Parametric correlations between experimental results and the base isolation, in situ, structural ones

Polidor Bratu, Ovidiu Vasile, Patricia Murzea, Carmen Alexandru

Rezumat/Abstract. The paper addresses the topic of the inconsistency between experimental, laboratory results for antiseismic devices and the dynamic stiffness, internal damping and dissipation parameters through additional devices. The necessary corrections of the stiffness and dissipation (damping) parameters will be presented when the antiseismic devices are equipped to satisfy the adequate functions in a complex structural system (buildings, viaducts, bridges) under the conditions of seismic motions characteristic to the Romanian territory. In this context, the kinematic excitation method, compared to the dynamic evaluation method of the vibration dissipation capacity, produced by a seismic shock is shown.

Cuvinte cheie/Key words: dynamic and kinematic excitation, laboratory testing, isolators

Text integral/Full text