What is Seismic retrofit?
'''Seismic retrofitting''' is the modification of [[building]]s that already exist to make them resistant to [[earthquake]]s.<ref>{{Cite web |url=http://nisee.berkeley.edu/bertero/html/earthquake-resistant_construction.html |title=Earthquake-Resistant Construction |access-date=2010-03-26 |archive-date=2012-09-15 |archive-url=https://web.archive.org/web/20120915091405/http://nisee.berkeley.edu/bertero/html/earthquake-resistant_construction.html |url-status=dead }}</ref> Seismic retrofitting techniques can be applied to other kinds of [[natural disaster]]s such as [[tornado]]es and strong [[wind]]s from [[thunderstorm]]s.[[File:Municipal Services Building.jpg|thumb|220px|Municipal Services Building in [[Glendale, California]] retrofitted with [[base isolation]].]] == Seismic retrofit performance objectives == Main levels of retrofitted [[building|building structure]] performance <ref>[https://central.nees.org/data/get/NEES-2009-0733/Public/EPETO%20%40%20NEES.pdf Earthquake Performance Evaluation Tool Online (EPETO)]{{Dead link|date=January 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> objectives may vary, namely: * To protect human lives. * To protect a structure from total failure. * To preserve a structure's functionality after a strong earthquake. * To make a structure, practically, unaffected by any earthquake. == References == {{reflist|2}} {{Earthquake engineering}} [[Category:Earthquake engineering]] {{stub}}