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SUMMARY:Seismic soil-structure interaction and the nonlinear response of s
 hallow foundations
DTSTART:20151218T121500
DTEND:20151218T131500
DTSTAMP:20260509T161127Z
UID:940a9f4381a30a0585ee8c910c70946aececb3f6337317c2bee787a1
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr António A. Correia\, Researcher at Earthquake Engineering 
 and Structural Dyanmics\, Portuguese National Laboratory for Civil Enginee
 ring (LNEC)\, Lisbon\, Portugal\nThe interaction between a superstructure\
 , its foundation and the supporting terrain may have a strong influence on
  the seismic response of structures. An overview of soil-structure interac
 tion (SSI) phenomena and effects in the linear elastic range will pave the
  way for a presentation of recent research work that contributes to clarif
 y the effects of nonlinear dynamic interaction on the seismic response of 
 soil-foundation-superstructure systems. Such work includes several experim
 ental results of seismically loaded structures on shallow foundations.\nTh
 eoretical advancements are also presented\, in relation to macro-element n
 umerical modelling of the soil-foundation system. These macro-element mode
 ls represent the nonlinear soil behaviour at near-field and the ground sub
 stratum dynamic characteristics at far-field\, as well as the interaction 
 with the seismic response of the structure. All aspects of elastic and ine
 lastic behaviour of the foundation system are thus encompassed into one co
 mputational entity and are described by the behaviour of a single point at
  the centre of the foundation.\nThese developments are then used for suppo
 rting the concept of a controlled share of ductility demand between the su
 perstructure and the foundation as a key ingredient for a rational and int
 egrated approach to seismic design of foundations and structures. This des
 ign methodology is briefly introduced and validated. Finally\, an applicat
 ion example to an outstanding structure is presented.\nBio : After graduat
 ing in Civil Engineering at the Technical Univ. of Lisbon\, Portugal\, Ant
 ónio A. Correia had a challenging experience as a professional engineer i
 n design companies and lecturer at different universities which led him to
  further specialize in both Structures and Geotechnics. This path eventual
 ly resulted in a PhD in Earthquake Engineering on the topic of SSI at the 
 UME School\, IUSS Pavia\, Italy.\nHe is currently a Researcher at the Eart
 hquake Engineering and Structural Dynamics Unit of the Portuguese National
  Laboratory for Civil Engineering (LNEC)\, where he conducts shake table t
 ests and structural vulnerability and risk studies\, alongside a continued
  activity on the development of advanced numerical models. He also serves 
 as Technical Secretary at Sub-Commission 8 (Eurocode 8) of Technical Commi
 ttee 250 (Structural Eurocodes) of the European Standardization Committee 
 (CEN/TC250/SC8).\nHis main expertise research and interests are in the fie
 lds of experimental assessment and numerical modelling of the seismic resp
 onse of structures\, as well as on seismic risk\, structural vulnerability
  and design code developments.
LOCATION:GC C3 30 http://plan.epfl.ch/?lang=fr&room=GCC330
STATUS:CONFIRMED
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