A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Integration of ground penetrating radar and infrared thermography for bridge deck condition testing
Ground penetrating radar and infrared thermography have been applied separately by several agencies as tools for bridge deck condition assessment. Some agencies have preferred one technique over the other, and each technique has its strengths and limitations. While combining the data from the two techniques has been mentioned, there is limited reported work describing the combined use of the results. The work described in this paper demonstrates how these two technologies can be economically combined using a multilevel survey approach. The approach exploits the strengths and minimizes the limitations of each technique, so that more information can be provided through the combination than could otherwise be obtained using each technique separately. The work was carried out on 45 bridge decks in Wisconsin, and included infrared thermography and ground penetrating radar data collection, visual surveys of the underside of the deck and selective core sampling. A Level 1 analysis was initially conducted to screen out decks in good condition and to focus a more detailed (Level 2) analysis on decks that would most likely be programmed for future maintenance and rehabilitation. The strengths and limitations of each technique were considered in carrying out the data analysis. For example, ground penetrating radar reinforcement bar depth data were used for each deck to determine the depth limitations of infrared thermography detection. Where the reinforcement bar was too deep, infrared thermography was used to identify overlay disbonding, while ground penetrating radar was used to identify reinforcement bar depth deterioration. For decks not well suited for ground penetrating radar, infrared thermography provided necessary deterioration information. This paper describes the methodology equipment used, field data collection, analysis techniques and integration of results obtained from the two types of surveys.
Integration of ground penetrating radar and infrared thermography for bridge deck condition testing
Ground penetrating radar and infrared thermography have been applied separately by several agencies as tools for bridge deck condition assessment. Some agencies have preferred one technique over the other, and each technique has its strengths and limitations. While combining the data from the two techniques has been mentioned, there is limited reported work describing the combined use of the results. The work described in this paper demonstrates how these two technologies can be economically combined using a multilevel survey approach. The approach exploits the strengths and minimizes the limitations of each technique, so that more information can be provided through the combination than could otherwise be obtained using each technique separately. The work was carried out on 45 bridge decks in Wisconsin, and included infrared thermography and ground penetrating radar data collection, visual surveys of the underside of the deck and selective core sampling. A Level 1 analysis was initially conducted to screen out decks in good condition and to focus a more detailed (Level 2) analysis on decks that would most likely be programmed for future maintenance and rehabilitation. The strengths and limitations of each technique were considered in carrying out the data analysis. For example, ground penetrating radar reinforcement bar depth data were used for each deck to determine the depth limitations of infrared thermography detection. Where the reinforcement bar was too deep, infrared thermography was used to identify overlay disbonding, while ground penetrating radar was used to identify reinforcement bar depth deterioration. For decks not well suited for ground penetrating radar, infrared thermography provided necessary deterioration information. This paper describes the methodology equipment used, field data collection, analysis techniques and integration of results obtained from the two types of surveys.
Integration of ground penetrating radar and infrared thermography for bridge deck condition testing
Integration von Bodenradar und Infrarotthermographie zur Zustandsprüfung von Brückenbelägen
Maser, Kenneth R. (author)
Materials Evaluation ; 66 ; 1130-1136
2008
7 Seiten, 7 Bilder, 1 Tabelle, 7 Quellen
Article (Journal)
English
| British Library Online Contents | 2017
Bridge deck condition assessment using ground penetrating radar
| Tema Archive | 2006