Abstract
The subway station of 930 that passes underneath Seoul subway line #2 which is the only circulation line in Seoul Metropolitan is constructed in Seoul subway line #9. In this study, the resonance phenomenon which is caused by the natural frequency of the subway line #2 structure and vibration from train operation during construction of temporary bridge is investigated. The dynamic stability of the proposed method is investigated using numerical analysis and field measurement. The results of the eigenvalue analysis evaluated from train operation speed is 164.4 km/h and ktx is 222.7 km/h. The comparisons between field measurements and numerical analysis showed a similar trend which is 80% between two, approximately. The numerical results are that resonance phenomenon of the subway will not happen under the operation speed, and also shows the resonance phenomenon at the same speed of eigenvalue analysis. It should be useful to apply for similar cases.
| Translated title of the contribution | A Resonance Stability of Temporary Bridge Bearing Method Passing Underneath Existing Subway Structure |
|---|---|
| Original language | Korean |
| Pages (from-to) | 259-267 |
| Number of pages | 9 |
| Journal | 한국방재학회논문집 |
| Volume | 15 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 2015 |