Experimental Validation of Dynamic Response of Small-Scale Metaconcrete Beams at Resonance Vibration
Abstract
:1. Introduction
1.1. Metaconcrete
1.2. Scope and Outline of the Work
2. Materials and Specimens
2.1. Concrete Mixture
2.2. Damping Aggregates
2.3. Specimens
3. Determination of the Damping Ratio with the Free Vibration Test
3.1. Description of the Test Setup and Procedure
3.2. Results and Discussion
4. Determination of the Vibration Amplitude with the Frequency Sweep Test
4.1. Description of the Test Setup and Procedure
4.2. Results and Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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Component | Volume Fraction (%) | Volume (dm3/m3) | Unit Mass (kg/dm3) | Mass (kg/m3) |
---|---|---|---|---|
Aggregates | ||||
0~2 mm | 35 | 229 | 2.65 | 608 |
2~8 mm | 65 | 426 | 2.60 | 1108 |
Sum | 100 | 655 | 1716 | |
Chosen W/C: | 0.45 | |||
Water | 189 | |||
Cement | 420 | |||
Sum | 609 | |||
Total sum | 2325 |
Size | Stainless-Steel Core | Silicone Coating | Overall | Overall | |
---|---|---|---|---|---|
Diameter (mm) | Mass (gr) | Thickness (mm) | Diameter (mm) | Volume (mm3) | |
K7 | 8 | 2.14 | 3 | 14 | 1437 |
K9 | 10 | 4.19 | 3 | 16 | 2145 |
Component | Material | Density (kg/m3) | E (MPa) |
---|---|---|---|
Core | Stainless-Steel | 8000 | 200,000 |
Coating | Silicone | 1040 | 0.024 |
Specimen | Core-Coating in Concrete | Length (mm) | Section (mm) (Width × Depth) | Mass (gr) | |
---|---|---|---|---|---|
Size | |||||
P720 | - | - | 720 | 60 × 40 | 3980 |
P720-K7 | K7 | 60 | 720 | 60 × 40 | 4064 |
P720-K9 | K9 | 40 | 720 | 60 × 40 | 4178 |
Beam | [Hz] | [%] | [-] | [Hz/min] |
---|---|---|---|---|
P720 | 304 | 0.36 | 139 | 258 |
P720-K7 | 310 | 1.84 | 27 | 7119 |
P720-K9 | 340 | 2.73 | 18 | 192,667 |
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Ansari, M.; Tartaglione, F.; Koenke, C. Experimental Validation of Dynamic Response of Small-Scale Metaconcrete Beams at Resonance Vibration. Materials 2023, 16, 5029. https://doi.org/10.3390/ma16145029
Ansari M, Tartaglione F, Koenke C. Experimental Validation of Dynamic Response of Small-Scale Metaconcrete Beams at Resonance Vibration. Materials. 2023; 16(14):5029. https://doi.org/10.3390/ma16145029
Chicago/Turabian StyleAnsari, Meisam, Fabiola Tartaglione, and Carsten Koenke. 2023. "Experimental Validation of Dynamic Response of Small-Scale Metaconcrete Beams at Resonance Vibration" Materials 16, no. 14: 5029. https://doi.org/10.3390/ma16145029