Seismic performance of RC frames designed for three different ductility levels

Lu, Y; Hao, H; Carydis, PG; Mouzakis, H

dc.contributor.author	Lu, Y	en
dc.contributor.author	Hao, H	en
dc.contributor.author	Carydis, PG	en
dc.contributor.author	Mouzakis, H	en
dc.date.accessioned	2014-03-01T01:17:05Z
dc.date.available	2014-03-01T01:17:05Z
dc.date.issued	2001	en
dc.identifier.issn	0141-0296	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14347
dc.subject	Ductile design	en
dc.subject	Hysteretic behaviour	en
dc.subject	Seismic force reduction	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	ductility	en
dc.subject.other	hysteresis	en
dc.subject.other	reinforced concrete	en
dc.subject.other	seismic response	en
dc.title	Seismic performance of RC frames designed for three different ductility levels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0141-0296(00)00058-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0141-0296(00)00058-4	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	The concept of ""making structures ductile"" has prevailed in modern earthquake-resistant building design. In this context, questions remain regarding the selection of adequate ductility levels and the corresponding seismic force reduction factor q for a specific class of structures, whereas the detailing requirements to ensure the desired ductility continue to be refined. In the current investigation, three simple frames were designed for different ductility levels according to EC8 [Eurocode 8: Design provisions for earthquake resistance of structures. CEN (European Commission for Standardisation)/TC250/SC8, 1994] and their actual performance when subjected to earthquake simulation tests are observed and compared. Results indicate that under the ""ductility for seismic force reduction"" trade-off scheme, the frame designed for high ductility (thus large q factor) tends to attract more extensive damage due to large yield excursion, resulting in certain performance reduction. Insufficient confinement could lead to degrade hysteretic behaviour in a rather sensitive manner. Satisfactory performance was observed in the frame designed for medium ductility where both the seismic force reduction factor and the overall ductility were in the order of 3-4. In general, the overall and local ductility demands and the q-factors were observed to correlate in a rather predictable manner. © 2001 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Engineering Structures	en
dc.identifier.doi	10.1016/S0141-0296(00)00058-4	en
dc.identifier.isi	ISI:000166620200011	en
dc.identifier.volume	23	en
dc.identifier.issue	5	en
dc.identifier.spage	537	en
dc.identifier.epage	547	en