Automatic minimization of the rigidity eccentricity of 3D reinforced concrete buildings

Lagaros, ND; Papadrakakis, M; Bakas, N

dc.contributor.author	Lagaros, ND	en
dc.contributor.author	Papadrakakis, M	en
dc.contributor.author	Bakas, N	en
dc.date.accessioned	2014-03-01T01:23:39Z
dc.date.available	2014-03-01T01:23:39Z
dc.date.issued	2006	en
dc.identifier.issn	1363-2469	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17071
dc.subject	Earthquake resistance	en
dc.subject	Evolutionary structural optimisation	en
dc.subject	Torsionally balanced design	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Architectural restrictions	en
dc.subject.other	Evolutionary optimisation algorithms	en
dc.subject.other	Structure design codes	en
dc.subject.other	Tailored algorithm	en
dc.subject.other	Architectural design	en
dc.subject.other	Earthquake resistance	en
dc.subject.other	Optimization	en
dc.subject.other	Reinforced concrete	en
dc.subject.other	Rigidity	en
dc.subject.other	Structural design	en
dc.subject.other	Concrete construction	en
dc.title	Automatic minimization of the rigidity eccentricity of 3D reinforced concrete buildings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1142/S1363246906002840	en
heal.identifier.secondary	http://dx.doi.org/10.1142/S1363246906002840	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The objective of this paper is to obtain the optimum design of 3D reinforced concrete buildings in terms of their performance under earthquake loading. This goal is achieved by considering the minimisation of the eccentricity between the mass centre and the rigidity centre of each storey layout as the optimisation objective in order to produce torsionally balanced structures. This problem is considered as a combined topology and sizing optimisation problem. The location and the size of the columns and the shear walls of the structure of each storey layout constitute the design variables. Apart from the constraints imposed by the seismic and reinforced concrete structure design codes, architectural restrictions are also taken into account. The test examples showed that a reduction in the structural cost of the building is achieved by minimising the eccentricity between the mass centre and the rigidity centre of each storey layout. Evolutionary optimisation algorithms and in particular a specially tailored algorithm based on Evolution Strategies is implemented for the solution of this type of structural optimisation problems. © Imperial College Press.	en
heal.publisher	IMPERIAL COLLEGE PRESS	en
heal.journalName	Journal of Earthquake Engineering	en
dc.identifier.doi	10.1142/S1363246906002840	en
dc.identifier.isi	ISI:000239420100005	en
dc.identifier.volume	10	en
dc.identifier.issue	4	en
dc.identifier.spage	533	en
dc.identifier.epage	564	en