Protocols and criteria for acoustic emission monitoring of fracture-critical steel bridges /
With bridge infrastructure in Minnesota aging, advancing techniques for ensuring bridge safety is a fundamental goal of the Minnesota Department of Transportation (MnDOT). Developing health monitoring systems for fracture-critical bridges is an essential objective in meeting the stated goal. This re...
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| Corporate Authors: | , |
| Other Authors: | , |
| Format: | Book |
| Language: | English |
| Published: |
St. Paul, Minn. :
Minnesota Department of Transportation, Research Services & Library,
2015.
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| Series: | Final report (Minnesota. Department of Transportation) ;
2015-36. |
| Subjects: |
MARC
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| 100 | 1 | |a Tillmann, Anton S. | |
| 245 | 1 | 0 | |a Protocols and criteria for acoustic emission monitoring of fracture-critical steel bridges / |c prepared by Anton S. Tillmann, Arturo E. Schultz, Javier E. Campos. |
| 260 | |a St. Paul, Minn. : |b Minnesota Department of Transportation, Research Services & Library, |c 2015. | ||
| 300 | |a 164 pages in various pagings : |b color illustrations, charts ; |c 28 cm. | ||
| 490 | 1 | |a Final report ; |v 2015-36 | |
| 536 | |a Performed by University of Minnesota, Department of Civil, Environmental, and Geo-Engineering under contract no. |b 99008, work order 49 |f CTS project #2013016 | ||
| 500 | |a "June 2015." | ||
| 504 | |a Includes bibliographical references (page 95-96). | ||
| 520 | 3 | |a With bridge infrastructure in Minnesota aging, advancing techniques for ensuring bridge safety is a fundamental goal of the Minnesota Department of Transportation (MnDOT). Developing health monitoring systems for fracture-critical bridges is an essential objective in meeting the stated goal. This report documents the implementation of two, 16-sensor, acoustic emission monitoring systems in one of the tie girders of the Cedar Avenue Bridge, which is a fracture-critical tied arch bridge spanning the Minnesota River between Bloomington and Eagan, MN. The goal of the project is to develop a process for using acoustic emission technology to monitor one of the girders of the bridge while continuously collecting data from the monitoring systems. Given the cost of acoustic emission sensing equipment, an approach was adopted to space the sensors as widely as possible. Fracture tests were conducted on a specimen acoustically connected to the bridge to simulate fracture in a bridge member. Sets of criteria were developed to differentiate between acoustic emission data collected during fracture and ambient bridge (i.e. AE noise) data. The sets of criteria were applied to fracture test data and AE noise data to determine the validity of the criteria. For each criteria set, a period of Cedar Avenue Bridge monitoring data was analyzed. The results of the analysis of each period showed that the criteria could differentiate between the bridge AE noise data and the fracture test data. The AE noise data never met all of the criteria in the set, whereas all criteria were met during each of the applicable fracture tests. | |
| 530 | |a Also available online. | ||
| 599 | |a MN-RC-2015-36 |9 LOCAL | ||
| 650 | 0 | |a Iron and steel bridges |x Inspection |z Minnesota. | |
| 650 | 0 | |a Acoustic emission testing. | |
| 650 | 0 | |a Structural health monitoring. | |
| 650 | 0 | |a Iron and steel bridges |x Testing. | |
| 650 | 0 | |a Bridges |z Minnesota |x Maintenance and repair. | |
| 690 | |a Internet resource. |9 LOCAL | ||
| 700 | 1 | |a Schultz, Arturo E. | |
| 700 | 1 | |a Campos, Javier E. | |
| 710 | 1 | |a Minnesota. |b Department of Transportation. |b Research Services & Library. | |
| 710 | 2 | |a University of Minnesota. |b Department of Civil, Environmental and Geo- Engineering. | |
| 830 | 0 | |a Final report (Minnesota. Department of Transportation) ; |v 2015-36. | |
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