Incorporating uncertainty into bridge pier scour estimations

Peggy Ann Johnson, B. M. Ayyub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

»Pier scour» is the erosion of a streambed in the vicinity of bridge pier foundations and may eventually cause the bridge to become unstable. Fuzzy regression is used to develop a pier scour regression equation based on crisp laboratory data in which the regression coefficients are fuzzy parameters, thus producing fuzzy output. Field data is used to test the equations. The model provides a range of scour estimates for any given set of input data, each with an associated degree of belief. A number of drawbacks to this method are also presented.

Original languageEnglish (US)
Title of host publicationProceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages136-140
Number of pages5
ISBN (Electronic)0818638508, 9780818638503
DOIs
StatePublished - Jan 1 1993
Event2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993 - College Park, United States
Duration: Apr 25 1993Apr 28 1993

Publication series

NameProceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993

Conference

Conference2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993
CountryUnited States
CityCollege Park
Period4/25/934/28/93

Fingerprint

Bridge piers
Scour
Uncertainty
Fuzzy Regression
Fuzzy Parameters
Piers
Erosion
Regression Coefficient
Regression
Unstable
Output
Estimate
Range of data
Model

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Computational Mechanics
  • Safety, Risk, Reliability and Quality
  • Modeling and Simulation
  • Numerical Analysis
  • Statistics and Probability

Cite this

Johnson, P. A., & Ayyub, B. M. (1993). Incorporating uncertainty into bridge pier scour estimations. In Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993 (pp. 136-140). [366778] (Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISUMA.1993.366778
Johnson, Peggy Ann ; Ayyub, B. M. / Incorporating uncertainty into bridge pier scour estimations. Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993. Institute of Electrical and Electronics Engineers Inc., 1993. pp. 136-140 (Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993).
@inproceedings{57a440f772bb418e8893729b187b7622,
title = "Incorporating uncertainty into bridge pier scour estimations",
abstract = "»Pier scour» is the erosion of a streambed in the vicinity of bridge pier foundations and may eventually cause the bridge to become unstable. Fuzzy regression is used to develop a pier scour regression equation based on crisp laboratory data in which the regression coefficients are fuzzy parameters, thus producing fuzzy output. Field data is used to test the equations. The model provides a range of scour estimates for any given set of input data, each with an associated degree of belief. A number of drawbacks to this method are also presented.",
author = "Johnson, {Peggy Ann} and Ayyub, {B. M.}",
year = "1993",
month = "1",
day = "1",
doi = "10.1109/ISUMA.1993.366778",
language = "English (US)",
series = "Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "136--140",
booktitle = "Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993",
address = "United States",

}

Johnson, PA & Ayyub, BM 1993, Incorporating uncertainty into bridge pier scour estimations. in Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993., 366778, Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993, Institute of Electrical and Electronics Engineers Inc., pp. 136-140, 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993, College Park, United States, 4/25/93. https://doi.org/10.1109/ISUMA.1993.366778

Incorporating uncertainty into bridge pier scour estimations. / Johnson, Peggy Ann; Ayyub, B. M.

Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993. Institute of Electrical and Electronics Engineers Inc., 1993. p. 136-140 366778 (Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Incorporating uncertainty into bridge pier scour estimations

AU - Johnson, Peggy Ann

AU - Ayyub, B. M.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - »Pier scour» is the erosion of a streambed in the vicinity of bridge pier foundations and may eventually cause the bridge to become unstable. Fuzzy regression is used to develop a pier scour regression equation based on crisp laboratory data in which the regression coefficients are fuzzy parameters, thus producing fuzzy output. Field data is used to test the equations. The model provides a range of scour estimates for any given set of input data, each with an associated degree of belief. A number of drawbacks to this method are also presented.

AB - »Pier scour» is the erosion of a streambed in the vicinity of bridge pier foundations and may eventually cause the bridge to become unstable. Fuzzy regression is used to develop a pier scour regression equation based on crisp laboratory data in which the regression coefficients are fuzzy parameters, thus producing fuzzy output. Field data is used to test the equations. The model provides a range of scour estimates for any given set of input data, each with an associated degree of belief. A number of drawbacks to this method are also presented.

UR - http://www.scopus.com/inward/record.url?scp=85029995347&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85029995347&partnerID=8YFLogxK

U2 - 10.1109/ISUMA.1993.366778

DO - 10.1109/ISUMA.1993.366778

M3 - Conference contribution

AN - SCOPUS:85029995347

T3 - Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993

SP - 136

EP - 140

BT - Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Johnson PA, Ayyub BM. Incorporating uncertainty into bridge pier scour estimations. In Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993. Institute of Electrical and Electronics Engineers Inc. 1993. p. 136-140. 366778. (Proceedings - 2nd International Symposium on Uncertainty Modeling and Analysis, ISUMA 1993). https://doi.org/10.1109/ISUMA.1993.366778