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SUMMARY:Quantifying and Controlling the Seismic Risk of Nonstructural Buil
 ding Components - Dimitrios Konstantinidis\, University of California\, Be
 rkeley
DTSTART:20211105T150000Z
DTEND:20211105T160000Z
UID:TALK166627@talks.cam.ac.uk
CONTACT:Mishael Nuh
DESCRIPTION:For nearly half a century the earthquake engineering community
  has mainly focused its efforts on developing earthquake-resistant structu
 ral systems\, with little attention paid to nonstructural building compone
 nts\, including mechanical and electrical equipment\, architectural elemen
 ts\, and furniture. As a result\, our seismic provisions for structural sy
 stems have evolved to a point where several recent earthquakes in countrie
 s with advanced seismic codes revealed that the economic losses and downti
 me associated with nonstructural damage exceeded those due to structural d
 amage. In fact\, in many cases the structural elements of buildings experi
 enced minimal damage\, but the buildings were deemed nonfunctional due to 
 nonstructural damage.\n\nDuring an earthquake\, nonstructural building com
 ponents\, such as equipment and other contents\, can vibrate\, shift\, roc
 k\, or overturn. Large accelerations in anchored equipment can result in f
 ailure\, and excessive displacements or overturning of large unanchored co
 ntents can injure building occupants or block egress routes. This presenta
 tion will provide an overview of recent experimental and analytical studie
 s aimed at quantifying the seismic response of nonstructural components. R
 esults will be presented from shake table tests on full- scale equipment s
 ubjected to earthquake shaking and from numerical simulations using develo
 ped analytical models of the equipment. Subsequently the presentation will
  explore the effectiveness of base isolation as a seismic mitigation techn
 ique for reducing the seismic risk of unanchored building contents.
LOCATION:Zoom (email structures-admin@eng.cam.ac.uk for link)
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