2016 Volume 62A Pages 291-302
The tall noise barrier recently installed on Shinkansen structures has a low natural frequency that produces significant response amplification during earthquakes. The aim of this study is to understand the dynamic response characteristics of tall noise barriers and to establish its seismic design method. As the results of onsite measurements and numerical analyses, the seismic response of noise barriers decrease by 20-50% due to the interaction effect between noise barriers and structures, and it increases by 10-35% due to the rotation movement of structure. Finally, practical seismic design methods which take the effect of elastic natural frequency of structures, the interaction of structures and the rotation movement into account were proposed.
