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SUMMARY:Development and Application of Hybrid Simulation for Seismic Testi
 ng of Large-scale Structural Systems
DTSTART:20181019T121500
DTEND:20181019T131500
DTSTAMP:20260511T072925Z
UID:428967984a2ddebd6e200ccc6d5f485788a5a6b57432df36f18d680a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Professor Dr Gilberto Mosqueda\, Professor of Structural Engin
 eering\, University of California\, San Diego\, USA\nHybrid simulation com
 bining physical and numerical simulations provides a cost-effective means 
 to experimentally examine the performance of large-scale structural system
 s under extreme loading events. It can be particularly beneficial to inves
 tigate the behavior of large scale structures subjected to seismic loads t
 hrough collapse given that shake table tests pose significant risk to supp
 ort a collapsing structure.  To examine the reliability of the test metho
 d\, hybrid simulation is first applied to a steel moment frame that has be
 en the subject of previous collapse studies including shake table testing\
 , extensive quasi-static component testing and numerical simulations. Thes
 e past studies provide the benchmark data for verification and examining s
 ources of errors in hybrid simulation. After developing reliable approache
 s to the test method\, two series of hybrid simulations are presented that
  aim to trace the system-level seismic response of a four-story steel mome
 nt frame building structure through collapse. The experimental substructur
 es include a half-scale 1½-bay by 1½-story physical substructure of a sp
 ecial steel moment-resisting frame and the physical substructure correspon
 ding to the gravity framing system. The hybrid simulation test method is s
 hown to be reliable and can provide insight into experimental behavior of 
 structural subassemblies under realistic seismic loading given that errors
  are properly mitigated. Other large-scale applications of hybrid simulati
 on will be discussed including testing of seismic isolation bearings in nu
 clear powerplants.\n\nBio : Gilberto Mosqueda is a professor in the Depart
 ment Structural Engineering at the University at California San Diego sinc
 e 2012.  Previously\, he was on the faculty at the University at Buffalo 
 since 2004. He received his Ph.D. (2003) from the University of California
  at Berkeley\, M.S (1998) from Massachusetts Institute of Technology\, and
  B.S. (1996) from the University of California at Irvine all in civil engi
 neering.  He received the NSF CAREER award in 2008 and is currently on th
 e editorial board for the journal Earthquake Spectra. The focus of his res
 earch is in the area of structural and earthquake engineering\, particular
 ly on understanding and improving the seismic performance of structural an
 d nonstructural systems under seismic loads. Recent research has examined 
 the seismic response of structural systems under extreme loads including t
 he collapse of steel structures and limit states in seismic isolation syst
 em using hybrid simulation. He has over 100 publications in peer reviewed 
 journals and conference proceedings and has led and participated in variou
 s reconnaissance mission following earthquakes around the world.  Most re
 cently he co-led the team organized by the Earthquake Engineering Research
  Institute to investigate damage from the 2017 Puebla-Morelos Earthquake i
 n Mexico.
LOCATION:GC B1 10 https://plan.epfl.ch/?room=GCB110
STATUS:CONFIRMED
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