開口薄壁柱空間理論及基于此的柱子曲線驗算.pdf

1、分類號UDC密級學(xué)號彳屈火擎碩士學(xué)位論文論文題目：開口薄壁柱空間理論及基于此的柱子曲線驗算論文作者：白洪源蠢親、登囂鑫蓉：李開禧教授重慶大學(xué)申請學(xué)位級別：碩士專業(yè)名稱：結(jié)構(gòu)工程論文提交日期：2003年5月6日答辯日期：2003年6月6日學(xué)位授予單位：重慶大學(xué)授位日期：2003年6月30日答辯委員會主席：戴國欣教授論文評閱人：曾德榮教授戴國欣教授2003年5月6日英文摘要ABSTRACTBasedonthethreenewsupposit

2、ionandthetownewmechanicaltools：momentvectorandradiusvector，thewarpingtheoryintroducedtheanal螄calmethodoftherotationofacrosssectionaroundafixedaxis，soastomakethespacestabilityofthethin—walledmembercomplanateandone—dimensi

3、onedAccordingtotheprincipleoftherigidbodymotioning，thetheorycomposedthebendingbythetwoprincipalaxisandtherotationaroundtheshearcentertoarotationaroundanewpointAccordinglyitunifiedthetraditionalthreedimensionanalyticalmet

4、hodtothenewonedimensionanalyticalmethod，andmadetheanalysisofthespacestabilitymoresuccinctandsimpleThepaperintroducedthespacestabilitytheorybasedonthemethodoftherotationofacrosssectionaroundafixedaxisofthethin—walledmembe

5、randmadesomesimplydiscursionsAccordingtothetheoryaprogrammeWasworkedouttoanalyse[shaped，TshapedandL—shapedaxescolumnsUsingtheresultsoftheprogramme，thepaperhasmadethegraphofthecriticalforcechangingby^，andfurthermoreanalys

6、edthecharacteristicofthethin—walledmembers’spacestabilityIntroducedthesecondorderanalysisofthethin—walledmembersbasedonthetheoryoftherotationofacrOSSsectionaroundafixedaxis，anddiscussedthegeneralmethodsoftheloadingcapaci

7、tyandthespacestabilitycoefficientpforthethin—walledcolumnsUsedaprogramme，alargeamountofspacestabilitycoefficientofTshapedandL—sh印edaxescolumnswitha1／1000initialbendWascomputedtogaintheclnvesofthecolumnsTheprocedureofthec

8、omputationbehavedthesimplificationandtheconvenienceofthemethodAtthesametime，awaywasputforwardtooptimizethesectionofthethin—walledcolumnsAfterthecomparisonofthestabilitycheckingcomputationsandthesectioncategorisedsituatio

9、nbothathomeandabroadthecurrentstandard，someproblemswasdiscussedinthestandardofourcountryContraposedthesequestions，thepapercomputedthespacestabilitycoefficientpofsomegeneralTshapedandL—shapedsectionsandallthesectionsofTsh

10、aped，Lshapedand2angleironTshapedintheformedsteeltable，andworkedoutthecurvesAccordIngtothecomparisonoftheCLlEVesthepapergotandtheC1LIVeinthestandard，somesimpleconclusionsWasputforwardtodiscussionthesectioncategorizedsitua