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NONLINEAR TRANSIENT RESPONSE OF STAY CABLE WITH VISCOELASTICITY DAMPER IN CABLE-STAYED BRIDGE
作者姓名:陈水生  孙炳楠  冯义卿
作者单位:[1]SchoolofArchitectureandCivilEngineering,EastChinaJiaotongUniversity,Nanchang330013,P.R.China [2]DepartmentofCivilEngineering,ZhejiangUniversity,Hangzhou310027,P.R.China [3]HighwayDevelopmentCompanyofJiangxi,Nanchang330006,P.R.China
基金项目:theNationalNaturalScienceFoundationofJiangxiProvince (0 3 50 0 61)
摘    要:Taking the bending stiffness, static sag, and geometric non-linearity into consideration, the space nonlinear vibration partial differential equations were derived. The partical differential equations were discretized in space by finite center difference approximation, then the nonlinear ordinal differential equations were obtained. A hybrid method involving the combination of the Newmark method and the pseudo-force strategy was proposed to analyze the nonlinear transient response of the inclined cable-dampers system subjected to arbitrary dynamic loading. As an example, two typical stay cables were calculated by the present method. The results reveal both the validity and the deficiency of the viscoelasticity damper for vibration control of stay cables. The efficiency and accuracy of the proposed method is also verified by comparing the results with those obtained by using Runge-Kutta direct integration technique. A new time history analysis method is provided for the research on the stay cable vibration control.

关 键 词:瞬态响应  振动控制  非线性  结构力学  固定索  桥梁工程
收稿时间:12 March 2002

Nonlinear transient response of stay cable with viscoelasticity damper in cable-stayed bridge
Chen?Shui-sheng,Sun?Bing-nan,Feng?Yi-qing.NONLINEAR TRANSIENT RESPONSE OF STAY CABLE WITH VISCOELASTICITY DAMPER IN CABLE-STAYED BRIDGE[J].Applied Mathematics and Mechanics(English Edition),2004,25(6):664-671.
Authors:Chen Shui-sheng  Sun Bing-nan  Feng Yi-qing
Institution:1. School of Architecture and Civil Engineering,East China Jiaotong University,Nanchang 330013,P.R.China
2. Department of Civil Engineering,Zhejiang University,Hangzhou 310027,P.R.China
3. Highway Development Company of Jiangxi,Nanchang 330006,P.R.China
Abstract:Taking the bending stiffness, static sag, and geometric non-linearity into consideration, the space nonlinear vibration partial differential equations were derived. The partical differential equations were discretized in space by finite center difference approximation, then the nonlinear ordinal differential equations were obtained. A hybrid method involving the combination of the Newmark method and the pseudo-force strategy was proposed to analyze the nonlinear transient response of the inclined cable-dampers system subjected to arbitrary dynamic loading. As an example, two typical stay cables were calculated by the present method. The results reveal both the validity and the deficiency of the viscoelasticity damper for vibration control of stay cables. The efficiency and accuracy of the proposed method is also verified by comparing the results with those obtained by using Runge-Kutta direct integration technique. A new time history analysis method is provided for the research on the stay cable vibration control.
Keywords:stay cable  transient response  vibration control  non-linearity
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