Method of Calculation Flexural Stiffness Over Natural Oscillations Frequencies

Archives of civil engineering

A. Nesterenko^1¹  M. Nesterenko^3²  G. Stolpovskiy^2³ 

[1] Orenburg Scientific Center of Ural Branch of Russian Academy of Sciences, Geoecology Department, 460014, Orenburg^1;Orenburg Scientific Center of Ural Branch of Russian Academy of Sciences, Geoecology Department, 460014, Orenburg^3;Orenburg State University, 466048, Orenburg^2

关键词: Dynamics;    building system;    frequency of natural oscillations;    flexural stiffness;    finite-element method;   

DOI  :  10.2478/ace-2018-0046

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

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.

【 授权许可】

Unknown