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Vibration based criteria for damage control in bridge structures
Rodrigues, J. Fernando; Almeida, Pedro A.O.; Casas Rius, Joan Ramon
Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció; Universitat Politècnica de Catalunya. TE - Tecnologia d´Estructures
Along the years, researchers have made efforts in the sense of quantifying structural performance and damage in function of vibration measurements, [1] and [2]. Similarly the present work investigates a vibration based criteria for bridge structures as a basis to evaluate damage in existing bridges. With this purpose, a bridge data base collected during field tests accomplished in Brazilian bridges was used. The results show a clear correlation between the damage index and the intensity of bridge vibration. As a final result, from the observed correlations, limits of acceleration are proposed to be considered in existing bridges to certify a correct long-term condition. A critical approach of current Brazilian Standard (NBR-15307 2005) which suggests damage estimation in function of bridge vibration is also carried out.
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
Vibration -- Measurement
Structural dynamics
Bridges -- Testing
Concrete bridges
Vibration
Durability
Vibració -- Estructures
Ponts -- Anàlisi estructural (Enginyeria)
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