In this work we show that is possible to successfully apply the concept of Nonlinear Targeted Energy Transfer (TET) to seismic protection of structures. We consider a three-storey shear frame structure under seismic excitation, modeled as a three degree-of freedom (DOF) system. We consider historic earthquakes as seismic excitation. The seismic mitigation is achieved by applying single or multiple Nonlinear Energy Sinks (NESs) to stores of the test structure. We study the performance and efficiency of the NESs through a set of evaluation criteria. We show that it is indeed possible to drastically reduce the structural seismic response (e.g., displacements, drifts, accelerations) using such NES configurations. The theoretical results are confirmed by experimental measurements.
|Titolo:||Targeted Energy Transfers For Seismic Mitigation Induced By Attachments With Essential Stiffness Nonlinearities|
|Data di pubblicazione:||2007|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|