强震作用下渡槽TLD效应模型试验研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
通过对矩形截面渡槽的单跨模型进行动力试验研究,探讨了渡槽在刚性地基强震条件下的调谐液体阻尼器(TLD)效应;通过调节槽内水位,研究了水体横向减震作用与深宽比的关系。试验结果表明,水体的晃动及水波破碎对渡槽的横向动力响应起到了TLD减震作用。渡槽内水位增加会改变结构的动力特性,使渡槽结构自振频率下降。在强震作用下,TLD横向减震效果随水位变化发生波动,当槽内水体晃动频率与渡槽结构自振频率接近时,减震作用最为显著。
Based on tests of a rectangular one-span simply supported aqueduct,the tuned liquid damper( TLD)effect on the aqueduct under the condition of a rigid foundation subjected to strong vibration was analyzed. The relationship between the transverse damping effect and the ratio of depth to width were studied by adjusting the water level. The test results demonstrated that water sloshing and wave breaking had a TLD effect on the aqueduct structure; the increase of the water level in the aqueduct changed the dynamic properties of the structure,causing the self-vibration frequency of the structure to decrease; during strong vibration,the TLD effect fluctuated with the change of water level; and the most significant TLD effect occurred when the water sloshing frequency was close to the self-vibration frequency of the structure.
引文
[1]邵岩,赵兰浩,李同春.考虑流固耦合的渡槽动力计算方法综述[J].人民黄河,2005,27(11):59-60.(SHAO Yan,ZHAO Lanhao,LI Tongchun.Summary of dynamic calculation methods of fluid-solid coupled aqueduct[J].Yellow River,2005,27(11):59-60.(in Chinese))
    [2]董平,陈招平.矩形TLD在结构振动控制中的性能试验研究[J].工业建筑,2006,36(2):8-10.(DONG Ping,CHEN Zhaoping.Experimental investigation on the performance of the rectangle tuned liquid damper in structural vibration control[J].Industrial Construction,2006,36(2):8-10.(in Chinese))
    [3]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 oftuned liquid damper[J].Earthquake Engineering and Engineering Vibration,2006,26(1):145-151.(in Chinese))
    [4]MODI V J,MUNSHI S R.An efficient liquid sloshing damper for vibration control[J].Journal of Fluids and Structures,1998,12(8):1055-1071.
    [5]REED B D,YU J,HARRYET Y,et al.Investigation of tuned liquid dampers under large amplitude excitation[J].Journal of Engineering Mechanics,1998,124(4):405-413.
    [6]LIVAOˇGLUA R,DOANGNB A.Simplified seismic analysis procedures for elevated tanks considering fluid-structure-soil interaction[J].Journal of Fluids and Structures,2006,22(3):421-439.
    [7]吴轶,莫海鸿,杨春.大型矩形渡槽-水耦合体系的动力性能分析[J].地震工程与工程振动,2004,24(4):137-142.(WU Yi,MO Haihong,YANG Chun.Dynamic characteristics of large rectangular aqueduct-water coupling system[J].2004,24(4):137-142.(in Chinese))
    [8]吴轶,莫海鸿,杨春.U形渡槽水体大幅晃动的ALE有限元模拟[J].华南理工大学学报:自然科学版,2003,31(9):90-93.(WU Yi,MO Haihong,YANG Chun.ALE simulation of large sloshing of water in U-shaped aqueduct[J].Journal of South China University of Technology:Natural Science,2003,31(9):90-93.(in Chinese))
    [9]蔡丹绎,李爱群,程文.调频液体阻尼器(TLD)的等效力学模型研究[J].地震工程与工程振动,1998,18(1):80-87.(CAI Danyi,LI Aiqun,CHENG Wen.Study on equivalent mechanical model of tuned liquid damper[J].Earthquake Engineering and Engineering Vibration,1998,18(1):80-87.(in Chinese))
    [10]吴轶,莫海鸿,杨春.三维排架渡槽中水的调频液体阻尼效应[J].水利学报,2005,36(9):1115-1120.(WU Yi,MO Haihong,YANG Chun.Analysis on tuned liquid damper effect of 3-D frame supported aqueduct[J].Journal of Hydraulic Engineering,2005,36(9):1115-1120.(in Chinese))
    [11]张多新,王清云,白新理.大型渡槽结构动力学研究进展[J].自然灾害学报,2011(4):22-30.(ZHANG Duoxin,WANG Qingyun,BAI Xinli.Research progress in structural dynamics of large scale aqueduct[J].Journal of Natural Disasters,2011(4):22-30.(in Chinese))
    [12]张多新,王清云,白新理.大型U形薄壳渡槽动力分析[J].人民长江,2008,39(16):69-72.(ZHANG Duoxin,WANG Qingyun,BAI Xinli.Dynamic analysis of large U-type thin shell aqueducts[J].Yangtze River,2008,39(16):69-72.(in Chinese))
    [13]王清云,张多新,白新理.大型矩型水工渡槽三维流固耦合动力分析[J].水利水运工程学报,2008(4):55-60.(WANG Qingyun,ZHANG Duoxin,BAI Xinli.3D dynamic analyses of fluid-solid-interaction of large-sized rectangular hydraulic aqueduct[J].Hydro-Science and Engineering,2008(4):55-60.(in Chinese))
    [14]王清云,孙元元,周生通,等.水体作用下U形薄壁渡槽的振动特性[J].噪声与振动控制,2012(4):25-30.(WANG Qingyun,SUN Yuanyuan,ZHOU Shengtong,et al.Dynamic characteristics research of U-shape thin-wall aqueduct under the action of fluid[J].Noise and Vibration Control,2012(4):25-30.(in Chinese))
    [15]李遇春,李锦华.关于大型渡槽结构设计的几个问题[J].中国农村水利水电,2006(7):57-60.(LI Yuchun,LI Jinghua.Several problems related to large-sized aqueduct structure design[J].China Rural Water and Hydropower,2006(7):57-60.(in Chinese))
    [16]季日臣,夏修身,陈尧隆,等.考虑流-固耦合梁式矩形渡槽横向地震响应研究[J].地震学报,2007(3):328-334.(JI Richen,XIA Xiushen,CHEN Yaolong,et al.Transverse seismic response of beam aqueduct considering fluid-structure coupling[J].Acta Seismologica Sinica,2007(3):328-334.(in Chinese))
    [17]季日臣,夏修身,陈尧隆.水体晃荡作用对渡槽横向抗震影响的研究[J].水力发电学报,2007,26(6):30-34.(JI Richen,XIA Xiushen,CHEN Yaolong.Research on influence of water shake acting on aqueduct transverse seismic response[J].Journal of Hydroelectric Engineering,2007,26(6):30-34.(in Chinese))
    [18]段秋华,楼梦麟,杨绿峰.槽内水深对渡槽-水体耦合结构抗震性能的影响[J].水力发电,2011,37(9):42-45.(DUAN Qiuhua,LOU Menglin,YANG Lyufeng.Effects of water depth on seismic performance of the aqueduct-water coupling structure[J].Water Power,2011,37(9):42-45.(in Chinese))
    [19]楼梦麟,段秋华.排架式渡槽竖向地震反应的振动台模型试验[C]//首届全国水工抗震防灾学术会议论文集.南京:河海大学,2006:225-231.
    [20]段秋华.大型渡槽结构振动台模型试验及抗震性能研究[D].上海:同济大学,2008.
    [21]叶列平,马千里,缪志伟.结构抗震分析用地震动强度指标的研究[J].地震工程与工程振动,2009,29(4):9-22.(YE Lieping,MA Qianli,MIAO Zhiwei.Study on earthqueke intensities for seismic analysis of structures[J].Journal of Earthquake Engineering and Engineering Vibration,2009,29(4):9-22.(in Chinese))
    [22]杨迪雄,赵岩.近断层地震动破裂向前方向性与滑冲效应对隔震建筑结构抗震性能的影响[J].地震学报,2010,32(5):579-587.(YANG Dixiong,ZHAO Yan.Effects of rupture forward directivity and fling step of near-fault ground motions on seismic performance of base-isolated building structure[J].Acta Seismologica Sinica,2010,32(5):579-587.(in Chinese))
    [23]耿方方,丁幼亮,谢辉,等.近断层地震动作用下长周期结构的地震动强度指标[J].东南大学学报:自然科学版,2013,43(1):203-208.(GENG Fangfang,DING Youliang,XIE Hui,et al.Ground motion intensity indices for long period structures subjected to near-fault ground motion[J].Journal of Southeast University:Natural Science,2013,43(1):203-208.(in Chinese))

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心