In-Depth Investigation of Seismic Vulnerability of an Aging River Bridge Exposed to Scour
Publication: Journal of Performance of Constructed Facilities
Volume 31, Issue 5
Abstract
The stability and structural performance of aged structures under extreme events are rarely investigated. The severe deterioration in current condition of aged bridges can trigger premature failures under regular floods or even mild earthquakes. A reliable bridge inspection program is required for condition assessment. Currently, Turkey, a seismically active country, does not have a regular bridge inspection program or management systems. This deficiency was highlighted by the collapse of the Caycuma Bridge in 2012, killing 15 people during a regular flood event. The main contribution of this paper is to identify the need for in-depth investigation of aging bridges by integration of bridge inspection data with bridge seismic fragility curves and to address the seismic vulnerability of these bridges with a high level of scour. In this scope, one of the inspected bridges has been selected to determine the loss of seismic load resistance attributable to floods. The investigation has included use of newly developed bridge fragility curves for Turkey and advanced nonlinear analysis.
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Acknowledgments
The authors thank KGM (General Directorate of Turkish Highways) for providing the bridge data.
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Information & Authors
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Published In
Journal of Performance of Constructed Facilities
Volume 31 • Issue 5 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Mar 12, 2016
Accepted: Dec 20, 2016
Published online: Mar 17, 2017
Discussion open until: Aug 17, 2017
Published in print: Oct 1, 2017
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