大跨单悬索斜拉人行钢连桥人致振动控制研究

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程华群¹，黄燕平²，王海明²，覃高明，王建立²，高星亮²（

关键词：人行连桥;行走激励;舒适度；峰值加速度；调谐质量减振器 中图分类号：TU317;TU318；TU391 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202407037

Human-induced vibration control for a long-span single suspension cable-stayed steel footbridge

CHENG Huaqun1， HUANG Yanping²，WANG Haiming²， QIN Gaoming'， WANG Jianli²， GAO Xingliang² （1.ShenzhenCapolInternational&AssociatesCo.，Ltd.，Shenzhen518038，China；2.Gerb（Qingdao）VibrationControlCo.，Ltd.， Qingdao 266108，China；3.SZDji Technology Co.，Ltd.，Shenzhen 518048，China）

Abstract：To investigatethe human induced vibrationcomfort and vibrationreduction measuresofalow-frequencylarge-span single suspensioncable-stayedstelfootbridge，anewflexiblesinglesuspensioncable-stayedstelfootbridgewithaspanofaroxiately 76m betweentheeastandwestowersofjiSkyCityinSenzenisakenastheesearchobjectTeumaniducedvbratioesultsandvibation controlmeasuresofthefootbridgeareanalyzed.Teverticalfirstthre ordermeasurednaturalfrequenciesarearoundO.81，1.4land 2.72Hz respectively，which areall lower than the current standard limit of 3Hz and fall within the pedestrianwalking frequency range; this easily causefotbridgeresoanceandpedestriandiscomforteleventcomfortevauationstandardatomeandabroadwerecomparedandstudied， andthevibrationontrolojectiveofthisprojectwasdefined.Finiteelementsimulationanalysisndi-ituvibrationmeasureentwere adoptedtocarroutacomparativestudyonthevibrationresponseofthefotbridgeuderexcitationofequivalentpedestriansatdieret walkingfrequesfodestaloftuedasprss）tsicateatsrigsetsoid basedontwodiferentfrequenciescansignificantlyreducethefotbridgevibrationacelerationcausedbysynchonous walkingresoance excitationesonantwithteaturalfrequeniesoftefotbridgeTemeasuredmaximpakacelerationisducedfromteiginal093 （204 m/s2 to less than 0.32m/s2 .The TMDs also exhibit a certain damping effect on walking excitation at other frequencies，achieving vibration control at multiple frequencies and meeting the comfort control target requirements.

Keywords： footbridge;walking excitation; comfort level; peak acceleration; tuned mass damper （TMD）

人行钢连桥结构体系中，大跨悬索或斜拉人行钢连桥因其结构形式轻柔美观，可有效减轻结构自重、节省材料，得到工程师青睐。（剩余15167字）