单自由度结构中基于性能抗震设计的能量方法

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1、北京交通大学硕士学位论文单自由度结构中基于性能抗震设计的能量方法姓名：丁玉春申请学位级别：硕士专业：防灾减灾工程及防护工程指导教师：朱晞20061201北京交通大学硕士论文摘要neconceptoftheenergyisclearand啪reflectthestrengthandspectracharacteristicoftheearthquakeperfectly,especiallythedurationoftheearthquakebroughtthegeneralaffectsofdamagetostructures，andc柚learnt

2、heinelasticdeformationprocessundertheearthquakefromtheinputandhystericenergy,sotheenergymethodisconsideredanimportantdevelopingdirectionofimprovingtraditionalresistingearthquakemethods．Atthepresenttime,thestrength、ductilityandotherconceptscangetthelogicalexplanationthroughtheen

3、ergypointofview．ConsideringthecapabilityofthestructuresresistingtheearthquakethroughtheenergytoanalysistheeffectfactorsoftheSDOFstructuresofduration、ductilitycoefficient、forcereductionfactorandSOon，tOgettheaccumulativeandinstantinputenergy、hystereficenergyereandtheirsruleofthee

4、nergy．Usingtheelastic-plasticdynamictime-historyanalysisprogramunderdifferentfieldscalculatedtheenergyoftheSDOFstructures．ncFortranprogramWascompiledtosolvetheproblem，andthesametimetheresultswastestifiedbytheprofessionalSoftware．Istarttheworkfromhereinafterseveralaspects：1．Rese

5、archingenergytime—history，fromtheequivalentvelocitytime-historydrawingc孤learntheinformationthatwherethepulsemotionofthefieldandtheresponsetimethatattainthelargestinputenergywasveryshorterthanthelongdurationearthquakebutthedissipationenergyislargerlocated．Sotheinstantinputenergy

6、shouldnotbeignoredinearthquakedesign．nctwoaspectsofinputenergyissameimportantforresearchingthemotionsofthefields，andcanreflectthedifferentdamageactionstotally．2．Calculatingthespectra,whichistheinputenergy、hystericenergyandtherelationoftheinputenergywiththedisplacement，andve订fyi

7、ngthattheinelasticinputenergyspectracanbesubstitutedbytheelasticinputenergyspectra．Thefieldswereconsideredthroughcomparing．Therangeoftheequaldisplacementandequalenergyrulesisdiscussed．3．FromanalyzingtheempiricalenergyequationsadvisedbySomeresearcherstolearntheprogressconditiono

8、ftheenergymethodandputforwardtheadvicesandthelacksabou