土-结构相互作用体系自振特性的计算
Calculation of the Free Vibration Characteristics of Soil-Construction Interaction System
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摘要: 通过将半无限弹性土体转化为附着在结构基础上的复刚度,建立起土-结构体系的联合模型,并推导出 该模型的扩展特征方程,通过求解特征方程,研究了地基对于结构自振特性的影响,得到了一些有益的结果。Abstract: Amodel forsoil-construction system is established bytransformingthe semi-infinite elastic ground into a complex stiffness embodied in the boundary layer between soil and construction, and the extended characteristic equation of the proposed model is derived. Through solving the characteristic equation, the effects of foundation soil on the free vibration characteristics of construction are studied, and some useful results are obtained.
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Key words:
- vibration /
- modes of vibration /
- characteristic equation /
- interaction modes /
- soil-construction
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