Verification of the Framework for Risk-Based Bridge Inspection
Publication: Journal of Bridge Engineering
Volume 21, Issue 4
Abstract
This paper presents two case studies that were conducted to evaluate the effectiveness of a new, risk-based inspection (RBI) method. The overall objectives of the case studies were to demonstrate the implementation of the methodology and to verify the effectiveness of RBI analysis for determining suitable inspection intervals for highway bridges. Expert elicitations were conducted to develop risk-based data models for RBI analysis for two families of bridges. These data models were used to assign inspection intervals for bridges ranging from 12 to 72 months. A new backcasting method was developed and used to analyze the effectiveness of these data models for identifying suitable inspection intervals. The results of the backcasting procedures verified that the RBI approach determined suitable inspection intervals for the sample bridges assessed through the research.
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Acknowledgments
This paper provides an overview of work completed under NCHRP 12-82, “Developing Reliability-Based Bridge Inspection Practices.” This investigation was sponsored by the Transportation Research Board (TRB) under the NCHRP program. Data reported are a work in progress. The contents of this paper have not been reviewed by the project panel or NCHRP, nor do they constitute a standard, specification, or regulation. The opinions and conclusions expressed or implied are those of the research agency that performed the research and are not necessarily those of the TRB or its sponsors. This paper has not been reviewed or accepted by the TRB's Executive Committee or the Governing Board of the National Research Council. The research team gratefully acknowledges the helpful insights and comments provided by the project panel during the course of the research. The research team would also like to acknowledge the assistance provided by the Texas and Oregon Departments of Transportation during the execution of the case study portions of the research. The authors would also like to acknowledge the assistance provided by Mr. Keith Ramsey and the Texas Department of Transportation and Mr. Bruce Johnson and the Oregon Department of Transportation during the execution of the case study portions of the research.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 21 • Issue 4 • April 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 24, 2014
Accepted: Feb 5, 2015
Published online: Jan 4, 2016
Published in print: Apr 1, 2016
Discussion open until: Jun 4, 2016
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