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http://dx.doi.org/10.3741/JKWRA.2018.51.10.887

The application of reliability analysis for the design of storm sewer  

Kwon, Hyuk Jaea (Department of Civil Engineering, Cheongju University)
Lee, Kyung Je (Department of Civil Engineering, Cheongju University)
Publication Information
Journal of Korea Water Resources Association / v.51, no.10, 2018 , pp. 887-893 More about this Journal
Abstract
In this study, the optimum design technology is suggested by using reliability analysis method. Nowadays, urban flood inundation is easily occurred because of local heavy rain. Traditional deterministic design method for storm sewer may underestimate the size of pipe. Therefore, stochastic method for the storm sewer design is necessary to solve this problem. In the present study, reliability model using FORM (First Order Reliability Method) was developed for the storm sewer. Developed model was applied to the real storm sewers of 5 different areas. Probability of exceeding capacity has been calculated and construction costs according to diameter have been compared. Probability of exceeding capacity of storm sewers of 5 areas have been calculated after estimating the return period of rainfall intensity.
Keywords
Storm sewer; Reliability analysis; Rainfall; Random variable;
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  • Reference
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