高強加芯混凝土框架柱抗震性能試驗研究及非線性有限元分析.pdf

1、分類號：TU310710—20叫的540竣參太海碩士學位論文高強加芯混凝土框架柱抗震性能試驗研究及非線性有限元分析田懿導師姓名職稱郭軍慶副教授申請學位級別工學碩士學科專業(yè)名稱結構工程論文提交日期2009年5月20日論文答辯日期2009琿丐碉乏i百學位授予單位長安大學答辯委員會主席學位論文評閱人蘇明周蘇明周盧林楓AbstractThecollapseofbuildingisalwaysduetofailureofconcreteflame

2、columnswhichcanbepreventedbyimprovingtheductilityofcon6TeteframecolumnsInourcountry’S，mainlythroughpermittingaxialcompressionratiotoimprovetheperformanceofcolumnsSectionsizeofconcreteframecolumnsofencontrolledbylimitvalu

3、esofaxialcompressionratioInthispapertheobjectisconcreteflamecolumnwithcentralreinforcementandtheuseofhighstrengthconcrete，whichwi廿limprovingbearingcapacityandreducingse砸onsize，howeverwiththeincreaseinstrengthgrade，itsbri

4、ttlecharacteristicslooksmoreandmoreobviouslyItisnecessarytesearchitsseismicbehaviorThroughthetestofhighstrengthconcrete]哦tlnecolumnwithcentralreinforcementunderhighaxialcompressionratioandcycliclateralloading，thispaperde

5、scribedthemajorexperimentalphenomenaandfailurepaRerns，studiedthetestresultsofeachspecimenincludinghystericloops，displacementductilitycoefficientintensitystiffnessdegra&tionviscousdampingcoefficientseteThefactorsaffecting

6、theductilitycapacityofhighstrengthconcretefl麓mecolumnwithcentralreinforcementwereanalyzedTheresultsshow也at’withreasonablearrangementofthecorecolumnconcrete，highstrengthconcreteframecolumnwithcentralreinforcementhaveexcel

7、lmentductilityandhigherbearingcapacityseismicbehaviorofconcretefrRmecolumnscanbeimprovedLongitudinalreinforcemontratio，thecrosssectionareaandvolumetrictieratiooftheVA3recolumnarethemajorfactorsaffectingductilitycapacityo

8、fhighstrengthconcreteframecolumnwithcentralreinforcementBesides，nonlinearfiniteelementanalysisisoperatedwithANSYSprogramonthefiniteelementmodelThroughcontrastthefiniteelementnumericalanalysisresultwithtestveracityoftestr