Resumo

HENAO ANGEL, David; BOTERO PALACIO, Juan Carlos  e  MURIA VILA, David. Identification of dynamic properties of a structural model subjected to ambient vibration and forced vibration using shaking table. Ing. sísm [online]. 2014, n.91, pp.54-73. ISSN 0185-092X.

In order to validate the results obtained by the recently acquired seismic monitoring equipment at Universidad EAFIT, and to implement a numerical framework for the identification of the dynamic properties of a structure, a five-storey steel building was built and its numerical model was developed. The scaled model was subjected to ambient, forced vibration and shaking table test. The modal frequencies, vibration modes and damping ratios were estimated using a spectral analysis approach. Experimental results are in good agreement with numerical estimates. This validates the methodology used and the good performance of the monitoring equipment acquired.

Palavras-chave : Ambient vibration; forced vibration; stochastic processes; experimental system identification.