Show simple item record

dc.contributor.authorO'Brien, P.
dc.contributor.authorEatherton, M. R.
dc.contributor.authorEasterling, W. S.
dc.date.accessioned2017-07-05T15:02:34Z
dc.date.available2017-07-05T15:02:34Z
dc.date.issued2017-06
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/40633
dc.description.abstractRecent research has identified that current code level seismic demands used for diaphragm design are considerably lower than demands in real structures during a seismic event. However, historical data has shown that steel deck diaphragms, common to steel framed buildings, perform exceptionally well during earthquake events. A new alternative diaphragm design procedure in ASCE 7-16 increases diaphragm seismic demand to better represent expected demands. The resulting elastic design forces from this method are reduced by a diaphragm design force reduction factor, Rs, to account for the ductility of the diaphragm system. Currently, there exist no provisions for Rs factors for steel deck diaphragms. This research was therefore initiated to understand inelastic steel deck diaphragm behavior and calculate Rs factors. A review of the literature showed that a large number of experimental programs have been performed to obtain the in-plane load-deformation behavior of steel deck diaphragms. To unify review of these diaphragm tests and their relevant results, a database of over 750 tested specimens was created. A subset of 108 specimens with post-peak, inelastic behavior was identified for the characterization of diaphragm behavior and ductility. A new recommended method for predicting shear strength and stiffness for steel deck diaphragms with structural concrete fill is proposed along with an appropriate resistance factor. Diaphragm system level ductility and overstrength are estimated based on subassemblage test results and Rs factors are then calculated based on these parameters. The effects of certain variables such as deck thickness and fastener spacing on diaphragm ductility are explored.en_US
dc.description.sponsorshipAmerican Institute of Steel Construction (AISC), American Iron and Steel Institute (AISI), Steel Deck Institute (SDI), Steel Joist Institute (SJI), Metal Building Manufacturers Association (MBMA), National Science Foundation (NSF)en_US
dc.language.isoen_USen_US
dc.relation.ispartofseriesCFSRC;R-2017-02
dc.subjectCold-formed steelen_US
dc.subjectprofiled steel decken_US
dc.subjectdiaphragmen_US
dc.subjectcantilever testen_US
dc.subjectshearen_US
dc.titleCharacterizing the load-deformation behavior of steel deck diaphragms using past test dataen_US
dc.typeTechnical Reporten_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record