Intelligent orthotropic steel bridge deck fatigue cracking detection robot

A steel bridge deck, fatigue cracking technology, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of heavy workload, time-consuming, wrong detection, etc., and achieve the effect of maintaining stable operation and stable and accurate transmission.

Pending Publication Date: 2020-04-17
川南城际铁路有限责任公司
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Problems solved by technology

The fatigue crack detection of steel bridges in the prior art requires the inspectors to have a high technical level, and the manual inspection method has a large workload, takes a long time, requires a lot of manpower, and is prone to missing inspections due to the negligence of operators. , the case of wrong detection

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  • Intelligent orthotropic steel bridge deck fatigue cracking detection robot
  • Intelligent orthotropic steel bridge deck fatigue cracking detection robot
  • Intelligent orthotropic steel bridge deck fatigue cracking detection robot

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Embodiment Construction

[0033] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0034] In the prior art, the detection methods for steel bridge fatigue crack detection mainly include: visual inspection, magnetic particle inspection, penetrant inspection, radiographic inspection and the like. Various detection methods have their own scope of application and technical requirements, especially for complex structures of orthotropic steel bridge decks, it is difficult to complete bridge detection through intelligent and automated means. At present, in order to ensure the safe operation of bridges, it usually takes a lot of manpower to complete the detection of fatigue cracks in steel bridges. After research, we found that ultrasonic non-destructive testing technology can detect surface cracks and internal cracks of componen...

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Abstract

The invention, which relates to the technical field of orthotropic steel bridge deck fatigue crack detection, discloses an intelligent orthotropic steel bridge deck fatigue crack detection robot comprising a top plate walking detection device, a longitudinal rib walking device, an electric drive telescopic mechanism and an electric drive swing mechanism. The top plate walking detection device andthe longitudinal rib walking device are provided with crawlers respectively; a plurality of electromagnets are arranged on the outer sides of crawler belts of the crawlers to achieve adsorption of thecrawler belts on a top plate or longitudinal ribs. An ultrasonic detector is arranged on the top plate walking detection device and can move close to or away from a crawler; the top plate walking detection device is connected with the electric drive telescopic mechanism, the joint of the top plate walking detection device and the electric drive telescopic mechanism can rotate, the electric driveswing mechanism is connected with the other end of the electric drive telescopic mechanism and can swing at the joint, and the longitudinal rib walking device is connected with the other end of the electric drive swing mechanism and can rotate. The robot can complete automatic detection of the orthotropic steel bridge deck slab, the traditional manual detection mode is changed, the manpower can besaved effectively, the detection efficiency is high; and the detection data are reliable.

Description

technical field [0001] The invention relates to the technical field of fatigue crack detection of orthotropic steel bridge decks, in particular to an intelligent robot for fatigue crack detection of orthotropic steel bridge decks. Background technique [0002] Orthotropic steel bridge deck has the advantages of light weight, high strength, good economy, high bearing capacity and wide application range, etc. It has been widely used in various structural forms and bridges with different spans. Its structure is as follows: figure 1 As shown, several longitudinal ribs are welded in parallel at the bottom of the steel roof, and web stiffeners are welded at the ends of the longitudinal ribs to increase its structural strength. However, due to the complex structure of orthotropic steel bridge decks, serious fatigue cracking problems will occur after several years of operation, which greatly threatens the operational safety of the bridge. [0003] Fatigue cracking of orthotropic st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12G01N29/04E01D101/30
CPCE01D19/125E01D2101/30G01N29/04
Inventor 韩冰吴再新唐勇徐代宏郭德平段青松勾红叶王君明王海波
Owner 川南城际铁路有限责任公司
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