禹門口黃河公路大橋橋位風(fēng)場特性研究.pdf

1、分類號(hào)：U44，U45107lO一20040043該步太海碩士學(xué)位論文禹門口黃河公路大橋橋位風(fēng)場特性研究劉玉靜導(dǎo)師姓名職稱胡兆同教授申請學(xué)位級別工學(xué)碩士學(xué)科專業(yè)名稱橋梁與隧道工程論文提交日期2007年04月04日論文答辯日期2007年06月05日學(xué)位授予單位長安大學(xué)答辯委員會(huì)主席學(xué)位論文評閱人劉健新教授陳長海高工劉萬鋒高工AbstractRecentlywiththegreatgrowthofthecapitaleconomybridg

2、econstructionhasdevelopeddramaticallyinourcount口Meanwhile，moreandmoreoflongspanbridgesandlarge—scalestructureshavebeenbuiltinmountmnousregionwiththeimplementofWesternDevelopmentStrategyWindcharacteristicsofmountaindistri

3、ctareveryspecialandcomplex，anditbecomesanemergingpointofdepartureinthestructurewindengineeringTheShanxiYumenkouYellowRiverhighwaybridgeacrossfromYumenkoutoTongguaninthemidstreamofYellowRiveritistypicalbankedupriverlandfo

4、rmsandthelayoftherimlandisverycomplexThebridgebelongstolarge—spangentlesuspensionsystem；consequentlyinsuringitsafewiththewindloadhasbecomecriticallyimportantinstructuredesignThispaperintroduceswindcharacteristicproblemsa

5、ndmethodsoftheatmosphericboundarylayerresearchfieldinbridgewindengineeringfirstly，andthenintroduceswindfieldmeasurementtechniquesoftheatmosphericboundarylayerthemaincontentsandmethodsaboutcollectedmeteorologicalobservedw

6、inddatabaseandSOonByusingthestrongwindspeedsamplesofYellowRiverhighwaybridge，itfocusesonstrongwindprofileandstrongwindturbulencecharacteristicsincludingturbulenceintensitygustfactorintegrallengthscaleofturbulence，powersp

7、ectraoffluctuatingspeedandspatialcoherenceFromtheanalysisofthesestrongwindcharacteristics，wecouldfmdoutthespecificwindspacedistributionandregularpatternaroundthebridgeLastlyonthebasisofgenerallyshowingnumericsimulationar

8、oundthebridge，itanalyzeswithanemphasisonacontrastbetweennumericsimulationandobservedwindstatisticsfurthermoreItiseasytoverifythenecessityoftheresearchonresistingwindsafetyduringbridgestartingconstructionandlateroperation

9、Combininglivewindobservedwithnumericsimulation，thispaperfiguresoutthewindcharacteristicsaroundthebridgeaswellasprovidesdesignbasicwindspeed，inthemeantime，othersimilararticlesmayutilizeitasreferencematerialsItwouldbeprovi