杨成, 康军立, 张斌, 李英民. 滞回模型修正和地震动特征对IDA的影响分析[J]. 工程力学, 2014, 31(增刊): 253-257. DOI: 10.6052/j.issn.1000-4750.2013.04.S049
引用本文: 杨成, 康军立, 张斌, 李英民. 滞回模型修正和地震动特征对IDA的影响分析[J]. 工程力学, 2014, 31(增刊): 253-257. DOI: 10.6052/j.issn.1000-4750.2013.04.S049
YANG Cheng, KANG Jun-li, ZHANG Bin, LI Ying-min. EFFECT OF HYSTERETIC MODEL AND PEAK GROUND ACCELERATION TO VELOCITY RATIO ON IDA ANALYSIS[J]. Engineering Mechanics, 2014, 31(增刊): 253-257. DOI: 10.6052/j.issn.1000-4750.2013.04.S049
Citation: YANG Cheng, KANG Jun-li, ZHANG Bin, LI Ying-min. EFFECT OF HYSTERETIC MODEL AND PEAK GROUND ACCELERATION TO VELOCITY RATIO ON IDA ANALYSIS[J]. Engineering Mechanics, 2014, 31(增刊): 253-257. DOI: 10.6052/j.issn.1000-4750.2013.04.S049

滞回模型修正和地震动特征对IDA的影响分析

EFFECT OF HYSTERETIC MODEL AND PEAK GROUND ACCELERATION TO VELOCITY RATIO ON IDA ANALYSIS

  • 摘要: 为了研究滞回模型和典型地震动信号特征差异对IDA曲线的影响,基于Bouc-Wen模型的Barber捏缩及强度退化修正以及地震动PGA/PGV值,针对弹塑性结构模型进行了IDA分析。对单质点模型建立了IDA曲面,分析了IDA曲线形状随PGA/PGV值的变化规律;分析了多质点层模型不同楼层的最大层间侧移角比值IDA曲线受PGA/PGV值变化的影响。计算结果表明:在IDA曲线的抬升梯度和结构弹塑性损伤在结构体系内的分布特征都随PGA/PGV值以及滞回模型的变化而变化,且影响趋势显著。

     

    Abstract: A series of incremental dynamic analyses are performed to investigate the significance of a hysteretic model and the peak ground acceleration to the velocity ratio (PGA/PGV) on the shape of IDA curves. The Bouc-Wen model modified by Barber on the rule of pinching and strength degradation is used to represent the structural nonlinearity, and 146 earthquake records with different PGA/PGV are used as input ground motions. The curved surface composed by IDA curves according to the value of PGA/PGV is built up. The relationship between the maximum storey drift and PGA/PGV are discussed, the result presented indicate that the ground motion PGA/PGV has significant effects on IDA curve shape and structural damage distribution regularity.

     

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