Performance-based optimum seismic design of reinforced concrete structures

Fragiadakis, M; Papadrakakis, M

dc.contributor.author	Fragiadakis, M	en
dc.contributor.author	Papadrakakis, M	en
dc.date.accessioned	2014-03-01T01:28:59Z
dc.date.available	2014-03-01T01:28:59Z
dc.date.issued	2008	en
dc.identifier.issn	0098-8847	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19066
dc.subject	Evolution strategies	en
dc.subject	Mean annual frequency	en
dc.subject	Reinforced concrete	en
dc.subject	Reliability-based optimization	en
dc.subject	Response history analysis	en
dc.subject	Structural optimization	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Engineering, Geological	en
dc.subject.other	Earthquake resistance	en
dc.subject.other	Seismic design	en
dc.subject.other	Seismic response	en
dc.subject.other	Structural optimization	en
dc.subject.other	Mean annual frequency	en
dc.subject.other	Reliability-based optimization	en
dc.subject.other	Response history analysis	en
dc.subject.other	Reinforced concrete	en
dc.subject.other	algorithm	en
dc.subject.other	loading	en
dc.subject.other	optimization	en
dc.subject.other	performance assessment	en
dc.subject.other	reinforced concrete	en
dc.subject.other	response analysis	en
dc.subject.other	seismic design	en
dc.subject.other	structural response	en
dc.title	Performance-based optimum seismic design of reinforced concrete structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/eqe.786	en
heal.identifier.secondary	http://dx.doi.org/10.1002/eqe.786	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	A fully automated design methodology based on nonlinear response history analysis is proposed for the optimum seismic design of reinforced concrete (RC) structures. The conventional trial-and-error process is replaced by a structural optimization algorithm that serves as a search engine capable of locating the most efficient design in terms of cost and performance. Two variations of the proposed design methodology are introduced. The first approach treats the optimum design problem in a deterministic manner, while in the second variation the optimum design is sought in the framework of a reliability-based optimization problem. The reliability-based approach seems to be a more rational procedure since more meaningful design criteria that correlate better with the performance-based design concept can be adopted. Thus, the practice of using the mean annual frequency of a limit-state being exceeded to assess the candidate designs is compared with the use of deterministic criteria. Both formulations take into consideration the structural response for a number of limit-states, from serviceability to collapse prevention. The proposed design procedure is specifically tailored to the design of RC structures, where a preliminary design step of generating tables of concrete sections is introduced. In order to handle the large size of the tables, the concept of multi-database cascade optimization is implemented. The final design has to comply with the provisions of European design codes. The proposed methodology allows for a significant reduction of the direct construction cost combined with improved control of the seismic performance under earthquake loading. Copyright (C) 2008 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	Earthquake Engineering and Structural Dynamics	en
dc.identifier.doi	10.1002/eqe.786	en
dc.identifier.isi	ISI:000255430600001	en
dc.identifier.volume	37	en
dc.identifier.issue	6	en
dc.identifier.spage	825	en
dc.identifier.epage	844	en