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Master's Dissertation
DOI
10.11606/D.18.2018.tde-24042018-141701
Document
Author
Full name
Dermival Paula Bezerra
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1995
Supervisor
Committee
Antunes, Helena Maria Cunha do Carmo (President)
Menezes, Francisco Antonio
Mori, Dagoberto Dario
Title in Portuguese
Análise de estruturas tridimensionais de edifícios altos considerando a rigidez transversal à flexão das lajes
Keywords in Portuguese
Diafragmas (lajes)
Edifícios altos
Método dos elementos finitos
Sistema estrutural
Abstract in Portuguese
Este trabalho apresenta o estudo do comportamento das estruturas tridimensionais de edifícios altos, sujeitos às ações verticais e laterais, considerando-se a rigidez transversal à flexão das lajes. A análise é feita pelo processo dos deslocamentos para todos elementos, onde emprega-se o Método dos Elementos Finitos na discretização das lajes e vigas em cada pavimento. O sistema estrutural não considera a presença dos núcleos estruturais, pilares ou pilares-parede submetidos à flexo-torção. As lajes também funcionam como diafragmas infinitamente rígidos em seu plano, sendo responsável pela compatibilidade dos deslocamentos correspondentes e pela transmissão das forças do vento aos pilares. Elaborou-se um programa de computador que automatiza o processo utilizado, e alguns exemplos são apresentados para comprovar sua validade.
Title in English
Three dimensional analysis of tall buildings considering the transverse bending stiffness of slabs
Keywords in English
Diaphragms (slabs)
Finite element method
Structural system
Tall buildings
Abstract in English
This work presents a study about the behavior of three dimensional structures of tall buildings, subjected to vertical and lateral loads, considering the transverse bending stiffness of slabs. The analysis is done by stiffness method for all elements, and Finite Element Method is used in the discretization of slabs and beams of each floor. The structural system does not consider cores, columns or shearwalls that are subjected to warping effects. The slabs also act as diaphragms with an infinite stiffness in their plane, responsible displacements, for compatibility of the horizontal and so transmit the wind forces to the columns. A computer program is developed to get automatic the process utilized in the analysis, and some examples are presented to check its validity.
 
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Publishing Date
2018-04-24
 
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