Design and evaluation of dual-resonant aggregates metaconcrete

En Zhang; Haixiang Zhao; Guoyun Lu; Pengcheng Chen; Huiwei Yang

doi:10.1590/1679-78257392

Design and evaluation of dual-resonant aggregates metaconcrete

Authors

En Zhang School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China https://orcid.org/0000-0001-5803-6266
Haixiang Zhao School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China https://orcid.org/0000-0002-9139-6535
Guoyun Lu School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China https://orcid.org/0000-0003-0993-4056
Pengcheng Chen School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China https://orcid.org/0009-0000-3779-0542
Huiwei Yang School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China https://orcid.org/0000-0001-5921-8424

DOI:

https://doi.org/10.1590/1679-78257392

Abstract

Metaconcrete is a newly manmade concrete where traditional aggregates are partially replaced by resonant aggregates. The metaconcrete slab can attenuate vibration in the specific frequency bandgap which are created by the locally resonant aggregates. To enhance the attenuation performance of metaconcrete slab, a dual-resonant aggregate was designed and embedded into the metaconcrete slab. Firstly, a mass-in-(mass-in-mass) analytical model is used to predict the bandgap characteristics of dual-resonant aggregates metaconcrete. Then, eigenfrequency investigation is conducted to acquire the dispersion curve of the periodic unit cell by using finite element software COMSOL Multiphysics. The effects of the mass and stiffness ratios parameters on the characteristics of bandgap are studied. The frequency responses of the dual-resonant aggregates metaconcrete reveal that the dual-resonant aggregates metaconcrete slab can acquire vibration wave mitigation in two designed frequency bands. The results offer a base for the optimal design of the metaconcrete slab for structural protections resist vibration loading.

Downloads

Published

2023-03-06

Issue

Vol. 20 No. 2 (2023)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY] that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).