不同土壤条件下结构体系抗震可靠度评价

IF 0.5 Q4 ENGINEERING, GEOLOGICAL

International Journal of Geotechnical Earthquake Engineering Pub Date : 2017-07-01 DOI:10.4018/IJGEE.2017070102

Francisco Javier Villegas Mercado, Hamoon Azizsoltani, J. R. Gaxiola-Camacho, A. Haldar

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引用次数: 12

摘要

Thisarticledescribeshowtheseismicdesignofastructureconsideringsoilconditionsisavery difficult > andcomplicatedprocess。Inorder tominimizeeconomiccost followinganearthquake，提出了基于性能的地震设计(PBSD)概念。这让工程师设计structuresbyconsideringapredefinedamountofdamagethestakeholdersarewillingtoacceptand thecorrespondingeconomicconsequences.Threeperformancelevels;ImmediateOccupancy(IO)， LifeSafety(LS)，andCollapsePrevention(CP)arebeingconsideredatpresent。Themajorchallenge inimplementingPBSDistheestimationoftheunderlyingrisk。Tofillthisknowledgegap，anovel reliabilityapproachisproposedbyintegratingfirst-orderreliabilitymethod，responsesurfacemethod, andadvancedfactorialconcepts。PBSDisshowcasedwiththehelpofastructuredesignedbyexperts satisfyingrecentdesignrequirements。TheresultsindicatethatPBSDguidelinesaremoredesirable thantheoldercriteria，structuresshouldbedesignedconsideringmultipleearthquaketimehistories, andsoilconditionisanimportantdesignfactor。关键词:设计时域地震动，岩土工程场地分类，基于性能的抗震设计，场地地震风险分析，结构可靠性

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Seismic reliability evaluation of structural systems for different soil conditions

Thisarticledescribeshowtheseismicdesignofastructureconsideringsoilconditionsisavery difficult andcomplicatedprocess. Inorder tominimizeeconomiccost followinganearthquake, the performance-based seismic design (PBSD) concept is proposed. This lets engineers design structuresbyconsideringapredefinedamountofdamagethestakeholdersarewillingtoacceptand thecorrespondingeconomicconsequences.Threeperformancelevels;ImmediateOccupancy(IO), LifeSafety(LS),andCollapsePrevention(CP)arebeingconsideredatpresent.Themajorchallenge inimplementingPBSDistheestimationoftheunderlyingrisk.Tofillthisknowledgegap,anovel reliabilityapproachisproposedbyintegratingfirst-orderreliabilitymethod,responsesurfacemethod, andadvancedfactorialconcepts.PBSDisshowcasedwiththehelpofastructuredesignedbyexperts satisfyingrecentdesignrequirements.TheresultsindicatethatPBSDguidelinesaremoredesirable thantheoldercriteria,structuresshouldbedesignedconsideringmultipleearthquaketimehistories, andsoilconditionisanimportantdesignfactor. KEywoRDS Design Time Domain Earthquake Ground Motions, Geotechnical Site Classifications, Performance-Based Seismic Design, Site-Specific Seismic Risk Analysis, Structural Reliability

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来源期刊

International Journal of Geotechnical Earthquake Engineering ENGINEERING, GEOLOGICAL-

CiteScore

1.90

自引率

25.00%

发文量