000021851 001__ 21851
000021851 005__ 20170622131308.0
000021851 04107 $$aeng
000021851 046__ $$k2017-06-15
000021851 100__ $$aKorndörfer, Jonas
000021851 24500 $$aSEISMIC FRAGILITY OF HORIZONTAL PRESSURE VESSELS - EFFECTS OF STRUCTURAL INTERACTION BETWEEN INDUSTRIAL COMPONENTS

000021851 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021851 260__ $$bNational Technical University of Athens, 2017
000021851 506__ $$arestricted
000021851 520__ $$2eng$$aThe European project “INDUSE-2-SAFETY” aims at the development of a quantitative risk assessment methodology for seismic loss prevention of “special risk” petrochemical plants and components. To demonstrate the capabilities of this approach, a representative case study plant containing standard components is subjected to detailed investigation. Probabilistic seismic demand models are used to establish a relation between seismic demand and structural performance of the components with respect to relevant limit states. The resulting fragility curves are required as an input to the quantitative risk model. The case study comprises of a LNG regasification plant which contains various components with extreme variability in structural and dynamic characteristics. Due to process flow related requirements, all of these components are interconnected by an extensive pipe network. In case of an earthquake, these interconnections may cause significant structural interaction effects. The influence of the coupling is hard to predict and thus often neglected or estimated inappropriately in a common structural design of a single plant component. Within this paper, the effects of structural interaction are assessed rigorously for a small part of the LNG plant using finite element methods. The subplant considered for this analysis consists of a horizontal pressure vessel, connected pipes and respective supporting structures. Twenty-six natural seismic records are selected with respect to uniform site hazard spectra for three different return periods to account for a wide variability of earthquake characteristics such as magnitude, fault distance and wave content are considered in the analysis. Cloud analysis is employed to perform the probabilistic seismic demand analysis which yields the fragility of the horizontal pressure vessel. Besides the variability of the seismic input, the liquid filling level of the vessel as well as the direction of ground motion have been considered as additional sources of uncertainty.

000021851 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021851 653__ $$afragility surface, horizontal pressure vessel, cloud analysis, coupled systems, simplified model

000021851 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021851 720__ $$aKorndörfer, Jonas$$iFeldmann, Markus$$iHoffmeister, Benno
000021851 8560_ $$ffischerc@itam.cas.cz
000021851 8564_ $$s1209219$$uhttp://invenio.itam.cas.cz/record/21851/files/18148.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS33] WORKSHOP on Fragility Evaluation and Seismic Safety Assessment of “Special Risk” Industrial Plants (INDUSE-2-SAFETY)
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000021851 962__ $$r21500
000021851 980__ $$aPAPER