超高层建筑非平稳风致振动TTMDI控制的优化方法

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中图分类号：TB535 文献标志码：A DOI:10.16385/j.cnki.issn.1004-4523.202401037

Optimization method of TTMDI control for nonstationary wind-induced vibration of super tall buildings

LU Jiahao, CAO Liyuan, LI Chunxiang (School ofMechanics and Engineering Science，Shanghai University，Shanghai 2Oo444，China）

Abstract:Tetialdsignofonstatioarywind-dudvibatioontolforsupertallbuingisanetrelyomlicatedproble.In ordertogivefulltoeucdatotrofucsoftolevi，itisncesataeltsi parameters.Thetuned tandem massdampersinerters (TTMD)system，whichintegrates thetuned tandem massdampers withtwoierters， canefectivelycontrol thewind-induceddynamicresponsesofstructures.Previousstudiesmainlyfocusedonthotimizationof TMDI parametersunderstatioarywindloads，butextremewindloadsoftenshownonstaioaryharacteistics，soitisecessarytoryout researchontheoptimalcontrolperformanceofTTMDIundernonstationarywindloads.Inthepresentpaper，afrequencydomainbased optimizationmethodforTDcontrolofnonstatioarywind-inducedvibrationofsupertallbuildingsisproposedbymodellngthe nonstationarywindexcitationasastationaryGauianprocesswithuniformmodulation(onlytimemodulation)andconsideringthetie invariantcoherencefunctionTeinversefstFouiertrasfor(iFFisusedtoidentifytheimpulseresponsefunctionoftespetal building-TTMDIsystem.Theevolutionaryfrequencyresponsematrix expresionforthetime-varyingrot meansquareresponseof the structureisstablsd，divagoeasaredisplacetsofteructuralatedreotagelueis takens theobectivefunction.Thepatesearchalgoritm(SA)isusedtofindtheoptimalsolutionofTMDparameters.Comparedwith thetime-domainoptiizatioesults，itisfoundthattheproposedfrqucydomaiotizationmetodcaniprovetheontroectf TTMDIadfurthriprovetheomputatioaleiciecyofoptizationCompaed withMD，itisfurtrverifedtattheTMDsyte hastheadvantagesofigerefectiveness，eterobustnessandsallrdmpinforeoutput.erefore，theproposedstatioy frequencydomainoptimizationmethodisaighprecisionoptimizationethodforcontroldevices，whichcanprovidetechnicalupportfor theparameterotimizationofstructural tunedvibrationcontroldevicsunderthestationaryGausianprocesswithon-uniformmodulation (time and frequency modulation),time-varyingcoherence functionsand non-stationary earthquakes.

Keywords;super tall buildings; nonstationary; wind-induced vibration; frequency-domainoptimization;TTMDI

中国超高层建筑主要分布于长三角、珠三角等经济发达、台风多发地区。（剩余24581字）