高聳結構風洞試驗模型設計研究.pdf

1、97S060長安大學碩士學位論文直聳結拉凰涸達驗撞型煎鹽班窒丁鵬程指導教師姓名立壘姓一蝴盎基垂邀墊一申請學位級別塑學科名稱橋梁與隧道工程論文提交日j9】j塑絲年j月論文答辯日圳嬲年5月鄂日。。。。_______■____________—___一學位授干單位一整壘點豎一一答辯委員會主席：塑選舅盤監(jiān)一學位論文評閱人：翅選固盤焦墮墨鱟主圭2006年5月!，0，ABSTRACTHigh—risestructureissomewhatdiffe

2、rentfr伽othersbecauseofbeinghigh，light，softandslimIthasbeenwidelyusedinsomerelatedfieldssuchaspowertransmission，co唧unication，broadcastingandtelevisionsysteInDuet0itscharacteristicofshape，thed伽inatingloadofhigh—risestructu

3、reiswind10adWiththegroWthofdeⅡlandandprogressOftechnique，ithasbeendevelopedtobemuchhigher，lighterandsofterrhichincreasesitssensitivitytowindloadForthepurposeofstudyingthevibrationcharacteristicsspeed，amodeloftourtowerwas

4、testedinofhigh—risestructureunderhighwindtunnelThispaperbasingonHangZhouwantourtaWerandplatfonn，researchesthemodelFirst，thispaperresearchesthewindpressuremodelsuchas：modeldimension，modelmaterialandsettingsurveypointsThef

5、orcemeasurementmodelalsohasbeendesignedbysomefactors，suchas：thechoicesofstrainbalanceand眥terial，modelsegmentdesigningBecausethegreatestinternalforceanddisplacementofeverysectionwhenthestructureisunderthedynamicloadsarene

6、arlycorrelativewiththefrequenciesandthevibrationalforIIlatswhenthestructureisunderthenaturalvibration，seekingnaturalvibrationfrequenciesandmodesisthepreconditionandbasetocarrythrougheverydynamicanalysisInthethesis，ontheb

7、asisofexistingdatacollectedofdyn鯽ics，takingtheexampleofHangZhouwantourtower，establish3一DfiniteelementmodelofitwithsoftwareANSYS，andcalculateandanalyzeitsnaturalvibrationfrequencies，andanalyzetheeffectsofnaturalvibrationf