinforcing bar (11) to be partly located in sleeve (4), sleeve
(4) top is provided with slurry outlet (7), sleeve (4) bottom unicom unicom chamber, and grout outlet (9) has pulp pore (5), grout outlet
Hole (5) is located at precast concrete (13) surface top, and grout outlet (9) extend into precast concrete (13) in parallel
The slurry outlet (7) on logical sleeve (4) top, pours into grouting material (12) out of grouting duct (22), and grouting material (12) is filled along concentration
It starches duct (22) and enters unicom chamber, and entered in sleeve from the opening of sleeve (4) bottom, and grouting material (12) is made to be distributed in
In unicom chamber, sleeve (4) and grout outlet (9).
The utility model proposes a kind of detection device of grouting material plumpness, erected in preferably a kind of precast concrete
The detection device for the grouting material plumpness of connector of being in the milk to reinforced bar sleeve, including special measurement device, it is full for measuring grouting material
Full scale, the special measurement device include metal detection line (61) and electric resistance measuring apparatus (1), one end of metal detection line (61)
Across grout sleeve (4) side wall detection hole (51) and be inserted into grout sleeve (4) inner cavity, the other end reaches the prefabricated components
Outside surface, the measurement line of electric resistance measuring apparatus (1) is separately connected the other end and precast concrete of the metal detection line (61)
Grouting material (12) in the grouting pore (6) of component surface, the other end for measuring the metal detection line are mixed with prefabricated
The resistance value between grouting material (12) in the grouting pore (6) of solidifying soil component surface, as measurement result predetermined resistance with
When lower, then it is assumed that the grouting material of sleeve grouting connector is full, when being more than predetermined resistance such as measurement result, then it is assumed that sleeve fills
The grouting material plumpness of slurry connector does not meet quality requirement.It is preferred that grout sleeve (4) upper portion side wall is set, there are one in perforation sleeve
One end of outer detection hole (51), the metal detection line (61) passes through the detection hole (51) set by grout sleeve (4) top to insert
Enter grout sleeve (4) inner cavity, it is another to bring out outside prefabricated components surface.It is preferred that being provided in precast concrete (13) perpendicular
To reinforced bar sleeve grouting connector, vertical reinforcement sleeve grouting connector includes sleeve (4), connection reinforcing bar (11), grout outlet (9) and fills
Slurry pipe (10)；It connects reinforcing bar (11) to be partly located in sleeve (4), sleeve (4) top is provided with slurry outlet (7), sleeve (4) lower part
It is provided with grout hole (8), grout outlet (9) and grout pipe (10) are respectively provided with pulp pore (5) and grouting pore (6), grout outlet
Hole (5) is located at precast concrete (13) surface top, and grouting pore (6) is located under precast concrete (13) surface
Portion, grout outlet (9) is extend into precast concrete (13) and the slurry outlet (7) on unicom sleeve (4) top, grout pipe (10)
The simultaneously grout hole (8) of unicom sleeve (4) lower part is extend into precast concrete (13), from grout pipe (10) into sleeve
Grouting material (12) is poured into, so that grouting material (12) is distributed in grout pipe (10), sleeve (4) and grout outlet (9).
The utility model proposes a kind of detection device of grouting material plumpness, erected in preferably a kind of precast concrete
To the grouting material plumpness detection device of reinforced bar sleeve grouting connector, pulp is provided only in preferably a kind of precast concrete
The grouting material plumpness detection device of the vertical reinforcement sleeve grouting connector in hole, including special measurement device, for measuring grouting
Expect that plumpness, the measuring device include the first metal detection line (61), the second metal detection line (23) and electric resistance measuring apparatus
(1), one end of the first metal detection line (61) passes through the detection hole (51) of grout sleeve (4) side wall and is inserted into grout sleeve (4)
Inner cavity, the other end reach outside the prefabricated components surface, and the measurement line of electric resistance measuring apparatus (1) is separately connected the spy of the first metal
The other end of survey line (61) and the second metal detection line (23) being embedded in sleeve grouting connector bottom grouting material (12), with
The second gold medal for measuring the other end by the first metal detection line (61) and being embedded in sleeve grouting connector bottom grouting material (12)
Belong to the resistance value between detection line (23), when such as measurement result below predetermined resistance, then it is assumed that sleeve grouting connector
Grouting material is full, when being more than predetermined resistance such as measurement result, then it is assumed that the grouting material plumpness of sleeve grouting connector is not met
Quality requirement.It is preferred that set there are one the detection hole (51) inside and outside perforation sleeve in the grout sleeve (4) upper portion side wall, it is described
One end of first metal detection line (61) passes through the detection hole (51) set by grout sleeve top to be inserted into grout sleeve inner cavity, separately
One brings out outside prefabricated components surface, and each or part only has the second gold medal of pre-plugged below the grout sleeve (4) of slurry outlet (5)
Belong to detection line (23) and do not contacted with connection reinforcing bar (11), the second metal detection line (23) one end is located at unicom intracavitary close to filling
Sleeve (4) bottom is starched, the other end of the second metal detection line (23) is located at unicom chamber sealing material (18) outside.It is preferred that only going out
The grout sleeve for starching hole (7) uses unicom chamber grouting construction process.It is preferred that pre-buried in precast concrete (13) be provided only with
The sleeve (4) of slurry outlet (7)；Sleeve (4) be located at precast concrete (13) arranged on left and right sides or sleeve (4) along
Precast concrete (13) border is distributed border；It is arranged between the top of precast concrete (13) and sleeve (4)
There is concentration grouting duct (22), or is provided with concentration grouting duct at the unicom chamber of precast concrete (13) lower part
(22), unicom chamber described in described concentration grouting duct (22) unicom, unicom chamber are located at the bottom of sleeve (4), and unicom chamber is using connection
Cavity sealing material (18) seals.It is preferred that vertical reinforcement sleeve grouting connector is arranged in precast concrete (13) left and right two
Side or vertical reinforcement sleeve grouting connector are distributed along precast concrete (13) border.It is preferred that concentrating grouting duct
(22) it is located at the top of precast concrete (13), and between vertical reinforcement sleeve grouting connector.It is preferred that each perpendicular
Include sleeve (4), connection reinforcing bar (11) and grout outlet (9) to reinforced bar sleeve grouting connector；It connects reinforcing bar (11) and is partly located at set
In cylinder (4), sleeve (4) top is provided with slurry outlet (7), sleeve (4) bottom unicom unicom chamber, and grout outlet (9) has grout outlet
Hole (5), pulp pore (5) are located at precast concrete (13) surface top, and grout outlet (9) extend into precast concrete
(13) interior and unicom sleeve (4) top slurry outlet (7), grouting material (12), grouting material (12) are poured into out of grouting duct (22)
Duct (22) are in the milk into unicom chamber along concentrating, and are entered in sleeve from the opening of sleeve (4) bottom, and make grouting material
(12) it is distributed in unicom chamber, sleeve (4) and grout outlet (9).
Wherein, the determination method of the predetermined resistance is as follows：
It is poured using grouting material identical with grouting material in the connector and measures line in the first metal with insulating sheath
(60) end is filled into same or equivalent with grout pipe (10) internal diameter using grouting material identical with grouting material in the connector
Plastic round tube (21) in, so that the first metal is measured line (60) end surface and adhere to one layer of grouting material (12), in plastic tube (21)
After forming the continuous grouting material column (28) consistent with bore, in the conductive time range of the grouting material, make
The first metal is measured respectively with the electric resistance measuring apparatus (1) measures grouting material (12) setpoint distance adhered on line (60) surface
2 points between and 2 points of grouting material column (28) both ends furthest apart between resistance value when the maximum value that is obtained,
The sum of two maximum values are predetermined resistance, it is preferable that the time of measuring test coupon grouting material of the predetermined resistance
(12) it is almost the same when the interval in presetting period and practical connector plumpness when construction detect；The predetermined resistance measures
When environment temperature and practical connector plumpness when construction it is almost the same when detecting.
Wherein, the setpoint distance that the first metal measures the grouting material (12) of line (60) surface attachment is the precast concrete
Connection reinforcing bar (11) and the sleeve (4) or reserving hole channel (25) inner wall for entering sleeve (4) or reserving hole channel (25) in component are radial
The perfusion length (L) of the maximum value in gap, continuous grouting material tape (28) is greater than or equal to the precast concrete (13)
The length maximum value of nipple grout pipe (10).Alternatively, the first metal measures setting for grouting material (12) of line (60) surface attachment
Set a distance is the connection reinforcing bar (11) and sleeve (4) for entering sleeve (4) or reserving hole channel (25) in the precast concrete
Or the maximum value of reserving hole channel (25) inner wall radial clearance, the perfusion length (L) of continuous grouting material column (28) are greater than or equal to
The bottom of arbitrary sleeve (4) and the second metal of unicom intracavitary pre-plugged measure line in the precast concrete (13)
(23) between end air line distance maximum value.
The utility model proposes a kind of grout sleeve being applied in method or apparatus described above, the grout sleeve is
The full grout sleeve of monoblock type, split type full grout sleeve, half grout sleeve of monoblock type or split type half grout sleeve, the grouting
The side wall of sleeve is equipped with detection hole (51).
The utility model proposes the inspections for connecting reinforcing bar in a kind of precast concrete in vertical reinforcement sleeve grouting connector
Survey method is measured using special measurement device and determines that the connection reinforcing bar of corresponding position in sleeve whether there is, the special survey
Amount device includes that a pair of of metal detection line (62) and electric resistance measuring apparatus (1), one end of metal detection line (62) are each passed through set
The reinforcing bar exploration hole (52) and insertion sleeve (4) inner cavity, the other end of cylinder (4) side wall reach the prefabricated components surface respectively
Outside, electric resistance measuring apparatus (1) measures the pair of metal detection line (62) and reaches two gold medals of precast concrete (13) outside
Belong to the resistance value between end, when such as measurement result below predetermined resistance, then it is assumed that in a pair of of metal detection in the sleeve
Nearby there is connection reinforcing bar (11) between line (62), when being more than predetermined resistance such as measurement result, then it is assumed that a pair of of metal in sleeve
Nearby without connection reinforcing bar (11) between detection line (62).It is preferred that the method is as follows：
(1) side wall of the grout sleeve in precast concrete (4) is equipped with a pair of be located at perpendicular to the same of sleeve (4)
It on one cross section, and is symmetrically distributed in sleeve axis both sides, penetrates through the reinforcing bar exploration hole (52) inside and outside sleeve, in precast concrete
When component produces, one end of two metal detection lines (62) of special measurement device is each passed through on grout sleeve (4) set
Reinforcing bar exploration hole (52) be inserted into grout sleeve (4) inner cavity, the other end is drawn out to respectively outside prefabricated components surface, then pours structure
Precast concrete (13) is made in part concrete；The component carries out grouting connection construction in erecting bed；
(2) after grouting construction, using the electric resistance measuring apparatus (1) of special measurement device, by electric resistance measuring apparatus
The two poles of the earth measure the other end metal with a pair of of metal detection line (52) of the line gauge head (3) respectively with same sleeve grouting connector
End is in contact, and under conditions of the two poles of the earth measurement line gauge head (3) contacts simultaneously with the metal termination of the metal detection line (62), opens
Dynamic electric resistance measuring apparatus (1) carries out resistance measurement, when measurement result is below predetermined resistance, then it is assumed that the sleeve this to gold
Belong to detection line (52) and nearby there is connection reinforcing bar (11), it is preferable that when as suitable or close with predetermined resistance such as measurement result, then sentences
There are grouting material (12) but connection reinforcing bar (11) nearby is not present to metal detection line (52) at this in the disconnected sleeve, such as measurement result
When more than predetermined resistance, then it is assumed that nearby without connection reinforcing bar (11) between a pair of of metal detection line (62) in sleeve, it is preferable that
When being much larger than predetermined resistance value such as measurement result, then judge that grouting is nearby not present to metal detection line (52) at this in the sleeve
Expect (12), without can be determined whether there is connection reinforcing bar (11).
The utility model also proposes in a kind of precast concrete connection reinforcing bar in vertical reinforcement sleeve grouting connector
Detection device is measured using special measurement device and determines that the connection reinforcing bar of corresponding position in sleeve whether there is, described special
Measuring device includes a pair of of metal detection line (62) and electric resistance measuring apparatus (1), one end difference of the metal detection line (62)
Reinforcing bar exploration hole (52) and insertion sleeve (4) inner cavity, the other end across sleeve (4) side wall reach the prefabricated structure respectively
Outside part surface, the measurement line of electric resistance measuring apparatus (1) is separately connected the other end of metal detection line (62), one end resistance measurement dress
It sets (1) and measures the pair of metal detection line (62) and reach electricity between two metal terminations of precast concrete (13) outside
Resistance value, when such as measurement result below predetermined resistance, then it is assumed that in the sleeve between a pair of of metal detection line (62) near
There is connection reinforcing bar (11), when being more than predetermined resistance such as measurement result, then it is assumed that in sleeve between a pair of of metal detection line (62)
Nearby without connection reinforcing bar (11).It is preferred that when as suitable or close with predetermined resistance such as measurement result, then judge the sleeve at this
There are grouting material (12) but connection reinforcing bar (11) nearby is not present to metal detection line (52)；It is preferred that as measurement result is much larger than
When predetermined resistance value, then judge that grouting material (12) is nearby not present to metal detection line (52) at this in the sleeve, and can not sentence
It is fixed to whether there is connection reinforcing bar (11).Wherein, the determination method of the predetermined resistance is as follows：
Using sleeve identical with the maximum sleeve of internal diameter in the precast concrete inner sleeve (4), or use with
The same or equivalent other tubular materials of the internal diameter of the maximum sleeve of internal diameter in the precast concrete inner sleeve (4)
(70), other tubular materials (70) are preferably plastic tube (70), and a pair of of through-hole, institute are set in the sleeve or tubular material (70) side wall
It states hole and is preferably placed on the same cross section of sleeve or tubular material (70) and is symmetrically distributed in its axis both sides, a pair of of metal is visited
One end insertion sleeve of survey line (62) or tubular material (70) inner cavity, a pair of of metal in sleeve or tubular material (70) inner cavity
The two ends spacing of detection line (62) is preferably the maximum gauge for sleeve (4) connection in the precast concrete (13)
The largest outer diameter size of reinforcing bar is filled into the sleeve or tubular material using grouting material identical with grouting material in the connector
(70) after in and the end of the metal detection line (62) being buried, in the conductive time range of the grouting material,
Using the electric resistance measuring apparatus (1) measure respectively this to metal measure line (62) the sleeve or tubular material (70) outside two
The maximum value obtained when resistance value between endpoint, as predetermined resistance.It is preferred that the predetermined resistance is one or more
It is a, it is preferable that the reality when interval in time of measuring test coupon grouting material (12) presetting period of the predetermined resistance and construction
It is almost the same when the connector plumpness detection of border；Practical connector when environment temperature when the predetermined resistance measures and construction is full
Full scale is almost the same when detecting.
A pair or more can be arranged in detected sleeve (4) side wall in the wherein described metal detection line (62)；The metal
It is identical detection line to detect a detection line in line (62) and the first metal detection line (61) in the above method or device；
A reinforcing bar exploration hole (52) in the reinforcing bar exploration hole (52) is identical with the detection hole (51) of the above method or device
Detection hole.
The utility model proposes a kind of grout sleeve being applied in method or apparatus described above, the grout sleeve is
The full grout sleeve of monoblock type, split type full grout sleeve, half grout sleeve of monoblock type or split type half grout sleeve, the grouting
The side wall of sleeve is equipped with reinforcing bar exploration hole (52).
Wherein, described a period of time is in the conductive time range of grouting material used in the connector, preferably
For in 36-120 hours after grouting material initial set, again preferably after grouting material initial set in 72-120 hours.It is preferred that at the beginning of grouting material
After solidifying in 36-168 hours, again preferably after grouting material initial set in 72-120 hours.It is preferred that the electric resistance measuring apparatus is excellent
It is selected as resistance measurement instrument, again preferably megameter or multimeter.It is preferred that the sleeve is by structural steel, stainless steel, casting
Iron, cast steel, FRP or CFRP materials are made；The grouting material be not complete aquation when it is conductive, and do not have after aquation completely
Conductive grouting material.It is preferred that the slurry outlet (7) connect with grout outlet (9) connector (19), grout outlet (9) is by exhausted
Edge nonmetallic materials of good performance are made.It is preferred that the predetermined resistance is 100-3000M Ω, preferably 100-1500M
Ω, again preferably 500M Ω, 800M Ω, 1000M Ω, 1500M Ω, 2000M Ω, 2500M Ω or 2800M Ω.It is preferred that institute
It is the electric wire with insulating sheath to state the metal detection line (60) that special measurement device is inserted into the slurry outlet on connector top.It is excellent
Choosing then judges that the metal detection line end point of the insertion detection hole (51) does not have when being more than predetermined resistance such as measurement result
There is grouting material or not full, further judges that grouting material (12) is discontinuously in the connector, i.e., the grouting material plumpness of the described connector
Quality requirement is not met.It is preferred that the installation position of the detection hole (51) is：Least anchorage length value pair as defined in the connector
The smallest height for the grouting material upper surface being perfused in the sleeve (4) answered.
Not having to any position of precast concrete is judged to sleeve grouting material plumpness quality by this method
It destroys, method is simple, highly practical, fast and reliable, can solve prefabricated concrete structure prefabricated post, the vertical steel in dry wall
The non-destructive testing of muscle sleeve grouting jointing grouting material plumpness judges problem.
Description of the drawings
Fig. 1 is to be connected in the grouting material plumpness of vertical reinforcement sleeve grouting connector and connector in precast concrete
Reinforcing bar measuring device connection diagram；
Fig. 2 is vertical reinforcement sleeve grouting connector schematic diagram in the precast concrete with closeouts；
Fig. 3 is that the grouting material of vertical reinforcement sleeve grouting connector in the precast concrete with air or vacuum chamber is full
Reinforcing bar measuring device connection diagram is connected in full scale and connector；
Fig. 4 a-4c are the measuring device connection diagram for measuring predetermined resistance；
Fig. 5 a are that the grouting material for the vertical reinforcement sleeve grouting connector that slurry outlet is provided only in precast concrete is full
Reinforcing bar detection device connection diagram is connected in degree and connector；
Fig. 5 b are the grouting for the vertical reinforcement sleeve grouting connector that slurry outlet is provided only in another precast concrete
Expect to connect reinforcing bar detection device connection diagram in plumpness and connector；
It is the full grout sleeve of monoblock type, Fig. 6 (b) that Fig. 6, which has the grout sleeve schematic diagram of detection hole and exploration hole, Fig. 6 (a),
For split type full grout sleeve, Fig. 6 (c) is split type half grout sleeve；Fig. 6 (d) is half grout sleeve of monoblock type.
Specific implementation mode
Such as Fig. 1-Fig. 6, wherein
1- electric resistance measuring apparatus, 2- electric resistance measuring apparatus measure line, and 3- measures line gauge head, the grout pipe of 6- component surfaces
Hole, 8- sleeve grout holes, 9- grout outlets, 10- grout pipes, 11- connection reinforcing bars, 12- grouting materials, 13- precast concretes,
14- sits slurry, 15- lower structures, 16- closeouts, 17- air or vacuum chamber, 18- unicom grouting chamber sealing material, 19- sets
Cylinder pulp connector, 20- sleeves grouting connector, 21- plastic round tube, 22- concentrate grouting duct, 23- connector bottom metals to detect line,
24- constrains reinforcing bar, 25- reserving hole channels, 26- overlap joint connection reinforcing bars, 28- grouting material tapes, 51- sleeve detection holes, 52- reinforcing bars
Exploration hole, 61- metal detection lines, 62- reinforcing bar detection lines, 70 other tubular materials
Embodiment 1
As shown in Figs. 1-3, the utility model proposes a kind of detection devices of grouting material plumpness, preferably a kind of prefabricated mixed
The detection device of the grouting material plumpness of vertical reinforcement sleeve grouting connector in Xtah Crude Clay structure, including special measurement device, are used for
Grouting material plumpness is measured, the special measurement device includes metal detection line 61 and electric resistance measuring apparatus 1, metal detection line 61
One end pass through 4 side wall of grout sleeve detection hole 51 and be inserted into 4 inner cavity of grout sleeve, the other end reaches the prefabricated components
Outside surface, the measurement line of electric resistance measuring apparatus 1 is separately connected the other end and precast concrete of the metal detection line 61
Grouting material 12 in the grouting pore 6 on surface, for measuring the other end and precast concrete of the metal detection line
The resistance value between grouting material 12 in the grouting pore 6 on surface, when such as measurement result below predetermined resistance, then it is assumed that should
The grouting material of sleeve grouting connector is full, when being more than predetermined resistance such as measurement result, then it is assumed that the grouting of sleeve grouting connector
Material plumpness does not meet quality requirement.It is preferred that 4 upper portion side wall of grout sleeve is set there are one the detection hole 51 inside and outside perforation sleeve,
One end of the metal detection line 61 passes through the detection hole 51 set by 4 top of grout sleeve to be inserted into 4 inner cavity of grout sleeve, the other end
Go out to outside prefabricated components surface.It is preferred that being provided with vertical reinforcement sleeve grouting connector, vertical reinforcement in precast concrete 13
Sleeve grouting connector includes sleeve 4, connection reinforcing bar 11, grout outlet 9 and grout pipe 10；11 part of connection reinforcing bar is located in sleeve 4,
4 top of sleeve is provided with slurry outlet 7, and 4 lower part of sleeve is provided with grout hole 8, and grout outlet 9 and grout pipe 10 are respectively provided with grout outlet
Hole 5 and grouting pore 6, pulp pore 5 are located at 13 surface top of precast concrete, and grouting pore 6 is located at precast concrete
13 surface lower portions of component, grout outlet 9 is extend into precast concrete 13 and the slurry outlet 7 on 4 top of unicom sleeve, grouting
Pipe 10 is extend into precast concrete 13 and the grout hole 8 of 4 lower part of unicom sleeve, and filling is poured into sleeve from grout pipe 10
Slurry 12, so that grouting material 12 is distributed in grout pipe 10, sleeve 4 and grout outlet 9.
The detection method of the utility model is specific as follows：
A kind of detection method of the grouting material plumpness of vertical reinforcement sleeve grouting connector in precast concrete, specifically
Steps are as follows：
1. as shown in FIG. 1 to 3, using a kind of special measurement device, the measuring device includes 61 He of metal detection line
Electric resistance measuring apparatus 1, metal detection line 61 is by when precast concrete produces, in advance from the detection hole of grout sleeve side wall
51 are inserted into grout sleeve inner cavity, and the detection line other end guides to precast concrete outer surface, then carries out concrete members and pour
It builds；After the sleeve grouting connection of precast concrete 13, grouting material still has in 72 hours after grouting material initial set
When electric conductivity, the closeouts 16 that grout sleeve 4 is connected to the grouting pore 6 of 13 outer surface of precast concrete are removed；It is preferred that
For in 36-168 hours after grouting material initial set, again preferably after grouting material initial set in 72-120 hours.
2. using the electric resistance measuring apparatus 1 of special measurement device, the two poles of the earth of electric resistance measuring apparatus 1 are measured to the gauge head 3 of line 2
The other end of the metal detection line 61 on precast concrete surface is connected to same sleeve grouting tool joint monitor hole 51 respectively
Head and grouting pore in 12 surface of grouting material contact, the two poles of the earth measurements line 2 gauge head 3 with pick out precast concrete
Under conditions of 12 surface of grouting material hardened in the metal and grouting pore of metal detection line 61 on surface contacts simultaneously, start
Electric resistance measuring apparatus 1 carries out resistance measurement, when measurement result is below predetermined resistance, then it is assumed that the filling of sleeve grouting connector
Slurry is full, as measurement result be more than predetermined resistance when, then judge the sleeve grouting connector in metal detection line 61 it is another
No grouting material (Fig. 3 illustrates the situation, occurs air or vacuum chamber at the other end of metal detection line 61) at end,
That is the grouting material plumpness of sleeve grouting connector does not meet quality requirement.
The electric resistance measuring apparatus 1 is resistance measurement instrument.
The metal detection line 61 that the special measurement device is inserted into the slurry outlet on connector top is with insulating sheath
Electric wire.
Embodiment 2
As shown in figure 5a and 5b, a kind of detection device of grouting material plumpness, in preferably a kind of precast concrete
Vertical reinforcement sleeve is in the milk the grouting material plumpness detection device of connector, is provided only with out in preferably a kind of precast concrete
The grouting material plumpness detection device of the vertical reinforcement sleeve grouting connector in hole, including special measurement device are starched, is filled for measuring
Slurry plumpness, the measuring device include the first metal detection line 61, the second metal detection line 23 and electric resistance measuring apparatus 1,
One end of first metal detection line 61 passes through the detection hole 51 of 4 side wall of grout sleeve and is inserted into 4 inner cavity of grout sleeve, and the other end is stretched
Go out to outside the prefabricated components surface, the measurement line of electric resistance measuring apparatus 1 is separately connected the other end of the first metal detection line 61
With the second metal detection line 23 being embedded in sleeve grouting connector bottom grouting material 12, to measure by the first metal detection line 61
The other end and the second metal detection line 23 being embedded in sleeve grouting connector bottom grouting material 12 between resistance value, such as survey
When measuring result below predetermined resistance, then it is assumed that the grouting material of sleeve grouting connector is full, makes a reservation for as measurement result is more than
When resistance value, then it is assumed that the grouting material plumpness of sleeve grouting connector does not meet quality requirement.It is preferred that in the grout sleeve 4
Upper portion side wall is set there are one the detection hole 51 inside and outside perforation sleeve, and one end of first metal detection line 61 passes through grout sleeve
Detection hole 51 set by top is inserted into grout sleeve inner cavity, another to bring out outside prefabricated components surface, and each or part only goes out
It starches 4 second metal detection line of lower section pre-plugged 23 of grout sleeve in hole 5 and is not contacted with connection reinforcing bar 11, the second metal detection
23 one end of line is located at unicom intracavitary close to 4 bottom of grout sleeve, and the other end of the second metal detection line 23 is located at the sealing of unicom chamber
Outside material 18.It is preferred that only the grout sleeve of slurry outlet 7 uses unicom chamber grouting construction process.It is preferred that precast concrete
The pre-buried sleeve 4 for being provided only with slurry outlet 7 in 13；Sleeve 4 is located at 4 edge of arranged on left and right sides or sleeve of precast concrete 13
13 border of precast concrete distribution (shown in Fig. 5 a)；It is set between the top of precast concrete 13 and sleeve 4
It is equipped with concentration grouting duct 22 (shown in Fig. 5 a), or is provided with concentration at the unicom chamber of 13 lower part of precast concrete and fills
It starches duct 22 (shown in Fig. 5 b), unicom chamber described in concentration grouting 22 unicom of duct, unicom chamber is located at the bottom of sleeve 4, joins
Cavity is sealed using unicom chamber sealing material 18.It is preferred that vertical reinforcement sleeve grouting connector is arranged in precast concrete 13
Arranged on left and right sides or vertical reinforcement sleeve grouting connector are distributed along 13 border of precast concrete.It is preferred that concentrating grouting
Duct 22 is located at the top of precast concrete 13, and between vertical reinforcement sleeve grouting connector (shown in Fig. 5 a).
It is preferred that each vertical reinforcement sleeve grouting connector includes sleeve 4, connection reinforcing bar 11 and grout outlet 9；Connect 11 part of reinforcing bar position
In in sleeve 4,4 top of sleeve is provided with slurry outlet 7,4 bottom unicom unicom chamber of sleeve, and grout outlet 9 has pulp pore 5, goes out
Slurry pore 5 is located at 13 surface top of precast concrete, and grout outlet 9 is extend into precast concrete 13 and unicom set
The slurry outlet 7 on 4 tops of cylinder, pours into grouting material 12 out of grouting duct 22, and grouting material 12 enters connection along concentration grouting duct 22
Cavity, and entered in sleeve from the opening of 4 bottom of sleeve, and grouting material 12 is made to be distributed in unicom chamber, sleeve 4 and grout outlet 9
It is interior.
A kind of grouting material plumpness of the vertical reinforcement sleeve grouting connector of slurry outlet is provided only in precast concrete
Detection method, as shown in Fig. 5 a-5b, this method uses a kind of special measurement device, and the measuring device includes metal detection line
61 and electric resistance measuring apparatus 1；Pre-buried vertical reinforcement sleeve grouting connector, which uses, in precast concrete 13 is provided only with out
The grout sleeve 4 in hole is starched, the only grout sleeve 4 of slurry outlet uses unicom chamber grouting construction process；The gold of special detection device
Belong to detection line 61 when precast concrete produces, is inserted into grout sleeve from the detection hole 51 of grout sleeve side wall in advance
Chamber, the detection line other end guide to precast concrete outer surface, then carry out concrete members and pour；In grouting connection construction
Before, the horizontal joint that is formed the upper surface of 13 bottom of precast concrete and lower structures 15 with unicom chamber sealing material 18
Border is sealed, and one piece-root grafting head bottom metal of pre-plugged is visited below each only grout sleeve 4 of slurry outlet when sealing
One end of survey line 23, connector bottom metal detection line 23 is located at unicom intracavitary close to 4 bottom of grout sleeve, and connector bottom metal is visited
The other end of survey line 23 is located at outside unicom chamber sealing material 18, then carries out grouting connection construction, sleeve be in the milk connection construction when,
The pulp pore 5 that 4 top slurry outlet 7 of grout sleeve is connected to 13 outer surface of precast concrete is blocked with closeouts 16,
When still conductive in 36 hours after 12 initial set of grouting material, the closeouts 16 of pulp pore 5 are removed；Preferably at the beginning of grouting material
After solidifying in 36-168 hours, again preferably after grouting material initial set in 72-120 hours.
Using electric resistance measuring apparatus 1, the two poles of the earth of electric resistance measuring apparatus 1 are measured into line gauge head and are connect respectively with the grouting of same sleeve
The sleeve detection hole 51 of head is drawn out to another end of the metal detection line 61 on precast concrete surface and by the filling
Slurry sleeve bottom be connected to the connector bottom metal outside sealing material detection line 23 contact, the two poles of the earth measurement line 2 gauge head 3 with
Under conditions of the metal surface of two metal detection lines contacts simultaneously, start-up resistor measuring device carries out resistance measurement, measurement result
When below predetermined resistance, then it is assumed that the grouting material of sleeve grouting connector is full, as measurement result is more than predetermined resistance
When, then judge that the end perimeter of metal detection line 61 in sleeve grouting connector slurry outlet does not have grouting material, the i.e. sleeve to be in the milk
The grouting material plumpness of connector does not meet quality requirement.
The electric resistance measuring apparatus 1 is megameter.
For the predetermined resistance in Examples 1 and 2, such as Fig. 4 a, shown in 4b, the determination method of the predetermined resistance is such as
Under：The end that line 60 is measured in the first metal with insulating sheath is poured using grouting material identical with grouting material in the connector
Portion is filled into the plastic round tube same or equivalent with 10 internal diameter of grout pipe using grouting material identical with grouting material in the connector
In 21, so that the first metal is measured 60 end surface of line and adhere to one layer of grouting material 12, formed in plastic tube 21 consistent with bore
After continuous grouting material column 28, in the conductive time range of the grouting material, divided using the electric resistance measuring apparatus 1
Do not measure the first metal measure 2 points of 12 setpoint distance of grouting material adhered on line 60 surface between and grouting material column 28
The maximum value obtained when resistance value between 2 points of both ends furthest apart, the sum of two maximum values are predetermined resistance
Value, it is preferable that the reality when interval in 12 presetting period of time of measuring test coupon grouting material of the predetermined resistance and construction
Connector plumpness is almost the same when detecting；Practical connector when environment temperature when the predetermined resistance measures and construction is full
It is almost the same when degree detection.The setpoint distance that first metal measures the grouting material 12 of 60 surface of line attachment is the precast concrete
Enter the maximum of the connection reinforcing bar 11 and 25 inner wall radial clearance of sleeve 4 or reserving hole channel of sleeve 4 or reserving hole channel 25 in component
The perfusion length L of value, continuous grouting material tape 28 is greater than or equal to 13 nipple grout pipe 10 of the precast concrete
Length maximum value.Alternatively, the setpoint distance that the first metal measures the grouting material 12 of 60 surface of line attachment is the precast concrete
Enter the maximum of the connection reinforcing bar 11 and 25 inner wall radial clearance of sleeve 4 or reserving hole channel of sleeve 4 or reserving hole channel 25 in component
Value, the perfusion length L of continuous grouting material column 28 are greater than or equal to the bottom of arbitrary sleeve 4 in the precast concrete 13
The maximum value of air line distance between 23 end of line is measured with the second metal of unicom intracavitary pre-plugged.
Embodiment 3
As in Fig. 1-6, the utility model proposes connect in vertical reinforcement sleeve grouting connector in a kind of precast concrete
The detection method for connecing reinforcing bar is measured using special measurement device and determines that the connection reinforcing bar of corresponding position in sleeve whether there is,
The special measurement device includes that a pair of of metal detection line 62 and electric resistance measuring apparatus 1, one end of metal detection line 62 are worn respectively
The reinforcing bar exploration hole 52 of 4 side wall of sleeve and 4 inner cavity of insertion sleeve are crossed, the other end is reached respectively outside the prefabricated components surface,
Electric resistance measuring apparatus 1 measures between two metal terminations that the pair of metal detection line 62 reaches outside precast concrete 13
Resistance value, when such as measurement result below predetermined resistance, then it is assumed that attached between a pair of of metal detection line 62 in the sleeve
It is close to have connection reinforcing bar 11, when being more than predetermined resistance such as measurement result, then it is assumed that attached between a pair of of metal detection line 62 in sleeve
Nearly no connection reinforcing bar 11.It is preferred that the method is as follows：
(1) side wall of the grout sleeve 4 in precast concrete is equipped with a pair of same cross being located at perpendicular to sleeve 4
It on section, and is symmetrically distributed in sleeve axis both sides, penetrates through the reinforcing bar exploration hole 52 inside and outside sleeve, given birth in precast concrete
When production, one end of two metal detection lines 62 of special measurement device is each passed through reinforcing bar set on grout sleeve 4 and is detected
4 inner cavity of grout sleeve is inserted into hole 52, and the other end is drawn out to outside prefabricated components surface, then pours concrete members, be made respectively
Precast concrete 13；The component carries out grouting connection construction in erecting bed；
(2) after grouting construction, using the electric resistance measuring apparatus 1 of special measurement device, by the two of electric resistance measuring apparatus
Pole measures the other end metal termination phase with a pair of of metal detection line 52 of the line gauge head 3 respectively with same sleeve grouting connector
Contact, under conditions of the two poles of the earth measurement line gauge head 3 contacts simultaneously with the metal termination of the metal detection line 62, start-up resistor measures
Device 1 carry out resistance measurement, when measurement result is below predetermined resistance, then it is assumed that the sleeve this to metal detection line 52
Nearby there is connection reinforcing bar 11, it is preferable that when as suitable or close with predetermined resistance such as measurement result, then judge that the sleeve is right at this
Metal detection line 52 is nearby there are grouting material 12 but there is no reinforcing bar 11 is connected, when being more than predetermined resistance such as measurement result, then
Think no nearby between a pair of of metal detection line 62 in sleeve and connect reinforcing bar 11, it is preferable that if measurement result is much larger than predetermined electricity
When resistance value, then judge the sleeve this near metal detection line 52 be not present grouting material 12, without can be determined whether exist connect
Connect reinforcing bar 11.Much larger than the case where be such as：Predetermined resistance is 500M Ω, and measured value is 15000M Ω, art technology
The judgement that personnel can be much larger than according to actual conditions.
The utility model proposes the inspections for connecting reinforcing bar in a kind of precast concrete in vertical reinforcement sleeve grouting connector
Device is surveyed, is measured using special measurement device and determines that the connection reinforcing bar of corresponding position in sleeve whether there is, the special survey
It includes a pair of of metal detection line 62 and electric resistance measuring apparatus 1 to measure device, and one end of the metal detection line 62 is each passed through 4 sides of set
The reinforcing bar exploration hole 52 and 4 inner cavity of insertion sleeve, the other end of wall are reached respectively outside the prefabricated components surface, resistance measurement dress
The measurement line for setting 1 is separately connected the other end of metal detection line 62, and one end electric resistance measuring apparatus 1 measures the pair of metal detection
Line 62 reaches the resistance value between two metal terminations outside precast concrete 13, as measurement result predetermined resistance with
When lower, then it is assumed that nearby have connection reinforcing bar 11 in the sleeve between a pair of of metal detection line 62, make a reservation for as measurement result is more than
When resistance value, then it is assumed that nearby without connection reinforcing bar 11 between a pair of of metal detection line 62 in sleeve.
Wherein, as shown in Figure 4 C, the detection of reinforcing bar is connected in precast concrete in vertical reinforcement sleeve grouting connector
The determination method of the predetermined resistance in method and apparatus is as follows：
Using sleeve identical with the maximum sleeve of internal diameter in multiple sleeves 4 in the precast concrete, or use
Same or equivalent other tubular materials with the internal diameter of the maximum sleeve of internal diameter in multiple sleeves 4 in the precast concrete
70, other tubular materials 70 are preferably plastic tube 70, set a pair of of through-hole in the sleeve or 70 side wall of tubular material, the hole is preferred
On the same cross section of sleeve or tubular material 70 and it is symmetrically distributed in its axis both sides, the one of a pair of of metal detection line 62
Insertion sleeve or 70 inner cavity of tubular material are held, between the two ends of a pair of of metal detection line 62 of 70 inner cavity of sleeve or tubular material
It is preferably the largest outer diameter size of the maximum gauge reinforcing bar connected for sleeve 4 in the precast concrete 13 away from d, makes
It is filled into the sleeve or tubular material 70 with grouting material identical with grouting material in the connector and by the metal detection line
After 62 end is embedded, in the conductive time range of the grouting material, surveyed respectively using the electric resistance measuring apparatus 1
The maximum value obtained when this measures the resistance value between two-end-point of the line 62 outside the sleeve or tubular material 70 to metal is measured,
As predetermined resistance.It is preferred that the predetermined resistance is one or more, it is preferable that the time of measuring of the predetermined resistance
Practical connector plumpness when the interval in 12 presetting period of test coupon grouting material and construction is almost the same when detecting；It is described predetermined
Practical connector plumpness when environment temperature when resistance measurement and construction is almost the same when detecting.
When having reinforcing bar between the grouting intracavitary reinforcing bar detection line 62 of sleeve 4, reinforcing bar detects two ends and the reinforcing bar of line 62
Between the sum of grouting material thickness opposite end head between there is no that grouting material thickness when reinforcing bar is much smaller, therefore it is right to measure this
When reinforcing bar detects the resistance between line 62, measured resistance value will be detected significantly lower than reinforcing bar when not having a reinforcing bar between line 62
Thus resistance value judges in sleeve 4 between reinforcing bar detection line 62 and nearby has no-reinforcing-bar.
As shown in figures 1 to 6, wherein a pair or more can be arranged in detected 4 side wall of sleeve in the metal detection line 62；
A detection line in the metal detection line 62 and the first metal detection line 61 in the above method or device are identical spy
Survey line；A reinforcing bar exploration hole 52 and the detection hole 51 of the above method or device in the reinforcing bar exploration hole 52 are identical inspection
Gaging hole.
As shown in fig. 6, the utility model proposes a kind of grout sleeve being applied in method or apparatus described above, it is described
Grout sleeve is the full grout sleeve of monoblock type, split type full grout sleeve, half grout sleeve of monoblock type or split type half grouting set
The side wall of cylinder, the grout sleeve is equipped with reinforcing bar exploration hole 52.Or the side wall of the grout sleeve is equipped with detection hole 51.
The parameter of the utility model is as follows：Described a period of time is that grouting material used in the connector is conductive
In time range, preferably after grouting material initial set in 36-120 hours, again preferably after grouting material initial set in 72-120 hours.
It is preferred that for after grouting material initial set in 36-168 hours, again preferably after grouting material initial set in 72-120 hours.It is preferred that described
Electric resistance measuring apparatus is preferably resistance measurement instrument, again preferably megameter or multimeter.It is preferred that the sleeve is by structure
Steel, stainless steel, cast iron, cast steel, FRP or CFRP materials are made；The grouting material be not complete aquation when it is conductive, and it is complete
Do not have the grouting material of electric conductivity after fully hydrated.It is preferred that connector 19, the grout outlet 9 that the slurry outlet 7 is connect with grout outlet 9 are equal
It is made of the good nonmetallic materials of insulation performance.It is preferred that the predetermined resistance is 100-3000M Ω, preferably 100-
1500M Ω, again preferably 500M Ω, 800M Ω, 1000M Ω, 1500M Ω, 2000M Ω, 2500M Ω or 2800M Ω.
It is preferred that the metal detection line 60 that the special measurement device is inserted into the slurry outlet on connector top is the electricity with insulating sheath
Line.It is preferred that when being more than predetermined resistance such as measurement result, then the metal detection line end point of the insertion detection hole 51 is judged
There is no grouting material or not full, further judges that grouting material 12 is discontinuous in the connector, i.e., the grouting material plumpness of the described connector
Quality requirement is not met.It is preferred that the installation position of the detection hole 5 is：Least anchorage length value as defined in the connector corresponds to
Sleeve 4 in be perfused grouting material upper surface smallest height.
Since conductivity of the different manufacturers grouting material product in hydration process is variant, scene temperature and environment are to filling
The hydration reaction speed of slurry also has an impact, therefore predicted value needs use site grouting material to make detection sample at the scene, comes true
Insulation resistance preset value when regular inspection is surveyed, finally to judge quality.
The utility model is related to a kind of grout sleeve, the side wall of the grout sleeve is equipped with the detection inside and outside perforation sleeve
Hole.The metal detection line is the electric wire of appearance having insulation sheath.
As shown in Fig. 6 (a), the grout sleeve involved in the detection method is the full grout sleeve of monoblock type.
As shown in Fig. 6 (b), the grout sleeve involved in the detection method is split type full grout sleeve.
As shown in Fig. 6 (c), the grout sleeve involved in the detection method is split type half grout sleeve.
As shown in Fig. 6 (d), the grout sleeve involved in the detection method is half grout sleeve of monoblock type.
Claims (30)
1. a kind of detection device of grouting material plumpness, including special measurement device, described special for measuring grouting material plumpness
Include metal detection line (61) and resistance measurement instrument (1) with measuring device, one end of metal detection line (61) passes through grouting to cover
The detection hole (51) of cylinder (4) side wall is simultaneously inserted into grout sleeve (4) inner cavity, and the other end reaches outside precast concrete surface,
Sleeve (4) top is provided with slurry outlet (7), and the measurement line of resistance measurement instrument (1) is separately connected the metal detection line (61)
The other end and precast concrete surface grouting pore (6) in grouting material (12), visited for measuring the metal
The resistance value between grouting material (12) in the other end of survey line and the grouting pore (6) on precast concrete surface is such as surveyed
When measuring result below predetermined resistance, then it is assumed that the grouting material of sleeve grouting connector is full, as measurement result is more than predetermined electricity
When resistance value, then it is assumed that the grouting material plumpness of sleeve grouting connector does not meet quality requirement.
2. the apparatus according to claim 1, which is characterized in that grout sleeve (4) upper portion side wall set there are one penetrate through sleeve
Inside and outside detection hole (51), one end of the metal detection line (61) pass through the detection hole (51) set by grout sleeve (4) top
It is inserted into grout sleeve (4) inner cavity, the other end reaches outside precast concrete surface.
3. device according to claim 1 or 2, which is characterized in that be provided with vertical steel in precast concrete (13)
Muscle sleeve grouting connector, vertical reinforcement sleeve grouting connector include sleeve (4), connection reinforcing bar (11), grout outlet (9) and grout pipe
(10)；It connects reinforcing bar (11) to be partly located in sleeve (4), sleeve (4) lower part is provided with grout hole (8), grout outlet (9) and grouting
Pipe (10) is respectively provided with pulp pore (5) and grouting pore (6), and pulp pore (5) is located at precast concrete (13) surface
Top, grouting pore (6) are located at precast concrete (13) surface lower portions, and grout outlet (9) extend into precast concrete
(13) in and the slurry outlet (7) on unicom sleeve (4) top, grout pipe (10) extend into precast concrete (13) simultaneously unicom
The grout hole (8) of sleeve (4) lower part pours into grouting material (12) into sleeve from grout pipe (10), so that grouting material (12) is distributed
In in grout pipe (10), sleeve (4) and grout outlet (9).
4. device according to claim 1 or 2, which is characterized in that described device is to be erected in a kind of precast concrete
The detection device for the grouting material plumpness of connector of being in the milk to reinforced bar sleeve.
5. a kind of detection device of grouting material plumpness, including special measurement device, for measuring grouting material plumpness, the survey
It includes the first metal detection line (61), the second metal detection line (23) and resistance measurement instrument (1), the first metal detection to measure device
One end of line (61) passes through the detection hole (51) of grout sleeve (4) side wall and is inserted into grout sleeve (4) inner cavity, and the other end reaches
Outside precast concrete surface, sleeve (4) top is provided with slurry outlet (7), and the measurement line of resistance measurement instrument (1) connects respectively
The second metal detection for connecing the other end of the first metal detection line (61) and being embedded in sleeve grouting connector bottom grouting material (12)
Line (23), to measure the other end by the first metal detection line (61) and be embedded in sleeve grouting connector bottom grouting material (12)
Resistance value between second metal detection line (23), when such as measurement result below predetermined resistance, then it is assumed that sleeve grouting connects
The grouting material of head is full, when being more than predetermined resistance such as measurement result, then it is assumed that the grouting material plumpness of sleeve grouting connector is not
It conforms to quality requirements.
6. device according to claim 5, which is characterized in that passed through there are one being set in the grout sleeve (4) upper portion side wall
Detection hole (51) inside and outside logical sleeve, one end of first metal detection line (61) pass through the detection set by grout sleeve top
Grout sleeve inner cavity is inserted into hole (51), and the other end reaches outside precast concrete surface, and each or part only has slurry outlet
(7) it the second metal detection line of pre-plugged (23) and is not contacted with connection reinforcing bar (11), the second metal below grout sleeve (4)
Detection line (23) one end is located at unicom intracavitary close to grout sleeve (4) bottom, and the other end of the second metal detection line (23) is located at
Unicom chamber sealing material (18) is outside.
7. device according to claim 6, which is characterized in that pre-buried in precast concrete (13) to be provided only with slurry outlet
(7) sleeve (4)；Sleeve (4) be located at precast concrete (13) arranged on left and right sides or sleeve (4) along concrete
Native component (13) border distribution；It is provided with concentration grout hole between the top of precast concrete (13) and sleeve (4)
Road (22), or concentration grouting duct (22), the concentration are provided at the unicom chamber of precast concrete (13) lower part
Unicom chamber described in duct (22) unicom of being in the milk, unicom chamber are located at the bottom of sleeve (4), and unicom chamber uses unicom chamber sealing material
(18) it seals.
8. device according to claim 7, which is characterized in that vertical reinforcement sleeve is in the milk connector setting in precast concrete
Component (13) arranged on left and right sides or vertical reinforcement sleeve grouting connector are distributed along precast concrete (13) border.
9. device according to claim 8, which is characterized in that grouting duct (22) is concentrated to be located at precast concrete
(13) top, and between vertical reinforcement sleeve grouting connector.
10. device according to claim 9, which is characterized in that each vertical reinforcement sleeve grouting connector includes sleeve
(4), connection reinforcing bar (11) and grout outlet (9)；It connects reinforcing bar (11) to be partly located in sleeve (4), sleeve (4) bottom unicom unicom
There is pulp pore (5), pulp pore (5) to be located at precast concrete (13) surface top, grout outlet for chamber, grout outlet (9)
(9) it is extend into precast concrete (13) the simultaneously slurry outlet (7) on unicom sleeve (4) top, is filled out of grouting duct (22)
Enter grouting material (12), grouting material (12) along concentrating grouting duct (22) to enter unicom chamber, and from the opening of sleeve (4) bottom into
Enter into sleeve, and grouting material (12) is made to be distributed in unicom chamber, sleeve (4) and grout outlet (9).
11. according to the device described in one of claim 5-10, which is characterized in that described device is a kind of precast concrete
The grouting material plumpness detection device of interior vertical reinforcement sleeve grouting connector.
12. according to the device described in one of claim 5-10, which is characterized in that described device is a kind of precast concrete
Inside it is provided only with the grouting material plumpness detection device of the vertical reinforcement sleeve grouting connector of slurry outlet.
13. device as claimed in claim 10, which is characterized in that connector, the pulp that slurry outlet (7) is connect with grout outlet (9)
Pipe (9) is made of the good nonmetallic materials of insulation performance.
14. the device as described in one of claim 1-2,5-10, which is characterized in that as measurement result is more than predetermined resistance
When, then judge that the metal detection line end point of the insertion detection hole (51) does not have grouting material or not full, further judges
Discontinuously, i.e., the grouting material plumpness of the described connector does not meet quality requirement to grouting material (12) in connector.
15. the device as described in one of claim 1-2,5-10, which is characterized in that the installation position of the detection hole (51)
For：The minimum altitude position for the grouting material upper surface being perfused in the corresponding sleeve of least anchorage length value (4) as defined in the connector
It sets.
16. connecting the detection device of reinforcing bar in a kind of precast concrete in vertical reinforcement sleeve grouting connector, use is special
Measuring device measures and determines that the connection reinforcing bar of corresponding position in sleeve whether there is, and the special measurement device includes a pair of of gold
Belong to detection line (62) and resistance measurement instrument (1), one end of the metal detection line (62) are each passed through the steel of sleeve (4) side wall
Muscle exploration hole (52) and insertion sleeve (4) inner cavity, the other end are reached respectively outside precast concrete surface, resistance measuring instrument
The measurement line of table (1) is separately connected the other end of metal detection line (62), and resistance measurement instrument (1) measures the pair of metal and visits
Survey line (62) reaches the resistance value between two metal terminations of precast concrete (13) outside, if measurement result is in predetermined electricity
When below resistance value, then it is assumed that nearby have connection reinforcing bar (11) between a pair of of metal detection line (62) in sleeve, such as measurement result
When more than predetermined resistance, then it is assumed that nearby without connection reinforcing bar (11) between a pair of of metal detection line (62) in sleeve.
17. device according to claim 16, which is characterized in that as measurement result is suitable or close with predetermined resistance
When, then judge sleeve this to metal detection line (62) nearby there are grouting material (12) but there is no connection reinforcing bar (11).
18. device according to claim 17, which is characterized in that when being much larger than predetermined resistance such as measurement result, then sentence
Breaking, to metal detection line (62), nearby there is no grouting materials (12) at this for the sleeve, without can be determined whether there is connection reinforcing bar
(11)。
19. device as claimed in claim 18, which is characterized in that the metal detection line (62) is in detected sleeve (4)
It is more than side wall setting a pair.
20. a kind of grout sleeve being applied in claim 1-19 described devices, the grout sleeve are that monoblock type is in the milk entirely
Sleeve, split type full grout sleeve, half grout sleeve of monoblock type or split type half grout sleeve.
21. the side wall of grout sleeve according to claim 20, the grout sleeve is equipped with reinforcing bar exploration hole (52).
22. the side wall of grout sleeve according to claim 20, the grout sleeve is equipped with detection hole (51).
23. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that grouting material used in connector has
Conductive time range be grouting material initial set after in 36-168 hours.
24. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that grouting material used in connector has
Conductive time range be grouting material initial set after in 72-120 hours.
25. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that grouting material used in connector has
Conductive time range be grouting material initial set after in 36-120 hours.
26. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that the resistance measurement instrument is million
Europe table or multimeter.
27. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that sleeve is by structural steel, stainless
Steel, cast iron, cast steel, FRP or CFRP materials are made；Grouting material be not complete aquation when it is conductive, and completely after aquation not
Conductive grouting material.
28. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that the predetermined resistance is 100-
3000M Ω。
29. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that the predetermined resistance is 100-
1500MΩ。
30. the device as described in one of claim 1-2,5-10,16-19, which is characterized in that the predetermined resistance is 500M
Ω, 800M Ω, 1000M Ω, 1500M Ω, 2000M Ω, 2500M Ω or 2800M Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721897216.8U CN208076437U (en) | 2017-12-29 | 2017-12-29 | A kind of grouting material plumpness detection device, the detection device and grout sleeve for connecting reinforcing bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721897216.8U CN208076437U (en) | 2017-12-29 | 2017-12-29 | A kind of grouting material plumpness detection device, the detection device and grout sleeve for connecting reinforcing bar |
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| Publication Number | Publication Date |
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| CN208076437U true CN208076437U (en) | 2018-11-09 |
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ID=64034185
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|---|---|---|---|
| CN201721897216.8U Expired - Fee Related CN208076437U (en) | 2017-12-29 | 2017-12-29 | A kind of grouting material plumpness detection device, the detection device and grout sleeve for connecting reinforcing bar |
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| CN (1) | CN208076437U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211909A (en) * | 2018-11-12 | 2019-01-15 | 上海市建筑科学研究院 | A kind of detection method of the sleeve grouting plumpness based on drill core pore-forming |
| CN109374689A (en) * | 2018-12-25 | 2019-02-22 | 中冶建筑研究总院有限公司 | The device and method that grouting material plumpness is detected in a kind of pair of precast concrete |
| CN109799283A (en) * | 2019-01-16 | 2019-05-24 | 昆山市建设工程质量检测中心 | A kind of method of quick judgement prefabricated concrete structure middle sleeve grouting full weight |
| CN109991398A (en) * | 2019-01-03 | 2019-07-09 | 北京中建建筑科学研究院有限公司 | Device and method for detecting grouting fullness of steel bar sleeve |
| CN110261403A (en) * | 2019-05-06 | 2019-09-20 | 昆山市建设工程质量检测中心 | A kind of device and method for grouting construction stage detection sleeve grouting full weight |
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- 2017-12-29 CN CN201721897216.8U patent/CN208076437U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211909A (en) * | 2018-11-12 | 2019-01-15 | 上海市建筑科学研究院 | A kind of detection method of the sleeve grouting plumpness based on drill core pore-forming |
| CN109211909B (en) * | 2018-11-12 | 2021-01-22 | 上海市建筑科学研究院 | Sleeve grouting fullness detection method based on core drilling pore-forming |
| CN109374689A (en) * | 2018-12-25 | 2019-02-22 | 中冶建筑研究总院有限公司 | The device and method that grouting material plumpness is detected in a kind of pair of precast concrete |
| CN109374689B (en) * | 2018-12-25 | 2024-04-05 | 中冶建筑研究总院有限公司 | Device and method for detecting filling material fullness in precast concrete member |
| CN109991398A (en) * | 2019-01-03 | 2019-07-09 | 北京中建建筑科学研究院有限公司 | Device and method for detecting grouting fullness of steel bar sleeve |
| CN109799283A (en) * | 2019-01-16 | 2019-05-24 | 昆山市建设工程质量检测中心 | A kind of method of quick judgement prefabricated concrete structure middle sleeve grouting full weight |
| CN109799283B (en) * | 2019-01-16 | 2019-09-03 | 昆山市建设工程质量检测中心 | A kind of method of quick judgement prefabricated concrete structure middle sleeve grouting full weight |
| CN110261403A (en) * | 2019-05-06 | 2019-09-20 | 昆山市建设工程质量检测中心 | A kind of device and method for grouting construction stage detection sleeve grouting full weight |
| CN110261403B (en) * | 2019-05-06 | 2020-04-10 | 昆山市建设工程质量检测中心 | Device and method for detecting grouting fullness of sleeve in grouting construction stage |
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