The influence of knee joint's limit state shell frame under the action of ice loads
The volume of traffic along the Northern sea route has a tendency to continuous grown and extension of the navigation period. Therefore, we can expect an increase in the number of ice damage for both new buildings and for those who have a significant age of use. Although rules of construction are constantly evolving, introduced in the practice of a mandatory «Polar code», however, many questions concerning the work of knee joints in the composition side ceiling of ice navigation ships and their impact on the ultimate beams strength of a set are not sufficiently studied in the normative literature, there are no reasonable criteria of fault detection, repair and stiffening knee joints, proposed design methods are of a qualitative nature and difficult to apply in practice. Study of the influence knee joints to limit the possibility of the frame under the action of focused effort carried out by the authors on models by setting multi-factor planned experiments that allowed to assess the impact of knee joints on the ultimate strength of knee beams supported by and permissible residual damage.