异型柱抗震性能研究

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1、武汉理工大学硕士学位论文异型柱抗震性能研究姓名：江云红申请学位级别：硕士专业：结构工程指导教师：张光辉20050201ABSTRACTR、C、special--shapedcolumnsframeisapopularstructureandwillbewidelyusedinhousebuildings．ButbecausemuchhigherstressexistsinthediscontinouspartsandcornersoftheCROSSsection，andseveredestructionundere

2、arthquakehappenstotheR、C、special--shapedcolumnframe．inOrdertogeneralizeR、Cspecial_Shapedcolumn丘ame．itsseismicbehaviorisstudied．speciallytheR、C、special--shapedcolumnframewhichthestiffnesscenterandmasscenterarenotcoincident．AsforthespecialoftheR、C、special--shaped

3、COlumnsection，systemicalanalysistoeverycolumsisdone：geometrycharacterofL、+、T、——shaDesectionssection’Sstressandstraininthefunctionofleverload．也isisthebasisoftheCOlumn’Sdynamicandantiseismicanalysisinthewholeframe．Athre浏imensionirregularsolidelementmodeliSestabli

4、shedforaspecial--shapedcolumnframe，modelanalysisofANSYSdynamicanalysisiScarriedbysubspacemethod．resultsdenoteitexistsserioustorisionphenomenaonthespectralanalysisofthestmcture，makeuseoffrequencyvalueofmodelanalysis．aswellasdesignreactingspectralcurveofanti_seis

5、micspecification．toWOrkoutseismicaccelerationValReundereverystepfrequency'whichisusedtoreactthefrequencyofthespectrum--accelerationvalue，toeaiculatethereactionofthestructureunderseismicreactingspectrum．Fromtheresult，thecolumnevident．Ontlletimeintervalanalysisof

6、thestructure．adoptacceleratioI卜—timeearthquakewaveinputprovidedbylocalEarthquakeBureau．Duetogroundshockexistinghyperdimensionponderance，andexcentricstructureCallproducetorisioninfluenceatearthquakehappen，therefore，besidesUnilateralismearthquakeinputatanalysis，s

7、tressanalysisofbimodalityearthquakeonthestructureshouldbeconsidered．Workoutstressofrelevantstructurepositionandtherelevanttimetravelcurve．ThisresultshOWSthattheearthquakeiSinevidentresponsetothedifferentintensitystructure．ButallanalyticresultCanmeettheanti—-sei

8、smicconditioas．Earthquake--resistantbehaviorofthestructureisingoodcondition．Thisresultalsovalidatestheconclusionthattheirregular--shapedcolumnshasaseriousearthquake----resis