半剛性連接網(wǎng)殼結(jié)構(gòu)的靜力分析.pdf

1、分類號(hào)y911二73——學(xué)校代號(hào)：1191l密級(jí)：學(xué)號(hào)：2240309344廣東工業(yè)大學(xué)學(xué)位論文半剛性連接網(wǎng)殼結(jié)構(gòu)的靜力分析車偉嫻指導(dǎo)老師：李麗娟教授學(xué)科門類：工學(xué)專業(yè)名稱：結(jié)構(gòu)工程申請學(xué)位級(jí)別：碩士論文提交日期：2。06年5月25日論文答辯日期：2006年6月09日學(xué)位授予單位：廣東工業(yè)大學(xué)!至圭些奎蘭竺圭蘭堡竺圣ABSTRACTSpaceshellhasbeautifulstructureshapeandexcellentmecha

2、nicsperformanceItisonekindofspacestructuresusedextensiVelyintherecentyearsIntraditionalspaceshellanalysis，thebehaviorofbarsconnectionsistreatedaseitherDinnedor“gidjointsentitywhilelotsofconstructionsandtheoryexperimentsp

3、rovedthatthebarsconnectionsisbetweenpinnedandrigid，namelysemi—rigidBecauseinpracticalconstfuction，toacenainextent，socalledpinnedjointspossessrigidity，andso—calledrigidjoin￡spossessflexjbjlityThoughthisidea】istichypothesi

4、scansimplifythedesignandanalysisprocesslargely，“engendersthelargediffcrenceoftheoryandpractice，thestructure’sinsecurityorconservationandisnotworththemoneyfThispaperanalysesthestaticperformanceonthereticulatedshellswithse

5、mirigidconnectionsunderthepresentsituationFirstlysimulatingthesemi—rigidconnectiOnsasrotatablespringsatbothends，theelementstiffhessmatrixofthespacebarwithsemi—rigidconnectionsisderivedonthebasisofthedennitionoftheelement

6、stiffnessWiththesamemethodtheformulawhichconVerttheloadactingonthespanofthebarintotheloadactingonthenodesisderiVedThemodelsisValidatedbyusingnniteelementsprogram，Usingtheestab“shedmodels，thesubroutineUELhasbeenmadeSecond

7、ly，thefiniteelementmodelsareestablishedandanalvsisedwiththeUELSothestaticanalysisofspaceshellswithrigidconnectionsandw“hsemirigidconnectionsandwithpinnedconnectionsarecarriedthroughAfterconlparingandanalyzing，someconclus

8、ionsaboutthebehaViorofspaceshellwiththesemi—rigidconnectionsaredrawnTheresultsrevealtheefkctoftheioint’sstif!Enessonthestructure’sstaticcharacteristics，implyingthatthejoint’sstifhlessshouldbetakenintoaccountandappropriat

9、ecombinationsoftheparametersshouldbeadoptedinstructuraldesignFinally，thestaticperformanceonthespaceshellswithsemi—rigidconnectionsissummedupandsuggestionsareproposedforfurtherresearchKeyWords：spaceshell；semirigidconnecti