大跨屋蓋結(jié)構(gòu)風(fēng)荷載的數(shù)值模擬與風(fēng)致響應(yīng)分析

1、⑦申請(qǐng)同濟(jì)大學(xué)工學(xué)碩士學(xué)位論文y8毒6S83大跨屋蓋結(jié)構(gòu)風(fēng)荷載的數(shù)值模擬與風(fēng)致響應(yīng)分析培養(yǎng)單位：一級(jí)學(xué)科：二級(jí)學(xué)科：研究生：指導(dǎo)教師：土木工程學(xué)院土木工程結(jié)構(gòu)工程周仁董冰副教授二oo六年三月AbsttactWiththedevelopmentofteconolgyandscienceandtheinprovementoftheconstructiontechnics，anumberoflongspanroofstructureswith

2、beautifulshapesandnewstructuralsystemsarewidelyappliedintothepublicconstructions，forexample，gymnasium，hangarandtheaterMeanwhile，withtheincreaseofspanandthedecreaseofstructure’sselfgavitywindloadnowistheprimaryloadofthisk

3、indofstucture，somuchascontrolloadHoweverthetheoryaboutanalysisofwindinduceddynamicresponseofthiskindofstructuredoesn’tdevelopaccordinglyThispaperstudysthewindloadindetail，andthensimulatethewindload；Analysewind—induceddyn

4、amicresponse，anduserandomvibrationtheoryanalysetheresponseMystudyworklistsasfollow：Firstlyanalysespecialitiesaboutwind，forexample，theconstituentsofwind，windsectionandthespecialitiesofpulsantwindAndthenexpatiatethetechnol

5、ogyofnumericalwindtunnel，andthenusethistechnologyanalysethedistributionofthewindaroundthestructureProgramaboutsimulatedwindloadusingrelatedtheoryandvalidatetheresuleSecondlyanalysestructureresponseunderwindloadwhichsimut

6、atedbyabovemetionedprogramme，ItakeintoaccounttheinfluenceofverticalwindandotherfactorandbringforwardwindloadfactoroflongspanroofswhichcanbereferencedinthedesignofpracticalprojectsLastlyanalyselongspanroofinfrequencydomai

7、n，takeintoaccountmodalcouplingeffect，compareresultbyCQCmethodtotheresultbySRSSmethod，andcomparetheresultcomputedinffequencydomaintotheresultcomputedintimedomainKeyWords：Randomvibration，windloadcharacteristic，numericalwin