Currently, in the chemical industry and the energy sector, many destroyed buildings are exposed to high temperatures. In this article, the influence of deformation of reinforced concrete structural elements (ZhBEK) of the corresponding boundary conditions is analyzed with versatile heating up to +200 degrees Celsius. The finite element method (FEM) was used to simulate the process of deformation of reinforced concrete structural elements in ANSYS Mechanical (Workbench), as well as data on the deformation of reinforced concrete structural elements of structures. One of the most common such complexes today is the ANSYS program, using the finite element method, is a multi-purpose package of design and analysis, recognized throughout the world. ANSYS Mechanical (Workbench) provides ample opportunities for the implementation of project development, analysis and optimization.