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Abstract(s)
O presente trabalho de projeto teve como objetivo aprofundar conhecimentos sobre o processo de
dimensionamento sísmico de edifícios de betão armado, de acordo com os critérios definidos na norma
NP EN 1998-1. Foram trabalhadas e desenvolvidas competências específicas de simulação numérica por
elementos finitos, recorrendo a ferramentas de cálculo automático, levando a cabo análises elásticas
lineares com coeficientes de comportamento, considerando espectros de resposta regulamentares.
Após apresentação arquitetónica do edifício em estudo, que à data deste documento se encontra em
construção, e conceção estrutural de acordo com as normas NP EN 1992-1-1 e NP EN 1991-1-4, são
revistos os critérios de dimensionamento constantes da norma NP EN 1998-1 (gerais e específicos para
edifícios de betão armado). Determinados os atributos dinâmicos da estrutura original, segue-se uma
simulação do mesmo edifício, com as mesmas características, numa zona de maior sismicidade, no caso
em Lisboa. No final, são comparadas as diferenças entre dimensionamentos, analisados os impactos
económicos que o dimensionamento sísmico possa originar e retiradas conclusões.
The aim of this project was to deepen our knowledge of the seismic design process for reinforced concrete buildings, in accordance with the criteria defined in the NP EN 1998-1 standard. Specific finite element numerical simulation skills were developed, using automatic calculation tools, carrying out linear elastic analyses with behavioural coefficients, considering regulatory response spectra. After an architectural presentation of the building under study, which at the time of writing is under construction, and structural design in accordance with the NP EN 1992-1-1 and NP EN 1991-4 standards, the design criteria contained in the NP EN 1998-1 standard (general and specific for reinforced concrete buildings) are reviewed. After determining the dynamic attributes of the original structure, a simulation of the same building with the same characteristics is carried out in an area with higher seismicity, in this case Lisbon. In the end, the differences between the designs are compared, the economic impacts of seismic design are analysed and conclusions are drawn.
The aim of this project was to deepen our knowledge of the seismic design process for reinforced concrete buildings, in accordance with the criteria defined in the NP EN 1998-1 standard. Specific finite element numerical simulation skills were developed, using automatic calculation tools, carrying out linear elastic analyses with behavioural coefficients, considering regulatory response spectra. After an architectural presentation of the building under study, which at the time of writing is under construction, and structural design in accordance with the NP EN 1992-1-1 and NP EN 1991-4 standards, the design criteria contained in the NP EN 1998-1 standard (general and specific for reinforced concrete buildings) are reviewed. After determining the dynamic attributes of the original structure, a simulation of the same building with the same characteristics is carried out in an area with higher seismicity, in this case Lisbon. In the end, the differences between the designs are compared, the economic impacts of seismic design are analysed and conclusions are drawn.
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Keywords
Design of reinforced concrete buildings seismic design NP EN 1998-1