Modeling the frame of a unique building of parametric architecture based on the application of the "cylinder-cylinder" surface

Objective . The article considers information modeling of the frame of a unique building of parametric form in the software packages SAPFIR and LIRA-SAPR. This type of architecture is just beginning to develop in Russia, unlike other large cities of the world, which is becoming dominant. Method . At the first stage, the formation of a rotary surface with axoids "Cylinder-cylinder" formed by a straight line intersecting the axis of the movable cylinder, during external rolling, was considered. Varying the parameters made it possible to obtain a number of surfaces suitable for creating a parametric form of the frame of a unique building. A surface with five convex parts is adopted. The streamlined shapes of the object allow optimizing wind flows and protect against the formation of snow bags, which is relevant. Result . A modal analysis was carried out for the first version of the system modeling. Calculation of deformations under the action of constant, temporary long-term and short-term loads was performed. A comparison of deflections, horizontal displacements and accelerations of floors with maximum permissible values was carried out. Conclusion . The results of the study allow choosing the optimal variant of the analytical rotational surface. The calculation of deformations under the action of constant, temporary long-term and short-term loads is performed. Comparison of deflections, horizontal displacements and accelerations of floors with maximum permissible values showed that they do not exceed the maximum permissible values.