000013554 001__ 13554
000013554 005__ 20161114165846.0
000013554 04107 $$aeng
000013554 046__ $$k2011-05-25
000013554 100__ $$aFriedl, H.
000013554 24500 $$aSeismic Assessment of Concrete Tanks Considering Fluid Structure Interaction and Nonlinear Time History Analysis

000013554 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013554 260__ $$bNational Technical University of Athens, 2011
000013554 506__ $$arestricted
000013554 520__ $$2eng$$aSeismic assessment of important existing structures what are designed according to prior seismic codes or even without considering any earthquake load is one of the most important issues for minimizing the seismic vulnerability. Within this work the seismic assessment of an existing building for radioactive waste management is presented. The investigated structure is designed as a water treatment plant consisting of six collecting tanks situated in a height of 4m and is supported by eight RC columns. The building is located in the area with the highest earthquake hazard in Austria. The main goal was to analyse the whole structure under dynamic excitation during an earthquake event and in case of overloading to give recommendations for possible retrofitting solutions. An improved method for the elaboration of precise structural models is presented, which combine dynamic in-situ measurements and FEanalysis. With dynamic in-situ tests under forced excitation by usage of a reaction mass exciter, the dynamic behaviour of the structures was determined. That followed a model updating procedure to increase the reliability of the numerical investigations. The main life loads of the building are the tanks filled with water. For consideration the fluid structure interaction (FSI) during dynamic excitation an approach with usage of adequate solid elements was implemented in the structural model. In order to assess the accuracy of the chosen approach and updated finite element model, linear spectrum analysis and time history analysis were carried out. In the parametric study, the influence of a number of parameters concerning earthquake and structural characteristics on the structural responses, especially the filling level of the collecting tanks, were investigated. For the nonlinear dynamic analysis a set of different artificial time-histories, which were generated fitting to the EC8 response, were used.

000013554 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013554 653__ $$aSeismic assessment, fluid structure interaction, model updating, time history analysis.

000013554 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013554 720__ $$aFriedl, H.$$iKwapisz, M.$$iLechner, A.$$iFlesch, R.
000013554 8560_ $$ffischerc@itam.cas.cz
000013554 8564_ $$s615110$$uhttps://invenio.itam.cas.cz/record/13554/files/278.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 26 Seismic Safety Assessment of Structures.
000013554 962__ $$r13401
000013554 980__ $$aPAPER