An updated analytical structural pounding force model based on viscoelasticity of materials

Qichao Xue, Chunwei Zhang, Jian He, Guangping Zou, Jingcai Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Based on the summary of existing pounding force analytical models, an updated pounding force analysis method is proposed by introducing viscoelastic constitutive model and contact mechanics method. Traditional Kelvin viscoelastic pounding force model can be expanded to 3-parameter linear viscoelastic model by separating classic pounding model parameters into geometry parameters and viscoelasticmaterial parameters. Two existing pounding examples, the poundings of steel-to-steel and concrete-toconcrete, are recalculated by utilizing the proposed method. Afterwards, the calculation results are compared with other pounding force models. The results show certain accuracy in proposed model.The relative normalized errors of steel-to-steel and concreteto- concrete experiments are 19.8% and 12.5%, respectively. Furthermore, a steel-to-polymer pounding example is calculated, and the application of the proposed method in vibration control analysis for pounding tuned mass damper (TMD) is simulated consequently. However, due to insufficient experiment details, the proposed model can only give a rough trend for both single pounding process and vibration control process. Regardless of the cheerful prospect, the study in this paper is only the first step of pounding force calculation. It still needs a more careful assessment of the model performance, especially in the presence of inelastic response.
Original languageEnglish
Article number2596923
Number of pages15
JournalShock and Vibration
Volume2016
DOIs
Publication statusPublished - 2016

Open Access - Access Right Statement

Copyright © 2016 Qichao Xue et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

  • structural engineering
  • vibration
  • viscoelasticity

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