000021955 001__ 21955
000021955 005__ 20170622131314.0
000021955 04107 $$aeng
000021955 046__ $$k2017-06-15
000021955 100__ $$aFalamarz-Sheikhabadi, Mohammad Reza
000021955 24500 $$aEFFECT OF NUMERICAL SOIL-FOUNDATION-STRUCTURE MODELING ON THE SEISMIC RESPONSE OF A TALL BRIDGE PIER VIA PUSHOVER ANALYSIS

000021955 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021955 260__ $$bNational Technical University of Athens, 2017
000021955 506__ $$arestricted
000021955 520__ $$2eng$$a​In this study, the role of the numerical modeling of soil-foundation-structure (SFS) interaction on the seismic response of a tall, partially embedded, flared bridge pier is examined. For this purpose, static, pushover, nonlinear, finite-element, stand-alone analyses are performed on nine different models of one of the two piers of the Mogollon Rim Viaduct, a long-span, reinforced-concrete bridge supported on pile foundations. The impact of structural modeling considerations, such as concrete constitutive models, material properties, bond-slip and P-∆ effects, on the nonlinear response of this pier are investigated. p-y, t-z and Q-z nonlinear curves are applied to model the soil-pile interaction, and equivalent nonlinear springs are developed to reproduce the soil-pile cap interaction. In addition, the effects of the partial pier embedment and the slope of the ground surface on the lateral resistance of the pier and the total capacity of the SFS system are discussed. The results illustrate how structural and geotechnical modeling approaches for the SFS interaction can affect the nonlinear response of tall bridges, and may lead to differences in the numerical prediction of local or global failure. For the case analyzed

000021955 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021955 653__ $$aKeywords​:

000021955 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021955 720__ $$aFalamarz-Sheikhabadi, Mohammad Reza$$iZerva, Aspasia
000021955 8560_ $$ffischerc@itam.cas.cz
000021955 8564_ $$s108720$$uhttps://invenio.itam.cas.cz/record/21955/files/18452.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS06] Seismic assessment of bridges and resilience of transportation networks
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000021955 962__ $$r21500
000021955 980__ $$aPAPER