| SEISMIC RANDOM VIBRATION ANALYSIS OF LOCALLY NONLINEAR STRUCTURES |
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| 引用本文： | ZhaoYan LinJiahao ZhangYahui AnWei. SEISMIC RANDOM VIBRATION ANALYSIS OF LOCALLY NONLINEAR STRUCTURES[J]. Acta Mechanica Solida Sinica, 2003, 16(3): 240-244. DOI: 10.1007/s10338-003-0132-x |
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| 作者姓名： | ZhaoYan LinJiahao ZhangYahui AnWei |
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| 作者单位： | [1]StateKeyLaboratoryofStructuralAnalysisofIndustrialEquipment,DalianUniversityofTechnology,Dalian116023,China [2]CaliforniaDepartmentofTransportation,Sacramento,CA94274,USA |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(No.10072015)，the National Key Base Research Special Foundation(No.G1999032805). |
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| 摘 要： | A nonlinear seismic analysis method for complex frame structures subjected to stationary random ground excitations is proposed. The nonlinear elasto-plastic behaviors may take place only on a small part of the structure. The Bouc-Wen differential equation model is used to model the hysteretic characteristics of the nonlinear components. The Pseudo Excitation Method (PEM) is used in solving the linearized random differential equations to replace the solution of the less efficient Lyapunov equation. Numerical results of a real bridge show that .the method proposed is effective for practical engineering analysis.
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| 关 键 词： | 磁滞系统 随机振动 能谱 伪励磁方法 统计线性化 工程结构 地震 局域非线性 框架结构 |
SEISMIC RANDOM VIBRATION ANALYSIS OF LOCALLY NONLINEAR STRUCTURES |
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| Zhao Yan Lin Jiahao Zhang Yahui. SEISMIC RANDOM VIBRATION ANALYSIS OF LOCALLY NONLINEAR STRUCTURES[J]. Acta Mechanica Solida Sinica, 2003, 16(3): 240-244. DOI: 10.1007/s10338-003-0132-x |
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| Authors: | Zhao Yan Lin Jiahao Zhang Yahui |
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| Affiliation: | (1) State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, 116023 Dalian, China;(2) California Department of Transportation, CA94274 Sacramento, USA |
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| Abstract: | A nonlinear seismic analysis method for complex frame structures subjected to sta- tionary random ground excitations is proposed.The nonlinear elasto-plastic behaviors may take place only on a small part of the structure.The Bouc-Wen differential equation model is used to model the hysteretic characteristics of the nonlinear components.The Pseudo Excitation Method (PEM)is used in solving the linearized random differential equations to replace the solution of the less efficient Lyapunov equation.Numerical results of a real bridge show that the method proposed is effective for practical engineering analysis. |
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| Keywords: | hysteretic system random vibration power spectral pseudo excitation method statistic linearization |
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