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SUMMARY:Seismic behaviour of structures with basements in liquefiable soil
  - Dr Fiona Hughes\, Graduate Geotechnical Engineer at Arup
DTSTART:20201105T160000Z
DTEND:20201105T164500Z
UID:TALK151561@talks.cam.ac.uk
CONTACT:Magdalena Charytoniuk
DESCRIPTION:Earthquake induced liquefaction can cause significant damage i
 n the built environment. The reduction in stiffness and strength of soil d
 uring earthquake induced liquefaction can cause structures on shallow foun
 dations to suffer large settlement and rotation\, and light buried structu
 res to uplift. The performance of structures with basements\, which intuit
 ively combines these two problems\, is not understood. \n\nA series of hig
 hly instrumented dynamic centrifuge tests were conducted to investigate th
 e novel idea of using basement storeys to reduce liquefaction induced sett
 lement of structures in earthquakes. This seminar will present the seismic
  behaviour of structures with basements observed in these tests\, with foc
 us on the effect of soil-structure interaction on structure stability\, se
 ttlement\, rotation\, and isolation. In addition\, data from an in-flight\
 , miniature CPT device will be presented alongside soil displacements obta
 ined from digital image correlation to provide insight into the effect of 
 soil-structure interaction on the change in cone resistance before and aft
 er a sequence of earthquakes.\n
LOCATION:Delivered online via Zoom
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