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Título del libro: Iabse Congress, Ghent 2021: Structural Engineering For Future Societal Needs
Título del capítulo: Reliability of bridges considering the effect of local scour

Autores UNAM:
ROBERTO GOMEZ MARTINEZ; JOSE ALBERTO ESCOBAR SANCHEZ;
Autores externos:

Idioma:

Año de publicación:
2021
Palabras clave:

Bridges; Deterioration; Exponential functions; Reliability analysis; Stochastic systems; Structural design; Ageing infrastructures; Bridge engineering; Bridge foundation; Deterioration process; Engineering practices; Independent variables; Local scour; Reliability-based; Stochastic analysis; Time dependent; Scour


Resumen:

Aging infrastructure is becoming a major concern in the engineering practice, thus, there is a need for the development of a suitable reliability-based analysis of aging bridges subjected to scour hazard. This paper proposes such analysis based in a time dependent stationary deterioration process for the scour demand and a random independent variable for the bridge foundation capacity. Reliability is computed using direct integration for discrete times. Based on the results, an exponential function is proposed to estimate the decrease in reliability due to the accumulation of scour around a bridge pier through time. © 2021 IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. All rights reserved.


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