Multiple Reference Impact Testing for Bridge Assessment with Drop Hammer

Yu Juan Liao; Yun Zhou; Peng Qin

doi:10.4028/www.scientific.net/AMR.605-607.718

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607Multiple Reference Impact Testing for Bridge...

Multiple Reference Impact Testing for Bridge Assessment with Drop Hammer

Abstract:

A new drop hammer was designed and used for multiple reference impact testing of two bridges. The drop hammer utilizes a multiple-rebound control system for successfully applying a single impact with repeatable high-level force for bridge testing. Signal analysis results indicate that the drop hammer provides a higher signal-noise ratio and a better coherence even when the response signals are subject to pollution due to traffic on the bridge. Modal flexibility was computed by using the impact data from the drop hammer, and meaningful deflected shapes could be generated demonstrating the potential of the envisioned structural assessment system.

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Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

718-723

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.718

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Online since:

December 2012

Authors:

Yu Juan Liao, Yun Zhou, Peng Qin

Keywords:

Global Structural Assessment, Modal Flexibility, Multiple Reference Impact Test, Structural Identification

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References

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