000009634 001__ 9634
000009634 005__ 20141205150225.0
000009634 04107 $$aeng
000009634 046__ $$k2008-10-12
000009634 100__ $$aCasarotti, Chiara
000009634 24500 $$aStudy of a Phenomenological Model For Elastomeric Bearings

000009634 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009634 260__ $$b
000009634 506__ $$arestricted
000009634 520__ $$2eng$$aElastomeric bearings are one of the most commonly used seismic isolators, whose considerably grown number of applications in recent years witnesses the confidence in seismic isolation. On the other hand, full-scale experimentation of isolators, so far conducted in a limited number of international facilities, focused the attention to unexpected collapses, highlighting how the assessment of the seismic behavior of base-isolated structures strongly depends on the accuracy of the isolators modeling. With some exception, models present in literature are generally intended to represent the overall isolator behavior, without information on the state of internal layers, where some rubber layer may show high deformations that can unevenly damage the layer itself and influence the global stress distribution. The main objective of the present work is to develop a phenomenological model able to represent the force-deformation state of each layer of the device. The proposed model includes geometric nonlinearities in the formulation and material nonlinearities in the constitutive laws, defined by a number of parameters which are calibrated coupling a system identification approach and a sensitivity analysis in the interpretation of the experimental test results on full-scale bearings carried out at the EUCENTRE TREES Lab of Pavia (Italy). The model is found suitable to represent the experimental response.

000009634 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009634 653__ $$aRubber bearings, analytical model, seismic isolation, experiments, shake table

000009634 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009634 720__ $$aCasarotti, Chiara$$iPavese, Alberto
000009634 8560_ $$ffischerc@itam.cas.cz
000009634 8564_ $$s927754$$uhttps://invenio.itam.cas.cz/record/9634/files/12-01-0221.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0221.
000009634 962__ $$r9324
000009634 980__ $$aPAPER