Comparative analysis of strut-and-tie models using Smooth Evolutionary Structural Optimization

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAlmeida, Valério S.
dc.creatorSimonetti, Hélio Luiz
dc.creatorOliveira Neto, Luttgardes de
dc.date2014-05-27T11:30:52Z
dc.date2016-10-25T18:55:04Z
dc.date2014-05-27T11:30:52Z
dc.date2016-10-25T18:55:04Z
dc.date2013-11-01
dc.date.accessioned2017-04-06T02:42:11Z
dc.date.available2017-04-06T02:42:11Z
dc.identifierEngineering Structures, v. 56, p. 1665-1675.
dc.identifier0141-0296
dc.identifierhttp://hdl.handle.net/11449/76892
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76892
dc.identifier10.1016/j.engstruct.2013.07.007
dc.identifierWOS:000329959600137
dc.identifier2-s2.0-84883535392
dc.identifierhttp://dx.doi.org/10.1016/j.engstruct.2013.07.007
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/897573
dc.descriptionThe strut-and-tie models are widely used in certain types of structural elements in reinforced concrete and in regions with complexity of the stress state, called regions D, where the distribution of deformations in the cross section is not linear. This paper introduces a numerical technique to determine the strut-and-tie models using a variant of the classical Evolutionary Structural Optimization, which is called Smooth Evolutionary Structural Optimization. The basic idea of this technique is to identify the numerical flow of stresses generated in the structure, setting out in more technical and rational members of strut-and-tie, and to quantify their value for future structural design. This paper presents an index performance based on the evolutionary topology optimization method for automatically generating optimal strut-and-tie models in reinforced concrete structures with stress constraints. In the proposed approach, the element with the lowest Von Mises stress is calculated for element removal, while a performance index is used to monitor the evolutionary optimization process. Thus, a comparative analysis of the strut-and-tie models for beams is proposed with the presentation of examples from the literature that demonstrates the efficiency of this formulation. © 2013 Elsevier Ltd.
dc.languageeng
dc.relationEngineering Structures
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEvolutionary Structural Optimization
dc.subjectReinforced concrete structures
dc.subjectStrut-and-tie models
dc.subjectTopology optimization
dc.subjectComparative analysis
dc.subjectEvolutionary optimizations
dc.subjectEvolutionary structural optimization
dc.subjectNumerical techniques
dc.subjectPerformance indices
dc.subjectStructural elements
dc.subjectStrut-and-tie model
dc.subjectTopology Optimization Method
dc.subjectConcrete buildings
dc.subjectConcrete construction
dc.subjectConcretes
dc.subjectReinforced concrete
dc.subjectShape optimization
dc.subjectStructural design
dc.subjectStructural optimization
dc.subjectcomparative study
dc.subjectconcrete structure
dc.subjectdeformation mechanism
dc.subjectefficiency measurement
dc.subjectmodel
dc.subjectoptimization
dc.subjectperformance assessment
dc.subjectreinforced concrete
dc.subjectstress field
dc.titleComparative analysis of strut-and-tie models using Smooth Evolutionary Structural Optimization
dc.typeOtro


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