基于有限元分析的組合桁架計(jì)算理論研究

1、合肥工業(yè)大學(xué)碩士學(xué)位論文基于有限元分析的組合桁架計(jì)算理論研究姓名：劉東營申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：肖亞明20050401CalculatingMethodStudyForConlpositeSteel—ConcreteTrussBased0nFEABecauseofnlebestmechanicaIandappncabIequalities，thecompositesteel—concrete仃Ⅵssespossesse

2、xtensive印plicationforegmundaJldeminenteconomicbenefjtinthefieldofbridgeengin∞r(nóng)柚dh逗h一血ehujJdin導(dǎo)Int11ispaper，the佗searchesanddevelopmentsofcompositebeamswerejntroducedindetailfi硌tathome粕dabroad，thentheadvanceddevelopmentand

3、pmcticalValueofcomposite鼬∞lconcretetrussesweredescrjbedandanalyzedatlargeThea11alysismodeIofthree—dimensionalfinhelementisestablishedonthebasisofcxperimen協(xié)tiondonebcforeTheresultsfomFEA卸alysisshowthattheFEMresultisg他atly

4、coincidentwimtheexpcriment“resultSubsequently，theshea卜lage髓ctofconcretef1鋤gewasresearchedbasedontIlefb咖erFEModel，a11dvariabIepossibleinfluencingfhctorsasdiffe嘲l(fā)tIoadingc鵲es，width—sp鋤ra石o，sparIheightratioetcwhichwilldecid

5、e廿leValueofeffbctiVewidmof∞ncretenangearctickedo嘎thencomparesⅡleorcticalf℃sultswiththecriterionFollowingthiswork，meworkjngmechanismofcompositetnJssisexpounded，andthennailsdo帥theinfluenceextentofal】l(indsof舭torsuponthemem

6、ber’sStiffhesstllmu曲tlleFEmethod’鋤dasimpIedispl孔鋤entfornlulaispmposedint11eendWhereafter，themode柚alysisofcompositc協(xié)Jssisfinished；themodalresultsc柏eas訂yrcflectthedynamiccharactefandpossibIe出magefbrmofcompositc饑IssAtlastme

7、concIusionsweresummarized孤dt11equestions，whjchneededtobeexperimentalinVestigatjon徹dtobeanaJy髓d，wereljstedx|eywords：compostesteel啪nc似etnlss，slipe玎ecLshe缸l印，e疏ctiVewidthofconcretenallge，she盯connector，rj畫di吼nonlinearfinicee