ELEVATED WATER RESERVOIR MONITORING USING OPTICAL FIBER ACCELEROMETER

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Paulo Fernando D da Costa Antunes (Autor) Outra; Hugo Filipe P Pinheiro Rodrigues (Autor) Outra; Humberto Varum (Autor) FEUP; Paulo Sergio D de Brito Andre (Autor) Outra

Revista

Título: INSTRUMENTATION SCIENCE & TECHNOLOGY

Vol. 41

Páginas: 125-134

ISSN: 1073-9149

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 4 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

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

Outras Informações

ID Authenticus: P-006-K6Y

DOI: 10.1080/10739149.2012.735308

Abstract (EN): Structural health monitoring is defined as the structural behavior surveillance during a predetermined time or throughout the structure's lifetime, in order to detect materials or structural degradation. Periodical measurements can detect changes in the natural frequencies of the structure, and indicate the structural damage or deterioration. In this work, we experimentally demonstrated the use of a fiber Bragg grating-based biaxial accelerometer in dynamic measurements on an elevated reinforced concrete water reservoir. This elevated water reservoir structure was suitable to be used as a demonstration of the application of optical accelerometers in the structure natural frequencies measurement, under environmental excitation. The obtained experimental values for first natural frequency in the transverse and longitudinal directions were 0.805 Hz and 0.903 Hz, respectively. These values present a relative error smaller than 0.5% when compared with that obtained by the structure numerical simulation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10