地基土-单自由度滞变结构相互作用体系结构残余变形的概率性分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
本文主要针对地基土-单自由度滞变结构相互作用体系在非平稳高斯随机地震激励下的响应进行了分析。特别是对滞变导致的结构残余变形的发展过程进行了探索。最后结合一个简单数例,将理论计算结果与Monte Carlo法的计算结果进行了比较。比较结果表明,本方法可用来估算结构残余变形的统计量。
In this paper, the responses,specially the residual displacement, of a soil - hysteretic SDOF structure interaction system under non - stationary Gaussian earthquake excitaton are investigated. A numerical example of a soil water tower interaction system with non -degenerative restoring force is worked out. Comparing the theoretical results with those calculated by Monte Carlo method,it is shown that the method presented in this paper can estimate the statistic value of the residual displacement with satisfactory accuracy in engineering practice.
引文
[1] Caughey T. K. Equivalent Linearization Techniques,T. Acoust. Soc. Am.,Vol. 35 pp.1301-1701,1963.
    [2] Roberts,T. B.,The Energy Envelope of a Randamly Excited Nonlinear Oscillator,J. Sound, Vib. Vol. 60 pp,177-185,1978.
    [3] Wen Y. K. Equivalent Linearization for Hysteretic Systems under Random Excitation, J. Appl. Mech., Trans. ASME. Vol. 47, pp150-154. 1980.
    [4] Dash, P. K. and Lyengar,R. N.,Analysis of Randomly Time Varying Systems by Gaussian Clouse Technique,J. Sound and Vib.,Vol. 93 ,pp. 241-251,1982.
    [5] 陈晓东、俞载道,地基土-非线性单自由度结构相互作用体系的随机地震响应分析,同济大学学报,pp,13-24. 1987。
    [6] 裴多利、俞载道,地基土-非线性单自由度结构相互作用体系的随机地震荷载作用下的加权等效线性化分析法,地震学刊1988年 第一期.
    [7] 俞载道、曹国敖,随机振动理论及其应用,同济大学出版社,1988年7月.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心