Dynamic Reliability in Bridge Pier Scouring

Date

2002-09-01

Author

Yanmaz, Ali Melih

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Many bridges crossing wide rivers fail due to excessive local scour around piers and abutments during heavy floods. Because of the random nature and complexity of the overall scouring phenomenon through the bridge opening, there exist uncertainties leading to an unavoidable risk in bridge foundation design. A reliability-based assessment of bridge pier scour is required to examine the relationship between safety factors and reliability, which are key parameters for decision making in design. Herein, a dynamic reliability model based on resistance-loading methodology with random independent loading following a Poisson process and random fixed resistance is applied to assess the reliability of local scouring around single cylindrical piers under various combinations of decision variables. Variation of reliability with respect to safety factor, service life, return period and pier size is examined in an integrated manner in a practical application. The results of dynamic reliability are also compared with the findings of the static reliability model.

Subject Keywords

Bridge pier, Dynamic reliability, Return period, Safety factor, Scour, Service life

URI

https://hdl.handle.net/11511/84066
http://eds.b.ebscohost.com/eds/pdfviewer/pdfviewer?vid=1&sid=71935566-18a8-4fc0-adb0-d5554adf0084%40pdc-v-sessmgr02

Journal

Turkish Journal of Engineering and Environmental Sciences

Collections

Department of Civil Engineering, Article

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Local scour characteristics around semi-circular end bridge abutments with and without collars Tekin, Fatime; Köken, Mete; Department of Civil Engineering (2012) The major damage to bridges occurs due to scour of the bed materials around piers and abutments during severe floods. This study involves the experimental investigations of the various scour patterns forming around abutment models tested with and without collars as scour countermeasures. The experiments were conducted in a rectangular channel under clear-water scour conditions. In the first part of this study, 34 experiments were conducted with semi-circular end abutment models with and without a collar for...

Citation Formats

A. M. Yanmaz, “Dynamic Reliability in Bridge Pier Scouring,” Turkish Journal of Engineering and Environmental Sciences, pp. 367–375, 2002, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84066.