000013124 001__ 13124
000013124 005__ 20161114160328.0
000013124 04107 $$aeng
000013124 046__ $$k2009-06-22
000013124 100__ $$aPolycarpou, P.
000013124 24500 $$aSimulating the use of rubber shock absorbers for mitigating poundings of seismically isolated buildings during strong earthquakes

000013124 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013124 260__ $$bNational Technical University of Athens, 2009
000013124 506__ $$arestricted
000013124 520__ $$2eng$$aThis paper focuses on the simulation of the use of rubber shock absorbers that can be used as an impact mitigation measure for potential earthquake induced poundings of seismically isolated buildings. In particular, layers of soft material can be incorporated at locations where it is likely to have impacts during a very strong earthquake, in order to avoid the sudden application of large impact forces and to absorb some of the impact energy. For the simulation of the dynamic behavior of such rubber bumpers during impacts, a non-linearexponential force-based impact model has been developed, based on the kinetic energy loss due to impact. The accuracy of the proposed impact model is assessed by comparing the loaddisplacement curves from the numerical simulations with those obtained from relevant experiments that were conducted by other researchers. Finally, some representative results from simulations of seismically isolated buildings pounding against adjacent structures during earthquake excitations are presented, in order to show the effectiveness of using rubber bumpers as impact mitigation measure.

000013124 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013124 653__ $$aPoundings, Shock absorbers, Bumpers, Impact, Seismic isolation, Seismic gap. Abstract. This paper focuses on the simulation of the use of rubber shock absorbers that can be used as an impact mitigation measure for potential earthquake induced poundings of seismically isolated buildings. In particular, layers of soft material can be incorporated at locations where it is likely to have impacts during a very strong earthquake, in order to avoid the sudden application of large impact forces and to absorb some of the impact energy. For the simulation of the dynamic behavior of such rubber bumpers during impacts, a non-linearexponential force-based impact model has been developed, based on the kinetic energy loss due to impact. The accuracy of the proposed impact model is assessed by comparing the loaddisplacement curves from the numerical simulations with those obtained from relevant experiments that were conducted by other researchers. Finally, some representative results from simulations of seismically isolated buildings pounding against adjacent structures during earthquake excitations are presented, in order to show the effectiveness of using rubber bumpers as impact mitigation measure.

000013124 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013124 720__ $$aPolycarpou, P.$$iKomodromos, P.
000013124 8560_ $$ffischerc@itam.cas.cz
000013124 8564_ $$s210733$$uhttps://invenio.itam.cas.cz/record/13124/files/CD169.pdf$$yOriginal version of the author's contribution as presented on CD, section: Seismic isolation - i.
000013124 962__ $$r13074
000013124 980__ $$aPAPER