Computational generation of free-form shells in architectural design and civil engineering

dc.creatorVizotto, I
dc.date2010
dc.dateDEC
dc.date2014-11-17T11:20:54Z
dc.date2015-11-26T16:42:28Z
dc.date2014-11-17T11:20:54Z
dc.date2015-11-26T16:42:28Z
dc.date.accessioned2018-03-28T23:27:03Z
dc.date.available2018-03-28T23:27:03Z
dc.identifierAutomation In Construction. Elsevier Science Bv, v. 19, n. 8, n. 1087, n. 1105, 2010.
dc.identifier0926-5805
dc.identifierWOS:000285223900012
dc.identifier10.1016/j.autcon.2010.09.004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56413
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/56413
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56413
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1273267
dc.descriptionThis study develops a computational model of free-form shell generation in the design of roof structures that rely on the optimized behavior of the membrane theory of thin shells. For architects and engineers, the model offers a low cost, fast, and relatively easy design solution. A computational model for structural free-form shell generation is presented to simulate physical models of shell optimization. This method of designing optimized structures is based on mathematical programming combined with the finite element technique, and is inspired by the laws of nature and, in particular, by the Heinz Isler methods of designing shells using physical models. A flexible membrane is simulated automatically, initially in the horizontal plane surface, with any shape and boundary conditions, and able to carry several specified loads. The membrane under the action of these loads is deformed until reaching one of its equilibrium configurations, which defines the middle surface of the shell to be built. By the principle of minimum total potential energy, the positions of steady equilibrium of the membrane correspond to the local minimum points of the total potential energy function. When the total potential energy function does not exist, it is advisable to use an incremental Newton-Raphson-type method to find the solutions for the nonlinear system of equations given by the equilibrium equations of the membrane in the space. Structural analysis of thin concrete shells with the final shapes of the optimized membranes demonstrates which displacements and principal stresses are optimal. The computational method presented in this paper could be integrated, for example, with Contour Crafting (CC), a layered fabrication technology that offers the potential to construct full-scale buildings directly from three-dimensional computer-aided design models (3D CAD). Structural behavior is in accordance with the membrane theory of thin shells and aesthetic appeal is a natural consequence of the forms generated for applications in architectural design and civil engineering. (C) 2010 Elsevier B.V. All rights reserved.
dc.description19
dc.description8
dc.descriptionSI
dc.description1087
dc.description1105
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationAutomation In Construction
dc.relationAutom. Constr.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectFree-form shells
dc.subjectNon-geometric shells
dc.subjectShell form finding
dc.subjectShell optimization
dc.subjectThin concrete shells
dc.subjectConcrete shell roof
dc.subjectConcrete Shells
dc.titleComputational generation of free-form shells in architectural design and civil engineering
dc.typeArtículos de revistas


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