Papers by Keyword: Reliability Level

Abstract: Decision on repairs or strengthening of existing structures with special focus on heritage structures or structures with areas where people may congregate has to be based on detail technical survey according to ISO 13822 and ISO 2394. The extent of structural intervention has to be always well planned taking into account economic, societal and environmental aspects. It is necessary to consider whether instead of significant structural intervention which could lead to unneeded economical loss of existing structures or also to the loss of heritage value of historic monuments, it is not better to make optimisation of structural intervention and accept the procedure for effective risk management.

Abstract: This paper outlines a new technique to address the paucity of data in determining fatigue life and performance based on reliability concepts. Two new randomized models are presented for estimating the safe life and pS-N curve, by using the standard procedure for statistical analysis and dealing with small sample numbers of incomplete data. The confidence level formulations for the safe and p-S-N curve are also given. The concepts are then applied for the determination of the safe life and p-S-N curve. Two sets of fatigue tests for the safe life and p-S-N curve are conducted to validate the presented method, demonstrating the practical use of the proposed technique.