Optimization procedure for the strut-and-tie method considering the stiffness of concrete in compression

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dc.catalogadorpau
dc.contributor.advisorGutiérrez Cid, Sergio
dc.contributor.authorLarraín Silva, Maximiliano
dc.contributor.otherPontificia Universidad Católica de Chile. Escuela de Ingeniería
dc.date.accessioned2023-07-05T15:39:53Z
dc.date.available2023-07-05T15:39:53Z
dc.date.issued2023
dc.descriptionTesis (Master of Science in Engineering)--Pontificia Universidad Católica de Chile, 2023
dc.description.abstractAn optimization procedure is proposed for finding an optimal truss for the Strut-and-Tie method used to design the steel reinforcement in concrete structural elements. The basis of the procedure is to maximize the global stiffness of the element by optimizing the reinforcement layout but considering the stiffness of concrete in the compressed zones of the element during the optimization. The hydrostatic stress is used to determine those zones, which change along the maximization. The stiffness provided by the concrete in compression to the overall system during the optimization, result in optimal topologies different from those found in the literature, which, when translated into admissible trusses for the Strut-and-Tie method, in most cases (analyzed by numerical modeling), lead to reinforced concrete elements that are better in terms of higher ratios of ultimate load over the weight of steel, and also in terms of spreading more evenly the cracks in the damaged zones of the element. Three typical cases from the literature are analyzed. For each case, the optimal topology and the truss structures derived from it are shown. Finally, the performance of each Strut and Tie system is evaluated using Non-lineal Finite Elements analysis and compared to existing models.
dc.fechaingreso.objetodigital2023-07-05
dc.format.extentx, 54 páginas
dc.identifier.doi10.7764/tesisUC/ING/74102
dc.identifier.urihttps://doi.org/10.7764/tesisUC/ING/74102
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/74102
dc.information.autorucEscuela de Ingeniería; Gutiérrez Cid, Sergio; 0000-0002-1124-038X; 100336
dc.information.autorucEscuela de Ingeniería; Larraín Silva, Maximiliano; S/I; 1026757
dc.language.isoen
dc.nota.accesoContenido completo
dc.rightsacceso abierto
dc.subjectStrut and Tie
dc.subjectCompliance minimization
dc.subjectHomogenization method
dc.subjectHydrostatic stress
dc.subjectReinforced concrete
dc.subjectStructural optimization
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleOptimization procedure for the strut-and-tie method considering the stiffness of concrete in compression
dc.typetesis de maestría
sipa.codpersvinculados100336
sipa.codpersvinculados1026757
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