Stress-strain state investigation of the “YASUNI” shell by bionic architecture methods based on numerical modeling

Abstract

It is hard to imagine architecture and construction without large-span shells of various applications and taking into consideration the requests of architects, the new achievements in numeral modeling of the surfaces and introduction of new groups of tailored surfaces, the appearance of new forms and types of thin-walled shell structures of this kind is inevitable. The bionic method of solving these tasks pushes the boundaries of these opportunities. The subject being studied is the stress strain state of new uncanonical shell "YASUNI", designed of monolithic reinforced concrete with the use of modern finite element analysis settlement system. The form of the shell is built on the basis of images of the Ecuadorian flora. The form of the shell imitates a leaf of a flower laying on the lay of the land. The triangle finite-element mesh is created with a harmonic fusion of lily and daisy in a single structure. The shell is designed as a solid-cast one, made of different classes of reinforced concrete (В25, В30, В35) with thickness from δ = 5 cm to δ = 10 cm with a step 1 cm without contouring beams. The structure is subjected to self-weight. The article introduces the first results of the research of stress strain state of the shell "YASUNI". The authors continue the research of the work this shell with different geometrical parameters, the boundary conditions with the addition of contour elements. Due to the computing complex SCAD OFFICE, precision of which is enough to perform calculations it is possible to reach the most advantageous technical-and-economic indexes of the researched uncanonical shell.Keywords: shell of uncanonical form, bionic architecture, finite element method, triangle finite-element mesh, stressstrain state, monolithic reinforced concrete structure, computer system SCAD Office

Análisis estructural numérico del modelo a escala 1:10 del cascarón no-canónico “Yasuní” generado sobre la base de la arquitectura biónica

“…En este artículo se presentan los resultados de la continuación de la investigación del estado tenso-deformacional (ETD) de esta nueva forma no-canónica de envolvente estructural, que fue iniciada por los autores y que se presentó en el artículo [6]. Para este análisis se plantea la estructura propuesta por el arquitecto (Figura 1), como una estructura de pared delgada de hormigón monolítico en una escala 8 veces menor.…”

“…prestaciones sería favorable para elaborar cascarones de menores espesores ya que existiría una mayor influencia sobre el control de deflexiones y mejor comportamiento ante las solicitaciones desarrolladas. En este artículo se ha continuado la investigación del estado tenso-deformacional del cascarón "YASUNI" presentada en [6]. Esta investigación continuará en curso y se estudiará el estado tenso-deformacional de este cascarón con la modificación de diferentes parámetros geométricos, materiales y condiciones de frontera y la introducción de elementos de borde o rigidizadores transversales sobre un modelo numérico a escala real.…”