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dc.creatorLuévanos-Rojas, Arnulfo
dc.creatorLópez-Chavarría, Sandra
dc.creatorMedina-Elizondo, Manuel
dc.creatorKalashnikov, Vitaliy V.
dc.date2020-04-29
dc.identifierhttp://revistadelaconstruccion.uc.cl/index.php/RDLC/article/view/12314
dc.identifier10.7764/RDLC.19.1.90-102
dc.descriptionObjective of this research is to present a mathematical model for optimal design of rectangular cross-section beams with straight haunches under the criterion of minimum cost considering the concrete cost and reinforcing steel cost, and taking into account the equations of the regulation (ACI 318S-14). This model presents the equations for a uniformly distributed load and a concentrated load located anywhere on the beam. Two examples are developed by the proposed model, one for uniformly distributed load and another for concentrated load showing the best solution for each case. The results show the following: a) The prismatic beams for uniformly distributed load have a total cost of the 8% greater, a total volume and a total weight of the 9% greater with respect to the non-prismatic beams; b) The prismatic beams for concentrated load have a total cost, a total volume and a total weight of the 6% greater with respect to the non-prismatic beams. The main conclusions are: For a smaller b width the optimal design for both models is presented. The non-prismatic beams are more economical, also these have less volume and less weight with respect to prismatic beams.      en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherEscuela de Construcción Civil de la Pontificia Universidad Católica de Chileen-US
dc.relationhttp://revistadelaconstruccion.uc.cl/index.php/RDLC/article/view/12314/11092
dc.sourceRevista de la Construcción. Journal of Construction; Vol. 19 No. 1 (2020): Revista de la Construcción. Journal of Construction; 90-102en-US
dc.source0718-915X
dc.subjectOptimal designen-US
dc.subjectstraight haunchesen-US
dc.subjectminimum costen-US
dc.subjectrectangular cross-section beamsen-US
dc.subjectuniformly distributed loaden-US
dc.subjectconcentrated loaden-US
dc.titleOptimal design of reinforced concrete beams for rectangular sections with straight haunchesen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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