The design of Tuned Mass Dampers (TMD) in order to get the required pedestrian comfort is becoming more and more usual in the current design of footbridges. This paper analyzes the optimal TMD design for mitigating pedestrian-induced vibrations in the most frequent loading scenarios, i.e. the single pedestrian modeled as a resonant moving harmonic load and the normal unrestricted pedestrian traffic, modeled probabilistically through an equivalent spectral model. Two optimization criteria are set, concerning the min-imization of the structural response and of the TMD displacement. The obtained results are compared with classic criteria given by the literature.
Passive control of human-induced footbridge vibrations
TUBINO, FEDERICA;PICCARDO, GIUSEPPE
2013-01-01
Abstract
The design of Tuned Mass Dampers (TMD) in order to get the required pedestrian comfort is becoming more and more usual in the current design of footbridges. This paper analyzes the optimal TMD design for mitigating pedestrian-induced vibrations in the most frequent loading scenarios, i.e. the single pedestrian modeled as a resonant moving harmonic load and the normal unrestricted pedestrian traffic, modeled probabilistically through an equivalent spectral model. Two optimization criteria are set, concerning the min-imization of the structural response and of the TMD displacement. The obtained results are compared with classic criteria given by the literature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.