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Showing 1 to 20 of 772 for “"Cálculo"”.
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Cálculo de placas com ângulos reentrantes
This paper aims to determine an adequate orientation in the design of plates with re-entrant angles, with various boundary conditions, which were made of reinforced concrete. A study made of the relation of the sides in the general behaviour of the efforts, and examples of plates with variable …
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Integración conservativa en plataforma de cálculo distribuido
… obtenida. La implementación en un entorno de cálculo distribuido permite que los cálculos necesarios puedan ser repartidos entre los distintos procesadores o máquinas dispo¬nibles. Esta metodología permite abordar problemas en los que el número de grados de libertad es elevado de manera …
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Contribuição ao cálculo de recalques de estacas
In this thesis a study about the settlement due to an axial and vertical load on a single pile is made. The considerations are restricted to the linear elastic part of the load versus settlement diagram. The main purpose is to evaluate the deformation behaviour of deep foundations, by means of …
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Cálculo automático de pontes de eixo curvo
The purpose of this study is the automatic analysis of principal beams of the curved bridges, considering them isolatad from the columns. The computer program developed allows the analysis of bridges with any variation in curvature and cross section. At first, a brief description of bridges and the …
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Cálculo aproximado da deflexão lateral em edifícios altos
This work aims to present ways for a quick calculation of lateral deflection of multistory buildings. At preliminary stage of design, the use of approximate methods is very interesting, because use of computer programs with preliminary data is not a good practice. A method to do the compatibility …
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Especificación orientada a objetos de sistemas de cálculo simbólico
This work deals with the specification of symbolic computation systems in Algebraic Topology. In particular, two systems called EAT and Kenzo are studied. These programs obtain homology and homotopy groups of complex topological spaces, such as iterated loop spaces. These systems have provided …
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Métodos recursivos para o cálculo da integral de convolução
… analíticos e numéricos desenvolvidos para o cálculo da resposta forçada, bem como as limitações de cada método. As vantagens do método recursivo proposto são notáveis já que não é requerido o cálculo de autovalores das matrizes nem a redução à primeira ordem, e nem o uso de hipóteses …
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Aspectos particulares en el cálculo de puentes mixtos : efectos diferidos
El objeto del presente proyecto es tratar de profundizar sobre los efectos diferidos en los puentes mixtos. Aunque los fenómenos diferidos acontecen en todas las estructuras en la que está presente el hormigón, son en las estructuras mixtas donde aquellos tienen un carácter más acusado. En este …
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Cálculo automático do coeficiente de acoplamento pelo método de Newland
ln this work we propose modifications and additions to ''SAP IV – structural Analisys System", to make it possible the single run calculations of the coupling factors for vibrating systems with both weak coupling and internai damping and submited to a broad band spectral density excitation. We …
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Cálculo automático do efeito de vento em estruturas de edifício
The scope of the present paper is the theoretical analysis of spacial frames under lateral loading (wind load) and the preparation of a computer program for evaluating the displacements and the intemal forces of the structural members. The structural model can be described as two groups of mutually …
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Cálculo automático de cortinas ancoradas pelo método de Brinch Hansen
A description of the theoretical fundamentals of Brinch Hansen’s method of earth pressure calculation is given in this work, and a computer program is presented for analysis of anchored sheet-pile walls with one or no yield hinges in its state of failure. A comparison is made between the results …
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Modelo de cálculo de fiabilidad del proceso de inspección de mercado
Estado de la cuestión La creación del Espacio Común Europeo y del Mercado Único supone un reto, tanto para la actividad industrial, como para el desarrollo del libre comercio en los países de la Unión europea. Englobado en dicha actividad industrial se encuentra el sector de fabricación de máquinas …
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Algoritmo para cálculo de equilíbrio de fases com precipitação de parafinas
Paraffin precipitation is responsible for several problems in industry, being usually mecanically remedied or mitigated by chemical inhibitors, what increases the costs of the production processes. Against such a background, a more economic and efficient approach consists in predicting the wax …
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Análise dinâmica e cálculo da fadiga de estruturas de plataformas marítimas
The main purpose of this work is to study the dynamic behaviour and the change in the fatigue damage corresponding to fixed offshore steel structures when there are changes in analysis parameters. The dynamic behaviour for structures similar to those of real offshore platforms is determined using …
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Modelo estatístico para cálculo do Fator de Segurança Global de Estaqueamentos
The quality control of piled foundations becomes necessary in very important constructions. However, a deterministic analysis is impossible because of the great number of piles in the foundation. It's necessary to create a statistical model that using a sample, especially choosen for this, …
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Métodos de cálculo de atrito negativo em estacas - estudo e discussão
This work presents a state of art of negative skin friction on piles. The must usual calculation methods and how to deal with this problem in deep foundation design are discussed. Two field problems were analyzed according to the above cited methods.
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Aterros sobre solos compressíveis - cálculo automático da sua construção por etapas
Present an automatic programme wich permits design and analysis of embankments built on compressible and low strengh soils. The programme deals with the step-by-step construction of the embankment and optimizes the rate of construction from the given data and required stability. The programme …
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Cálculo de valor del cliente en empresas productoras de hidrocarburos. Caso Pluspetrol
Según las últimas tendencias de Comercialización no todos los clientes aportan el mismo valor a una compañía, por lo que es recomendable aplicar alguna metodología para seleccionar clientes y así dirigir los esfuerzos de comercialización de manera más efectiva. Sin embargo, ese análisis no es …
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Desarrollo de nuevos algoritmos para el cálculo de la proyección Gauss-Krüger
… entre 1820 y 1830. Utilizamos un programa de cálculo simbólico, para obtener el desarrollo completo de todas las fórmulas y estudiar la influencia de cada término en el resultado final. De esta manera podemos saber qué términos pueden ser o no despreciados cuando queremos alcanzar una …
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Análise de esforços e cálculo de fadiga no transporte de plataformas offshore
The purpose of this work is to assess the structural effects and the cumulative fatigue damage that may occur in the transportation of jackets by barges and self elevating units, as well as to compare the actions of this installation phase with those of the "in place" phase. The structure is …
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