[en] In this paper an analysis of stress and strain for orthotropic ring shells on the basis of the linear theory of thin elastic shell is presented. The asymptotic solution has been obtained. The results are suitable for lambda=E₁/E₂>0.3, where E₁ E₂ are reduced modulus of elasticity in the direction of the meridian and the parallel circle respectively. (orig.)

[en] The results of tests on a 1/10 scale model PCRV in the elastic range, in the cracked condition and in the ultimate loading condition is presented. The linear and non-linear stress analyses and ultimate load assessment of the model are also presented. In the linear analysis, three-dimensional finite element methods with arbitrary arranging nodes were used, and in the non-linear analysis, three-dimensional (axisymmetric) finite element methods were used. The interaction of liner, prestressing cable, rebar and concrete solid were considered in both analyses. The ultimate load of the PCRV was calculated by using the yield line method. There was generally good agreement between the test results and theoretical predictions. (author)