高聳結構抖振時域分析.pdf

1、西南交通大學碩士學位論文高聳結構抖振時域分析姓名：楊鑫炎申請學位級別：碩士專業(yè)：橋梁與隧道工程指導教師：鄭史雄20050301西南交通大學碩士研究生學位論文第1l頁AbstractWiththeincreasingoftheheightofthehighrisebuildings，thebuffetingresponsebecomesmoreflexibleandmoreinstensiveItinducedbywindplaysani

2、mportantroleinstructuredynamicanalysisAlthoughtheanalysisprocessinfrequencydomainisnotcomplex，itisnotapplicabletothenonlinearityofthestructuresBecausetherearemorerandomattributionswithconstructionandwindloads，itisappropr

3、iateandeffectivetoUSethemethodoftimedomainanalysistostudyonthewind—inducedvibrationpropertyofthehigh—risestructureThebuffetingofhighrisestructureCanbeanalyzedinbothfrequencydomainandintimedomainComparedwiththeanalysisinf

4、requencydomain，theanalysisintimedomainCansimulatetimehistoryItalsocanrespondtotheinfluenceofthestructurewhichisnon—linearandtotheinfluenceoftherelativityofthewind_loadsNaturallytheaccuracyofbuffetinganalysisliesonthebuff

5、etingforcespectrumandthemodelofthestrlJctLlreInadditiontheanalysisprocessinthetimedoraainalsoincludesthesimulaiionofturbulencefieldsthatcalltransfertheforcespectrumtoforcetimehistoryBasedonrandomvibrationandup—todatebuff

6、etingtheoryinthetimedomainandthedomesticandinternationalpreviousresearchworksofthesamefield，thebuffetingtimedomainanalysisofthellighrisestructureandsomerelevantworksarefurtherstudiedinthisthesisThemajorworkspresentedinth

7、epaperarestatedasfollowing：1ThechimneyandwatertowerofBanshanIronandSteelPlantiSthetrussstmcture，SOthewindloadiscomparativelycompliatednlewindloadcoefficientandstructureCannotbegotfromthenationalbuildingcodeofChinaandothe

8、rreferencesBythemodeltestofwindtunnelthewindstaticcoe街antofthechimneyandwatertowerisacquicedandaccordinglythewindstaticloadonthechimneyiscaculated2Basingonthetheoriesofthestructurewindvibrationandanalysisofpowerspectrumo