Abstract
This chapter presents a reliability assessment of a beam supported by two semi-rigid (Type PR) connections. The beam and the connections are designed in accordance with Eurocode 3, using beam cross sections satisfying the criteria for classes 1,2,3 and 4 (corresponding to US criteria for plastic design (PD), compact, compact, non compact and slender). Mechanical and cross sectional properties are treated as random variables, as have the ultimate moment capacity, the initial stiffness, and the coefficient defining the shape of the M-Φ curve for the connections. Dead and live load are also random variables. Structural reliability is expressed in terms of probabilities of failure and reliability indices. The results of sensitivity studies for the structure are presented, including means and variances of the connections features.
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