Advancing bridge-pier scour engineering

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Civil engineers are currently faced with the design, monitoring, and maintenance of bridge piers where local scour is a concern. Current equations and models for predicting pier scour provide a single maximum value for scour depth, rather than scour depth as a function of time. Therefore, the number of years required to reach that depth cannot be estimated, and, as such, the models do not suggest the safe design life. In this paper, the primary problems currently associated with pier-scour engineering are discussed, and direction for investigating these problems is provided. Existing bridges in scour-prone areas need to be evaluated for vulnerability to scour. A temporal model for estimating scour depth around bridge piers, combined with quantitative risk analysis, could be used to determine whether scour-prevention measures are necessary. The time-dependent model and subsequent risk of failure analysis will also enable the design engineer to base a bridge-pier design on an estimated probability of failure rather than experience or judgment only, thus providing a method for the safer design of bridges.

Original languageEnglish (US)
Pages (from-to)48-55
Number of pages8
JournalJournal of Professional Issues in Engineering Education and Practice
Volume117
Issue number1
DOIs
StatePublished - Jan 1991

Fingerprint

Bridge piers
Scour
Piers
Engineers
Risk analysis
Failure analysis
Monitoring

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Industrial relations
  • Strategy and Management

Cite this

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abstract = "Civil engineers are currently faced with the design, monitoring, and maintenance of bridge piers where local scour is a concern. Current equations and models for predicting pier scour provide a single maximum value for scour depth, rather than scour depth as a function of time. Therefore, the number of years required to reach that depth cannot be estimated, and, as such, the models do not suggest the safe design life. In this paper, the primary problems currently associated with pier-scour engineering are discussed, and direction for investigating these problems is provided. Existing bridges in scour-prone areas need to be evaluated for vulnerability to scour. A temporal model for estimating scour depth around bridge piers, combined with quantitative risk analysis, could be used to determine whether scour-prevention measures are necessary. The time-dependent model and subsequent risk of failure analysis will also enable the design engineer to base a bridge-pier design on an estimated probability of failure rather than experience or judgment only, thus providing a method for the safer design of bridges.",
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Advancing bridge-pier scour engineering. / Johnson, Peggy A.

In: Journal of Professional Issues in Engineering Education and Practice, Vol. 117, No. 1, 01.1991, p. 48-55.

Research output: Contribution to journalArticle

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