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Title:

Research Pays Off: Improved Predictions of Pier Scour Save Bridge Resources: Florida Develops and Applies Findings
Cover of Research Pays Off: Improved Predictions of Pier Scour Save Bridge Resources: Florida Develops and Applies Findings

Accession Number:

01332836

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/issn/07386826

Abstract:

Pier foundations disrupt water flow causing scour and requiring that bridge foundations be designed to withstand the effects of scour for 100 years of flow. Accurate predictions of scour depths are essential for a bridge to withstand conditions throughout its lifetime. If underestimated the bridge may fail; if overestimated the cost of construction is increased. The most important parameters related to structure, water flow, and sediment, as well as several dimensionless parameters, affecting pier scour depths have been identified. Determining the parameters that have the greatest impact and their interactions, however, has proved difficult. This article discusses the refining of the predictive equations and their adjustment for complex piers, and the adoption of these newly developed pier scour equations as part of the Florida Department of Transportation design procedures. In the past five years, Florida taxpayers have saved millions of dollars through the application of the new pier scour equations to bridge designs and to the reclassification of bridges previously considered high risk to low risk.

Supplemental Notes:

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Language:

English

Authors:

Renna, Rick
Morrison, Vicki

Pagination:

pp 36-37

Publication Date:

2011-1

Serial:

TR News

Issue Number: 272
Publisher: Transportation Research Board
ISSN: 0738-6826

Media Type:

Print

Features:

Photos (3) ; References (4)

Subject Areas:

Bridges and other structures; Design; Highways; Hydraulics and Hydrology; I24: Design of Bridges and Retaining Walls

Files:

TRIS, TRB

Created Date:

Mar 18 2011 3:28PM

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