CABLE TENSIONING CONTROL AND MODAL IDENTIFICATION OF A CIRCULAR CABLE-STAYED FOOTBRIDGE

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Rebelo, C (Autor) Outra; Julio, E (Autor) Outra; Varum, H (Autor) FEUP; Costa, A (Autor) FEUP

Revista

Título: Experimental Techniques

Vol. 34

Páginas: 62-68

ISSN: 0732-8818

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 14 Citações

Scopus - 19 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

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

Outras Informações

ID Authenticus: P-003-577

DOI: 10.1111/j.1747-1567.2009.00539.x

Abstract (EN): The modal identification and vibration measurements and finite element (FE) modeling of circular cable-stayed footbridge located in Aveiro, Portugal has been discussed. The vibration measurements on the bridge were planned aiming to ensure the correct installation of axial forces in the cables, to characterize the dynamic behavior of the bridge, and to obtain the response acceleration when groups of synchronized pedestrians cross the bridge. The data acquisition was performed using five roving and three reference accelerometers, including one reference vertical accelerometer at the top of the mast. The planned structural behavior of the bridge deck depends on the correct tension forces installed in the cables. The modal identification was based on the techniques of modal extraction in the frequency and time domain implemented in ARTeMIS software. The vertical acceleration induced by the ambient excitation mainly because of wind was measured on the bridge deck and on the top of the mast.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7