近断层地震动运动特征对组合隔震体系减震性能的影响
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摘要
输入近断层地震记录,考察了破裂向前方向性和滑冲效应脉冲对组合隔震体系减震性能的影响.研究表明,滑冲效应脉冲比破裂向前方向性脉冲对组合隔震结构更具有破坏性,在破裂向前方向性脉冲地震作用下,LRB隔震体系的隔震效果比组合隔震体系的效果稍好.在滑冲效应脉冲地震作用下,采用组合隔震体系可有效减小隔震层的位移幅值,但隔震结构的顶层加速度峰值和基底剪力略有增大.
Inputting near-fault seismic records,the effect of rupture forward directivity and fling-step pulse on damping performance of combined isolation system is investigated. Research indicates that the fling-step pulse is more destructive than the rupture forward directivity pulse for combined isolation system. The isolation effect of LRB isolation system is slightly better than the combined isolation system under the rupture forward directivity pulse earthquake. The combined isolation system can reduce effectively the displacement amplitude of isolation layer under the fling-step effect earthquake,but the peak acceleration on the top and the base shear of the isolated structure increase slightly.
Inputting near-fault seismic records,the effect of rupture forward directivity and fling-step pulse on damping performance of combined isolation system is investigated. Research indicates that the fling-step pulse is more destructive than the rupture forward directivity pulse for combined isolation system. The isolation effect of LRB isolation system is slightly better than the combined isolation system under the rupture forward directivity pulse earthquake. The combined isolation system can reduce effectively the displacement amplitude of isolation layer under the fling-step effect earthquake,but the peak acceleration on the top and the base shear of the isolated structure increase slightly.
引文
[1]Liao W I,Loh C H,Wan S.Earthquake response of RC moment frames subjected to near-fault ground motions[J].The Structural Design of Tall Buildings,2001,10(3):219-229.
[2]Mavroeidis G P,Dong G,Papageorgiou A S.Near-fault ground motions,and the response of elastic and inelastic singledegree-of-freedom system[J].Earthquake Engineering and Structural Dynamics,2004,33(9):1023-1049.
[3]刘启方,袁一凡,金星,等.近断层地震动的基本特征[J].地震工程与工程振动,2006,26(1):1-10
[4]王海云,谢礼立.近断层强地震动的特点[J].哈尔滨工业大学学报,2006,38(12):2070-2076.
[5]Kalkan E,Kunnath S K.Effects of fling step and forward directivity on seismic response of buildings[J].Earthquake Spectra,2006,22(2):367-390.
[6]Jangid R S.Optimum lead-rubber isolation bearings for near fault motions[J].Engineering structures,2007,29(10):2503-2513.
[7]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.
[8]杨迪雄,赵岩,李刚.近断层地震动运动特征对长周期结构地震响应的影响分析[J].防灾减灾工程学报,2007,27(2):133-140.
[9]党育,霍凯成.近断层地震各因素对基础隔震结构的影响[J].武汉理工大学学报,2009,31(14):72-77.
[10]包华,洪俊青.近断层地震作用下基础隔震结构的振动分析[J].工程抗震与加固改造,2011,33(6):38-44.
[11]陈通,翁大根,胡岫岩,等.考虑近断层地震的隔震结构增设粘滞阻尼器效果分析[J].结构工程师,2013,29(1):92-99.
[12]魏俊杰,樊剑,王志彤.近断层地震作用下混合阻尼隔震结构的响应分析[J].工程抗震与加固改造,2007,29(5):21-24.
[13]Bray J D,Rodriguez Marek A.Characterization of forward-directivity ground motions in the near-fault region[J].Soil Dynamics and Earthquake Engineering,2004,24(5):815-828.
[14]Faccioli E,Paolucci R,Rey J.Displacement spectra for long periods[J].Earthquake Spectra,2004,20(2):347-376.
[15]日本建筑学会.隔震结构设计[M].刘文光,译.北京:地震出版社,2006.
[2]Mavroeidis G P,Dong G,Papageorgiou A S.Near-fault ground motions,and the response of elastic and inelastic singledegree-of-freedom system[J].Earthquake Engineering and Structural Dynamics,2004,33(9):1023-1049.
[3]刘启方,袁一凡,金星,等.近断层地震动的基本特征[J].地震工程与工程振动,2006,26(1):1-10
[4]王海云,谢礼立.近断层强地震动的特点[J].哈尔滨工业大学学报,2006,38(12):2070-2076.
[5]Kalkan E,Kunnath S K.Effects of fling step and forward directivity on seismic response of buildings[J].Earthquake Spectra,2006,22(2):367-390.
[6]Jangid R S.Optimum lead-rubber isolation bearings for near fault motions[J].Engineering structures,2007,29(10):2503-2513.
[7]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.
[8]杨迪雄,赵岩,李刚.近断层地震动运动特征对长周期结构地震响应的影响分析[J].防灾减灾工程学报,2007,27(2):133-140.
[9]党育,霍凯成.近断层地震各因素对基础隔震结构的影响[J].武汉理工大学学报,2009,31(14):72-77.
[10]包华,洪俊青.近断层地震作用下基础隔震结构的振动分析[J].工程抗震与加固改造,2011,33(6):38-44.
[11]陈通,翁大根,胡岫岩,等.考虑近断层地震的隔震结构增设粘滞阻尼器效果分析[J].结构工程师,2013,29(1):92-99.
[12]魏俊杰,樊剑,王志彤.近断层地震作用下混合阻尼隔震结构的响应分析[J].工程抗震与加固改造,2007,29(5):21-24.
[13]Bray J D,Rodriguez Marek A.Characterization of forward-directivity ground motions in the near-fault region[J].Soil Dynamics and Earthquake Engineering,2004,24(5):815-828.
[14]Faccioli E,Paolucci R,Rey J.Displacement spectra for long periods[J].Earthquake Spectra,2004,20(2):347-376.
[15]日本建筑学会.隔震结构设计[M].刘文光,译.北京:地震出版社,2006.
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