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Showing 1 to 12 of 12 for “"Estruturas reticuladas"”.
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Confiabilidade de estruturas reticuladas em ambientes de processamento paralelo
ln this work application of the First Order Second Moment reliability theory was used to asses the nominal failure probability of framed structures. A elast-plastic limit state function to structural elements and specialists methods were used for this purpose. A method to identify the most likely …
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Análise modal assintótica da estabilidade de estruturas reticuladas espaciais
This work presents a solution, by the Finite Element Method, for non-linear asymptotic analysis of elastic stability for space frames under conservative loads. The general non-linear equilibrium and critical equilibrium equations are obtained through a Lagrangian formulation, by analysing the …
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Análise não-linear de estruturas reticuladas espaciais de concreto armado
Present an automatic program for non-linear analysis of spacial frames of reinforced concrete, including verification of structures under definite loading and research on its load-bearing capacity for a given disposition of loads. On its development are considered both the non-linearity of the …
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Análise de estruturas reticuladas pelo método das matrizes de transferência
The transfer matrices methods concepts in structural analysis are established as well as four automatic programs, in FORTRAN, turned over the framed structures frequently used in civil construction. They were developed for an IBM 1130, 8K, internal memory computer and permit to analyse simple or …
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Dinâmica de estruturas reticuladas sob cargas móveis, pelo método dos elementos finitos
The dynamic analysis of framed structure, in particular, beams and plane frames, is the purpose of this work. Using the finite element method applied to structural dynamics we present the necessary theory to obtain the response due to concentraded and distributed moving loads on beams and on plane …
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Dinâmica de estruturas reticuladas sob cargas móveis pelo método das matrizes de transferência
The aim of this work is to compute impact coefficients for structures subjected to moving loads using the Method of Transfer Matrices. This study presents the concepts of the method used, the process used to evaluate the required matrices, an automatic Fortran Program developed for this analyses …
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Resposta dinâmica de estruturas reticuladas a cargas móveis, pelo método dos elementos finitos
Studies the dynamic behavior of framed structures under moving loads by means of the finite element method. Three different types of loadings are idealized and impact factors determined for them, being developed computer programs for dynamic analysis of beams and plane frames. The structure-loading …
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Análise de estruturas reticuladas espaciais com barras de eixo curvo e seção variável
The present thesis deals with a computer program for the solution of space framed structures. Their unidimensional elements may have straight or curved axis, and constant or variable sections. The cross-section may be of any shape, provided it has at least an axis of simmetry. When this condition …
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Análise por computadores digitais de estruturas reticuladas no espaço, com elemento de secção variável
The scope of this paper is to organize a computer program for three dimensional structural frames. The analysis is carried out with the stiffness method. Some arrangements in the stiffness matrix are made in arder to obtain a compact formulation for the problem without loss in generality. These …
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Método dos elementos finitos aplicado a análise não linear de vigas Timoshenko-Vlasov
… não linear tridimensional de vigas para simular estruturas reticuladas, considerando efeitos de empenamento da seção transversal como uma das variáveis do problema. Será desenvolvido um programa em linguagem C para a análise de estruturas de vigas considerando as equações constitutivas elásticas …
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Análise de treliças planas viscoelásticas com deformações finitas e pórticos planos viscoelásticos com vigas mistas
Este trabalho compõe-se de duas partes. A primeira parte propõe-se a apresentar um estudo e um programa computacional para a análise não linear geométrica de treliças planas com propriedades: viscoelásticas. Na segunda parte, tem-se o estudo e um programa sobre pórticos planos com propriedades …
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Um método interativo para análise de não-linearidade geométrica em estruturas reticulares
An iteration procedure is presented to determine the buckling loads of plane and space framed structures taking into account non-linear behavior. Two effects are included in the analysis: the axial forces on the member stiffness matrix and the changes of geometry caused by large displacements. A …