拱形波紋鋼屋蓋增強方法研究.pdf

1、分類號——UDCY1021112密級——學校代碼!Q塑Z武屬理歹大薯學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教師姓名至：』：職稱到塾撞學位譴單位名稱圭盔三堡壘建氫鱟瞳郵編』QQ2Q申清學位級別蘭鱟塑學科專業(yè)名稱繾塑三堡論文提交日期!!!i生!!旦論文答辯日期學位授予單位巒這堡蘭盤堂學位授予日期答辯委員會主席——評

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