- search hit 1 of 1
Experimental Validation of Dynamic Response of Small-Scale Metaconcrete Beams at Resonance Vibration
- Structures and their components experience substantially large vibration amplitudes at resonance, which can cause their failure. The scope of this study is the utilization of silicone-coated steel balls in concrete as damping aggregates to suppress the resonance vibration. The heavy steel cores oscillate with a frequency close to the resonance frequency of the structure. Due to the phaseStructures and their components experience substantially large vibration amplitudes at resonance, which can cause their failure. The scope of this study is the utilization of silicone-coated steel balls in concrete as damping aggregates to suppress the resonance vibration. The heavy steel cores oscillate with a frequency close to the resonance frequency of the structure. Due to the phase difference between the vibrations of the cores and the structure, the cores counteract the vibration of the structure. The core-coating inclusions are randomly distributed in concrete similar to standard aggregates. This mixture is referred to as metaconcrete. The main goal of this work is to validate the ability of the inclusions to suppress mechanical vibration through laboratory experiments. For this purpose, two small-scale metaconcrete beams were cast and tested. In a free vibration test, the metaconcrete beams exhibited a larger damping ratio compared to a similar beam cast from conventional concrete. The vibration amplitudes of the metaconcrete beams at resonance were measured with a frequency sweep test. In comparison with the conventional concrete beam, both metaconcrete beams demonstrated smaller vibration amplitudes. Both experiments verified an improvement in the dynamic response of the metaconcrete beams at resonance vibration.…
Document Type: | Article |
---|---|
Author: | Meisam AnsariORCiD, Fabiola TartaglioneORCiD, Prof. Dr.-Ing. habil. Carsten KönkeORCiDGND |
DOI (Cite-Link): | https://doi.org/10.3390/ma16145029Cite-Link |
URN (Cite-Link): | https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20230818-64154Cite-Link |
URL: | https://www.mdpi.com/1996-1944/16/14/5029 |
Parent Title (English): | materials |
Publisher: | MDPI |
Place of publication: | Basel |
Language: | English |
Date of Publication (online): | 2023/07/16 |
Date of first Publication: | 2023/07/16 |
Release Date: | 2023/08/18 |
Publishing Institution: | Bauhaus-Universität Weimar |
Institutes and partner institutions: | Fakultät Bauingenieurwesen / Professur Baustatik und Bauteilfestigkeit |
Volume: | 2023 |
Issue: | volume 16, issue 14, article 5029 |
Pagenumber: | 17 |
First Page: | 1 |
Last Page: | 17 |
Tag: | damping aggregate; free vibration test; frequency sweep test; metaconcrete; vibration absorber |
GND Keyword: | Beton; Schwingungsdämpfung |
Dewey Decimal Classification: | 600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften / 624 Ingenieurbau |
BKL-Classification: | 56 Bauwesen / 56.12 Betonbau |
Licence (German): | Creative Commons 4.0 - Namensnennung (CC BY 4.0) |