Determination of the natural periods of buildings
| Autor: | H. S. Ward, R. Crawford |
|---|---|
| Rok vydání: | 1964 |
| Předmět: |
Seismometer
Engineering Analog computer Lateral stiffness Magnetic tape seismology law.invention vibrations Harmonic analysis stiffness Geochemistry and Petrology Normal mode law batiment Earthquakes wind raideur vibration (onde) seismologie business.industry Structural engineering buildings Vibration Geophysics vent business Excitation Séisme |
| Zdroj: | Bulletin of the Seismological Society of America. 54:1743-1756 |
| ISSN: | 1943-3573 0037-1106 |
| Popis: | Random wind excitation has been used to find the first three modes of vibration of a nineteenstory building about the two major translational axes and the torsional axis of the building. Vibration records were obtained with Willmore electromagnetic seismometers feeding into a multichannel magnetic tape recorder. A harmonic analysis was then performed with the aid of an analogue computer to determine the first few vibration modes. Concurrently with the experimental program the building modes were computed two ways using different simplifying assumptions regarding the lateral stiffness of the structure. |
| Databáze: | OpenAIRE |
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