离岸结构的动力分析与模糊地震响应
|
摘要
用响应谱理论研究了离岸结构的动力分析与地震分析。考虑了烈度的模糊性和场地土分类的模糊性，利用模糊随机过程模拟地震地面运动并给出了相应的计算公式。文中还对非线性流体阻力进行了等效线性化，得到非模糊地震响应的公式，在此基础上进一步考虑了离岸结构的模糊地震响应。并用算例进行了结果分析。
In this paper dynamic analysis and a seismic analysis of offshore structures are studiedwith response spectrum theory.After having considered the fuzziness of intensity and thefuzziness of site soil classification,the authors utilize fuzzy random process to simulate earth-quake ground movement and give the eorresponding formulas. The linearization of equal ef-fects for non-linear fluid resistance is also studied and the formulas for non-fuzzy earthquakeresponse are obtained. The fuzzy earthquake response of offshore structure is further consid-ered on the above work.In order to discuss the theory and methods,a simple example is cal-culated and the results are analyzed.
In this paper dynamic analysis and a seismic analysis of offshore structures are studiedwith response spectrum theory.After having considered the fuzziness of intensity and thefuzziness of site soil classification,the authors utilize fuzzy random process to simulate earth-quake ground movement and give the eorresponding formulas. The linearization of equal ef-fects for non-linear fluid resistance is also studied and the formulas for non-fuzzy earthquakeresponse are obtained. The fuzzy earthquake response of offshore structure is further consid-ered on the above work.In order to discuss the theory and methods,a simple example is cal-culated and the results are analyzed.
引文
［1］王光远．地震烈度的二级模糊综合评判与应用。地震工程与工程振动，1985，13（2）．［2］王光远．工程软设计理论．北京：科学出版社，1992－11．［3］欧进萍．基于模糊破坏准则的抗震结构动力可靠性分析．地震工程与工程振动，1986，6（1）．［4］于再道，陈荣．固定海洋平台的抗震分析．海洋工程与近海结构国际会议论文集，上海，1983．［5］胡聿贤．地震工程学．北京：地震出版社，1988－10。［6］王光远．应用分析动力学，北京：人民教育出版社，1981－06．
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