What is Elevated building foundation?
{{main|Earthquake engineering}} [[File:Municipal Services Building-3s.jpg|thumb|Bottom view of the Municipal Services Building <ref>{{Cite web |title=Municipal Services Building of Glendale |url=http://www.ci.glendale.ca.us/planning/MSB%20EIR/AppendixB.pdf |access-date=2010-03-29 |archive-date=2011-07-17 |archive-url=https://web.archive.org/web/20110717013428/http://www.ci.glendale.ca.us/planning/MSB%20EIR/AppendixB.pdf |url-status=dead }}</ref> sitting on abutments of its elevated building foundation, City of Glendale, CA]] '''Elevated building foundation''' (EBF) is a kind of seismic [[base isolation]] technology which is made a major part of a building superstructure.<ref>{{Cite web |url=http://www.ecs.csun.edu/~shustov/CME-C19.html |title=Elevated Foundation for Earthquake Protection of Building Structures |access-date=2010-03-29 |archive-date=2009-06-03 |archive-url=https://web.archive.org/web/20090603001115/http://www.ecs.csun.edu/~shustov/CME-C19.html |url-status=dead }}</ref> It is made to protect the building's superstructure against damage from the shaking caused by an [[earthquake]]. [[File:Municipal Services Building.jpg|thumb|left|[[w:en:Seismic retrofit|Seismically retrofitted]] Municipal Services Building in Glendale, CA]] This goal can be met with the right building materials, size, and setup of elevated building foundation for the building site and local [[soil]] conditions. As a result of multiple wave [[reflection]]s and diffractions, as well as energy [[dissipation]] of the seismic waves as they move up through the elevated building foundation, any movement of seismic wave energy into the building superstructure will be decreased, which will lower [[seismic load]]s and improve [[seismic performance]] of the structure.<ref>[https://central.nees.org/data/get/NEES-2006-0283/Public/EBF%20and%20EP.pdf Elevated Building Foundation and Earthquake protector: new features in passive structural control.]{{Dead link|date=January 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> In other words,