CN110160437A - A kind of protective layer thickness test method of the separate type reinforcing bar based on ECC - Google Patents
A kind of protective layer thickness test method of the separate type reinforcing bar based on ECC Download PDFInfo
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- CN110160437A CN110160437A CN201910576283.7A CN201910576283A CN110160437A CN 110160437 A CN110160437 A CN 110160437A CN 201910576283 A CN201910576283 A CN 201910576283A CN 110160437 A CN110160437 A CN 110160437A
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- reinforcing bar
- protective layer
- layer thickness
- instrument
- separate type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention discloses a kind of protective layer thickness test method of separate type reinforcing bar based on ECC.The protective layer thickness test method of the separate type reinforcing bar based on ECC; include the following steps: to detect reinforcement location: preparing detecting instrument; then it will test instrument and be scanned at the uniform velocity mobile detection on armored concrete surface layer, while observing the signal receiving strength of detecting instrument.The protective layer thickness test method of the separate type reinforcing bar based on ECC, the detecting instrument used is electromagnetic induction device, the electromagnetic field and tested reinforcing bar generated by electromagnetic induction device generates the signal transmitting between Induced magnetic field, to accurately measure the position of tested reinforcing bar and the diameter of reinforcing bar, by the verification of multiple measurement data, the average value of final data is the thickness of the protective layer of reinforcing bar, after determining tested reinforcement location, detection and data record are independently completed by measuring instrument completely, substantially reduce human error, so that detection data is more accurate.
Description
Technical field
The present invention relates to detection technique of rebar field, the protective layer thickness of specially a kind of separate type reinforcing bar based on ECC
Test method.
Background technique
Since in-situ reinforced concrete slab comes out, " classics " mode of floor arrangement of reinforcement is divided into separate type and continous way
Two kinds, both are suitable for single layer arrangement of reinforcement, and not existing together is seat shoulder bar: continuous, bottom muscle has half not enter support,
With " curved device double 45 ° curved, has become seat shoulder bar, this mode is it has now been found that stress at a certain distance from from support edges
It is unreasonable, construction is inconvenient and is eliminated；Separate type is then that bottom muscle, negative reinforcement are respectively respectively, and modern single layer arrangement of reinforcement technique all uses,
So-called separate type reinforcing bar connection is exactly in the bottom of plate with principal rod, and that of seat shoulder bar, principal rod and branch are matched at support
Seat negative reinforcement is different reinforcing bar, and the formula that bends up then refers to that principal rod has arrived that just bent up at support, and plate reinforcement manner has separation
Formula and two kinds of formula are bent up, usually we see in the majority with separate type, and the support that it is mainly disposed at plate is curved, and position is risen upper
Hogging moment effect is resisted, and bending up formula is that reinforcement will bent up at the support, bends up and carry out part reinforcing bar and be distributed in
Surface layer bends up formula and saves amount of reinforcement to resist hogging moment；Thickness of protection tier, for concrete structural surface to being advocated
Distance on the outside of muscle, for plain bar, minimum range between concrete surface and rebar surface, for Ribbed Bar, mesh
Before, in order to analyze the quality of concrete and the endurance of concrete, need to detect the reinforcing bar of inside concrete, wherein
Thickness including detecting cover to reinforcement.
In the prior art, error existing for the thickness detecting method of cover to reinforcement is larger, so that concrete quality is examined
The data precision of survey is lower, to increase difficulty of construction, use while reducing working efficiency to user is made troubles.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the protective layer thickness of the present invention provides a kind of separate type reinforcing bar based on ECC is surveyed
Method for testing solves in the prior art, and error existing for the thickness detecting method of cover to reinforcement is larger, so that coagulation soil property
The data precision of amount detection is lower, thus the problem of increasing difficulty of construction.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of separate type reinforcing bar based on ECC
Protective layer thickness test method, include the following steps:
S1, detection reinforcement location: prepare detecting instrument, then will test instrument be scanned on armored concrete surface layer it is even
The mobile detection of speed, while observing the signal receiving strength of detecting instrument；
S2, it determines reinforcement location: when the signal strength of detecting instrument reaches peak value, stopping movement, then will test instrument
Different directions slightly move device around respectively, if signal strength crosses peak value and has a declining tendency, may thereby determine that
Signal most strength is reinforcing bar position；
S3, measurement thickness of protection tier: the same position that will test instrument in every reinforcing bar takes multiple measurements, and remembers
Record corresponding measured value；
S4, data validation: if two protective layer thickness values that same place is read differ by more than one millimeter, this two groups of data
Confirmation is invalid, inspection apparatus, confirmation without damage it is subsequent continue detected again in original detection position, if two detected again group
The difference of protective layer thickness value is still greater than one millimeter, then the method for replacing detecting instrument or drilling is verified；
S5, data validation: the detection data by multiple groups error less than one millimeter is listed, and then calculates the flat of all data
Mean value, the average value are the protective layer thickness value of reinforcing bar.
Preferably, in step sl, detecting instrument uses the concrete cover analyzer of HBY-84A model, main logical
It crosses the instrument and generates alternating electromagnetic field, which can generate strong induced electromagnetic field, thus instrument when tested reinforcing bar
The signal of induced electromagnetic field can be received, while converting the signal into electric signal, and then calculates the position of reinforcing bar, protection thickness
Degree and bar diameter.
Preferably, in step sl, it before using detecting instrument, needs to be calibrated using calibration test specimen, determines reinforcing bar
The allowable error range of protective layer thickness detection data, while the spare and accessory parts of detecting instrument are overhauled, after confirmation is without damage
Just can be used, in this way can to avoid detecting instrument damage and influence final detection data, to indirectly improve data
Accuracy.
Preferably, in step sl, before detection, the distribution situation of reinforcing bar should be understood in conjunction with design data, when detection, is avoided
The position of splice and binding silk, when mobile detection apparatus, should move along the axis direction of reinforcing bar.
Preferably, in step s 2, received signal is most strong when detecting instrument is located at reinforcing bar surface, passes through detecting instrument
The power of signal is received when moving above tested reinforcing bar, it can be determined that go out the position of reinforcing bar, signal is most strong in a certain position, if
When will test instrument and moving around, there is downward trend in signal, to judge that reinforcing bar is located at the surface of detecting instrument.
Preferably, in step s3, before measurement, the range ability and bar diameter of instrument should be set, along tested reinforcing bar
Axis selects adjacent reinforcing bar to influence lesser position, detects the diameter of reinforcing bar using orthogonal measuring method, will test instrument first and set
In the surface of tested reinforcing bar, then makes the measuring state of instrument automatic switching sensor, measured twice, finally obtained
The diameter of tested reinforcing bar.
Preferably, in step s3, when detecting bar spacing, it should the identical continuous adjacent reinforcing bar of spacing will be designed one by one
It marks, and quantity needs to be greater than seven reinforcing bars, then measures the spacing of all adjacent reinforcing bars, and record out and be spaced numerical value.
Preferably, in step s 4, when error information detection is more than one millimeter, percent 30 in entire concrete are coped with
Reinforcing bar carry out multiposition and repeat to detect, if error information detection still above one millimeter, that is, can be used drilling or pick chisel
Method is verified.
(3) beneficial effect
The protective layer thickness test method of the present invention provides a kind of separate type reinforcing bar based on ECC.Have following beneficial
Effect:
The protective layer thickness test method of the separate type reinforcing bar based on ECC, the detecting instrument used set for electromagnetic induction
Standby, the electromagnetic field and tested reinforcing bar generated by electromagnetic induction device generates the signal between Induced magnetic field and transmits, thus accurately
The position for measuring tested reinforcing bar and reinforcing bar diameter, by the verification of multiple measurement data, the average value of final data is
Detection and data note are independently completed by measuring instrument completely after determining tested reinforcement location for the thickness of the protective layer of reinforcing bar
Record, substantially reduces human error, so that detection data is more accurate.
Specific embodiment
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
A kind of protective layer thickness test method of the separate type reinforcing bar based on ECC, includes the following steps:
S1, detection reinforcement location: preparing detecting instrument, and detecting instrument is surveyed using the concrete cover of HBY-84A model
Determine instrument, alternating electromagnetic field is mainly generated by the instrument, which can generate strong electromagnetism of inducting when tested reinforcing bar
, so that instrument can receive the signal of induced electromagnetic field, while electric signal is converted the signal into, and then calculate the position of reinforcing bar
It sets, protective layer thickness and bar diameter are needed to be calibrated using calibration test specimen, determine that reinforcing bar is protected before using detecting instrument
The allowable error range of covering thickness detection data, while the spare and accessory parts of detecting instrument are overhauled, confirmation is without ability after damage
Can be used, in this way can to avoid detecting instrument damage and influence final detection data, thus indirectly improve data standard
Then true property will test instrument on armored concrete surface layer and be scanned at the uniform velocity mobile detection, while observing the letter of detecting instrument
Number receiving intensity before detection, should understand the distribution situation of reinforcing bar in conjunction with design data, when detection, avoid splice and binding
The position of silk when mobile detection apparatus, should be moved along the axis direction of reinforcing bar；
S2, it determines reinforcement location: when the signal strength of detecting instrument reaches peak value, stopping movement, then will test instrument
Different directions slightly move device around respectively, if signal strength crosses peak value and has a declining tendency, may thereby determine that
Signal most strength is that (received signal is most strong when detecting instrument is located at reinforcing bar surface, passes through detector for reinforcing bar position
Device receives the power of signal when moving above tested reinforcing bar, it can be determined that go out the position of reinforcing bar, signal is most strong in a certain position,
If there is downward trend in signal when will test instrument and moving around, thus judge reinforcing bar be located at detecting instrument just on
Side)；
S3, measurement thickness of protection tier: the same position that will test instrument in every reinforcing bar takes multiple measurements, and remembers
Corresponding measured value is recorded, before measurement, the range ability and bar diameter of instrument should be set, is selected along tested reinforcing bar axis adjacent
Reinforcing bar influences lesser position, detects the diameter of reinforcing bar using orthogonal measuring method, will test instrument first and be placed in tested reinforcing bar
Surface, then makes the measuring state of instrument automatic switching sensor, is measured twice, finally obtains the straight of tested reinforcing bar
Diameter, when detecting bar spacing, it should the identical continuous adjacent reinforcing bar of spacing will be designed and marked one by one, and quantity needs to be greater than seven
Reinforcing bar, then measures the spacing of all adjacent reinforcing bars, and records out and be spaced numerical value；
S4, data validation: if two protective layer thickness values that same place is read differ by more than one millimeter, this two groups of data
Confirmation is invalid, inspection apparatus, confirmation without damage it is subsequent continue detected again in original detection position, if two detected again group
The difference of protective layer thickness value is still greater than one millimeter, then the method for replacing detecting instrument or drilling is verified (detection data
When error is more than one millimeter, multiposition should be carried out in entire concrete 30 percent reinforcing bar and repeat to detect, if detection
Data error can be used drilling or the method for picking chisel verified still above one millimeter)；
S5, data validation: the detection data by multiple groups error less than one millimeter is listed, and then calculates the flat of all data
Mean value, the average value are the protective layer thickness value of reinforcing bar.
In conclusion being somebody's turn to do the protective layer thickness test method of the separate type reinforcing bar based on ECC, the detecting instrument used is electricity
Magnetic induction equipment, the electromagnetic field and tested reinforcing bar generated by electromagnetic induction device generate the signal between Induced magnetic field and transmit,
To accurately measuring the position of tested reinforcing bar and the diameter of reinforcing bar, by the verification of multiple measurement data, final data
Average value is the thickness of the protective layer of reinforcing bar, after determining tested reinforcement location, independently completes to detect by measuring instrument completely
And data record, human error is substantially reduced, so that detection data is more accurate.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of protective layer thickness test method of the separate type reinforcing bar based on ECC, which comprises the steps of:
S1, detection reinforcement location: prepare detecting instrument, then will test instrument and be scanned on armored concrete surface layer and at the uniform velocity moved
Dynamic detection, while observing the signal receiving strength of detecting instrument；
S2, it determines reinforcement location: when the signal strength of detecting instrument reaches peak value, stopping movement, then will test instrument point
Different directions do not move slightly around, if signal strength crosses peak value and has a declining tendency, may thereby determine that signal
Most strength is reinforcing bar position；
S3, measurement thickness of protection tier: the same position that will test instrument in every reinforcing bar takes multiple measurements, and records phase
The measured value answered；
S4, data validation: if two protective layer thickness values that same place is read differ by more than one millimeter, this two groups of data validations
In vain, inspection apparatus, confirmation without damage it is subsequent continue detected again in original detection position, if two detected again group protection
The difference of layer thickness value is still greater than one millimeter, then the method for replacing detecting instrument or drilling is verified；
S5, data validation: the detection data by multiple groups error less than one millimeter is listed, and then calculates being averaged for all data
Value, which is the protective layer thickness value of reinforcing bar.
2. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 1, feature exist
In: in step sl, detecting instrument uses the concrete cover analyzer of HBY-84A model, is mainly generated by the instrument
Alternating electromagnetic field, the magnetic fields can generate strong induced electromagnetic field, induct so that instrument can receive when tested reinforcing bar
The signal of electromagnetic field, while electric signal is converted the signal into, and then the position, protective layer thickness and the reinforcing bar that calculate reinforcing bar are straight
Diameter.
3. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 1, feature exist
In: in step sl, before using detecting instrument, needs to be calibrated using calibration test specimen, determine that thickness of protection tier is examined
The allowable error range of measured data, while the spare and accessory parts of detecting instrument are overhauled, confirm without just can be used after damage, in this way
Can to avoid detecting instrument damage and influence final detection data, thus indirectly improve data accuracy.
4. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 1, feature exist
In: in step sl, before detection, the distribution situation of reinforcing bar should be understood in conjunction with design data, when detection, splice is avoided and ties up
The position of tied silk when mobile detection apparatus, should be moved along the axis direction of reinforcing bar.
5. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 1, feature exist
In: in step s 2, received signal is most strong when detecting instrument is located at reinforcing bar surface, through detecting instrument on tested reinforcing bar
When Fang Yidong receive signal power, it can be determined that go out reinforcing bar position, signal is most strong in a certain position, if will test instrument to
When moving around, there is downward trend in signal, to judge that reinforcing bar is located at the surface of detecting instrument.
6. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 1, feature exist
In: in step s3, before measurement, the range ability and bar diameter of instrument should be set, be selected along tested reinforcing bar axis adjacent
Reinforcing bar influences lesser position, detects the diameter of reinforcing bar using orthogonal measuring method, will test instrument first and be placed in tested reinforcing bar
Surface, then makes the measuring state of instrument automatic switching sensor, is measured twice, finally obtains the straight of tested reinforcing bar
Diameter.
7. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 6, feature exist
In: in step s3, when detecting bar spacing, it should the identical continuous adjacent reinforcing bar of spacing will be designed and marked one by one, and quantity
It needs to be greater than seven reinforcing bars, then measures the spacing of all adjacent reinforcing bars, and record out and be spaced numerical value.
8. a kind of protective layer thickness test method of separate type reinforcing bar based on ECC according to claim 6, feature exist
In: in step s 4, when error information detection is more than one millimeter, in entire concrete 30 percent reinforcing bar should be carried out more
Position repeats to detect, if the method that error information detection still above one millimeter, that is, can be used drilling or pick chisel is verified.
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Cited By (4)
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| CN111854666A (en) * | 2020-07-09 | 2020-10-30 | 广东雄炜建筑工程检测有限公司 | Method for scanning steel bars and detecting thickness of concrete protection layer |
| CN112858462A (en) * | 2021-04-12 | 2021-05-28 | 浙江捷安工程有限公司 | Rapid nondestructive testing method applied to standard reaching of carbon content of steel bar in concrete member |
| CN114812477A (en) * | 2022-05-31 | 2022-07-29 | 河南省新政苑工程检测有限公司 | Method for detecting distance between concrete structure wall steel bars |
| CN117112968A (en) * | 2023-10-24 | 2023-11-24 | 资阳建工建筑有限公司 | Method and system for detecting thickness of reinforcement protection layer based on big data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111854666A (en) * | 2020-07-09 | 2020-10-30 | 广东雄炜建筑工程检测有限公司 | Method for scanning steel bars and detecting thickness of concrete protection layer |
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| CN117112968A (en) * | 2023-10-24 | 2023-11-24 | 资阳建工建筑有限公司 | Method and system for detecting thickness of reinforcement protection layer based on big data |
| CN117112968B (en) * | 2023-10-24 | 2023-12-29 | 资阳建工建筑有限公司 | Method and system for detecting thickness of reinforcement protection layer based on big data |
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Application publication date: 20190823 |
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