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Reliability of Large Structural Systems Under Time Varying Loads

by Y. M. Chen, Univ of Innsbruck, Austria,
G. I. Schu?ller, Univ of Innsbruck, Austria,
U. Bourgund, Univ of Innsbruck, Austria,



Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering

Abstract:

Time invariant reliability analyses of structural systems are generally carried out by using the well-known failure mode approach. To include the time varying effects of loads, concepts of stochastic processes have to be introduced. Consequently, no explicit formulation of the limit state functions is possible. Hence, for determining failure probabilities numerical procedures, such as Monte Carlo simulation, have to be utilized in an attempt to reduce the computational efforts, quite frequently approximate methods are applied for this purpose. However due to the fact that problems of this type generally involve several design points, approximate methods may lack efficiency as well as accuracy. For this reason an adaptive sampling method, i.e., an iterative Monte Carlo simulation procedure, is utilized.

Subject Headings: Structural reliability | Structural systems | Structural analysis | Failure analysis | Stochastic processes | System reliability | Monte Carlo method

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