Using a parametric diagonal transfer surface in the design of a large-span exhibition pavilion

Objective. Modeling and calculation of the building frame of a large-span exhibition pavilion, created using a diagonal transfer surface, for special seismic impacts using a standard method taking into account operational static and dynamic impacts, as well as regulation of forces and displacements in the elements of the building frame by changing the geometric scheme. Method. The framework of the unique building was developed based on the study of the evolution of the diagonal transfer surface in the ArchiCAD, SAPFIR and Lira-SAPR software packages. Result . At the first stage of design, a numerical experiment was conducted to regulate the stressstrain state of the building frame. The calculation of individual elements of the building was performed to determine the optimal calculation scheme and preliminary selection of element sections. Two options for roof arches were considered. The physical, mechanical and geometric parameters of the supporting structures were varied. Based on the results of the numerical experiment, the final calculation scheme of the building was selected and a full dynamic calculation of the frame was performed taking into account seismic impact. Conclusion. The displacements of the finite element model nodes in the global coordinate system, as well as the forces in the supporting elements of the frame, were obtained. An additional calculation for the stability of the arched roof was performed. Based on the analysis of the data obtained, a rational option for constructing the building frame was selected.