TY - GEN
T1 - Prestress loss monitoring using long-gauge fiber optic sensors
AU - Abdel-Jaber, Hiba
AU - Glisic, Branko
N1 - Funding Information:
This work was partially supported by the National Science Foundation Grant No. CMMI-1434455 and CMMI-1362723. Any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the National Science Foundation. The work was also supported by USDOT Office of the Assistant Secretary for Research and Technology Grant No. DTRT13-G-UTC28. The views, opinions, findings and conclusions are the responsibility of the authors only and do not represent the official policy or position of the USDOT or any state or entity. The authors would like to thank Professor Werner Lienhart of Graz University of Technology, Austria for his insights and correspondence on the modeling of the dependence of concrete temperature on ambient temperature. The Streicker Bridge project has been realized with the great help and kind collaboration of several professionals and companies. We would like to thank Steve Hancock and Turner Construction Company; Ryan Woodward and Ted Zoli, HNTB Corporation; Dong Lee and A G Construction Corporation; Steven Mancini and Timothy R Wintermute, Vollers Excavating and Construction, Inc.; SMARTEC SA, Switzerland; Micron Optics, Inc., Atlanta, GA; Geoffrey Gettelfinger; James P Wallace; Miles Hersey; Prof. Paul Prucnal; Yanhua Deng; and faculty and staff of the Department of Civil and Environmental Engineering. Special thanks to Dorotea Sigurdardottir for the permission to use her drawings, and to Prof. Matthew Yarnold (Tennessee Technological University) and Jack Reilly for the information regarding work on temperature-driven SHM.
Publisher Copyright:
© 2018 Ingenta.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017
Y1 - 2017
N2 - Prestressed concrete is an important building material due to its economy and superior performance compared to reinforced concrete. Given the current attention to infrastructure monitoring and condition assessment, creating methods for monitoring prestressed concrete specifically is increasingly important. Assessment of prestress losses in the field, an important parameter in prestressed concrete, is required in order to ensure safety, and allow designers to better understand the evolution of losses particularly as they pertain to new concrete mixes. This paper presents a method for the monitoring prestress losses using strain measurements collected from sensors embedded in the concrete. The method is applied to measurements from Streicker Bridge, a prestressed concrete bridge on the Princeton University campus. The method shows promising results and can be used for monitoring more complex beam-like structures.
AB - Prestressed concrete is an important building material due to its economy and superior performance compared to reinforced concrete. Given the current attention to infrastructure monitoring and condition assessment, creating methods for monitoring prestressed concrete specifically is increasingly important. Assessment of prestress losses in the field, an important parameter in prestressed concrete, is required in order to ensure safety, and allow designers to better understand the evolution of losses particularly as they pertain to new concrete mixes. This paper presents a method for the monitoring prestress losses using strain measurements collected from sensors embedded in the concrete. The method is applied to measurements from Streicker Bridge, a prestressed concrete bridge on the Princeton University campus. The method shows promising results and can be used for monitoring more complex beam-like structures.
KW - Fiber optic sensors
KW - Post-tensioning
KW - Prestress loss
KW - Prestressed concrete
KW - Structural health monitoring
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M3 - Conference contribution
AN - SCOPUS:85020490773
T3 - IABSE Conference, Vancouver 2017: Engineering the Future - Report
SP - 1494
EP - 1498
BT - IABSE Conference, Vancouver 2017
PB - International Association for Bridge and Structural Engineering (IABSE)
T2 - 39th IABSE Symposium in Vancouver 2017: Engineering the Future
Y2 - 21 September 2017 through 23 September 2017
ER -