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Authors
Advisor(s)
Abstract(s)
O presente trabalho tem como foco principal um conjunto específico de estruturas, torres metálicas e de betão, que servem de suporte a equipamentos de telecomunicações. Este trabalho propõe-se a estudar as diversas tipologias de estruturas existentes a nível nacional, e analisar um conjunto de questões observáveis durante o período de vida útil das designadas torres.
Nesta monografia são abordados os diferentes aspetos a considerar na manutenção preventiva do parque de infraestruturas. Da amostra de estruturas que foi alvo de estudo neste trabalho, foi importante distinguir a grande variedade de soluções. Porém a abordagem às inspeções e conservação das torres de telecomunicações foi feita com base na distinção do seu principal material constituinte, a saber, aço e betão.
São analisadas as inspeções às estruturas, referindo-se sempre que possível as normas nacionais e/ou europeias que presidem a cada ensaio mencionado. Como consequência das inspeções efetuadas às torres, são posteriormente registadas e analisadas as patologias mais comuns e críticas à durabilidade e integridade das torres metálicas e de betão, servindo depois de base à definição e planeamento das ações de conservação destas estruturas. Nesta secção são referidos os materiais e técnicas construtivas indicadas na conservação deste tipo de estruturas, com vista à minimização de impacto no cliente, dando especial ênfase ao tratamento anticorrosivo dos elementos metálicos.
Por último, são apresentados dois casos de estudos, uma torre metálica e outra de betão armado, onde para cada caso se tentou aplicar os procedimentos aportados nos capítulos anteriores, analisando as anomalias observadas e explicando as medidas corretivas tomadas.
The present work focus on a specific set of structures, steel and concrete towers that support telecommunications equipment. It is its main goal to study the different types of structures that exist at a national level, and to analyze a set of questions observed during the expected life of the designated towers. This monograph approaches the different aspects to be considered in the preventive maintenance of the infrastructures park, and from the considered case studies, it was important to distinguish a great variety of the possible solutions to implement. However, the approach to the tower inspection and maintenance is, whenever possible, based on the distinction of its main basic material, whether they´re made of steel or concrete. Moreover, all the tower assessments and tests are always referred to national and / or European standards that govern each test. All the results and information gathered from the inspections are analyzed; the most common pathologies and critical issues to the durability and integrity of the steel and concrete towers are recorded, serving as a kick off point to the defining and planning of all the conservation actions needed. Furthermore, the materials and construction techniques indicated in the maintenance of these types of structures are presented, with special emphasis on the anticorrosive treatment of metallic elements, always targeting at minimize the impact on the customer. Finally, two case studies are presented, one steel tower and one reinforced concrete tower. In each case, the anomalies were registered and analyzed according to the previously studied actions, and the previously mentioned maintenance procedures and techniques were applied.
The present work focus on a specific set of structures, steel and concrete towers that support telecommunications equipment. It is its main goal to study the different types of structures that exist at a national level, and to analyze a set of questions observed during the expected life of the designated towers. This monograph approaches the different aspects to be considered in the preventive maintenance of the infrastructures park, and from the considered case studies, it was important to distinguish a great variety of the possible solutions to implement. However, the approach to the tower inspection and maintenance is, whenever possible, based on the distinction of its main basic material, whether they´re made of steel or concrete. Moreover, all the tower assessments and tests are always referred to national and / or European standards that govern each test. All the results and information gathered from the inspections are analyzed; the most common pathologies and critical issues to the durability and integrity of the steel and concrete towers are recorded, serving as a kick off point to the defining and planning of all the conservation actions needed. Furthermore, the materials and construction techniques indicated in the maintenance of these types of structures are presented, with special emphasis on the anticorrosive treatment of metallic elements, always targeting at minimize the impact on the customer. Finally, two case studies are presented, one steel tower and one reinforced concrete tower. In each case, the anomalies were registered and analyzed according to the previously studied actions, and the previously mentioned maintenance procedures and techniques were applied.
Description
Dissertação de natureza científica para obtenção do grau de mestre em Engenharia Civil na área de especialização de Estruturas
Keywords
Torres metálicas Steel towers Torres de betão armado Reinforced concrete towers Telecomunicações Telecommunications Inspeção InspectionInspection Conservação Conservation Corrosão Corrosion
Citation
CALADO, Ana Patrícia Leite - Inspeção e conservação de torres de telecomunicações. Lisboa: Instituto Superior de Engenharia de Lisboa, 2017. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa