VIBEs Lab
Metal building are highly-optimized structures with natural periods (resonances) that are not well represented by standard design formulas. We are developing cheap, deployable methods for obtaining empirical field measurements of a wide variety of metal buildings in order to validate a new seismic design formula.
Structural vibrations can be used to track occupant movement and activity.
Gait can tell us much about a person’s state of health and floor vibrations are a non-intrusive way to monitor it.
The Varina Enon Bridge (Richmond, VA) serves as a platform to study how Structural Health Monitoring and Intelligent Traffic Systems data can be integrated to provide more holistic monitoring information.
The Goodwin Hall Smart Building uses 200+ accelerometers and Operational Modal Analysis to track modal parameters over the life of the building. The objectives of this research are:
For more information on Goodwin Hall visit the Virginia Tech Smart Infrastructure Lab website.
We have developed a public, open-source MATLAB library for Operational Modal Analysis. Access it here.
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Points clouds from reality capture methods, such as LIDAR, photogrammetry, and depth cameras, produce detailed geometric data of as-built structures. In raw form, however, these data are heavy and have limited use for engineers. We have developed methods for reducing point clouds in to structural “skeletons” on which Building Information Models (BIM) or Finite Element Models (FEM) can be building. Over the life of a structure, the approach can yield an evolving, as-built structural representation which could serve as a foundation for full-fledged Civil Infrastructure Digital Twins.
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