Abstract
This work investigates the soil-structure-interaction (SSI) phenomenon manifested during the seismic response of a reinforced concrete (R/C) bridge. We focus on a four-span highway bridge with piers of unequal height crossing a mountain valley. The bridge and its foundation system are modelled by finite elements (FE) plus the spring/dashpot/added mass discrete parameter system. A hierarchy of FE meshes is developed, starting with shell elements and ending with linear elements. Also, two basic types of foundations are examined, namely spread footings versus pile groups. Following a preliminary design of the bridge, a series of time history analyses of the combined deck-pier-foundation system are performed, the results of which are used in assessing the role of the foundation's compliance. The influence of key construction details such as pier-to-deck connection on the response is also examined. Finally, a series of recommendations are given on how to account for the ground's influence on the design of the piers.
| Original language | British English |
|---|---|
| Pages (from-to) | 691-700 |
| Number of pages | 10 |
| Journal | Advances in Earthquake Engineering |
| Volume | 9 |
| State | Published - 2001 |
| Event | Third International Conference on Earthquake Resistant Engineering Structures, ERES III - Malaga, Spain Duration: 4 Sep 2001 → 6 Sep 2001 |