Analysis of oscillations of framework at pulse influence taking into account physical non-linearity

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Ziambaev, N.A.^1

Department of Construction Industry and Theory of Structures, South Ural State University, Lenin Avenue, 76, Chelyabinsk

454080, Russia^1

关键词: Calculation results;    Dissipative systems;    Equation of motion;    Nonlinear oscillation;    Reaction parameters;    Response characteristic;    Response parameters;    Three degrees of freedom;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012052/pdf
DOI  :  10.1088/1757-899X/451/1/012052

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article illustrates the analysis of oscillations of a flat multi-storey framework as discrete dissipative systems (DDS) at pulse influence by the time analysis method (TAM). Brief theoretical prepositions of TAM, such as description of the equation of motion of the DDS and expressions of response parameters, are given. The design dynamic model of the structure represents the flat three-storey shear frame having three degrees of freedom. The calculation results are oscillograms of internal response characteristics and reaction parameters of the system on the time slice t [0;8] sec. The multi-cycle nature of deformation of racks and also the change of parameters of plastic zones of framework supporters in the process of non-linear oscillations are considered.