CN103698391A - Non-destructive testing device and method for reinforced concrete bridge steel bar corrosion - Google Patents

Non-destructive testing device and method for reinforced concrete bridge steel bar corrosion Download PDF

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Publication number
CN103698391A
CN103698391A CN201410009761.3A CN201410009761A CN103698391A CN 103698391 A CN103698391 A CN 103698391A CN 201410009761 A CN201410009761 A CN 201410009761A CN 103698391 A CN103698391 A CN 103698391A
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CN
China
Prior art keywords
guide rod
bridge
gearing
checkout equipment
detection
Prior art date
Application number
CN201410009761.3A
Other languages
Chinese (zh)
Inventor
周建庭
张劲泉
陈增顺
张洪
廖棱
马虎
陈悦
宋军
杨娟
Original Assignee
重庆交通大学
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Application filed by 重庆交通大学 filed Critical 重庆交通大学
Priority to CN201410009761.3A priority Critical patent/CN103698391A/en
Publication of CN103698391A publication Critical patent/CN103698391A/en

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Abstract

The invention discloses a non-destructive testing device for reinforced concrete bridge steel bar corrosion. The non-destructive testing device drives a connection bracket to move through a transmission trolley, a guide rod is arranged on the connection bracket, testing equipment capable of sliding is arranged on the guide rod, and the testing equipment and the guide rod stretch to the lower end surface of the bridge through the connection bracket. The invention also provides a non-destructive testing method for reinforced concrete bridge steel bar corrosion based on the device. The invention has the beneficial technical effects that a new bridge testing device is provided, which enables the testing equipment to finish the bridge testing operation in a posture of getting close to the lower end surface of the bridge; the testing precision and accuracy are relatively high, and the structure is simple and convenient to control.

Description

Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device and method

Technical field

The present invention relates to a kind of Rust Examining Of Bridge Steel Bar technology, relate in particular to a kind of Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device and method.

Background technology

The corrosion of Reinforced Concrete Bridge comprises two aspects: the one, and concrete corrosion; The 2nd, the corrosion of reinforcing bar.The latter's major effect the permanance of concrete bridge construction, and is the main factor that concrete bridge construction destroys.The reason that causes inside concrete steel bar corrosion is a lot, and the various phenomenons that corrosion causes also vary, and generally all can only adopt the mode of regular detection to detect, investigate; The problem that existing detection method exists is: because reinforcing bar is embedded in bridge inside, be sightless under normal circumstances, and existing detection method generally can only just can detect problem place after extent of steel corrosion is developed to macroscopic view from outside; Another problem is that bridge thickness is larger, detects operation be difficult to find the problem near the reinforcing bar existence of bridge lower surface from bridge upper surface.

Summary of the invention

For the problem in background technology, the present invention proposes a kind of Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device, its structure is: described the cannot-harm-detection device is comprised of transmission dolly, connection bracket, guide rod, gearing and checkout equipment; Described transmission dolly is placed on bridge upper surface, transmission dolly can be on bridge unidirectional moving back and forth; Connection bracket one end is connected with transmission dolly, and the connection bracket other end is connected with guide rod, and guide rod is positioned at bridge below, and guide rod shaft is to parallel with bridge lower surface, and guide rod shaft is to vertical with the direction of motion of transmission dolly; Gearing is arranged on guide rod, and checkout equipment is connected with gearing, and under the gearing of gearing, checkout equipment can be along guide rod axially-movable.

The cannot-harm-detection device of the present invention can make checkout equipment under the state of pressing close to bridge lower surface, complete the detection to bridge substructure body, the defect of having avoided prior art to detect bridge inner structure from bridge upper surface, has improved the accuracy detecting; In addition, structure of the present invention can be made two-dimensional movement by transmission checkout equipment, and surveyed area can all be covered bridge lower surface, has guaranteed the comprehensive of detection.

On aforementioned schemes basis, inventor has also done following improvement: described connection bracket middle part is provided with telescopic section, and the action of telescopic section is driven by hydraulic means, and telescopic section can, under the driving effect of hydraulic means, regulate the level height of guide rod.After adopting this to improve, can to the level height of guide rod, regulate in real time, indirectly also just regulated the gap between pick-up unit and bridge lower surface, can play certain correcting action to detecting operation, improve the accuracy detecting, meanwhile, also can avoid the protuberance of bridge lower surface or the pipeline of laying and guide rod movement locus to interfere.

In order to improve the efficiency of detection, the present invention has also done following improvement: described guide rod quantity is two, is respectively provided with a checkout equipment and a gearing on two guide rods.

Preferably, described checkout equipment is metal magnetic memory testing instrument.The principle of metal magnetic memory testing instrument is: occur that magnetic domain tissue orientation and the irreversible reorientation of magnetostriction character can occur in the region of reinforcement corrosion, its external manifestation is local magnetic anomaly (magnetic characteristic that is different from the region that does not occur reinforcement corrosion), adopt metal magnetic memory testing instrument to scan concrete structural surface, just can capture these magnetic anomalies, thereby orient the region that occurs corrosion, although metal magnetic memory testing instrument has been reinforcing bar nondestructiving detecting means conventional in prior art, but for bridge structure, because bridge thickness is larger, inner steel bar is numerous, if only end face detects from it, cannot find the corrosion of reinforcing steel bar near bridge lower surface, cause measuring structure inaccurate, and after metal magnetic memory testing instrument is combined with the present invention program, metal magnetic memory testing instrument can scan bridge lower surface under the state of pressing close to bridge lower surface, this just can find the inner corrosion of reinforcing steel bar near region, bridge lower surface of bridge exactly, thereby pinpoint the problems in time.Certainly, pick-up unit of the present invention can also be existing other devices for structure detection, as ultrasonic detection device, video detecting device etc.

Based on aforesaid device, the invention allows for and mate a kind of Reinforced Concrete Bridge steel bar corrosion lossless detection method adopting with device, during detection, by following operation steps, undertaken:

1) transmission moving of car is to parked behind a certain detection position;

2) actuator drives checkout equipment motion, after equipment to be detected has all detected the region in guide rod length range, gearing is parked, returns to step 1);

Repeating step 1), 2) operation, until region, bridge lower surface has all been detected.

Detection method of the present invention can be controlled the cannot-harm-detection device bridge lower surface is scanned piecemeal, and spreadability is strong, without detecting blind area.

Useful technique effect of the present invention is: a kind of new bridge detecting device is provided, this pick-up unit can make checkout equipment complete the detection operation to bridge to press close to the attitude of bridge lower surface, accuracy of detection and accuracy are all higher, simple in structure, and it is convenient to control.

Accompanying drawing explanation

Fig. 1, structural representation of the present invention;

Fig. 2, structural representation of the present invention two;

In figure, the corresponding title of each mark is respectively: transmission dolly 1, connection bracket 2, guide rod 3, gearing 4, checkout equipment 5, bridge 6.

Embodiment

A Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device, described the cannot-harm-detection device is comprised of transmission dolly 1, connection bracket 2, guide rod 3, gearing 4 and checkout equipment 5; Described transmission dolly 1 is placed on bridge upper surface, transmission dolly 1 can be on bridge unidirectional moving back and forth; Connection bracket 2 one end are connected with transmission dolly 1, and connection bracket 2 other ends are connected with guide rod 3, and guide rod 3 is positioned at bridge below, and guide rod 3 is axially parallel with bridge lower surface, and guide rod 3 is axially vertical with the direction of motion of transmission dolly 1; Gearing 4 is arranged on guide rod 3, and checkout equipment 5 is connected with gearing 4, and under the gearing of gearing 4, checkout equipment 5 can be along guide rod 3 axially-movables.

Further, described connection bracket 2 middle parts are provided with telescopic section, and the action of telescopic section is driven by hydraulic means, and telescopic section can, under the driving effect of hydraulic means, regulate the level height of guide rod 3.

Further, described guide rod 3 quantity are two, are respectively provided with a checkout equipment 5 and a gearing 4 on two guide rods 3.

Further, described checkout equipment 5 is metal magnetic memory testing instrument.

A Reinforced Concrete Bridge steel bar corrosion lossless detection method, the hardware relating to has transmission dolly 1, connection bracket 2, guide rod 3, gearing 4 and checkout equipment 5; Described transmission dolly 1 is placed on bridge upper surface, transmission dolly 1 can be on bridge unidirectional moving back and forth; Connection bracket 2 one end are connected with transmission dolly 1, and connection bracket 2 other ends are connected with guide rod 3, and guide rod 3 is positioned at bridge below, and guide rod 3 is axially parallel with bridge lower surface, and guide rod 3 is axially vertical with the direction of motion of transmission dolly 1; Gearing 4 is arranged on guide rod 3, and checkout equipment 5 is connected with gearing 4, and under the gearing of gearing 4, checkout equipment 5 can be along guide rod 3 axially-movables;

During detection, by following operation steps, undertaken:

1) transmission dolly 1 moves to behind a certain detection position parked;

2) gearing 4 drives checkout equipment 5 motions, and after equipment 5 to be detected has all detected the region in guide rod 3 length ranges, gearing 4 is parked, returns to step 1);

Repeating step 1), 2) operation, until region, bridge lower surface has all been detected.

Claims (5)

1. a Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device, is characterized in that: described the cannot-harm-detection device is comprised of transmission dolly (1), connection bracket (2), guide rod (3), gearing (4) and checkout equipment (5); Described transmission dolly (1) is placed on bridge upper surface, transmission dolly (1) can be on bridge unidirectional moving back and forth; Connection bracket (2) one end is connected with transmission dolly (1), connection bracket (2) other end is connected with guide rod (3), guide rod (3) is positioned at bridge below, and guide rod (3) is axially parallel with bridge lower surface, and guide rod (3) is axially vertical with the direction of motion of transmission dolly (1); It is upper that gearing (4) is arranged at guide rod (3), and checkout equipment (5) is connected with gearing (4), and under the gearing of gearing (4), checkout equipment (5) can be along guide rod (3) axially-movable.
2. Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device according to claim 1, it is characterized in that: described connection bracket (2) middle part is provided with telescopic section, the action of telescopic section is driven by hydraulic means, telescopic section can, under the driving effect of hydraulic means, regulate the level height of guide rod (3).
3. Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device according to claim 1, is characterized in that: described guide rod (3) quantity is two, is respectively provided with a checkout equipment (5) and a gearing (4) on two guide rods (3).
4. Reinforced Concrete Bridge steel bar corrosion the cannot-harm-detection device according to claim 1, is characterized in that: described checkout equipment (5) is metal magnetic memory testing instrument.
5. a Reinforced Concrete Bridge steel bar corrosion lossless detection method, is characterized in that: the hardware relating to has transmission dolly (1), connection bracket (2), guide rod (3), gearing (4) and checkout equipment (5); Described transmission dolly (1) is placed on bridge upper surface, transmission dolly (1) can be on bridge unidirectional moving back and forth; Connection bracket (2) one end is connected with transmission dolly (1), connection bracket (2) other end is connected with guide rod (3), guide rod (3) is positioned at bridge below, and guide rod (3) is axially parallel with bridge lower surface, and guide rod (3) is axially vertical with the direction of motion of transmission dolly (1); It is upper that gearing (4) is arranged at guide rod (3), and checkout equipment (5) is connected with gearing (4), and under the gearing of gearing (4), checkout equipment (5) can be along guide rod (3) axially-movable;
During detection, by following operation steps, undertaken:
1) transmission dolly (1) moves to behind a certain detection position parked;
2) gearing (4) drives checkout equipment (5) motion, and after equipment to be detected (5) has all detected the region in guide rod (3) length range, gearing (4) is parked, returns to step 1);
Repeating step 1), 2) operation, until region, bridge lower surface has all been detected.
CN201410009761.3A 2014-01-09 2014-01-09 Non-destructive testing device and method for reinforced concrete bridge steel bar corrosion CN103698391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410009761.3A CN103698391A (en) 2014-01-09 2014-01-09 Non-destructive testing device and method for reinforced concrete bridge steel bar corrosion

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Application Number Priority Date Filing Date Title
CN201410009761.3A CN103698391A (en) 2014-01-09 2014-01-09 Non-destructive testing device and method for reinforced concrete bridge steel bar corrosion

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614440A (en) * 2015-02-10 2015-05-13 重庆交通大学 Reinforced concrete bridge structural internal reinforcing bar corrosion monitoring device and reinforced concrete bridge structural internal reinforcing bar corrosion monitoring method
CN104634860A (en) * 2015-02-10 2015-05-20 重庆交通大学 Device and method for monitoring steel bar yield state in reinforced concrete bridge structure
CN104634865A (en) * 2015-02-10 2015-05-20 重庆交通大学 Detection device and method for positioning rusty part of steel bridge deck
CN104898706A (en) * 2015-04-30 2015-09-09 长安大学 Transportable type dynamic monitoring holder in tunnel
CN105133490A (en) * 2015-09-10 2015-12-09 来安县新元机电设备设计有限公司 Bridge detection device and detection method thereof
CN106053592A (en) * 2016-06-13 2016-10-26 河海大学 Real bridge weld joint scanner and real bridge weld joint scanning method
CN106758810A (en) * 2017-03-20 2017-05-31 温州佰晟建设有限公司 A kind of Cantilever Bridges maintain platform
CN107238602A (en) * 2017-06-12 2017-10-10 鲁东大学 A kind of detection robot for being used to detect distress in concrete and steel bar corrosion
CN107300584A (en) * 2017-07-05 2017-10-27 黄冈职业技术学院 Corrosion of steel structure Magnetic sensing methods in a kind of armored concrete
CN107515244A (en) * 2017-09-01 2017-12-26 长春工程学院 A kind of reinforced concrete structure the cannot-harm-detection device
CN107632056A (en) * 2017-09-29 2018-01-26 四川理工学院 A kind of reinforced concrete structure the cannot-harm-detection device

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DE1127564B (en) * 1960-10-08 1962-04-12 Vincenzo Di Benedetto Mobile and height-adjustable work platform articulated mast
EP0156304A2 (en) * 1984-03-24 1985-10-02 Alfons Moog Apparatus for the inspection of the underside of bridges
CN101215821A (en) * 2007-12-29 2008-07-09 武汉武大巨成加固实业有限公司 Device for detecting and maintaining mobile bridge structure
CN101624810A (en) * 2009-08-05 2010-01-13 燕山大学 Bridge inspection vehicle
CN201826257U (en) * 2010-10-27 2011-05-11 宋金博 Fast detection vehicle for bridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127564B (en) * 1960-10-08 1962-04-12 Vincenzo Di Benedetto Mobile and height-adjustable work platform articulated mast
EP0156304A2 (en) * 1984-03-24 1985-10-02 Alfons Moog Apparatus for the inspection of the underside of bridges
CN101215821A (en) * 2007-12-29 2008-07-09 武汉武大巨成加固实业有限公司 Device for detecting and maintaining mobile bridge structure
CN101624810A (en) * 2009-08-05 2010-01-13 燕山大学 Bridge inspection vehicle
CN201826257U (en) * 2010-10-27 2011-05-11 宋金博 Fast detection vehicle for bridge

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614440B (en) * 2015-02-10 2017-08-04 重庆交通大学 Reinforced steel bar erosion monitoring device and method inside concrete bridge construction
CN104634860A (en) * 2015-02-10 2015-05-20 重庆交通大学 Device and method for monitoring steel bar yield state in reinforced concrete bridge structure
CN104634865A (en) * 2015-02-10 2015-05-20 重庆交通大学 Detection device and method for positioning rusty part of steel bridge deck
CN104634860B (en) * 2015-02-10 2017-10-03 重庆交通大学 Reinforcement yielding state monitoring apparatus and method inside concrete bridge construction
CN104634865B (en) * 2015-02-10 2017-08-11 重庆交通大学 Steel Bridge Deck corrosion spots localization detection means and method
CN104614440A (en) * 2015-02-10 2015-05-13 重庆交通大学 Reinforced concrete bridge structural internal reinforcing bar corrosion monitoring device and reinforced concrete bridge structural internal reinforcing bar corrosion monitoring method
CN104898706A (en) * 2015-04-30 2015-09-09 长安大学 Transportable type dynamic monitoring holder in tunnel
CN104898706B (en) * 2015-04-30 2018-10-12 长安大学 Packaged type dynamic monitoring head in a kind of tunnel
CN105133490A (en) * 2015-09-10 2015-12-09 来安县新元机电设备设计有限公司 Bridge detection device and detection method thereof
CN106053592A (en) * 2016-06-13 2016-10-26 河海大学 Real bridge weld joint scanner and real bridge weld joint scanning method
CN106053592B (en) * 2016-06-13 2018-04-20 河海大学 Real bridge welding seam scanner and its scan method
CN106758810A (en) * 2017-03-20 2017-05-31 温州佰晟建设有限公司 A kind of Cantilever Bridges maintain platform
CN106758810B (en) * 2017-03-20 2017-11-24 温州佰晟建设有限公司 A kind of Cantilever Bridges maintain platform
CN107238602A (en) * 2017-06-12 2017-10-10 鲁东大学 A kind of detection robot for being used to detect distress in concrete and steel bar corrosion
CN107300584A (en) * 2017-07-05 2017-10-27 黄冈职业技术学院 Corrosion of steel structure Magnetic sensing methods in a kind of armored concrete
CN107515244A (en) * 2017-09-01 2017-12-26 长春工程学院 A kind of reinforced concrete structure the cannot-harm-detection device
CN107632056A (en) * 2017-09-29 2018-01-26 四川理工学院 A kind of reinforced concrete structure the cannot-harm-detection device

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Application publication date: 20140402