Analysis method for translation-torsion coupling wind induced oscillation response of non-coaxial rigidity eccentric structure

Abstract

The invention discloses an analysis method for translation-torsion coupling wind induced oscillation response of a non-coaxial rigidity eccentric structure. The method is operated through the following steps of: 1, representing rigidity eccentricity of each layer of the structure in the form of polar coordinate; 2, constructing a power equation of the non-coaxial rigidity eccentric structure; 3, selecting a structural model and determining a model parameter; 4, performing wind induced translation-torsion coupling response analysis on the non-coaxial quality eccentric structure in a frequency domain; and 5, calculating an arithmetic root mean square matrix of displacement and acceleration of the structure, and analyzing data to obtain main influence of mono-axial rigidity eccentricity and non-coaxial rigidity eccentricity on the translation-torsion wind induced oscillation of a rectangular building structure. By using the analysis method, the translation-torsion coupling wind induced oscillation response of the rigidity eccentric structure is analyzed in the frequency domain to obtain the arithmetic root mean square data of the central displacement and acceleration of the plane of each layer of the structure; the method has the innovation point that: the non-coaxial eccentricity of the structure is represented by using the polar coordinate; and the method has the advantages that: the eccentric position of the structure can be flexibly set; and the influence rule of the non-coaxial (any) eccentricity on the wind induced oscillation response of the structure can be given.

Description

technical field

[0001] The invention relates to a method for analyzing the wind vibration response of a building engineering structure, in particular to a method for analyzing the wind vibration response of a non-coaxial stiffness eccentric structure coupled with flat torsion. Background technique

[0002] With the development of the economy, the degree of urbanization is increasing day by day, the urban population is increasing rapidly, the contradiction between the continuous expansion of people's activity space and the non-renewable resources such as land is becoming more and more prominent. In order to expand one's own living space, various new technologies, new materials, new styles, and new design methods have emerged as the times require, and civil engineering has become increasingly diverse, complex, and large-scale, which has caused the mass center and stiffness center of the building structure to not coincide. , the wind load acting on the center of mass of th...

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