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Title:

PROBABILISTIC APPROACH TO LOCAL BRIDGE PIER SCOUR

Accession Number:

00625184

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309052149

Abstract:

A method is presented for evaluating the risk of failure of bridge structures due to pier scour during flood events. The method takes into account the hydrodynamics of the flow field in the vicinity of the pier. A newly developed entropy-based velocity distribution is used to define the effective depth of the scour-producing activity in the vortex near the pier. This velocity distribution is integrated to obtain an upper bound on the energy in the vortex, which is then used to estimate the local pier scour. The scour-estimation procedure is used with a flood probability distribution to assign an exceedance probability to estimated scour values. This scour probability distribution can be used along with information about the pier parameters to assign a risk of failure corresponding to any discharge value. The procedure allows for the development of a system of risk assessment priorities to aid in scheduling bridge monitoring and repair.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1350, Hydrology and Bridge Scour. 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

Monograph Title:

Hydrology and bridge scour

Monograph Accession #:

01404974

Language:

English

Authors:

Barbe, Donald E
Cruise, James F
Singh, Vijay P

Pagination:

p. 28-33

Publication Date:

1992

Serial:

Transportation Research Record

Issue Number: 1350
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309052149

Features:

Figures (4) ; References (22) ; Tables (2)

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Data and Information Technology; Highways; Hydraulics and Hydrology; Maintenance and Preservation; Safety and Human Factors; I26: Water Run-off - Freeze-thaw

Files:

TRIS, TRB, ATRI

Created Date:

Oct 23 1993 12:00AM

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