Structural Design Based on Weighted Fractiles

by Eero Paloheimo, Managing Dir.; Consulting Engrg., Paloheimo and Ollila, Helsinki, Finland,
Matti Hannus, Res. Engr.; Tech. Res. Ctr. of Finland, Concrete Lab., Helsinki, Finland,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 7, Pg. 1367-1378

Document Type: Journal Paper


A probability-based structural design method is introduced. The reliability criterion is replaced by a deterministic design equation, in which all random variables are substituted by appropriate design values. A design value depends upon: (1) the mean value and standard deviation of the corresponding random variable; (2) the reliability factor that reflects the acquired level of reliability; and (3) the sensitivity factor that measures the effect of the individual random variable upon the total system. Methods of application are considered.

Subject Headings: Structural design | System reliability | Probability

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