密肋复合墙结构滞回退化参数及耗能减震性能
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摘要
基于密肋复合墙体低周反复加载试验结果,讨论一种新型建筑结构体系——密肋复合墙结构.采用Park模型,根据三参数滞回规则,对密肋复合墙体刚度退化参数、强度退化参数和捏拢滑移效应进行分析.选取具有明显速度脉冲的近场地震动作为输入波,采用非线性分析程序IDARC,对相同条件下的密肋复合墙结构和框架剪力墙结构进行近震耗能对比分析,结果表明:密肋复合墙结构能够通过多道抗震防线的损伤消耗大量地震能量,具有部分耗能减震性能.
Low cyclic revered loading experiments were conducted on specimens of multi-ribbed composite walls.On the basis of the experimental results,a structural system—multi-ribbed composite wall structure was presented.Park model was adopted to discuss stiffness and strength degradation and pinching property of the wall in accordance with the three-parameter hysteretic rules.The near-source ground motions with distinct velocity-pulse effect were chose as input wave.Under the same conditions,the energy dissipation capacity were compared between multi-ribbed composite wall structure and frame shear-wall structure incorporated in the program IDARC.The conclusion shows multi-ribbed composite wall structure consumes earthquake energy through damage of multiple seismic fortification lines with partial energy-dissipation performance.
Low cyclic revered loading experiments were conducted on specimens of multi-ribbed composite walls.On the basis of the experimental results,a structural system—multi-ribbed composite wall structure was presented.Park model was adopted to discuss stiffness and strength degradation and pinching property of the wall in accordance with the three-parameter hysteretic rules.The near-source ground motions with distinct velocity-pulse effect were chose as input wave.Under the same conditions,the energy dissipation capacity were compared between multi-ribbed composite wall structure and frame shear-wall structure incorporated in the program IDARC.The conclusion shows multi-ribbed composite wall structure consumes earthquake energy through damage of multiple seismic fortification lines with partial energy-dissipation performance.
引文
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[10]中华人民共和国建设部.GB50011—2010建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2008.
[2]Liao Wen,Loh Chinhsiung,Wan Shiuan.Earthquakeresponses of RC moment frames subjected to near-fault ground motions[J].The Structural Design ofTall Buildings,2001,11(6):219-229.
[3]Gregory A.MacRae J M.Three-dimenstional steelbuilding response to near-fault motions[J].Journal ofStructural Engineering,2000,126(1):117-126.
[4]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.
[5]袁泉.密肋壁板轻框结构非线性地震反应分析[D].西安:西安建筑科技大学土木工程学院,2003.
[6]刘海涛,姚谦峰,汪训流,等.复杂受力状态下密肋复合墙体框格有限元模拟[J].华中科技大学学报:自然科学版,2011,39(5):47-50.
[7]Baber T T,Noori M N.Random vibration of degrad-ing,pinching systems[J].Journal of EngineeringMechanics,1985,111(8):1010-1026.
[8]Sivaselvan M V,Reinhorn A M.Hysteretic modelsfor deteriorating inelastic structures[J].Journal ofEngineering Mechanics,2000,126(6):633-640.
[9]贾穗子,袁泉.近断层地震动作用下密肋复合墙结构地震反应分析[J],哈尔滨工程大学学报,2012,33(11):1366-1370.
[10]中华人民共和国建设部.GB50011—2010建筑结构抗震设计规范[S].北京:中国建筑工业出版社,2008.
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