FUNDAMENTAL MODAL BEHAVIOR OF AN EARTHQUAKE-EXCITED BRIDGE.
By: A. G. Brady and M. Çelebi
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Abstract
The magnitude 6. 1 Morgan Hill, California, earthquake of April 24, 1984, produced a set of acceleration records at the freeway overpass in San Jose carrying I-280/I-680 across U. S. 101, 12 km from the epicenter. Peak accelerations reached 0. 10 g at ground level and 0. 16 g in the box girder. The integrated displacements at frequencies higher than 3 Hz permit the identification of the fundamental modes and frequencies. The horizontal modes have frequencies of 308 and 3. 9 Hz and include ground level motions up to 90% of peak deck motion. The soil-structure system contributes to these modes.
Suggested Citation
Brady, A., Çelebi, M., 1986, FUNDAMENTAL MODAL BEHAVIOR OF AN EARTHQUAKE-EXCITED BRIDGE., Proceedings of the Third U. S. National Conference on Earthquake Engineering., Charleston, SC, USA, p. 2225-2235.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | FUNDAMENTAL MODAL BEHAVIOR OF AN EARTHQUAKE-EXCITED BRIDGE. |
| ISBN | 0943198070 |
| Year Published | 1986 |
| Language | English |
| Publisher | Earthquake Engineering Research Inst |
| Publisher location | El Cerrito, CA, USA |
| First page | 2225 |
| Last page | 2235 |
| Conference Title | Proceedings of the Third U. S. National Conference on Earthquake Engineering. |
| Conference Location | Charleston, SC, USA |