【作者】 陆铁坚； 李芳； 余志武；

【Author】 Lu Tiejian Li Fang Yu Zhiwu (College of Civil Architectural Engineering,Central South University,Changsha 410075,P.R.China)

【机构】 中南大学土木建筑学院；

【摘要】 本文进行了高层结构在地震动作用下的随机振动反应分析。选择了合理的水平、摇摆功率谱数学模型,简化高层结构为层间剪切模型,建立了结构在水平与摇摆联合作用下的随机振动方程,导出了结构的均方反应公式。最后,把功率谱模型作为输入,进行了实际结构的数值计算。结果表明,地震动摇摆分量对高层结构的位移影响较大,不可忽视。更多还原

【Abstract】 In this paper,random response analysis of tall building under ground motions is made.Rational mathe- matical models of horizontal and rocking spectra are established,and tall building is simpled with shear mode,ran- dom vibration equation of structures due to the combined action of horizontal and rocking ground motions is de- rived,a set of formulas are given to calculate the mean-square response.Finally,spectra models are input and a set of practical structures are calculated.The results show that rocking component of ground motions has great effect on tall building.更多还原