| 拱坝坝体可靠度分析的随机拱梁分配法 |
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| 引用本文： | 程心恕,封伯昊. 拱坝坝体可靠度分析的随机拱梁分配法[J]. 土木工程学报, 1998, 0(2) |
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| 作者姓名： | 程心恕 封伯昊 |
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| 作者单位： | 福州大学(程心恕)，云南工业大学(封伯昊) |
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| 摘 要： | 在对常规多拱梁法和可靠度理论进行了分析后,提出了随机多拱梁法.用微分和概率论方法对荷载和抗力的统计特征处理后可以求得拱梁分载值和应力分量的方差.通过JC法的计算,导出了反映坝体抗拉和抗压能力两组可靠指标.最后,用所编制的程序对福建省东牙溪双曲拱坝进行了可靠度分析,得出一些有益的结论.
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| 关 键 词： | 随机 拱坝 可靠度 |
STOCHASTIC MULTI-ARCH-CANTILEVER METHOD FOR ARCH DAM RELIABILITY |
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| Cheng Xinshu Feng Bohao. STOCHASTIC MULTI-ARCH-CANTILEVER METHOD FOR ARCH DAM RELIABILITY[J]. China Civil Engineering Journal, 1998, 0(2) |
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| Authors: | Cheng Xinshu Feng Bohao |
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| Affiliation: | Cheng Xinshu Feng Bohao (Fuzhou University) (Yunnan University) |
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| Abstract: | After analyzing the conventional multi-arch-cantilever method and reliability theory, the stochastic multi-arch-cantilever method has been raised. The differential and probabilistic ways are used to deal with statistical features of resisting forces and loads, then, the variances of distribution of load and components of stresses are obtained. By use of the JC method, two groups of reliability index which reveal the ability of tensile and compressive resistance of the dam body can be also derived. A corresponding program SDMCON has been developed.Finally, with the program developed by the author, several conclusions have been drawn from reliability analysis and computation of the Dong Ya Xi double-curature arch dam in Fujian province |
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| Keywords: | Stochastic arch dam reliability |
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