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SUMMARY:European Seismic Design Codes for Concrete Structures: Past\, Pres
 ent\, Future
DTSTART:20131121T161500
DTEND:20131121T171500
DTSTAMP:20260509T234537Z
UID:4ec1a319afbd3690d5c6a0cc8862c7a5a8b15875b19aa9029af77fa0
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Michael N. Fardis\nSince the 1990s European Earthquake E
 ngineering has focused on the development of a European Standard for seism
 ic design\, Eurocode 8. The "Seismic Annex" to the CEB/FIP Model Code 1978
  was the basis for the Pre-Standard version of Eurocode 8 in the early 199
 0s and of the European Standard (EN) one decade later. In those codes\, de
 sign was force-based for two Limit States: Life Safety and Damage Limitati
 on. The reduction factor applied to the 5%-damped elastic spectrum for Lif
 e Safety depends on the choice of Ductility Class: Low\, Medium or High. T
 he two upper Classes employed prescriptive detailing and capacity design f
 or a global and local ductility factor commensurate to the reduction facto
 r. The EN-Eurocode 8 gives a mechanics-based link between the reduction fa
 ctor and the curvature ductility factor for detailing plastic hinges and a
 pplies capacity design to prevent shear failures and keep the foundation e
 lastic. It promotes rigorous seismic analysis over equivalent lateral forc
 e methods and allows design of new buildings with nonlinear analysis and d
 irect verification of flexural deformation demands against capacities. For
  the evaluation and retrofitting of buildings EN-Eurocode 8\, uses a full-
 fledged performance- and displacement-based approach with nonlinear analys
 is (sometimes simplified into linear with the 5%-damped spectrum for the d
 eformations and equilibrium for the forces) and gives expressions for the 
 flexure- or shear-controlled rotation capacity of plastic hinges and for t
 he secant-to-yield-point stiffness of members. In the forthcoming revision
  of EN-Eurocode 8 this approach may also be adopted for the design of new 
 structures. Moreover\, current gaps in Eurocode 8 are expected to be fille
 d: the scope will be extended to cover flat-slab frames\, design/verificat
 ion of masonry infills as part of the lateral-load resisting system\, seis
 mic assessment and retrofitting of existing bridges\, etc. Support for the
  evolution to the second generation of EN-Eurocode 8 will be provided by t
 he fib Model Code 2010 for new structures\, which employs four Performance
  Levels and nonlinear dynamic analysis as the reference method. This evolu
 tion will be governed by the overriding consideration for all Eurocodes in
  the second generation toward improvement of ease of use in practice\, sim
 plification and consolidation.\nBio: Michael Fardis is Professor and Direc
 tor of Structures Laboratory\, Civil Engineering Department\, University o
 f Patras\, Greece. He is Honorary President of the International Federatio
 n for Structural Concrete (fib)\, having served as its President in 2009-1
 0. He holds MSc degrees in Civil Engineering (1977) and Nuclear Engineerin
 g (1978) and a PhD in Structural Engineering (1979)\, all from the Massach
 usetts Institute of Technology (MIT)\, where he taught to the rank of Asso
 ciate Professor in Civil Engineering. He is Vice Chairman of CEN/TC250: "S
 tructural Eurocodes" (2013016) and Director\, International Association of
  Earthquake Engineering (2012-2016).\nAs chairman of CEN/TC250/SC8: Euroco
 de 8: "Design of Structures for Earthquake Resistance" (1999-2005)\, he le
 d the development of its six parts into European Standards. He has over 20
 0 papers in international journals or conference proceedings (among them\,
  23 invited lectures) and several books. He coordinated several multi-mill
 ion European Union’s research projects. He received the 1993 Wason Medal
  of the American Concrete Institute for the best paper in materials
LOCATION:GC D0386 http://plan.epfl.ch/?room=GC%20D0%20386
STATUS:CONFIRMED
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