大型環(huán)狀索桿結(jié)構(gòu)的靜動(dòng)力性能研究.pdf

1、浙江大學(xué)碩士學(xué)位論文大型環(huán)狀索桿結(jié)構(gòu)的靜動(dòng)力性能研究姓名：盧群鑫申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：高博青2003.2.1皇登壅塑望查蘭堡主蘭竺蘭苧——————————————j翌塑—蘭三旦ABSTRACTAsatensegritysystem，thelargeannularcablebardomehasgoodperformancesUptonow，fewstudiesonthistypeofstructurehavebeenc

2、arriedoutathomeandabroadThus，itisimportanttostudythestructuralperformancesintheoryandengineeringFirstlvthefiniteelementmodelofthecablebarstructureisstudiedinthisthesisBeingthemostimpoaantmemberofthestructure，thecableisde

3、scribedindetailTheproblemsofthenumericalmodelandthefiniteelementformulaandthepretressapplicationofcablesarediscussedinthisthesisOnthebasisofthebasictheoriesandmethodsaboutstabilityanalyses，arclengthmethodisusedtoanalyzet

4、hegeometricalnonlinearstabilityofthestructureAndtheeffectsofthefise40spanratioandtheprestressincablesetconthestructuralstabilityarediscussedComparedwiththerelevantsinglelayerreticulateddome，thedynamiccharacteristicsisstu

5、diedandtheeffectsoftherise—tospanratioandtheprestressincablesetconthedynamiccharacteristicsarediscussedinthisthesisSomeproposalsCanbeappliedtopracticalengineering。Thevibrationshapesseparationspectramethodandtime—historym

6、ethodareusedtoanalyzethedynamicresponseofthecablebarstructureundercommonearthquakeAndtheeffectsoftherisetospanratioandthemassdistributionarestudiedTheeffectsofthecablearrangementonthestructuralperformancesarediscussedint

7、histhesisTheeffectsoftherise—tospanratioandtheprestressincableswithdifferentcablearrangementarestudiedandtheoptimizedcablearrangementsarefound。Finallysomeconclusionsaresummarizedandthetopicsforfurtherresearchareputforwar