ABSTRACT

Abstract Thispaperdescribesthefirstsevenyearsofastudytomonitortheperformanceoftwo precastsegmentalconcreteviaducts,situatedontheoutskirtsofCardiff,throughouttheir servicelife.Theopportunitytomonitorthesestructuresprovidesavaluablemethodby whichwecanextendourunderstandingoftheirbehaviour.Basedonthedataobtained todate,thisconditionmonitoringtechniqueisdiscussed,andaprogrammeoffuture monitoringisproposed.Theaimoftheseproposalsistoprovidedetailedinformationat areasonablecostandinaformwhichcanbereadilyobtainedbythemaintaining authority. Keywords:Precastbridges,segmentalbridges,concretebridges,condition monitoring.