Abstract
Taking an oil and gas pipeline suspension bridge as an example, two seismic waves with different spectrum characteristics are selected to study the influence of traveling wave effect and uniform excitation on the internal forces and displacements of the pipeline suspension bridge at structural critical details by adopting time-history method. The results indicate that the peak internal forces and displacements of pylon change significantly with consideration of traveling wave effect, and the peak of those appear with corresponding wave velocity of 1000m/s or so. The vertical displacement envelope value of the girder decreases with the wave view velocity increasing and the number of its inflection point increases. The internal forces and displacement of tower tend to be the same with the condition of uniform excitation when wave velocity is greater than a certain level, and there are great difference in seismic response of the structure under the two seismic waves whose peak of acceleration is same but spectrum characteristics are different.
Original language | English |
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Pages (from-to) | 1255-1259 |
Number of pages | 5 |
Journal | Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban)/Journal of Liaoning Technical University (Natural Science Edition) |
Volume | 35 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Nov 2016 |
Externally published | Yes |
Keywords
- Artificial seismic wave
- Dynamic response
- Earthquake
- Pipeline suspension bridge
- San Fernando wave
- Time-history analysis
- Traveling wave
- Uniform excitation
ASJC Scopus subject areas
- General