摘要
非比例（非经典）阻尼结构体系是实际工程结构抗震研究中经常遇到的问题．本文全面、系统地建立了这类结构体系的动力分析方法，对于各种不同非比例阻尼程度的结构体系，分别给出了其适用的分析方法：改进的复模态方法、近似解耦方法、拟力实模态叠加法、Ｒｉｔｚ向量叠加法、高精度直接积分法．这些分析方法具有很好的实用价值和理论意义，可供解决工程实际问题时参考．
For the earthquake resistant analysis of actual engineering strictures,most of structural systems have the properties of non--proportional(non--classical) damping. The dynamic analysis methods for the system are developed systematically and comprehensively in this paper. For analyzing structural systems with variant degrees of the non--proportional damping, the improved complex modal method, the approximate decoupling method, the modal superposition pseudo--force method, the Ritz vector superposition methods and the high accurate and unconditionally stable direct integration schemes are presented.These methods are of good practical value and theoretical significance, and can be applied effectively to solve practical engineering problems.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1994年第4期505-510,共6页
Journal of Tongji University:Natural Science
基金
国家自然科学基金会与建设部联合资助
关键词
非比例阻尼
抗震结构
动力分析
复模态
拟力
Non-proportional (Non-classical) damping
Complex mode
Approximate decoupling
Pseudo-force
Dynamic analysis
