Improved seismic design procedure for steel moment frames

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

A. Villani (Autor) FEUP; J. M. Castro (Autor) FEUP; A. Y. Elghazouli (Autor) FEUP

Ata de Conferência Internacional

Título: STESSA 2009 - BEHAVIOUR OF STEEL STRUCTURES IN SEISMIC AREAS

Páginas: 673-678

6th International Conference on Behaviour of Steel Structures in Seismic Areas

Philadelphia, PA, AUG 16-20, 2009

Indexação

ISI Proceedings

ISI Web of Knowledge - 5 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia estrutural

Outras Informações

ID Authenticus: P-00G-706

Abstract (EN): The advent of performance-based earthquake engineering turned the focus of the research community to the development of new seismic design approaches which focus essentially on displacement control. Despite the advantages of the modern approaches in comparison with traditional force-based design methods, their incorporation in seismic design codes is not expected to occur in the near future. It is therefore important to improve the current procedures in order to achieve designs that result in structures that perform more consistently with the requirements prescribed in performance-based guidelines. In this paper a critical review of the force-based procedure implemented in Eurocode 8 is firstly provided and the main limitations associated with it are identified. An improved design procedure is then suggested which incorporates a proposal for the selection of the behaviour factor. The new procedure is applied to a set of moment frames for which a detailed assessment is carried out using both nonlinear static and dynamic analyses. The performance of the frames confirm the better accuracy of the proposed procedure in achieving structures which perform close to that predicted at the design stage and hence that are more likely to comply with performance objectives prescribed in current and future guidelines.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6