全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于IDA的多层钢筋混凝土框架残余侧移分析

DOI: 10.13197/j.eeev.2015.05.54.hanjp.009, PP. 54-60

Keywords: 钢筋混凝土框架结构,地震动强度指标,最大层间侧移角,残余层间侧移角,增量动力分析

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用OpenSees非线性有限元软件对6层钢筋混凝土平面框架结构进行数值模拟。首先选取24条地震动记录,通过对比分析两个不同地震动强度指标对残余侧移响应离散性的影响,选取合理的地震动强度指标。然后采用Sa(T1,5%)调整24条地震动记录,使其成为具有多重强度水平的地震动记录。对该模型进行增量动力分析,得到各层的残余层间侧移角和最大层间侧移角并比较残余侧移和最大侧移的分布规律,分析了结构的残余侧移随最大侧移的变化过程以及两者的相关系数,发现两者的相关性较好,这表明可以根据震后残余层间侧移角估计最大层间侧移角。另外,也分别分析了基于弹塑性层间侧移角限值和倒塌临界状态的残余层间侧移角概率分布,结果表明结构的最大层间侧移角达到抗规限值0.02后,结构仍然有较大的塑性变形发展。

References

[1]  Yazgan U, Dazio A. Simulating maximum and residual displacements of RC structures:I. Accuracy[J]. Earthquake Spectra, 2011, 27(4):1187-1102.
[2]  Yazgan U, Dazio A. Simulating maximum and residual displacements of RC structures:II. Sensitivity[J]. Earthquake Spectra, 2011, 27(4):1203-1218.
[3]  Uma S R, Pampanin S, Christopoulos C. Development of probabilistic framework for performance-based seismic assessment of structures considering residual deformations[J]. Journal of Earthquake Engineering, 2010, 14(7):1092-1111.
[4]  Bojórquez E, García J R. Residual drift demands in moment-resisting steel frames subjected to narrow-band earthquake ground motions[J]. Earthquake Engineering and Structural Dynamics, 2013, 36(12):1763-1783.
[5]  郝建兵, 吴 刚, 吴智深. SDOF体系残余变形响应与地震强度指标相关性分析[J]. 土木工程学报, 2013, 46(6):1-7. HAO Jianbing, WU Gang, WU Zhishen. Correlation analysis between residual deformation of SDOF system and ground motion intensity indices[J]. China Civil Engineering Journal, 2013, 46(6):1-7.(in Chinese)
[6]  Applied Technology Council. FEMA P695, Quantification of building seismic performance factors[R]. Redwood City, California:2009.
[7]  GB50011-2010建筑抗震设计规范[S]. 北京:中国建筑工业出版社, 2010. GB50011-2010 Code for Seismic Design of Buildings[S]. Beijing:China Architecture & Building Press, 2010.(in Chinese)
[8]  Macraem G A, Kawashima K. Post-earthquake residual displacements of bilinear oscillators[J]. Earthquake Engineering and Structural Dynamics, 1997, 26(7):701-716.
[9]  Christopoulos C, Pampanin S, Priestley M J N. Performance-based seismic response of frame structures including residual deformations. Part I:Single-degree-of-freedom systems[J]. Journal of Earthquake Engineering, 2003, 7(1):97-118.
[10]  Christopoulos C, Pampanin S, Priestley M J N. Performance-based seismic response of frame structures including residual deformations. Part II:Multi-degree-of-freedom systems[J]. Journal of Earthquake Engineering, 2003, 7(1):119-147.
[11]  Christopoulos C, Pampanin S. Towards performance-based seismic design of MODF structures with explicit consideration of seismic deformations[J]. ISET Journal of Earthquake Technology, 2004, 41(1):53-73.
[12]  Pettinga D, Christopoulos C, Pampanin S, et al. Effectiveness of simple approaches in mitigating residual deformations in buildings[J]. Earthquake Engineering and Structural Dynamics, 2007, 36(12):1763-1783.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133