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Unformatted text preview: CGN 3421 Computer Methods Fall 2001 CGN 3421 page 1 of 2 11/8/01 H.W. #9 assigned 11/9/01 due Monday  11/19/01 Goal: Determine the reliability of systems with uncertain properties and / or loads. Problem: The figure to the right illustrates a foundation supporting a building through the combined strength of 3 piles. If the building weight exceeds the strength of all three piles combined, the founda tion will fail. Assignment: Determine the likelihood of pile foundation system fail ure. The equation you are solving is , where is the system strength, is the system load indicates safe system indicates failed system Assume the total strength of the pile system is the sum of the strength of each pile . Also assume the strength of the piles are independent of each other. The strength of each pile is described by a Gaussian Normal distribution , . The load is described by a Gaussian Normal distribution Assignment: Find the probability of failure in several ways: 1) Numerically integrate the appropriate Gaussian distribution over the appropriate limits to solve...
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 Spring '08
 Long
 Normal Distribution, Standard Deviation, Gaussian Normal distribution

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