Abstract
The prediction of vibration transmission in collapsed and fragmented reinforced-concrete buildings has the potential to inform decisions about the possibility to detect human survivors trapped in buildings after earthquakes by using structure-borne sound propagation. In collapsed buildings there are many uncertainties such as the collapse pattern of the building and the contact conditions between the debris. In this research, a statistical rather than a deterministic model is being developed to predict vibration transmission through the debris of a collapsed building. This paper assess the potential to use Statistical Energy Analysis (SEA) to model vibration transmission between two reinforced concrete beams when they are resting on top of each other. An experimentally validated finite element model of two beams was used to carry out a Monte Carlo simulation with 30 beam junctions in random formations. Coupling loss factors were determined with FEM data using Experimental SEA and these were compared against theoretical models based on a lump spring connector.
| Original language | English |
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| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | 24th International Congress on Sound and Vibration, ICSV 2017 - London, United Kingdom Duration: Jul 23 2017 → Jul 27 2017 |
Conference
| Conference | 24th International Congress on Sound and Vibration, ICSV 2017 |
|---|---|
| Country/Territory | United Kingdom |
| City | London |
| Period | 7/23/17 → 7/27/17 |
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics
Keywords
- Experimental modal analysis
- Finite element methods
- Monte Carlo simulations
- Statistical energy analysis