Parameter calculations on a reference vessel

This report summarizes some results of a parameter investigation on a reference vessel, which was proposed during a round table discussion of members of the 'Spannbeton-Reaktordruckbehaelter' research project. The primary goal was to study variations of the constitutive parameters and two creep analysis methods on the long term behaviour of a prestressed concrete nuclear containment. The configuration of the reference vessel resembles the THTR 300 MW, Schmehausen. In particular, the temperature sensitivity of the modulus of elasticity, the coefficient of thermal expansion and the creep function are examined with regard to their effect on the structural response. In addition, results of different creep calculations are compared using the effective modulus method and the rate of creep method. The interaction of prestress losses and creep deformations is explored in a separate study. (orig.)