ABSTRACT
Abstract AprogrammeofresearchinvolvingtheBuildingResearchEstablishmentandthe UniversityofSheffieldiscurrentlyinvestigatingthemoment-rotationrelationshipsof steelbeam-to-columnconnectionsatelevatedtemperatures.Moment-rotation relationshipshavebeenmeasuredforaflushend-plateconnection,bothasbaresteeland ascompositewithaconcreteslabacrossarangeoftemperatures.Initialrecommendations arepresentedforthedegradationofambienttemperatureconnectioncharacteristicsbased ontheobservationsofthisfirstseriesoftests.Thedevelopedmoment-rotation characteristicshavebeenusedinanexistingcomputermodel,comparingresultswith thosegivenbycommonlyadoptedapproximationsofconnectionresponseofthe CardingtonLargeBuildingTestFacility. Keywords:beam-columnconnections,steelframes,fireengineering,flushendplate connections,compositeconnections.
