A continuous formulation to calculate the dynamic stiffness matrix of structural
members with distributed masses is presented in detail and verified with some simple
examples.
The dynamic model of a specific bridge (the Marga-Marga bridge in Chile) was
developed using this formulation, and the model was then used to obtain the transfer
functions of the motions at different points of the bridge due to seismic excitation. The
model included rubber pads, used for base isolation, as additional members. The transfer
functions were obtained with and without rubber pads to investigate their effect.
The dynamic stiffness of complete pile foundations was calculated by a semi-analytical
solution with Poulos?? assumption. General observations on group effects under various
conditions were obtained from the result of these studies. The dynamic stiffness of the
pile foundations for the Marga-Marga bridge was then obtained and used to study the
soil structure interaction effects on the seismic response of the bridge.
Records obtained during a real earthquake were examined and interpreted in light of the
results from all these analyses. Finally, conclusions and recommendations on future
studies are presented.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/2552 |
| Date | 01 November 2005 |
| Creators | Dai, Wentao |
| Contributors | Roesset, Jose M. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Dissertation, text |
| Format | 5775018 bytes, electronic, application/pdf, born digital |
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