拱形波紋鋼屋蓋增強(qiáng)方法研究.pdf

1、分類號(hào)——UDCY1021112密級(jí)——學(xué)校代碼!Q塑Z武屬理歹大薯學(xué)位論文題目拱絲渡筮塑屋羞增I量立洼班究英文StrengtheningMethodResearchofArched題目gQ叢g型曼魚S!曼盟l垃Q￡研究生姓名望豎指導(dǎo)教師姓名至：』：職稱到塾撞學(xué)位譴單位名稱圭盔三堡壘建氫鱟瞳郵編』QQ2Q申清學(xué)位級(jí)別蘭鱟塑學(xué)科專業(yè)名稱繾塑三堡論文提交日期!!!i生!!旦論文答辯日期學(xué)位授予單位巒這堡蘭盤堂學(xué)位授予日期答辯委員會(huì)主席——評(píng)

2、閱人2006年11月ABSTRACTArchedCorrugatedSteelRoof(ACSR)isatypicalcoldformedthinwallspacesteelstructure，whichhasmanyadvantagesthatishavingdeadweightquickinconstructionandbeautifullyshapedSinceitwasintroducedtoChinainlate1980s，i

3、thasbeenwidelyusedandhashighcompetitivepoweranddevelopingprospectDuringthiskindofstructurehasbeenwidelyused，italsoexposedsomefatalweaknessthatisbearingcapacityisnothighandtherigidityissmallresultinginthelimitedapplicatio

4、nspanscope，whichhasrestrictedthestructureapplicationscopeseriouslyandhasaffectedthisstructuredevelopmenttendency_ThispapertakesthetypeMMR一238ofArchedCorrugatedSteelRoofasitsobjectofstud3；andtwostrengtheningmethodsofthiss

5、tructureissuggestedinthispaperThestrengtheningstepsaswellascorrespondingcharacteristicareintroducedinthispaperFiniteelementmodelswithdifferentspan，ratioofheightspanandloadcaseofthestrengtheningstructureareestablishedbyus

6、ingtheABAQUSsoftwareTheultimatebearingcapacity、deformationandfailuremodesoftheACSRareanalyzedandcomparedforthestrengthenedandordinarialstructureThedetailworksisasfollows：1、TwostrengtheningmethodsofACSRstructureisputforwa

7、rd，andthestructuralformsaswellasthecharacteristicsoftheACSRareexpoundforthestrengthenedandordinarialstructure2、HowtOuseABAQUSfiniteelementsoftwaretosetupthestren91henstructuralmodelofACSRisexplainedindetail3、Bymakinguseo

8、ftheABAQUSfiniteelementsoftware，thegeometricandmaterialnon—linearfiniteelementanalysisof24m、30mand36mspanofACSRunderthedifferentratioofheightspanandloadcaseiscarriedoutforthestrengthenedandordinarialstructureTheanalysisr

9、esultindicatesthattheultimatebearingcapacityandrigidityofACSRwiththetwostrengtheningmethodareenhancedremarkablyTheytwostrenIgtheningmethodsforACSRhavesomecertainapplicationvalueKeywords：ArchedCorrugatedSteelRoof：strength