Dynamic Identification of a Concrete Bridge with Orthotropic Plate-Type Deck
Publication: Journal of Structural Engineering
Volume 136, Issue 5
Abstract
This paper continues a line of research aimed at the development of a dynamically based health condition monitoring of bridge structures in the area of Friuli Venezia Giulia, Italy. One subject of this research program has been a two-span highway bridge with a concrete slab supported by closely spaced precast beams, a constructive typology which is quite diffuse in the regional highway network. Forced-vibration tests and experimental modal analysis were used to determine the vibration properties of the structure. An identification procedure based on dynamic data allowed to define an accurate orthotropic plate model of the deck and to improve the description of some constructional details in the finite-element model of the bridge such as the boundary conditions on abutments and the connection between the deck and pier. The usefulness of the combined experimental and analytical process in the identification of structural properties has been proven and the procedure can be applied to other structures of the same typology.
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Acknowledgments
The writers gratefully acknowledge the cooperation of Dr. Flavio Drigani and Dr. Marino Donada (Autovie Venete S.p.A.) and Dr. Paolo Panzeri (P&P Consulting Engineers, Bergamo, Italy). Support for the experimental part of the research program was provided by the company Autovie Venete S.p.A.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 136 • Issue 5 • May 2010
Pages: 586 - 602
Copyright
© 2010 ASCE.
History
Received: Nov 8, 2008
Accepted: Nov 2, 2009
Published online: Apr 15, 2010
Published in print: May 2010
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