| 变量分布截尾下可靠度计算的JC法 |
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| 引用本文： | 吴世伟,李宏. 变量分布截尾下可靠度计算的JC法[J]. 河海大学学报(自然科学版), 1988, 0(6) |
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| 作者姓名： | 吴世伟 李宏 |
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| 作者单位： | 河海大学工程力学系，河海大学工程力学系 |
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| 摘 要： | 水工结构可靠度分析中,随机变量分布两端常常由于受到几何或物理上的限制,需要对它们进行截尾处理.处理后,由于分布没有尾部,JC 法即不适用.针对这问题,本文提出了变量分布截尾下结构可靠度计算的 JC 法.通过算例所得的结果与相同条件下用验证荷载法所得的精确解作比较,证实了本方法有较高的精度,最后还讨论了该法在重力坝可靠度分析中的应用.
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| 关 键 词： | 随机变量 截尾分布 JC 法 可靠指标 |
JC Method for Reliability Analysis of Structures with Truncated Distribution Variables |
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| Wu Shiwei Li Hong. JC Method for Reliability Analysis of Structures with Truncated Distribution Variables[J]. Journal of Hohai University (Natural Sciences ), 1988, 0(6) |
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| Authors: | Wu Shiwei Li Hong |
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| Affiliation: | Wu Shiwei Li Hong |
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| Abstract: | Fujino's truncated model is used for the treatment of the variabler,in which truncated distributions are eeded in reliability analysis.The JC method needs a perfect distribution for any variable.To satisfy this equirement,a perfcct distribution curve from the truncated treatment is obtained by extending the curve toward the left (for left truncation),and toward the right (for right truncation),The formulae are finally obtained for the method.Some examples are given to show the high accuracy and practicability of the method. |
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| Keywords: | random variables truncated distribution JC method reliability index |
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