InfographiconPost-

EarthquakeFunctionalRecoveryPerformance

KatherineJ.Johnson,

SiamakSattar,DustinCook,SandeshAher

MaterialsandStructuralSystemsDivision

EarthquakeEngineeringGroup

NISTResearchBriefNISTRB4

December2024

ResearchSummary

IntheU.S.,buildingcodesandstandardshavebeendevelopedtoreducethelikelihoodofbuildingcollapsebutdonotaddressthelossofbuildingfunctionsorrecoverytimesduetoearthquakes.Whenscaledtothecommunitylevel,negativeconsequences,suchaslackofaccesstojobsandschoolsand,ultimately,populationdisplacement,may

occur.Buildingsandinfrastructuresystemscanbeimprovedtobettermeettheneedsofusersandoccupantsafternaturalhazardevents.Theseneedsincludetheabilityto

reoccupyandresumefunctionsandservicesacrosstheassetsthatmostbenefitsociety.

Researchinearthquakeengineeringandsocialsciencehasadvancedanew

performanceobjectivecalledfunctionalrecoverythatsupportsthedesignofassetstomeetneedsbeyondwhatiscurrentlyrequiredbycodesandstandards.Implementationoffunctionalrecoverydesignwillenablebuildingsandinfrastructuresystemstosustainlessdamageinearthquakeeventsandreturntoabasiclevelofservicemorequickly,

reducingdowntimeforkeysocietalactivitiesaswellasdirectandindirectcostsofdamages,repairs,ordemolition.

ResearchAdvancementDetails

FunctionalrecoverywasformallydefinedintheNIST-FEMAReporttoCongress(NISTSP1254)tofurtheradvanceongoingworkintheearthquakeandcommunityresilience

fields.Subjectmatterexperts(NISTSP1269)areprovidinginputondeveloping

maximumacceptablerecoverytimetargets.Functionalrecoverytargetsthecapacitytosupporttherecoveryofbasicintendedfunctionsorservices,whicharetypicallyless

thanfullpre-eventfunctionality.

Committeesarecurrentlydraftingprovisionsforcodesandstandardstoenableassetstoavoidmoderatetoseveredamageandlongrecoverytimeswhich,inturn,would

improvecommunityresilience.Althoughfunctionalrecoveryconceptsanddesign

recommendationsarecurrentlybeingdevelopedforearthquakehazards,thefindingscanbeleveragedforapplicationtoothernaturalhazardsinthefuture.

Thispublicationisavailablefreeofchargefrom:

/10.6028/NIST.RB.4

Avoidingdamageandcostlyorlengthyrepairsfromnaturalhazardscanprovide

significantsocietalbenefitstothepublic.Theinfographicbelowhelpstoillustratethe

improvedrecoverytrajectorybetweencurrentdesignpracticeandthenewfunctional

recoveryperformanceobjectiveunderdevelopmentforbuildings.Thisinfographic

demonstratesthatafteranearthquakeevent,functionalrecoverydesignenablesuserstomorequicklyreoccupy,repair,andresumeabuilding’sbasicfunctionsandservicesascomparedtocurrentcode(lifesafety)design.ThisimagewascreatedforNISTbyAher

StructuralGraphics,LLCandislicensedunderaCreativeCommonsAttribution4.0

InternationalLicense.Animagefilecanalsobedownloadedat:

/nistpubs/rb/NIST.RB.4-infographic.png.

FunctionalRecoveryPerformanceComparedtoLifeSafetyDesign

InfographiconPost-

EarthquakeFunctionalRecoveryPerformance

KatherineJ.Johnson,

SiamakSattar,DustinCook,SandeshAher

MaterialsandStructuralSystemsDivision

EarthquakeEngineeringGroup

NISTResearchBriefNISTRB4

December2024

Certainequipment,instruments,software,ormaterials,commercialornon-commercial,maybe

identifiedinthispapertospecifytheexperimentalprocedureadequately.SuchidentificationdoesnotimplyrecommendationorendorsementofanyproductorservicebyNIST,nordoesitimplythatthe

materialsorequipmentidentifiedarenecessarilythebestavailableforthepurpose.

NISTTechnicalSeriesPolicies

Copyright,Use,andLicensingStatements

NISTTechnicalSeriesPublicationIdentifierSyntax

PublicationHistory

ApprovedbytheNISTEditorialReviewBoardon2024-12-23

HowtoCitethisNISTTechnicalSeriesPublication

JohnsonKJ,SattarS,CookD,AherS(2024)InfographiconPost-EarthquakeFunctionalRecoveryPerformance.(NationalInstituteofStandardsandTechnology,Gaithersburg,MD),NISTRB4.

/10.6028/NIST

.RB.4

AuthorORCIDiDs

KatherineJ.Johnson:0000-0001-7199-8750

SiamakSattar:0000-0003-1096-7015DustinCook:0000-0002-4841-4515

SandeshAher:0009-0005-8697-1936

ContactInformation

katherine.johnson@

U.S.DepartmentofCommerce

GinaM.Raimondo,Secretary

NationalInstituteofStandardsandTechnology

CharlesH.Romine,perf