[1]代慧娟,白国良,王 博,等.近断层滑冲型地震动频谱特性及强度指标研究[J].西安建筑科技大学学报:自然科学版,2013,45(03):383-390.[doi:10.15986/j.1006-7930.2013.03.014]
　DAI Hui-juan,BAI Guo-liang,WANG Bo,et al.Study on spectral characteristics and intensity indices ofnear-fault fling-step-type ground motions[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(03):383-390.[doi:10.15986/j.1006-7930.2013.03.014]
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近断层滑冲型地震动频谱特性及强度指标研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
45
期数:
2013年03期
页码:
383-390
栏目:
出版日期:
2013-06-30

文章信息/Info

Title:
Study on spectral characteristics and intensity indices ofnear-fault fling-step-type ground motions
文章编号:
1006-7930(2013)03-0383-08
作者:
代慧娟1; 2; 白国良1; 王 博1; 王超群1; 李 贞1
(1.西安建筑科技大学土木工程学院,陕西 西安 710055;2.西安科技大学建筑与土木工程学院,陕西 西安 710054)
Author(s):
DAI Hui-juan1; 2; BAI Guo-liang1; WANG Bo1; WANG Chao-qun1; LI Zhen1
(1.School of Civil Engineering, Xian Univ. of Arch.& Tech., Xian 710055,China; 2.School of Architecture and Civil Engineering, Xian University of Science and Technology, Xian 710054, China)
关键词:
近断层滑冲型地震动; 频谱特性; 强度指标; 双线性单自由度体系; 相关性分析
Keywords:
near-fault fling-step-type ground motions;  spectral characteristics;  intensity indices;  bilinear SDOF systems;  correlation analysis
分类号:
P 315.9
DOI:
10.15986/j.1006-7930.2013.03.014
文献标志码:
A
摘要:
我国抗震规范对近断层滑冲型地震动未进行专门规定.通过与普通地震动的反应谱及周期参数的对比分析,探讨近断层滑冲型地震动的频谱特性,并通过分析近断层滑冲型地震动典型强度指标与双线性单自由度体系最大响应的相关性,探讨结构地震反应分析时强度指标的选取问题.结果表明:近断层滑冲型地震动的平均加速度反应谱、速度反应谱、位移反应谱、输入能量谱与滞回耗能谱均明显大于普通地震动,且两类地震动的放大系数具有一定的分布规律;近断层滑冲型地震动各周期参数均明显大于普通地震动,但不同周期参数的变异系数差别较大,各周期参数间的相关性也有较大不同;在进行近断层滑冲型地震动作用下的结构地震反应分析时,建议对短周期结构采用峰值加速度选择与调整地震动输入,而对中、长周期结构采用峰值速度选择与调整地震动输入
Abstract:
The current China Seismic Code has no special provisions about near-fault fling-step-type ground motions. The spectral characteristics are explored according to the comparative analysis including period response spectrums and period parameters between near-fault fling-step-type ground motions and ordinary ground motions. Besides, in order to explore the selection problems of the intensity indices for seismic response analysis, correlation between intensity indices and bilinear single degree-of-freedom(SDOF)system responses for near-fault fling-step-type ground motions are discussed. The results show that:(1)Response spectrums corresponding to near-fault fling-step-type ground motions are greater than ordinary ground motions. The average peak amplification coefficients of the two types of ground motions have a certain distribution law.(2)All period parameters of near-fault fling-step-type ground motions are significantly higher than ordinary ground motions. Coefficients of variation for different period parameters are different, and the correlation among each period parameter is also different.(3)For short-period structures, peak ground acceleration(PGA)index is advised to be the same as the index for selecting and adjusting ground motion inputs. For medium-to-long period structures, peak ground velocity(PGV)index is advised to be the same as the index for selecting and adjusting ground motion inputs

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备注/Memo

备注/Memo:
收稿日期:2012-12-31 修改稿日期:2013-05-16
基金项目:国家自然科学基金资助项目(51178383);国家科技支撑计划合作单位项目(2011BAJ08B05-4,2012BAJ19B04-02)
作者简介:代慧娟(1985-),女,河南洛阳人,博士,主要从事工程结构抗震研究工作.
更新日期/Last Update: 2015-10-05