A time-dependent reliability prediction of deteriorating spun concrete bridge piers

Abstract

The conceptions of the time-dependent reliability analysis of non-deteriorating and deteriorating spun concrete bridge piers, which are effected by permanent and transient loads, are discussed. There are analysed the first- and the second-order load effects of bracing bridge piers. The strength features of resisting bending moments used in ultimate limit state and probability-based designs are presented. A simplified analysis of non-deteriorating and deteriorating bracing spun concrete piers in persistent situations in limit state and probabilistic approaches is provided. The prediction of probability-based reliability on shafts of non-deteriorating and deteriorating bracing bridge piers is illustrated by numerical example.

Keywords:

• bridge piers
• deterioration
• safety margin
• reliability index

Acknowledgments

The second author is grateful to the Research Council of Lithuania for the Postdoctoral fellowship. Postdoctoral fellowship is being funded by the European Union Structural Funds project “Postdoctoral Fellowship Implementation in Lithuania”.