scholarly journals Imaging radar for bridge deck inspection

1995 ◽  
Author(s):  
John P. Warhus ◽  
Jeffrey E. Mast ◽  
Scott D. Nelson
Keyword(s):  
Bridge Deck ◽  
Imaging Radar ◽  
Bridge Deck Inspection

scholarly journals Data analysis and visualization for the bridge deck inspection and evaluation robotic system

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Hung Manh La ◽  
Nenad Gucunski ◽  
Seong-Hoon Kee ◽  
Luan Van Nguyen
Keyword(s):  
Data Analysis ◽  
Bridge Deck ◽  
Robotic System ◽  
Bridge Deck Inspection

scholarly journals Mechatronic Systems Design for an Autonomous Robotic System for High-Efficiency Bridge Deck Inspection and Evaluation

2013 ◽  
Vol 18 (6) ◽  
pp. 1655-1664 ◽  
Author(s):  
Hung M. La ◽  
Ronny Salim Lim ◽  
Basily B. Basily ◽  
Nenad Gucunski ◽  
Jingang Yi ◽  
...  
Keyword(s):  
Bridge Deck ◽  
High Efficiency ◽  
Systems Design ◽  
Robotic System ◽  
Mechatronic Systems ◽  
Bridge Deck Inspection

scholarly journals Ground-penetrating imaging radar development for bridge deck and road bed inspection

1993 ◽  
Author(s):  
J.P. Warhus ◽  
J.E. Mast ◽  
S.D. Nelson ◽  
E.M. Johansson
Keyword(s):  
Bridge Deck ◽  
Imaging Radar ◽  
Ground Penetrating

scholarly journals Detection of Delamination with Various Width-to-depth Ratios in Concrete Bridge Deck Using Passive IRT: Limits and Applicability

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3996 ◽  
Author(s):  
Van Ha Mac ◽  
Quang Huy Tran ◽  
Jungwon Huh ◽  
Nhu Son Doan ◽  
Choonghyun Kang ◽  
...  
Keyword(s):  
Bridge Deck ◽  
Concrete Specimen ◽  
Concrete Bridge ◽  
Bridge Inspection ◽  
Ir Camera ◽  
Structure Surface ◽  
Bridge Structures ◽  
Bridge Deck Inspection ◽  
Concrete Bridge Deck ◽  
Good Agreement

In bridge structures, concrete decks have a higher risk of damage than other components owing to the direct impact of traffic. This study aims to develop a comprehensive system for bridge inspection using passive infrared thermography (IRT). Experiments were conducted on a concrete specimen (assumed as the surface of the bridge deck) embedded artificial delaminations with different width-to-depth ratios (WTDRs). Both professional handheld IR camera (H-IRC) and a UAV mounted with an IR camera (UAV-IRC) were employed simultaneously to capture the surface temperature of the structure. The present work indicates that the passive IRT technique with an H-IRC can be used to detect delaminations located at depths of 4 cm or less from the structure surface if the WTDRs are not lesser than 1.9 for daytime and 2.5 for nighttime when testing on a sunny day. In addition, the larger the WTDR, the higher the temperature difference can be produced, thus delaminations could be observed more clearly. Furthermore, our study suggests that the concrete bridge deck inspection using passive IRT can produce appropriate results if the inspection is performed from 10:00 to 15:00 or from 19:30 to approximately 2:00 on a sunny day. Good agreement between the results obtained from tests using H-IRC and UAV-IRC was observed, which validates the application of UAV-IRC in real structure inspection.

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