On the Applicability of Conventional Seismic Design Methodologies to Hybrid RC-Steel Systems

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Moreira, RF (Autor) Outra; Humberto Varum (Autor) FEUP; J. M. Castro (Autor) FEUP

Revista

Título: Buildings

Vol. 12

Página Final: 1558

ISSN: 0007-3725

Editora: MDPI

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-00X-AEA

DOI: 10.3390/buildings12101558

Abstract (EN): This paper addresses the application of conventional (force-based) seismic design methodologies to hybrid RC-steel systems. The q-factor-based EC8-3 seismic assessment procedure is first reviewed. A case-study application follows, analyzing and discussing the difficulties a practitioner will face when assessing the efficiency of a steel-brace retrofitting system designed within the framework of EC8-1. Afterward, the performance of the obtained retrofitted structure is evaluated using nonlinear analysis. The obtained results are discussed in light of the EC8-3 performance requirements, and conclusions are drawn about the adequacy of the force-based design (FBD) methodology (and associated q-factors) for such situations. The study shows that the process does not ensure the adequate seismic behavior of the retrofitted structures. It thus calls for the development of an effective performance-based design methodology that explicitly considers the interaction between the two structural systems (RC structure and steel braces), namely the influence of the steel braces' resistance on the deformation capacity of RC members.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 19