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Advisor(s)
Abstract(s)
A procura por pavilhões metálicos tem aumentado consideravelmente nos últimos anos, levando a que estas estruturas estejam muito padronizadas pelos engenheiros que as dimensionam. Estas estruturas estão sujeitas a várias ações, dependendo da zona em que estão localizadas, e é necessário que estas suportem as cargas impostas sem pôr em perigo vidas humanas e animais, bem como bens materiais. No dimensionamento de estruturas metálicas é necessário respeitar a regulamentação imposta pela legislação em vigor, nomeadamente os Eurocódigos. Estes constituem um conjunto de Normas Europeias relativas ao projeto de estruturas de edifícios e de outras obras de engenharia civil. No entanto, realizar um estudo da análise estrutural de um pavilhão respeitando as imposições dos Eurocódigos é uma tarefa morosa, daí que já existem vários programas desenvolvidos por várias empresas que conseguem fazer o dimensionamento de estruturas segundo o Eurocódigo. Contudo, estes programas não são economicamente acessíveis e a sua correta aprendizagem é demorada. O objetivo desta dissertação é desenvolver um programa que permita dimensionar pavilhões metálicos em perfis laminados a quente de uma forma mais rápida e simples. Inicialmente são abordados tópicos como a legislação em vigor, regras de dimensionamento impostas pelos Eurocódigos, métodos analíticos e programas computacionais existentes para o dimensionamento de pavilhões metálicos. Posteriormente são descritos todos os passos de como o programa foi desenvolvido e como funciona, seguido de validação com dois programas comerciais usando dois casos de estudo. No final são relatadas as conclusões e possíveis melhorias de serem realizadas.
The demand for steel portal frames has increased considerably in recent years, making these structures highly standardized by the engineers who design them. These structures are subjected to various actions, depending on the area where they are located, and it is necessary that they support the imposed loads without endangering human and animal lives, as well as material goods. When sizing steel structures, it is necessary to respect the regulations imposed by the current legislation, namely the Eurocodes. These constitute a set of European Standards related to the design of building structures and of other civil engineering works. However, performing a structural analysis study of a building while respecting the Eurocodes requirements is a time-consuming task. Thus, different developed software by several companies are available to design structures according to the Eurocode. However, these programs are not economically accessible, and their correct learning is time consuming. The objective of this dissertation is to develop a program to design steel portal frames made of hot rolled profiles in a faster and simpler way. Initially, topics like the current standards, design rules imposed by Eurocodes, analytical methods, and existing computer software for the design of metallic buildings are discussed. Afterwards, all the steps of how the software was developed and how it works are described, followed by validation with two commercial software using two case studies. At the end, the conclusions and possible improvements are reported.
The demand for steel portal frames has increased considerably in recent years, making these structures highly standardized by the engineers who design them. These structures are subjected to various actions, depending on the area where they are located, and it is necessary that they support the imposed loads without endangering human and animal lives, as well as material goods. When sizing steel structures, it is necessary to respect the regulations imposed by the current legislation, namely the Eurocodes. These constitute a set of European Standards related to the design of building structures and of other civil engineering works. However, performing a structural analysis study of a building while respecting the Eurocodes requirements is a time-consuming task. Thus, different developed software by several companies are available to design structures according to the Eurocode. However, these programs are not economically accessible, and their correct learning is time consuming. The objective of this dissertation is to develop a program to design steel portal frames made of hot rolled profiles in a faster and simpler way. Initially, topics like the current standards, design rules imposed by Eurocodes, analytical methods, and existing computer software for the design of metallic buildings are discussed. Afterwards, all the steps of how the software was developed and how it works are described, followed by validation with two commercial software using two case studies. At the end, the conclusions and possible improvements are reported.
Description
Keywords
Pavilhões metálicos Dimensionamento Método de Elementos Finitos Programa em Python Eurocódigos Análise estrutural Portal frames Design Finite Element Method Python software Eurocodes Structural analysis