高层建筑结构在风荷载作用下的振动分析[]（vibration analysis of high-rise building under wind load []）

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1、高层建筑结构在风荷载作用下的振动分析[1]（Vibrationanalysisofhigh-risebuildingunderwindload[1]）Vibration.Fluctuatingairpressureisadynamicloadcausedbyturbulentmotionoftheatmosphere.ArchitectureTheactionoffluctuatingwindpressurearoundtheobjectisshowninfigure3[4].Vibration.

2、Fluctuatingairpressureisadynamicloadcausedbyturbulentmotionoftheatmosphere.ArchitectureTheactionoffluctuatingwindpressurearoundtheobjectisshowninfigure3[4].No.Volume3424ShanxiArchitectureVol.34No.24862008AugustSHANXIARCHITECTUREAug.2008Structure,earth

3、quakeresistanceArticlenumber:100926825(2008)2420086202VibrationanalysisofhighrisebuildingunderwindloadQinLi,ZhangXueli,XuDeyongAbstractInthispaper,thedesignmethodsofwindload,theformofwindloadandthestructuralvibrationcausedbywindloadareintroducedIncomb

4、inationwithengineeringexamplesProceedAdetailedcalculationofstructuralvibrationresponseispresentedForreferencetothevibrationanalysisunderthesametypeofwindload.KeywordHighrisebuildingstructureFluctuatingwindpressureStructuralvibrationCLCnumber:TU312.10I

5、ntroductionHorizontalloadsonhigh-risebuildingsincludewindloadsandhorizontalseismicaction.TheactionofthewindisirregularThewindpressurekeepschangingwiththechangeofwindspeedanddirectionofwindChange.Windloadsaredynamicloadsthatfluctuatewithtime.Fortallbui

6、ldings,dynamicloadingIsthemaincauseofstructuraldamage,therefore,inhigh-risebuildingstructuredesignAndsafetyassessment,itisnecessarytocarryoutdynamicresponseanalysisofstructures.JaneAtall,softerupperdeckArchitectureThedynamiceffectmustbeconsidered[1]Fo

7、rthesakeofInsomestructuraldesigncodesorstructuraldynamicresponseanalysis,windresistanceanalysisisadoptedSomepseudostaticcalculationmethodsareused[2],thewindpressureisintheformofequivalentstaticforceButstillmustDynamicanalysisofstructures.Thewind-induc

8、eddynamicresponsesofhigh-riseandsuperhigh-risebuildingsaremainlyasfollows3aspectsConsiderations:1)theinertialforcegeneratedbywindvibrationcausesadditionalstressinthestructure;2)thevibrationaccelerationofthebuildingstructurecausesthepeoplewholi