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Helmicki A, Aktan A, Barrish R, Gao Y, Hunt V, Iyer S, Levi A

Interface design for pc-based real-time tele-remote operation of an instrumented bridge condition monitoring system

Abstract: For the past 4 years a multidisciplinary team of researchers at the University of Cincinnati Infrastructure Institute (UCII) has been studying the development of instrumented monitoring based condition assessment methods by making use of two fully operational reinforced concrete deck on steel stringer bridges in the Cincinnati, OH area. The instrumentation packages allow for the measurement of ambient conditions, as well as low frequency and high frequency components of structurally related signals. In addition, each bridge is equipped with a weigh-in-motion (WIM) scale which allows the weight and speed of all vehicles crossing the bridge to be monitored. All measurements are recorded by a PC- based data acquisition system. Both bridges are tele-remotely operable from laboratories at UCll via standard telephondmodem connections and custom designed software forming a user friendly data acquisition system interface. This paper reports on the current status of the research effort behind the development of the monitor and its associated user interface.

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Series: ecce:1997 (browse)
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Helmicki A, Aktan A, Hunt V, Wilson A

Documentation and data archival of civil infrastructure research using multimedia cd-rom

Abstract: The University of Cincinnati Infrastructure Institute (UCll) currently operates a decommissioned steel stringer bridge testbed site which is serving as the test specimen for researching and demonstrating condition assessment and structural damage detection concepts and tools. The research is designed around the iterative application of various damage scenarios followed by structural identification in order to determine the viability and sensitivity of various experimental approaches (including instrumented monitoring and modal testing) for use in objective condition assessment. This project constitutes a first of its kind attempt at the study of these methods applied under realistic damage conditions to an actual full-scale operating structure. As a result, the experimental data and results acquired during this research are potentially of great value members of the academic, government, and induslrial communities. Correspondingly, one of the goals of this research is the dissemination of results through the use of a CD-ROM multimedia database incorporating infomation in audio, video, photogrammetric, diagrammaticKADD, text, graphical, and raw numeric data formats. The goal of this effort is to effectively communicate to users all information about the project necessary to be able to make use of the experimental data and results obtained in an intelligent and informed manner. This paper describes various design and development issues connected with this database development effort.

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Full text: content.pdf ( bytes) (available to registered users only)

Series: ecce:1997 (browse)
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