Reliability and Optimization of Structural Systems: Proceedings of the 10th Ifip Wg7.5 Working Conference, Osaka, Japan, 25-27 March 2002

276 Pages·2018·15.986 MB·English

by  Dogaki, M., Furuta, Hitoshi, Sakano, M

RELIABILITYANDOPTIMIZATIONOFSTRUCTURALSYSTEMS

PROCEEDINGS OF THE 10TH IFIP WG7.5 WORKING CONFERENCE ON RELIABILITY AND
OPTIMIZATIONOFSTRUCTURALSYSTEMS,OSAKA,JAPAN,25–27MARCH2002
Reliability and Optimization of
Structural Systems
Editedby
H. Furuta
DepartmentofInformatics,KansaiUniversity,Osaka,Japan
M. Dogaki
DepartmentofCivilEngineering,KansaiUniversity,Osaka,Japan
M. Sakano
DepartmentofCivilEngineering,KansaiUniversity,Osaka,Japan
A.A.BALKEMAPUBLISHERS LISSE/ABINGDON/EXTON(PA)/TOKYO
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ISBN9058095533
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ReliabilityandOptimizationofStructuralSystems,Furutaetal.(eds)
©2003Swets&Zeitlinger,Lisse,ISBN9058095533
Table of Contents
Preface VII
H.Furuta
Calibrationofthedesigncodeforconcretestructures 1
A.S.Nowak&M.M.Szerszen
Bayesiancalibrationoffailureprobabilityfromobservedperformance 11
W.H.Tang&R.W.M.Cheung
Elasticbodieswithrandomdistributionofmicro-cracks 19
G.Augusti,M.Gioffrè,P.M.Mariano&F.L.Stazi
Reliabilityandoptimumdesignoffiber-reinforcedcompositematerialsystemsandstructures 35
Y.Murotsu&N.Kogiso
Reliability-basedoptimizationofsymmetriclaminatedcompositeplateusinglaminationparameters 49
N.Kogiso,S.Nakagawa&Y.Murotsu
Effectofmaterialqualityontheperformanceofconcretebridges 59
M.Kaszynska&A.S.Nowak
Bridgemanagementsystemforexistingbridgegroups 69
A.Miyamoto,K.Kawamura&K.C.G.Ong
Weibullpolynomialmodelforprobabilisticloadanalysis 79
M.D.Pandey
Probabilisticinvestigationonimpactfactorofdeckslabsduetotruckconfigurationtype 87
C.W.Kim&M.Kawatani
Reliabilitymodelforgirderbridgestructuralsystems 95
C.D.Eamon&A.S.Nowak
DynamicsystemsunderrandomimpulsesdrivenbyageneralizedErlangrenewalprocess 103
R.Iwankiewicz
Reliabilityoflow-risebuildings:experimentalwindloadmodelingvs.buildingcodes 111
M.Gioffrè,A.Grazini&V.Gusella
Managingstructuralfailuremodedependence 123
J.J.Chambers
Statisticalanalysisofdatafortimberstrengths 131
J.D.Sørensen
Web-basedsafetymanagementsysteminconstructionofpre-stressedconcretebridges 141
M.Hirokane,A.Miyamoto,H.Konishi&J.Zhang
Stochasticmodellingofthediffusioncoefficientforconcrete 151
P.Thoft-Christensen
Seismicresponsecharacteristicsofseismicallyisolatedbridgeconsideringhardening
effectofseismicisolator 161
Y.Adachi&S.Unjoh
V
Loadfactorofearthquakeloadconsideringnon-linearbehaviorofsteelbridge-pier 173
M.Kawatani,K.Kawaguchi&M.Tsujii
Evaluationofseismicresistantperformanceforsteelrigid-framepiersofhighwaybridges
withconsideringdynamicresponsecharacteristics 181
W.Shiraki,H.Inomo,H.Goto,H.Koshida&M.Dogaki
Reliability-basedoptimizationofspatialshelltrussesundermulti-loadingconditions 189
S.Jendo&K.Kolanek
Developmentofalgorithmstoidentifynon-stationarystructuralsystemsusingstatisticalfiltertheories 197
T.Sato,T.Sakanoue&I.Yoshida
Maintenancesupportsystemofsteelbridgesbasedonlifecyclecostandperformanceevaluation 205
H.Furuta,I.Tsukiyama,M.Dogaki&D.M.Frangopol
Failurediagnosisofwatersupplynetworkbyimmunesystem 215
H.Inomo,W.Shiraki,Y.Imai&H.Kanamaru
Isthereliabilityofsuspensionbridgetoohigh? 221
K.Imai&D.M.Frangopol
Measurementofhumanfunctiontoperceptiveinformation–Atrialbythe
approachofcognitiveneuroscience 229
H.Nakayasu,K.Yamanaka&K.Maeda
BayesianframeworkforPoissonmixtures 241
M.A.Maes
Timeaspectsinapplyingthelifequalityindextostructuralsafety 249
R.Rackwitz
Highwayvariableamplitudelongtermfatiguebehaviourofsteelgirderswithweldedattachments 259
M.Sakano
Authorindex 267
VI
ReliabilityandOptimizationofStructuralSystems,Furutaetal.(eds)
©2003Swets&Zeitlinger,Lisse,ISBN9058095533
Preface
Thisvolumecontains28papersincluding4keynotepaperspresentedatthe10thIFIPWG7.5WorkingConference
on RELIABILITYAND OPTIMIZATION OF STRUCTURAL SYSTEMS held in Osaka, Japan, on March
25–27, 2002. TheWorking Conference was organized by the IFIP (International Federation for Information
Processing)WorkingGroup7.5ofTC-7(TechnicalCommitteeonModelingandOptimization).
The purpose of the Working Group is to promote modern structural system reliability and optimization
theory,toadvanceinternationalco-operationinthefieldofstructuralsystemreliabilityandoptimizationtheory,
tostimulateresearch,developmentandapplicationofstructuralsystemreliabilityandoptimizationtheory,to
furtherthedisseminationandexchangeforinformationonreliabilityandoptimizationofstructuralsystems,
andtoencourageeducationinstructuralsystemreliabilityandoptimizationtheory.
TheFirstIFIPWG7.5WorkingConferencewasheldatAalborg,Denmark,in1987.TheSecondIFIPWG7.5
Working Conference was in London, UK, Sept. 26–28, 1988. Third Working Conference was in Berkeley,
California, USA, March 26–27, 1990. The Fourth one was held in Munich, Germany, Sept. 11–13, 1991.
TheFifthIFIPWG7.5WorkingConferencewasinTakamatsu,Kagawa,Japan,March24–26,1993.TheSixth
WorkingConferencewasheldinAssisi,Italy,Sept.7–9,1994.TheSeventhWorkingConferencewasatBoulder,
CO,USA,April2–4, 1996.TheEighthIFIPWG7.5WorkingConferencewasheldinKrakow, Poland, May
11–13,1998.TheNinthWorkingConferencewasinAnnArbor,Michigan,Sept.25–27,2000.ThisWorking
ConferencewastheTenthinaseries.
AfterthelastWorkingConferenceinMichigan,therehadbeenmanyunexpectedthings,forinstance,there
wastheWTCAttack.Regardingthetopic,therewasthespecialdiscussionon“ReliabilityAnalysisforAbnormal
Loads”inthisconference.
Atpresent,themembersoftheWorkingGroupare:
A.H.-S.Ang,USA G.Augusti,Italy
A.Borri,Italy J.Casas,Spain
M.Ciampoli,Italy C.A.Cornell,USA
R.B.Corotis,USA A.DerKiureghian,USA
O.Ditlevsen,Denmark M.Dogaki,Japan
H.Ellis,USA L.Esteva,Mexico
D.M.Frangopol,USA G.Fu,USA
H.Furuta(Chair),Japan P.Geyskens,USA
M.Gioffrè,Italy M.Grigoriu,USA
C.Guedes-Soares,Portugal H.Ishikawa,Japan
R.Iwankiewicz,SouthAfrica S.Jendo,Poland
M.Kawatani,Japan M.Lemaire,France
M.A.Maes(ViceChair),Canada K.Marti,Germany
R.Melchers,Australia Y.Murotsu,Japan
A.S.Nowak,USA R.Rackwitz,Germany
M.Sakano,Japan N.Shetty,UnitedKingdom
P.Sniady,Poland J.D.Sørensen,Denmark
M.M.Szerszen,USA W.Tang,HongKong
P.Thoft-Christensen,Denmark Y.-K.Wen,USA
Z.Zembaty,Poland
MembersoftheOrganizingCommitteewere:
G.Augusti,Italy J.Casas,Spain
L.Esteva,Mexico D.M.Frangopol,USA
H.Furuta(Chair),Japan C.Guedes-Soares,Portugal
M.Kawatani,Japan M.Lemaire,France
VII
M.A.Maes,Canada R.Melchers,Australia
A.S.Nowak,USA R.Rackwitz,Germany
P.Sniady,Poland J.Sørensen,Denmark
P.Thoft-Christensen,Denmark
MembersoftheLocalOrganizingCommitteewere:
M.Dogaki(Chair),KansaiUniversity
H.Furuta(Co-chair),KansaiUniversity
M.Sakano(Secretary),KansaiUniversity
M.Hirokane,KansaiUniversity
TheWorkingConferencereceivedfinancialsupportfromKansaiUniversity.
OnbehalfofWG7.5, thechairoftheConferencewouldliketoexpresshissincerethankstothesponsor,
tothemembersoftheOrganizingCommitteefortheirassistance,andtotheauthorsfortheircontributionsto
theproceedings.SpecialthanksareduetothemembersofLocalOrganizingCommitteefortheirexcellentservice.
HitoshiFuruta
December2002
VIII
ReliabilityandOptimizationofStructuralSystems,Furutaetal.(eds)
©2003Swets&Zeitlinger,Lisse,ISBN9058095533
Calibration of the design code for concrete structures
AndrzejS.Nowak&MariaM.Szerszen
UniversityofMichigan,Michigan,USA
ABSTRACT: The presented study deals with the development of design code for reinforced concrete and
prestressed concrete beams, slabs and columns. The major steps in the code calibration procedure include
the development of load and resistance models. It is assumed that the available load models are adequate.
Therefore, the main focus of this study is the verification of resistance models. A considerable database is
gatheredonmaterialstrength:ordinaryconcrete,lightweightconcrete,high-strengthconcrete,reinforcingsteel,
andprestressingsteel.Thetestresultswereprovidedbyindustryandtheyareanalyzedtodeterminethecumulative
distributionfunctionsandotherstatisticalparameters.Itisobservedthatthereisaconsiderableimprovement
in quality of materials during the last 20–30 years, and this results in an increased reliability of structural
components.Thereliabilityanalysisisperformedtodeterminethereliabilityindicesforcomponentsdesigned
accordingtothecurrentcode(ACI318-99).Basedontheresults,thetargetreliabilityindicesareselected.New
loadandresistancefactorsarerecommendedbasedonclosenesstothetargetreliabilityindex.
1 INTRODUCTION
Thepaperobjectiveistosummarizetheresultsarecentprojectinvolvingthecodecalibration.Theloadandload
combinationfactorsspecifiedinACI318-99Codehavenotbeenchangedsincethe1950s. Inthemeantime,
theAmericanSocietyofCivilEngineers(ASCE)issuedtheASCE7StandardonMinimumDesignLoadsfor
BuildingsandOtherStructures(1998).ThisStandardspecifiesloadsandloadcombinationswithcorresponding
loadfactorsbasedonaprobabilisticanalysisusingthestatisticaldataonloadandresistanceparametersavailable
in1970s(Ellingwoodetal.1980).Recently,itwasdecidedtoadoptthenewloadfactorsfromASCE7-98for
ACI318Code.
ThebasicdesignformulaspecifiedbyACI318-99Codeforacombinationofdeadload,D,andliveload,L,is
1.4D+1.7L<φR (1)
where:R=resistance,andφ=resistancefactor.
ThecorrespondingdesignformulaspecifiedintheASCE-7Standardis,
1.4D<φR
1.2D+1.6L<φR (2)
Theobjectiveofthepresentstudyistodeterminetheresistancefactorsthatareconsistentwithloadandload
combinationfactorsspecifiedbytheASCE7-98Standard(Eq.2).
Thecalibrationprocedureincludessixsteps.
1. SelectionofstructuraltypesandmaterialscoveredbyACI318Code.
2. Developmentofstatisticalmodelsforloadcomponents.
3. Developmentofstatisticalmodelsforresistance.
4. Selectionofthereliabilityanalysisprocedure.
5. Selectionofthetargetreliabilityindices.
6. Calculationandselectionofloadandresistancefactors.
1