水电站地面厂房鞭梢效应及抗震分析
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摘要
以某水电站地面厂房为例,研究了厂房上部结构在地震中的鞭梢效应,探讨了鞭梢效应的成因和机理,根据水电站厂房的几何构造、受力特点和动力特性建立了整体和局部模型,并采用时程分析法对比分析了不同模型在地震中的动力响应。结果表明,从基础传来的地震波经厂房下部结构放大后,对上部结构的地震反应影响显著,而上部结构的鞭梢效应也对下部结构的地震响应有一定的影响。
Taking the power house of ground hydropower station for an example,the whiplash effect of superstructure of power house in the earthquake is researched in this paper.The cause and mechanism of the whiplash effect are studied.The integrated model and partial model are established on the basis of geometric construction,mechanical and dynamic characteristics of the power house.The seismic responses of different models in the earthquake are compared by using time-history analysis.The results show that the seismic wave propagated from foundation and amplified by the substructure has significant effect on seismic responses of the superstructure;the whiplash effect of superstructure has a certain impact on seismic responses of substructure.
Taking the power house of ground hydropower station for an example,the whiplash effect of superstructure of power house in the earthquake is researched in this paper.The cause and mechanism of the whiplash effect are studied.The integrated model and partial model are established on the basis of geometric construction,mechanical and dynamic characteristics of the power house.The seismic responses of different models in the earthquake are compared by using time-history analysis.The results show that the seismic wave propagated from foundation and amplified by the substructure has significant effect on seismic responses of the superstructure;the whiplash effect of superstructure has a certain impact on seismic responses of substructure.
引文
[1]晏志勇.汶川地震灾区大中型水电工程震损调查与分析[M].北京:中国水利水电出版社,2009.
[2]裘民川.水电站厂房的抗震设计问题[J].工程抗震,1997(2):1-5.
[3]丁幼亮.带钢塔楼高层建筑的抗震设计方法研究[D].南京:东南大学,2003.
[4]Wang Jerfu,Lin Chichang.Seismic Performance ofMultiple Tuned Mass Dampers for Soil-irregularBuilding Interaction Systems[J].International Jour-nal of Solids and Structures,2005(42):5 536-5 554.
[5]Zhang Yaohua,Liang Qizhi.A Study on the Interac-tion between the Primary and Secondary Structuresof Combined Structures[J].Journal of Sound andVibration,2000,236(3):529-545.
[6]Villaverde R.Seisemic Design of Secondary Structures:State of the Art[J].Journal of Structural Engineer-ing,1997,123(8):1 011-1 019.
[7]张启灵,伍鹤皋.行波效应对大型水电站厂房地震响应的影响[J].振动与冲击,2010,29(6):76-79.
[8]程恒,张燎军,林斌,等.水电站厂房钢管混凝土排架柱结构抗震性能[J].河海大学学报(自然科学版),2009,37(5):586-590.
[9]陈鹏,刘文锋,付兴潘.关于场地卓越周期和特征周期的若干讨论[J].青岛理工大学学报,2009,30(6):30-35.
[10]钟万勰,林家浩.高层建筑振动的“鞭梢效应”[J].振动与冲击,1985(2):1-6.
[11]中国建筑科学研究院,中国地震局工程力学研究所,中国建筑技术研究院,等.建筑抗震设计规范(GB50011-2001)[S].北京:中国建筑工业出版社,2001.
[12]张辉东,王日宣,王元丰.大型水电站厂房结构地震时程响应非线性数值模拟[J].水力发电学报,2007,26(4):96-102.
[13]中国水利水电科学研究院.水工建筑物抗震设计规范(DL5073-2000)[S].北京:中国电力出版社,2001.
[2]裘民川.水电站厂房的抗震设计问题[J].工程抗震,1997(2):1-5.
[3]丁幼亮.带钢塔楼高层建筑的抗震设计方法研究[D].南京:东南大学,2003.
[4]Wang Jerfu,Lin Chichang.Seismic Performance ofMultiple Tuned Mass Dampers for Soil-irregularBuilding Interaction Systems[J].International Jour-nal of Solids and Structures,2005(42):5 536-5 554.
[5]Zhang Yaohua,Liang Qizhi.A Study on the Interac-tion between the Primary and Secondary Structuresof Combined Structures[J].Journal of Sound andVibration,2000,236(3):529-545.
[6]Villaverde R.Seisemic Design of Secondary Structures:State of the Art[J].Journal of Structural Engineer-ing,1997,123(8):1 011-1 019.
[7]张启灵,伍鹤皋.行波效应对大型水电站厂房地震响应的影响[J].振动与冲击,2010,29(6):76-79.
[8]程恒,张燎军,林斌,等.水电站厂房钢管混凝土排架柱结构抗震性能[J].河海大学学报(自然科学版),2009,37(5):586-590.
[9]陈鹏,刘文锋,付兴潘.关于场地卓越周期和特征周期的若干讨论[J].青岛理工大学学报,2009,30(6):30-35.
[10]钟万勰,林家浩.高层建筑振动的“鞭梢效应”[J].振动与冲击,1985(2):1-6.
[11]中国建筑科学研究院,中国地震局工程力学研究所,中国建筑技术研究院,等.建筑抗震设计规范(GB50011-2001)[S].北京:中国建筑工业出版社,2001.
[12]张辉东,王日宣,王元丰.大型水电站厂房结构地震时程响应非线性数值模拟[J].水力发电学报,2007,26(4):96-102.
[13]中国水利水电科学研究院.水工建筑物抗震设计规范(DL5073-2000)[S].北京:中国电力出版社,2001.
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