超高层建筑结构最不利地震动的选取方法
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- 英文论文题名：Selection of the most unfavorable real ground motions for super high-rise building
- 论文作者：李奕慧 ; 何政
- 英文论文作者：Li Yihui ; He Zheng ; Dalian University of science and technology
- 年：2016
- 作者机构：大连理工大学土木工程学院;
- 论文关键词：最不利地震动 ; 超高层结构 ; 时程分析 ; 相关性分析方法
- 英文论文关键词：the most unfavorable ground motion ; super high-rise structure ; time-history analyzing ; correlation analysis method
- 会议召开时间：2016-10-27
- 会议录名称：第九届全国防震减灾工程学术研讨会论文集
- 语种：中文
- 分类号：TU973.31
- 学会代码：OGTY
- 会议名称：第九届全国防震减灾工程学术研讨会
- 会议地点：中国安徽合肥
- 主办单位：中国土木工程学会、中国工程院土木、水利与建筑工程学部、中国土木工程学会防震减灾工程技术推广委员会、合肥工业大学、安徽省住房和城乡建设厅
- 学会名称：中国土木工程学会
- 页数：10
- 文件大小：456k
- 原文格式：O
- 会议级别：全国
摘要
最不利地震动的选取可确定结构在一定强度地震动下的结构响应的极限状态,因此对于避免重要结构在强震下发生倒塌或者严重破坏具有指导意义。采用地震动强度指标与结构响应相关性(分别计算了两种地震动强度指标)、现有天际线算法以及估计地震动潜在破坏势的综合评定法三种最不利地震动选取方法,针对三个不同高度(258m,580m以及660m)超高层建筑结构,从3297条备选地震动记录选了12组地震动记录。对三个结构进行非线性动力时程分析,通过比较不同PGA水平下的层间位移角,发现采用PGV和S_a(T_1)组合的地震动强度指标确定的最不利地震动,求得的层间位移角最大。结果表明从相关性的角度选择针对超高层结构最不利地震动是最有效的方法。
The selection of the most unfavorable ground motions has a great significance in estimating the structures to an extreme limit state and in the avoidance of the severe damage or collapse of important structures.By performing correlation analysis method(two different ground motion intensity measures),the skyline query algorithm and the damaged—potential—based method,4 groups of ground motions are selected for each of three structures,which has 61 stories,118 stories,128 stories,respectively.After performing nonlinear dynamic time—history analyses,the inter—story drift ratios of three structures under the action of ground motions with multifarious peak ground motion acceleration(PGA) are compared.It is found that the inter — story drift ratio resulted from the most unfavorable ground motion given by the correlation analysis method possesses a highest value.The correlation analysis method is thus proved to be the most adequate for super high— rise buildings.
The selection of the most unfavorable ground motions has a great significance in estimating the structures to an extreme limit state and in the avoidance of the severe damage or collapse of important structures.By performing correlation analysis method(two different ground motion intensity measures),the skyline query algorithm and the damaged—potential—based method,4 groups of ground motions are selected for each of three structures,which has 61 stories,118 stories,128 stories,respectively.After performing nonlinear dynamic time—history analyses,the inter—story drift ratios of three structures under the action of ground motions with multifarious peak ground motion acceleration(PGA) are compared.It is found that the inter — story drift ratio resulted from the most unfavorable ground motion given by the correlation analysis method possesses a highest value.The correlation analysis method is thus proved to be the most adequate for super high— rise buildings.
引文
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[4]Zhai Changhai,Chang Zhiwang,Li Shuang,Xie Lili.Selection of the most unfavorable real ground motions for low-and mid-rise RC frame structures[J].Journal of Earthquake Engineering,2013,17(8):1233-1251.
[5]卢啸,陆新征,叶列平.超高层建筑地震动强度指标探讨[J].土木工程学报,2012,45(S1):292-296(Lu Xiao,Lu Xinzheng,Ye Lieping.Discussion on the ground motion intensity measures for super high-rise buildings[J].China Civil Engineering Journal,2012,45(S1):292-296(in Chinese)).
[6]Lu Xiao,Ye Lieping,Lu Xinzheng,et al.An improved ground motion intensity measure for super high-rise buildings[J].Science China Technological Sciences,2013,56(6):1525-1533.
[7]Ancheta T D,Darragh R B,Stewart J P,Seyhan E,Silva W J,Chiou B S J,Wooddell K E,Graves R W,Kottke A R.,Boore D M,Kishida T,Donahue J L.NGA-West2 database[J].Earthquake Spectra,2014,30(3):989-1005.
[8]吕西林,姜淳,蒋欢军.超高层建筑结构benchmark模型及其地震反应分析.结构工程师。2015,31(4):100-107.
[9]FU S,HE Z,LI Z,TU X,and TAO Q.Shared memory parallel computing procedures for nonlinear dynamic analysis of super high-rise buildings[C].The Second International Conference on Performance-based and Life-cycle Structural Engineering(PLSE 2015),Brisbane,Australia.
[2]Zhai Changhai,Xie Lili.A new approach of selecting real input ground motions for seismic design:The most unfavorable real seismic design ground motions[J].Earthquake Engineering and Structural Dynamics,2007,36(8):1009-1027.
[3]施炜,潘鹏,叶列平,王朝坤,徐亚军.基于天际线查询的最不利地震动选取方法研究[J].建筑结构学报,2013,34(7):20-28(Shi Wei,Pan Peng,Ye Lieping,Wang Chaokun,Xu Yajun.Skylinebased most unfavorable earthquake ground motion selection procedure based on skyline query[J].Journal of Building Structures,2013,34(7):20-28(in Chinese)).
[4]Zhai Changhai,Chang Zhiwang,Li Shuang,Xie Lili.Selection of the most unfavorable real ground motions for low-and mid-rise RC frame structures[J].Journal of Earthquake Engineering,2013,17(8):1233-1251.
[5]卢啸,陆新征,叶列平.超高层建筑地震动强度指标探讨[J].土木工程学报,2012,45(S1):292-296(Lu Xiao,Lu Xinzheng,Ye Lieping.Discussion on the ground motion intensity measures for super high-rise buildings[J].China Civil Engineering Journal,2012,45(S1):292-296(in Chinese)).
[6]Lu Xiao,Ye Lieping,Lu Xinzheng,et al.An improved ground motion intensity measure for super high-rise buildings[J].Science China Technological Sciences,2013,56(6):1525-1533.
[7]Ancheta T D,Darragh R B,Stewart J P,Seyhan E,Silva W J,Chiou B S J,Wooddell K E,Graves R W,Kottke A R.,Boore D M,Kishida T,Donahue J L.NGA-West2 database[J].Earthquake Spectra,2014,30(3):989-1005.
[8]吕西林,姜淳,蒋欢军.超高层建筑结构benchmark模型及其地震反应分析.结构工程师。2015,31(4):100-107.
[9]FU S,HE Z,LI Z,TU X,and TAO Q.Shared memory parallel computing procedures for nonlinear dynamic analysis of super high-rise buildings[C].The Second International Conference on Performance-based and Life-cycle Structural Engineering(PLSE 2015),Brisbane,Australia.