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Analysis of damping performance of frame structure with viscoelastic dampers

Min Zhang (Jiangxi Science and Technology Normal University, Nanchang, China)
Huaying Pang (Wuzhou Urban and Rural Construction Planning and Design Institute, Wuzhou, China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 31 July 2020

Issue publication date: 8 February 2021

163

Abstract

Purpose

The purpose of this paper is to equip damping performance of frame structure with viscoelastic dampers connected to supports is studied, the influence of the damper supports and the damping parameters on the damping performance of the structure is analyzed, the practical economical arrangement of viscoelastic dampers on each floor is researched and the calculation method of the seismic effect of the damping structure is presented.

Design/methodology/approach

In this paper, Fourier transform is applied to the vibration equation of the structure equipped with viscoelastic dampers, the frequency domain solution of the vibration equation is solved and the time-domain solution of the equation is obtained by Fourier inverse transform, from which effects of the support coefficient and the relaxing time coefficient on the seismic response of the structure are analyzed.

Findings

The seismic effect of each floor and the bottom shear force of each vibration mode of a structure are analyzed, which indicates that the relaxing time coefficient of the damper should be controlled reasonably.

Originality/value

In this paper, the vibration equation is solved in the frequency domain for frame structure equipped with viscoelastic dampers. The time-domain solution of the equation is obtained by Fourier inverse transform, from which the seismic response of frame structure equipped with viscoelastic damper connected to supports is studied.

Keywords

Citation

Zhang, M. and Pang, H. (2021), "Analysis of damping performance of frame structure with viscoelastic dampers", Engineering Computations, Vol. 38 No. 2, pp. 913-928. https://doi.org/10.1108/EC-02-2020-0116

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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