- Author
- Reinhold, T. A. | Yokel, F. Y. | Rudder, F. F.
- Title
- Investigation of Floor Vibrations in the 'D' Wing of the Main Building of the Bureau of Engraving and Printing.
- Coporate
- National Bureau of Standards, Washington, DC
- Sponsor
- Bureau of Engraving and Printing, Washington, DC
- Report
- NBSIR 82-2599, December 1982,
- Distribution
- Available from National Technical Information Service
- Keywords
- machinery; foundations; vibration; buildings; floors; reinforced concrete; impact strength; cyclic loads | structural systems
- Abstract
- Floor vibrations induced in a Bureau of Engraving and Printing building by a recently-installed perforator were investigated by measuring relative acceleration amplitudes and phase relationships between a reference position and points on a grid laid out on the affected floor. From these measurements, it was possible to determine mode shapes, resonant frequencies and displacement amplitudes. On the basis of the displacement amplitudes, anticipated cyclic stresses in the structural system were estimated. The results of the measurements and analysis were compared with existing data on vibration-induced structural damage and fatigue strength of steel and reinforced concrete. Damping ratios were also determined in a separate test, in order to ascertain at later dates whether any structural deterioration is taking place.