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Publicações
Lei Zhang, Sheng Dong, C. Guedes Soares, "Vertical breakwater reliability analysis with direct integration method", Maritime Engineering and Technology, Guedes Soares et al. (Eds),Taylor & Francis Group, London, pp. 459-463
In this paper, the direct integration method is applied to calculate the failure probability of the vertical breakwaters. The calculation precision is high by giving a full consideration of the correlation of the wave pressure and the uplifting pressure. The integral domain is processed by transforming an infinite integral to a limited regional integral. The joint density function of the wave pressure and the uplifting pressure is selected after comparison.The failure probability is calculated using a numerical integration method.The reliability index can be estimated by checking point method proposed by Lind. Each non-normal random variable is individually approximated by a normal distribution at the checking point. This method is recommended by Joint Committee on Structural Safety (JCSS), which is also called JC method. In this paper the calculation results are compared with the results calculated by both the variable-correlated JC method and the variable-uncorrelated JC method. Calculation results of practical case showthat the direct integration method and the variable-correlated JC method have similar results, whereas the variable-uncorrelated JC method’s calculation results are obviously lower.
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