造橋機(jī)主梁結(jié)構(gòu)設(shè)計(jì)及關(guān)鍵技術(shù)研究.pdf

1、學(xué)位論文造橋機(jī)主梁結(jié)構(gòu)設(shè)計(jì)及關(guān)鍵技術(shù)研究梁權(quán)指導(dǎo)教師姓名益塞盤(pán)鱟呈蒸＆塾撞申請(qǐng)學(xué)位級(jí)別塑專(zhuān)業(yè)名稱(chēng)墊拭選鹽盈堡壘論文提交日期200505論文答辯日期20050528學(xué)位授予單位益童盤(pán)堂二oo五年五月AbstractThegirderisamajorpartofaMoveSupportSystemfforshort：MSS)，andthewholeMSSsecurityandeconomywasaffectedbythestructureo

2、fthegirderButthewebisallimportantcomponentofthesteelboxgirderitssteel—consumingaccountsforlargeproportioninallsteel—consumingofthewholegirderDuetotheoddsstressdistributinginthecrosssectionoftheweb，thematerialresistancewa

3、snotexertedenough，andsteelwaswastedbadlyItisshownbyexperiencethatthewebamountandthicknessislargerthematerial—consumingismoreintheboxsteelgirderdesignSesearchingandimprovingwebdesign，exertingmaterialresistancefullyorreduc

4、ingproportionofnoexertingmaterialresistanceenoughhasbeenusedasallimportantmethodofsolvinglargespan，lightweight，savingmaterialintheboxsteelgirderdesignBecausethehJ【ghweb(theratioofheightandthicknessislargerormuchlargertha

5、n25mcanreducetheproportionofnoexertingmaterialresistanceinallsteelconsumingofthewholegirderagreatdealofsteelwassavedInthispaperwitIlthefamousFEMsoftwareANSYS，thefiniteelementmodelofthewholeMSS5015000andMSS230wereestablis

6、hedaccordingtotheircharactersandworkconditions，andthenthestructurestress，deformationandstabilitywasconformedbythestaticandtheeiganvaluebucklinganalysismethodsThemajorparametersoftheMSS5015000weretestedattheconstructionlo

7、caleThehigh—strengthboltgroupconnectingupperandnetherwebboardoftheMSS230girderwasanalyzedbytheFEMsoftwareANSYS，andtheboltpowerdistributionwasgainedandthemendingblueprintwasputforwardaccordingtotheboltgroupofdangerpositio

8、nAtthesametime，thehighwebstructurewasresearched，andthedeformationandstabilityoftheverticalandlevelstiffenerwasanalyzedFinallythemethodofthecorrugatedhighwebboxgirderstructuredesignwasintroduced，anditsuserangewasbroadened