000019796 001__ 19796
000019796 005__ 20170118182337.0
000019796 04107 $$aeng
000019796 046__ $$k2017-01-09
000019796 100__ $$aHamaguchi, Hiroki
000019796 24500 $$aFailure of Double Friction Pendulum Bearing Under Pulse Excitations

000019796 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019796 260__ $$b
000019796 506__ $$arestricted
000019796 520__ $$2eng$$aAlthough the global behavior of double friction pendulum bearings (DFP) has been widely studied, the failure behavior has not been significantly investigated. Understanding how and if the bearing will fail is important for both capacity based design and performance based design concepts. To look into failure, a model based on the theory of rigid body kinematics, rigid body dynamics and contact mechanics is employed with an added parallel non-linear damper with Hertz’s contact law to explicitly consider the energy dissipation. Analytical Ricker pulses, including symmetric and antisymmetric Ricker pulses are selected as input excitations. For each combination of pulse amplitude and period, there are three possible outcomes for the bearing: no impact in which the bearing does not reach its maximum displacement, impact without failure in which the bearing reaches its maximum displacement limit but continues to function, and failure. These responses can be represented on an impact region spectrum, which shows that the responses tend to be continuous. The impact region spectrum can be directly used to determine the final status of the bearing when it is subjected to a Ricker pulse with specific amplitude and period. For design, Ricker pulse parameters can be extracted from site-specific pulse-type ground motions to predict the performance of the structure. However, the shape of the impact region spectrum can be influenced by different design parameters of the DFP, including radius of curvature, friction coefficient, restrainer height etc. Their influences on the shape of the impact region spectrum are investigated.

000019796 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019796 653__ $$aseismic isolation; double friction pendulum bearing; impact simulation; pulse excitation; failure.

000019796 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019796 720__ $$aHamaguchi, Hiroki$$iBecker, Tracy$$iBao, Yu
000019796 8560_ $$ffischerc@itam.cas.cz
000019796 8564_ $$s561456$$uhttps://invenio.itam.cas.cz/record/19796/files/443.pdf$$yOriginal version of the author's contribution as presented on USB, paper 443.
000019796 962__ $$r16048
000019796 980__ $$aPAPER