Dynamic Testing and Long Term Monitoring of a Twelve Span Viaduct

Abstract:

Because of the critical importance of bridges in land transport networks and broader economy, an increasing interest in permanent observation of their dynamic behavior under traffic, seismic and other live loads has been observed during the past decade. In addition, recent technological advances have made the installation and operation of permanent dynamic monitoring systems much more practical and economical. A multi-channel dynamic monitoring system is being installed in the 12 span pre-cast, post-tensioned Newmarket Viaduct, recently built using the balanced cantilever method and situated in Auckland, New Zealand. This paper first describes the preliminary studies including extensive one-off ambient vibration tests using wireless sensors that provided important information for the design of the monitoring system shortly after construction of the bridge. Then the designed monitoring system is characterized and proposed research that will be undertaken using the monitoring data is outlined.

• Periodical: Key Engineering Materials (Volumes 569-570)
• Pages: 342-349
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.569-570.342
• Online since: July 2013
• Authors: Xing Hua Chen, Piotr Omenzetter, Sherif Beskhyroun
• Keywords: Ambient Vibration Testing, Bridge, Dynamic Monitoring, System Identification

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