摘要
按常规方法求出的模糊可靠度仅是一个平均值,对建筑结构来说,平均可靠度与实际可靠度可能会有很大的差异;同时对于小子样样本的结构应力和强度,难以对其分布与参数作出准确地测定,这就使得结构实际可靠度具有较大的离散性;因此有必要讨论在给定置信度下模糊可靠度置信区间的计算方法。本文给出了建筑结构中常见类型模糊可靠度的置信区间的确定方法。
The result of confidence level calculated by common method is only one mean value, and there may be tremendous difference between the mean confidence levels and the actual confidence levels to building structure, and it'difficult to determine the distribution and the parameter of small sample stress and intensity at the same time. These cause the large discreteness of structural actual confidence levels. So it is necessary to discuss the calculation method for the confidence interval of fuzzy confidence level under the given degree of confidence. In this paper, the methods of determination on confidence interval of common model building structure fuzzy confidence level are given.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2003年第2期83-85,共3页
Journal of Building Structures
基金
高等学校博士学科点专项科研基金(98014124)
国家自然科学基金(59878008)联合资助。
