000015570 001__ 15570
000015570 005__ 20161115135323.0
000015570 04107 $$aeng
000015570 046__ $$k2013-06-12
000015570 100__ $$aVassiliou, M.
000015570 24500 $$aRocking Response of Slender, Flexible Columns Under Pulse Excitation

000015570 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015570 260__ $$bNational Technical University of Athens, 2013
000015570 506__ $$arestricted
000015570 520__ $$2eng$$aEarly studies of the response of rigid blocks allowed to uplift and rock under seismic motion have shown a scale effect that characterizes the response of rocking blocks subjected to a ground motion. Namely; larger objects need a larger ground acceleration to overturn; and longer dominant period earthquakes have a larger overturning capability than shorter period ones. This is why it has been proposed that rocking can be used as an isolation strategy. However, actual structures are not rigid: structural elements where rocking is expected to occur are often slender and flexible. Modeling rocking of flexible bodies is a challenging task. A finite element model of a rocking elastic body that does not involve explicit modeling of impact is presented in this paper. This model was validated by comparing its response to pulse excitation with an analytical solution. It is concluded that the extensively studied rigid rocking block model provides a good approximation of the seismic response of an elastic rocking column for small-size columns and that it provides a conservative response estimate for larger columns. Guidance for development of rocking column models in ordinary finite element software is provided.

000015570 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015570 653__ $$aRocking, Earthquake Engineering, Seismic Isolation

000015570 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015570 720__ $$aVassiliou, M.$$iMackie, K.$$iStojadinovic, B.
000015570 8560_ $$ffischerc@itam.cas.cz
000015570 8564_ $$s573143$$uhttps://invenio.itam.cas.cz/record/15570/files/1084.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 40 STRUCTURAL DYNAMICS AND EARTHQUAKE ENGINEERING OF ROCKING STRUCTURES
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000015570 962__ $$r15525
000015570 980__ $$aPAPER