调谐液体阻尼器的振动台子结构试验研究
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摘要
振动台子结构试验将结构模型作为数值子结构在计算机中计算,将调谐液体阻尼器(TLD)作为试验子结构进行物理试验。在TLD和振动台之间安装剪切力测量装置,将地震波和测量剪切力输入到数值子结构中,采用中心差分法进行数值子结构运动方程的求解,计算得到结构顶层的绝对加速度,再由振动台将加速度实时加载到试验子结构上,这样实现结构和TLD耦合体的地震模拟。对剪切力测量平台进行性能试验,验证了测量系统的正确性。对一个单自由度结构有TLD控制时的加速度响应进行振动台子结构试验,结果验证了TLD能够有效地控制结构的加速度响应。
Shaking table substructure test took the tuned liquid damper(TLD) as the experimental substructure tested physically, and the remainder of the structure was chosen to be the numerical substructure simulated in a computer. Then the seismic wave and the shear force measured by the force sensor were input to the numerical substructure. With the central difference method, the absolute acceleration at the top lay of the structure was calculated. This acceleration was enforced to the experimental substructure by shaking table to realize the interaction between the TLD and structure. The experimental results show that the shear force platform can measure shear force correctly. Shaking table substructure test results for a single degree of freedom(SDOF) structure with TLD control verify that the TLD can effectively control the acceleration response.
Shaking table substructure test took the tuned liquid damper(TLD) as the experimental substructure tested physically, and the remainder of the structure was chosen to be the numerical substructure simulated in a computer. Then the seismic wave and the shear force measured by the force sensor were input to the numerical substructure. With the central difference method, the absolute acceleration at the top lay of the structure was calculated. This acceleration was enforced to the experimental substructure by shaking table to realize the interaction between the TLD and structure. The experimental results show that the shear force platform can measure shear force correctly. Shaking table substructure test results for a single degree of freedom(SDOF) structure with TLD control verify that the TLD can effectively control the acceleration response.
引文
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[10]徐景锋.考虑SSI效应储油罐抗震性能振动台子结构实验研究[D].哈尔滨:哈尔滨工业大学,2013(Xu Jingfeng.Shaking table substructure tests of storage tanks considering SSI[D].Harbin:Harbin Institute of Technology,2013(in Chinese))
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[14]Fujino Y,Pacheco B M,Chaiseri P,et al.Parametric studies on tuned liquid damper(TLD)using circular containers by free-oscillation experiments[J].Structural Engineering/Earthquake Engineering,1988,5(2):381-391
[15]周惠蒙,吴斌.振动台混合试验平台的验证性研究[J].振动工程学报,2013,26(4):500-505(Zhou Huimeng,Wu Bin.Validation study of shaking table hybrid test platform[J].Journal of Vibration Engineering,2013,26(4):500-505(in Chinese))
[2]袁涌,熊世树,朱宏平.加载速率对速度控制型实时子结构拟动力实验结果的影响[J].东南大学学报:自然科学版,2008,38(5):784-787(Yuan Yong,Xiong Shishu,Zhou Hongping.Effect of loading ratio on results of real-time substructure hybrid experiment based on velocity control[J].Journal of Southeast University:Natural Science Edition,2008,38(5):784-787(in Chinese))
[3]李进,王焕定,张永山,等.高阶单步实时动力子结构试验技术研究[J].地震工程与工程振动,2005,25(1):97-101(Li Jin,Wang Huanding,Zhang Yongshan,et al.The research of a high order single step method for realtime substructure testing[J].Earthquake Engineering and Engineering Vibration,2005,25(1):97-101(in Chinese))
[4]汪强,王进廷,金峰,等.基于振动台的RTDHT试验及其在双层刚架结构上的应用[J].工程力学,2010,27(10):57-64(Wang Qiang,Wang Jingting,Jing Feng,et al.Realtime dynamic hybrid testing based on shaking-table and its application to a two storey rigid frame[J].Engineering Mechanics,2010,27(10):57-64(in Chinese))
[5]王向英,田石柱.子结构地震模拟振动台混合试验原理与实现[J].地震工程与工程振动,2009,29(4):46-54(Wang Xiangying,Tian Shizhu.Principle and implementation of the hybrid testing method based on substructure techniques byusing shaking table[J].Journal of Earthquake Engineering and Engineering Vibration,2009,29(4):46-54(in Chinese))
[6]Horiuchi T,Inoue M,Konno T.Development of a real-time hybrid experimental system using a shaking table[C]//Proc.12th World Conf.Earthquake Engineering.Auckland,New Zealand,2000
[7]Lee S K,Park E C,Min K W,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
[8]Wu B,Deng L,Yang X.Stability of central difference method for dynamic real‐time substructure testing[J].Earthquake Engineering&Structural Dynamics,2009,38(14):1649-1663
[9]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 amper[J].Technology for Earthquake Disaster Prevention,2010,5(1):9-19(in Chinese))
[10]徐景锋.考虑SSI效应储油罐抗震性能振动台子结构实验研究[D].哈尔滨:哈尔滨工业大学,2013(Xu Jingfeng.Shaking table substructure tests of storage tanks considering SSI[D].Harbin:Harbin Institute of Technology,2013(in Chinese))
[11]Tamura Y,Fujii K,Ohtsuki T,et al.Effectiveness of tuned liquid dampers under wind excitation[J].Engineering Structures,1995,17(9):609-621
[12]Chang C C,Qu W L.Unified dynamic absorber design formulas for wind-induced vibration control of tall buildings[J].The structural design of tall buildings,1998,7(2):147-166
[13]Zhou H,Wu B,Wagg D J,et al.Equivalent force control with adaptive forward prediction for real-time hybrid simulation[C].6th World Conference on Structure Control and Health Monitoring.Barcelona,Spain,2014
[14]Fujino Y,Pacheco B M,Chaiseri P,et al.Parametric studies on tuned liquid damper(TLD)using circular containers by free-oscillation experiments[J].Structural Engineering/Earthquake Engineering,1988,5(2):381-391
[15]周惠蒙,吴斌.振动台混合试验平台的验证性研究[J].振动工程学报,2013,26(4):500-505(Zhou Huimeng,Wu Bin.Validation study of shaking table hybrid test platform[J].Journal of Vibration Engineering,2013,26(4):500-505(in Chinese))
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