000015765 001__ 15765
000015765 005__ 20161115135329.0
000015765 04107 $$aeng
000015765 046__ $$k2013-06-12
000015765 100__ $$aFiore, A.
000015765 24500 $$aEffect of Pounding on the Seismic Response of Two Adjacent Asymmetric Buildings Under Single Uni-Directional Ground Motion

000015765 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015765 260__ $$bNational Technical University of Athens, 2013
000015765 506__ $$arestricted
000015765 520__ $$2eng$$aThe aim of this paper is to present a detailed analytical study able to simulate the earthquake induced lateral-torsional pounding between two multi-storey adjacent buildings with different dynamic properties. Coupled lateral-torsional pounding between asymmetric structures has been investigated only in the last decades, but always with reference to impact between two single-storey structures, while most of the existing buildings are of course multi-storey. Moreover in many cases contact is modelled by linear impact elements, while contrarily pounding models utilizing the non-linear Hertz contact law appear to be more realistic, earthquake poundings being highly non-linear phenomena. For this reason in the proposed model both a non-linear viscoelastic model to simulate impact and a non-linear behaviour of the storey shear forces and torques are considered, differently from many commercial codes which admit just one non-linearity. Torsional effects are taken into account by implementing all the possible impact scenarios, depending on the sign of the rotations of two adjacent floor-diaphragms. Moreover it is assumed that, at each storey-level, pounding occurs when a corner of one building impacts onto an arbitrary point of the other building. Just single uni-directional earthquake ground motion is incorporated in the analysis. As a consequence pounding-induced response is evaluated exclusively in the seismic direction, also due to the small values of rotations involved in the analysis. The results show the significance of coupled lateral-torsional pounding responses on adjacent structures. Torsional vibrations of both structures are important components of the overall structural response and mainly influence the number of impacts.

000015765 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015765 653__ $$alateral-torsional pounding; two adjacent buildings; asymmetric buildings; nonlinear behaviour; uni-directional seismic action; numerical analysis.

000015765 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015765 720__ $$aFiore, A.$$iMarano, G.
000015765 8560_ $$ffischerc@itam.cas.cz
000015765 8564_ $$s199649$$uhttps://invenio.itam.cas.cz/record/15765/files/1417.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 13 NUMERICAL METHODS FOR LINEAR AND NONLINEAR DYNAMICS
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000015765 962__ $$r15525
000015765 980__ $$aPAPER