Abstract
The paper deals with the analysis of cables in stayed bridges and TV-towers, where the excitation is caused by harmonically varying in-plane motions of the upper support point with the amplitude ;. Such cables are characterized by a sag-to-chord-length ratio below 0·02, which means that the lowest circular eigenfrequencies for in-plane and out-of-plane eigenvibrations, ω and ω, are closely separated. The dynamic analysis is performed by a two-degree-of-freedom modal decomposition in the lowest in-plane and out-of-plane eigenmodes. Modal parameters are evaluated based on the eigenmodes for the parabolic approximation to the equilibrium suspension.
| Original language | English |
|---|---|
| Journal | Journal of Sound and Vibration |
| Volume | 251 |
| Issue number | 1 |
| Pages (from-to) | 79-102 |
| Number of pages | 24 |
| ISSN | 0022-460X |
| DOIs | |
| Publication status | Published - 2002 |
Keywords
- Excitation
- Eigenvibrations
- Cables
- Stayed Bridges
- TV-Towers
- Dynamic Analysis
- Forced Oscillations
- Elastic Cables
- Two-Degree-Of-Freedom Models