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1、華南理工大學(xué)博士學(xué)位論文直接基于位移的抗震設(shè)計方法研究姓名：李藝華申請學(xué)位級別：博士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：吳波20061013總結(jié)給出了該類有控結(jié)構(gòu)直接基于位移的抗震設(shè)計步驟。6．考察了大震作用下，安裝粘滯和枯彈性消能器結(jié)構(gòu)的薄弱層層間位移可靠指標(biāo)與原無控結(jié)構(gòu)薄弱層層間位移可靠指標(biāo)，第一振型附加阻尼比和粘彈性材料損耗因子之間的定量關(guān)系；結(jié)合無控結(jié)構(gòu)直接基于位移可靠度的抗震設(shè)計步驟，總結(jié)給出了安裝速度相關(guān)型消能器結(jié)構(gòu)直接基于位移可靠度的抗震設(shè)計步驟。關(guān)鍵詞：抗震設(shè)計；基于性能；基于位移；可靠度；有控結(jié)構(gòu)IIAbstract砸ledirectdisplacem
2、em—baseddesign(DDBD)methodisacompletelynewseismicdesignapproachandmaydesignstrueturestoachieveperformancelevelsbyspecifyingstructuraldisplacementresponse．Apassiveenergydissipationsystemcallbeallassistantrolewithsmmuralelementsintheresistingstructuralresponsetovibration。Theperforman
3、celevelofStructuresmaybeeffectivelyimprovedbecauseoftheinstallationofthissystem．Atthepresenttime，thestructuralelementdesignisbasedonreliabilitytheoryanditsfundamentobjectistoensurethattheprobabilityofstructureachievingthepre·selectedperformancelevelmaybeacceptable．Fromtheaboveaddre
4、ss，itmayberecognizedthatthetheoriesofDDBD．controlledstructuredesignandreliabilityallCanbethetheoreticalbasisforachievingperformance·basedseismicdesign．Therefore，basedonthecombinationofthesethreetheories，thestudyofthedirectdisplacement-basedseismicdesignmethodisveryindispensable．The
5、followingworkhasbeendoneinthispaper：1．Investigatethedeterminingmethodsofexistingequivalentdampingrelationships；onthebaseofthisinvestigation,usingtheruleofthebestmatchingbetweenelasticandrelatedinelasticdisplacementspeetr扎accordingtothecalculatedresultsofdynamictimehistoryanalyses，t
6、heappropriateequivalentdampingrelationshipsofhilinearelastic，elastoplasticaaddegradingbilinearmodelsCOAlbeestablishedforDDBDmethod．2．Classifytheselectedearthquakerecordsintermsoftheircharacteristicperiods，thenextensivelyexaminetheratioofspectraldisplacement、vithcertaindampingto5％da
7、mpedspectraldisplacementandproposetheratiorelationship，Explorethepropertyofdisplacementspectraandhencegeneratestandardizeddisplacementratiospectra(displacementspectranormalizedbypcal【grounddisplacement)thatcovinglongerperiods(uptolOs)andhigherdamping(upto50％、．Determinetherelationsh
8、ipbetweenpeakgrounddisplac
