高耸钢烟囱环形TLD减振试验与数值模拟
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摘要
针对高耸钢烟囱环形调谐液体阻尼器(TLD)的减振试验及其数值模拟开展研究。根据高耸钢烟囱模型结构,设计制作了环形TLD试验模型,确定了试验加载和测点布置方案。建立了环形TLD力学模型,并推导了高耸结构环形TLD减振控制的动力分析模型,据此编制了高耸结构环形TLD减振的分析程序。分别开展了模型结构设置纯水环形TLD、附加金属栅格环形TLD和附加泡沫颗粒环形TLD的减振试验,并进行了数值模拟对比分析。研究表明:所编制的程序能够模拟模型结构设置环形TLD减振结构体系的动力响应;当环形TLD调谐频率比为0.9时,减振体系阻尼比超过0.04,减振效果最佳;附加金属栅格或泡沫颗粒,能够提高环形TLD中液体阻尼,耗散振动能量,但随着液体运动受限增加,减振效果有所下降。研究为高耸钢结构环形TLD减振的设计和应用提供了相关数据。
The vibration control experiment and its numerical simulation for high-rise chimney steel structures with ring shaped tuned liquid damper( TLD) were investigated. According to the scaled model of the high-rise chimney structure,a ring shaped TLD was designed and manufactured,and the schemes of the load cases and measuring points for the dynamic experiment were planned. The constitutive model of ring shaped TLD was established,and the dynamic analysis model of the high-rise structure with ring shaped TLD was deduced and programmed. The vibration control experiments of high-rise chimney structures with ring shaped TLD,ring shaped TLD damped by barbed wire and ring shaped TLD damped by foam particles were conducted respectively,and the results were compared with the numerical simulation. The investigations show that the program can predict the dynamic responses of the high-rise structures with ring shaped TLD. When the tuned frequency ratio of the ring shaped TLD is equal to 0. 9,the damping ratio of the vibration control system is more than 0. 04,which is the best case. Also,both barbed wire and foam particles can increase the damping of the liquid in the ring shaped TLD,so some of the vibration energy may be dissipated by the ring shaped TLD. On the other hand,they also control the fluctuation of the fluid,which may reduce the damping effect of the TLD. The work may offer some reference for the design and application of the ring shaped TLD used in the high-rise steel structures.
引文
[1]李宏男,井秦阳,王立长,等.利用浅水水箱作为阻尼器的大连国贸大厦减振控制研究[J].计算力学学报,2007,24(6):733-740.(LI Hongnan,JING Qinyang,WANG Lichang,et al.Wind-induced vibration control of dalian international trade center using tuned liquid dampers[J].Chinese Journal of Computational Mechanics,2007,24(6):733-740.(in Chinese))
    [2]李爱群,瞿伟廉,程文瀼.南京电视塔风振的混合振动控制研究[J].建筑结构学报,1996,17(3):9-17.(LI Aiqun,QU Weilian,CHENG Wenrang.Research on hybrid vibration control of Nanjing TV tower under wind excitation[J].Journal of Building Structures,1996,17(3):9-17.(in Chinese))
    [3]李宏男,闫石,贾连光.利用调液阻尼器减振的结构控制研究进展[J].地震工程与工程振动,1995,15(3):99-110.(LI Hongnan,YAN Shi,JIA Lianguang.Review of current researches of structural vibration control by using tuned liquid damper[J].Earthquake Engineering and Engineering Vibration,1995,15(3):99-110.(in Chinese))
    [4]Jin Q,Li X,Sun N,et al.Experimental and numerical study on tuned liquid dampers for controlling earthquake response of jacket offshore platform[J].Marine Structures,2007,20(4):238-254.
    [5]李爱群,蔡丹绎,程文瀼.调频液体阻尼器的振动试验及其等效力学模型研究[J].东南大学学报(自然科学版),1997,27(增刊1):12-16.(LI Aiqun,CAI Danyi,CHENG Wenrang.Vibration test of tuned liquid damper and its equivalent mechanical model[J].Journal of Southeast University(Natural Science Edition),1997,27(Suppl.1):12-16.(in Chinese))
    [6]岳前进,张力,刘小惠,等.调谐液体阻尼器(TLD)附加阻尼力的量测[J].土木工程学报,2008,41(6):22-26.(YUE Qianjin,ZHANG Li,LIU Xiaohui,et al.Measurement of the supplementary damping force of tuned liquid dampers[J].China Civil Engineering Journal,2008,41(6):22-26.(in Chinese))
    [7]Kim Y M,You K P,Cho J E,et al.The vibration performance experiment of tuned liquid damper and tuned liquid column damper[J].Journal of Mechanical Science and Technology,2006,20(6):795-805.
    [8]钱稼茹,Warnitchai P,丁雄.用TLD减小电视塔动力反应的振动台试验研究[J].建筑结构学报,1995,16(5):32-39.(QIAN Jiaru,Warnitchai P,DING Xiong.Shaking table experiment study on the suppression dynamic response of a TV tower with TLD[J].Journal of Building Structures,1995,16(5):32-39.(in Chinese))
    [9]楼梦麟,牛伟星,宗刚,等.TLD控制的钢结构振动台模型试验研究[J].地震工程与工程振动,2006,26(1):145-151.(LOU Menglin,NIU Weixing,ZONG Gang,et al.Shaking table model test for a steel structure under control of tuned liquid damper[J].Earthquake Engineering and Engineering Vibration,2006,26(1):145-151.(in Chinese))
    [10]李昕,孙宁,金峤,等.海上平台利用TLD的减震研究[J].船舶力学,2009,13(4):615-620.(LI Xin,SUN Ning,JIN Qiao,et al.Study on vibration-absorbing of the offshore platform with TLD[J].Journal of Ship Mechanics,2009,13(4):615-620.(in Chinese))
    [11]瞿伟廉,李秋胜,宋波,等.圆环形深水TLD对电视塔风振反应控制的试验与研究[J].特种结构,1995,12(3):47-50.(QU Weilian,LI Qiusheng,SONG Bo,et al.Experiment and research for controlling wind vibration responses of TV tower with ring-shape deep water TLD[J].Special Structures,1995,12(3):47-50.(in Chinese))
    [12]周惠蒙,吴斌.TLD振动台子结构试验的数值仿真分析[J].震灾防御技术,2010,5(1):9-19.(ZHOU Huimeng,WU Bin.Numerical simulation of substructure shaking table test with tuned liquid damper[J].Technology for Earthquake Disaster Prevention,2010,5(1):9-19.(in Chinese))
    [13]Lee S,Park E C,Min K,et al.Experimental implementation of a building structure with a tuned liquid column damper based on the real-time hybrid testing method[J].Journal of Mechanical Science and Technology,2007,21(6):885-890.
    [14]Lee S,Park E C,Min K,et al.Real-time hybrid shaking table testing method for the performance evaluation of a tuned liquid damper controlling seismic response of building structures[J].Journal of Sound and Vibration,2007,302(3):596-612.
    [15]陈鑫.高耸钢烟囱风振控制理论与试验研究[D].南京:东南大学,2012:98.(CHEN Xin.Theoretical and experimental study on vibration control of high-rise steel chimneys under wind load[D].Nanjing:Southeast University,2012:98.(in Chinese))
    [16]陈鑫,李爱群,王泳,等.高耸钢烟囱环形TLD减振试验设计与模型修正[J].建筑结构学报,2015,36(1):30-36.(CHEN Xin,LI Aiqun,WANG Yong,et al.Model design and updating for experiment of ring shaped TLD control of high-rise steel chimneys[J].Journal of Building Structures,2015,36(1):30-36(in Chinese))
    [17]瞿伟廉,陶牟华,CHANG C C.五种被动动力减振器对高层建筑脉动风振反应控制的实用设计方法[J].建筑结构学报,2001,22(2):29-34.(QU Weilian,TAO Muhua,CHANG C C.Practical design method for effect of five kinds of passive dynamic absorbers on fluctuation wind-induced vibration response control of tall buildings[J].Journal of Building Structures,2001,22(2):29-34.(in Chinese))

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