橡胶-质量系统子结构振动台试验方法研究
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摘要
当遭遇地震作用时,高层建筑顶部动力反应较大。为了研究顶层建筑物内设备的安全性以及人的舒适度,采用整体结构试验和传统子结构试验受到振动台台面尺寸、承载能力、最大加速度等方面的限制。本文介绍了一种橡胶-质量系统子结构振动台试验方法来再现高层建筑遭遇地震作用时顶部结构的反应。为了使子结构能更精确地再现整体结构地震作用,采用传递函数产生一条新的输入加速度时程曲线。通过在SAP2000有限元软件中建立20层整体结构和2层子结构模型进行地震反应分析,验证了橡胶-质量系统子结构振动台试验方法的有效性和适用性。
When subjected to earthquake,high-rise buildings' upper floors undergo large responses.In order to research the equipment safety and human comfort,whole structures and traditional substructures are limited by shaking table size,mass limits,maximum acceleration and so on.In this paper,a method is presented for substructure shaking table test with rubber and mass system to reproduction the upper floor response of high-rise buildings when subjected to earthquake.Transfer function method is employed to generate the input wave to achieve an accurate reproduction between structure and substructure.The models of 20-story structure and 2story substructure are established by using the SAP2000 finite element software,and the seismic responses are analyzed.The effectiveness and applicability of the substructure shaking table test method are demonstrated.
When subjected to earthquake,high-rise buildings' upper floors undergo large responses.In order to research the equipment safety and human comfort,whole structures and traditional substructures are limited by shaking table size,mass limits,maximum acceleration and so on.In this paper,a method is presented for substructure shaking table test with rubber and mass system to reproduction the upper floor response of high-rise buildings when subjected to earthquake.Transfer function method is employed to generate the input wave to achieve an accurate reproduction between structure and substructure.The models of 20-story structure and 2story substructure are established by using the SAP2000 finite element software,and the seismic responses are analyzed.The effectiveness and applicability of the substructure shaking table test method are demonstrated.
引文
[1]邱法维.结构抗震试验方法进展[J].土木工程学报,2004,37(10):19~27Qiu Fa-wei.Development s of Seismic Testing Methodsfor Structures[J].China Civil Engineering Journal,2004,37(10):19~27(in Chinese)
[2]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)Wang Xiang-ying,Tian Shi-zhu.Principle andImplementation of Hybrid Testing Method Based onSubstructure Techniques by Using Shaking Table[J].Earthquake Engineering and Engineering Vibration,2009,29(4)(in Chinese)
[3]Masatsuki T,Midorikawa S,Ohori M,et al.Simulationfor Seismic Behavior of Office Furniture in A High-riseBuilding[J].Journal of Structural and ConstructionEngineering,2007,620:43~49
[4]Ji X D,Kajiwara K,Nagae T,et al.A SubstructureShaking Table Test for Reproduction of EarthquakeResponses of High-rise Buildings[J].EarthquakeEngineering and Structural Dynamics,2009,38:1381~1399
[5]Suita K,Kitamura Y,Gotoh T,et al.Seismic Responseof High-rise Buildings Constructed in 1970s Subjected toLong-period Ground Motions[J].Journal of Structuraland Construction Engineering,2007,611:55~61
[6]Chung Y L,Nagae T,Nakashima M.Seismic Capacityof Retrofitted Beam-column Connections in High-riseSteel Frames When Subjected to Long-period GroundMotions[J].Earthquake Engineering and StructuralDynamics,2012,41:735~753
[7]Tu J Y,Lin P Y,Stoten D P,et al.Testing ofDynamically Substructure,Base-isolated Systems UsingAdaptive Control Techniques[J].EarthquakeEngineering and Structural Dynamics,2010,39:661~681
[8]Ogata K.Modern Control Engineering[M].Prentice-Hall Inc.New Jersey,2002
[2]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)Wang Xiang-ying,Tian Shi-zhu.Principle andImplementation of Hybrid Testing Method Based onSubstructure Techniques by Using Shaking Table[J].Earthquake Engineering and Engineering Vibration,2009,29(4)(in Chinese)
[3]Masatsuki T,Midorikawa S,Ohori M,et al.Simulationfor Seismic Behavior of Office Furniture in A High-riseBuilding[J].Journal of Structural and ConstructionEngineering,2007,620:43~49
[4]Ji X D,Kajiwara K,Nagae T,et al.A SubstructureShaking Table Test for Reproduction of EarthquakeResponses of High-rise Buildings[J].EarthquakeEngineering and Structural Dynamics,2009,38:1381~1399
[5]Suita K,Kitamura Y,Gotoh T,et al.Seismic Responseof High-rise Buildings Constructed in 1970s Subjected toLong-period Ground Motions[J].Journal of Structuraland Construction Engineering,2007,611:55~61
[6]Chung Y L,Nagae T,Nakashima M.Seismic Capacityof Retrofitted Beam-column Connections in High-riseSteel Frames When Subjected to Long-period GroundMotions[J].Earthquake Engineering and StructuralDynamics,2012,41:735~753
[7]Tu J Y,Lin P Y,Stoten D P,et al.Testing ofDynamically Substructure,Base-isolated Systems UsingAdaptive Control Techniques[J].EarthquakeEngineering and Structural Dynamics,2010,39:661~681
[8]Ogata K.Modern Control Engineering[M].Prentice-Hall Inc.New Jersey,2002
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