A targeted nonlinear dynamic procedure to evaluate the seismic performance of structures

Vamvatsikos, D; Aschheim, M; Comartin, CD

dc.contributor.author	Vamvatsikos, D	en
dc.contributor.author	Aschheim, M	en
dc.contributor.author	Comartin, CD	en
dc.date.accessioned	2014-03-01T02:52:51Z
dc.date.available	2014-03-01T02:52:51Z
dc.date.issued	2011	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36110
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-80054809752&partnerID=40&md5=5a4d6b605e8b8e5b6b2b6bc8503a00f4	en
dc.subject	Demand and capacity factored design	en
dc.subject	Nonlinear dynamic analysis	en
dc.subject	Perfor-mance assessment	en
dc.subject	Performance-based earthquake engineering	en
dc.subject	Uncertainty	en
dc.subject.other	Demand and capacity factored design	en
dc.subject.other	Non-linear dynamic analysis	en
dc.subject.other	Perfor-mance assessment	en
dc.subject.other	Performance-based earthquake engineering	en
dc.subject.other	Uncertainty	en
dc.subject.other	Civil engineering	en
dc.subject.other	Computational methods	en
dc.subject.other	Dynamic analysis	en
dc.subject.other	Earthquake resistance	en
dc.subject.other	Earthquakes	en
dc.subject.other	Engineering geology	en
dc.subject.other	Reinforced concrete	en
dc.subject.other	Safety factor	en
dc.subject.other	Seismic design	en
dc.subject.other	Seismic waves	en
dc.subject.other	Structural analysis	en
dc.subject.other	Structural dynamics	en
dc.subject.other	Uncertainty analysis	en
dc.subject.other	Nonlinear analysis	en
dc.title	A targeted nonlinear dynamic procedure to evaluate the seismic performance of structures	en
heal.type	conferenceItem	en
heal.publicationDate	2011	en
heal.abstract	The Targeted Nonlinear Dynamic Procedure is introduced to offer a practical evaluation of the seismic performance of structures. Building upon the SAC/FEMA closed-form probabilistic framework it can incorporate all important sources of variability and can be calibrated for conservatism. The hazard curve is combined with the nonlinear dynamic analysis performed for each limit-state using one or two levels of the intensity measure. This is either the elastic first-mode spectral acceleration or the more sufficient inelastic spectral displacement. From the suite of ground motion records only ""targeted"" subsets are used that are optimally selected to estimate the median and dispersion of the structural response. The simple factored demand and capacity checking format employed allows for a seamless integration with current engineering practice, while rational safety factors add the required degree of conservatism to account for epistemic uncertainties both for ductile and brittle modes of failure. Using a four-story reinforced concrete frame as an example, the proposed approach is shown to provide a relatively simple means to account for important sources of variability in nonlinear response history analysis. It offers powerful analysis options to a knowledgeable user in a format that can be upgraded incrementally and can provide an excellent introduction to sophisticated analysis techniques with more precisely controlled levels of conservatism.	en
heal.journalName	ECCOMAS Thematic Conference - COMPDYN 2011: 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering: An IACM Special Interest Conference, Programme	en