2024 Volume 80 Issue 13 Article ID: 23-13142
Seismic response analysis was conducted to clarify the response of the bridge-pipeline-ground system when nonlinear behavior of the ground was considered, based on the damage caused by the 2016 Kumamoto earthquake. The results showed that: 1) nonlinear behavior of the embankment behind the abutment increases the response of the pipeline near the abutment; and 2) the increase in axial stress in the bridge-pipeline-ground system is strongly enhanced when the system is subjected to seismic waves in the bridge longitudinal direction. Furthermore, it was confirmed that 3) the response of the pipeline near the abutments can be significantly suppressed by seismic countermeasure to the pipeline elements near the abutments.
