速度脉冲地震作用下竖向不规则RC结构抗震位移需求分析
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摘要
采用8条强速度脉冲地震记录,通过弹塑性增量动力时程分析,研究不同地震动强度水平时竖向不规则质量和刚度布置对钢筋混凝土框架结构抗震位移需求的影响.分析结果表明:速度脉冲地震作用下,楼层质量和刚度突变对结构位移需求有很大影响,地震动强度水平越大影响越显著;顶层质量突变对结构位移需求的影响较大,下部楼层刚度突变对结构位移需求和延性需求的影响很大.
Selected eight pulse-like ground motions for dynamic time-history analysis,this work investigates the influence of mass irregular or stiffness irregular reinforced concrete frame structures on seismic displacement demand.The results demonstrate that mass and stiffness discontinuity have importance influence on structural seismic displacement response,and seismic displacement response increases with increasing ground motion intensity.Top mass and lower stiffness variation both have relatively higher influence on structural displacement demand.
Selected eight pulse-like ground motions for dynamic time-history analysis,this work investigates the influence of mass irregular or stiffness irregular reinforced concrete frame structures on seismic displacement demand.The results demonstrate that mass and stiffness discontinuity have importance influence on structural seismic displacement response,and seismic displacement response increases with increasing ground motion intensity.Top mass and lower stiffness variation both have relatively higher influence on structural displacement demand.
引文
[1]BERTERO VV,MAHINS A,HERRERARA.Aseismic design implication of near-fault san fernando earthquake records[J].EarthquakeEngineering and Structural Dynamics,1978,6(1):31-42.
[2]KRAWINKLER H,MEDINA R,ALAVI B.Seismic drift and ductility demands and their dependence on ground motions[J].EngineeringStructures,2003,25(5):637-653.
[3]ALAVI B,KRAWINKLER H.Consideration of near-fault ground motion effects in seismic design[C].Proceedings of 12th World Confer-ence on Earthquake Engineering,New Zealand,2000,No.2 665.
[4]ANDERSON J C,VITELMO V,BERTERO R.Performance improvement of long period building structures subjected to pulse-type groundmotions[R].Pacific Earthquake Engineering Research Center,University of California,Berkeley,1999.
[5]赵凤新,韦韬,张郁山.近断层速度脉冲对钢筋混凝土框架结构地震反应的影响[J].工程力学,2008,25(10):180-186.
[6]易伟建,张冰.近场地震作用下框架结构的损伤机理[J].自然灾害学报,2007,16(2):112-117.
[7]杨迪雄,李刚,程耿东.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程与工程振动,2005,25(2):119-124.
[8]唐玉红,张敏政,戴君武.钢筋混凝土结构在近场脉冲型地震作用下的试验分析[J].世界地震工程,2007,23(3):41-46.
[9]卢明奇,田玉基,杨庆山.近断层地震作用下高层建筑结构地震响应分析[J].哈尔滨工业大学学报,2007,39(2):314-317.
[10]杨迪雄,潘建伟,李刚.近断层脉冲型地震动作用下建筑结构的层间变形分布特征和机理分析[J].建筑结构学报,2009,30(4):108-118.
[11]翟长海,谢礼立.近场脉冲效应对强度折减系数的影响分析[J].土木工程学报,2006,39(7):15-18.
[12]BAKER J W.Quantitative classification of near-fault ground motions using wavelet analysis[J].Bulletin of the Seismological Society of A-merica,2007,97(5):1 486-1 501.
[13]ZEUS N L.Asystem for inelastic analysis of structures-user manual[CP].Mid-America Earthquake Center.http://mae.cee.uiuc.edu//software_and_tools,2010-05-11.
[14]MADAS P,ELNASHAI AS.Anewpassive confinement model for transient analysis of reinforced concrete structures[J].Earthquake En-gineering and Structural Dynamics,1992,21(5):409-431.
[2]KRAWINKLER H,MEDINA R,ALAVI B.Seismic drift and ductility demands and their dependence on ground motions[J].EngineeringStructures,2003,25(5):637-653.
[3]ALAVI B,KRAWINKLER H.Consideration of near-fault ground motion effects in seismic design[C].Proceedings of 12th World Confer-ence on Earthquake Engineering,New Zealand,2000,No.2 665.
[4]ANDERSON J C,VITELMO V,BERTERO R.Performance improvement of long period building structures subjected to pulse-type groundmotions[R].Pacific Earthquake Engineering Research Center,University of California,Berkeley,1999.
[5]赵凤新,韦韬,张郁山.近断层速度脉冲对钢筋混凝土框架结构地震反应的影响[J].工程力学,2008,25(10):180-186.
[6]易伟建,张冰.近场地震作用下框架结构的损伤机理[J].自然灾害学报,2007,16(2):112-117.
[7]杨迪雄,李刚,程耿东.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程与工程振动,2005,25(2):119-124.
[8]唐玉红,张敏政,戴君武.钢筋混凝土结构在近场脉冲型地震作用下的试验分析[J].世界地震工程,2007,23(3):41-46.
[9]卢明奇,田玉基,杨庆山.近断层地震作用下高层建筑结构地震响应分析[J].哈尔滨工业大学学报,2007,39(2):314-317.
[10]杨迪雄,潘建伟,李刚.近断层脉冲型地震动作用下建筑结构的层间变形分布特征和机理分析[J].建筑结构学报,2009,30(4):108-118.
[11]翟长海,谢礼立.近场脉冲效应对强度折减系数的影响分析[J].土木工程学报,2006,39(7):15-18.
[12]BAKER J W.Quantitative classification of near-fault ground motions using wavelet analysis[J].Bulletin of the Seismological Society of A-merica,2007,97(5):1 486-1 501.
[13]ZEUS N L.Asystem for inelastic analysis of structures-user manual[CP].Mid-America Earthquake Center.http://mae.cee.uiuc.edu//software_and_tools,2010-05-11.
[14]MADAS P,ELNASHAI AS.Anewpassive confinement model for transient analysis of reinforced concrete structures[J].Earthquake En-gineering and Structural Dynamics,1992,21(5):409-431.
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