TY - JOUR N2 - The actual load-bearing capacity of elements of a building system can be calculated by dynamic parameters, in particular by resonant frequency and compliance. The prerequisites for solving such a problem by the finite element method (FEM) are presented in the article. First, modern vibration tests demonstrate high accuracy in determination of these parameters, which reflects reliability of the diagnosis. Secondly, most modern computational complexes do not include a functional for calculating the load-bearing capacity of an element according to the input values of resonance frequencies. Thirdly, FEM is the basis for development of software tools for automating the computation process. The article presents the method for calculating flexural stiffness and moment of inertia of a beam construction system by its own frequencies. The method includes calculation algorithm realizing the finite element method. L1 - http://journals.pan.pl/Content/115613/PDF/06_ace-2018-0046.pdf L2 - http://journals.pan.pl/Content/115613 PY - 2018 IS - No 4/I EP - 103 KW - Dynamics KW - building system KW - frequency of natural oscillations KW - flexural stiffness KW - finite-element method A1 - Nesterenko, A. A1 - Stolpovskiy, G. A1 - Nesterenko, M. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES VL - Vol. 64 DA - 15.12.2018 T1 - Method of calculation flexural stiffness over natural oscillations frequencies SP - 89 UR - http://journals.pan.pl/dlibra/publication/edition/115613 T2 - Archives of Civil Engineering ER -