TY - CONF
T1 - In-service monitoring of US202/NJ23 highway overpass
T2 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2015
AU - Sigurdardottir, D. H.
AU - Flanigan, K.
AU - Glisic, B.
N1 - Funding Information:
This research is in part supported by SMARTEC SA, Switzerland, the Leifur Eiriksson Foundation, the USDOT-RITA UTC Program, grant No. DTRT12-G-UTC16, enabled through the Center for Advanced Infrastructure and Transportation (CAIT) at Rutgers University, and the National Science Foundation under Grant No. CMMI-1362723. The project is supported by the International Bridge Study (IBS) within in the Long-Term Bridge Performance (LTBP) Program put forth by the Federal Highway Administration (FHWA) in the United States. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the Leifur Eiriksson Foundation, USDOT-RITA, FHWA, or the National Science Foundation. The project on the US202/NJ23 highway overpass in Wayne has been realized with the important support, great help and kind collaboration of several professionals and companies. We would like to thank: Drexel University, in particular Professor Emin Aktan, Professor Frank Moon, and graduate student Jeff Weidner; New Jersey Department of Transportation (NJDOT), in particular Mr. Eddy Germain; PB Americas, Inc., Lawrenceville, NJ, in particular Mr. Michael S Morales, LTBP Site Coordinator; Rutgers University, in particular Professors Ali Maher and Nenad Gucunski; All IBS partners; and Kevin the lift operator. We would also like to thank Yao Yao who helped with the sensor installation, Joseph Vocaturo for his design and creation of sensor mounting equipment, and all students of Princeton University who particpated in monitoring sessions.
Publisher Copyright:
© 2015, International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII. All rights reserved.
PY - 2015
Y1 - 2015
N2 - The US202/NJ23 highway overpass is located close to Wayne, New Jersey, USA. The structure is composed of two separate northbound and southbound bridges. Steel girders support a concrete deck in several simple spans. The girders are built-up sections with varying flange thickness. Structurally and functionally, the US202/NJ23 overpass is a good example of a typical bridge frequently found across the USA. Therefore it provides an excellent opportunity to test performance of Structural Health Monitoring (SHM) applied on typical structures. Varying cross-sections and varying girder lengths, along with several perpendicular diaphragms create a complex structure, and SHM facilitates assessment of its structural behavior. The bridge is included in the FHWA's Long-Term Bridge Performance Program. An SHM system based on long-gauge Fiber Bragg-grating sensors was installed in June 2011. Since then 23 visits have been made to the bridge and short-term dynamic data were collected. In this paper a four-year overview of this monitoring project is presented including installation of the SHM system, evaluation of neutral axis as damage sensitive feature, evaluation of natural frequencies and damping from strain measurements, construction of curvature and moment diagrams, and temperature analysis. Unusual behavior was detected at one location through analysis of the neutral axis location.
AB - The US202/NJ23 highway overpass is located close to Wayne, New Jersey, USA. The structure is composed of two separate northbound and southbound bridges. Steel girders support a concrete deck in several simple spans. The girders are built-up sections with varying flange thickness. Structurally and functionally, the US202/NJ23 overpass is a good example of a typical bridge frequently found across the USA. Therefore it provides an excellent opportunity to test performance of Structural Health Monitoring (SHM) applied on typical structures. Varying cross-sections and varying girder lengths, along with several perpendicular diaphragms create a complex structure, and SHM facilitates assessment of its structural behavior. The bridge is included in the FHWA's Long-Term Bridge Performance Program. An SHM system based on long-gauge Fiber Bragg-grating sensors was installed in June 2011. Since then 23 visits have been made to the bridge and short-term dynamic data were collected. In this paper a four-year overview of this monitoring project is presented including installation of the SHM system, evaluation of neutral axis as damage sensitive feature, evaluation of natural frequencies and damping from strain measurements, construction of curvature and moment diagrams, and temperature analysis. Unusual behavior was detected at one location through analysis of the neutral axis location.
UR - http://www.scopus.com/inward/record.url?scp=84978648900&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84978648900&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:84978648900
Y2 - 1 July 2015 through 3 July 2015
ER -