000013760 001__ 13760
000013760 005__ 20161114170254.0
000013760 04107 $$aeng
000013760 046__ $$k2011-05-25
000013760 100__ $$aDimakopoulou, V.
000013760 24500 $$aSeismic Response Amplification Due to Near-Field Ground Motions

000013760 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013760 260__ $$bNational Technical University of Athens, 2011
000013760 506__ $$arestricted
000013760 520__ $$2eng$$aThe effect of rupture directivity at near-fault sites is investigated. The study compares the ratio of maximum inelastic to maximum elastic displacement demand, CR, for a wide range of SDOF systems subjected to fault-normal, near-field ground motions. Oscillators with both bilinear and quadrilinear backbones are considered. The quadrilinear oscillators include an elastic, a hardening and a negative stiffness branch that terminates at a horizontal plateau, and therefore this modelling is more suitable for simulating the real-world buildings, which degrade. A sensitivity analysis of the parameters that describe the SDOF systems is performed in order to study their effect on CR. It is demonstrated how the seismic response varies with respect to the backbone parameters, the period and the seismic demand. The results show that the bilinear approximation, which is the common, underestimates the ductility demand compared to the quadrilinear case, regardless of the seismic intensity and the backbone parameters.

000013760 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013760 653__ $$aNear-Fault Ground Motions, Near-Source Effect, Forward Directivity, Single-degree-of-freedom Oscillators, Inelastic Displacement Ratio.

000013760 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013760 720__ $$aDimakopoulou, V.$$iFragiadakis, M.$$iSpyrakos, C.
000013760 8560_ $$ffischerc@itam.cas.cz
000013760 8564_ $$s809851$$uhttps://invenio.itam.cas.cz/record/13760/files/636.pdf$$yOriginal version of the author's contribution as presented on CD, section: RS 15 Design Methods Under Dynamic and Seismic Action .
000013760 962__ $$r13401
000013760 980__ $$aPAPER