Dynamic Response of a Period Viaduct In-plane Vibration Under Spatially Non-uniform Seismic Wave

DOI

10.2991/iccet-15.2015.215How to use a DOI?

Keywords

Floquet transform method; viaduct; period structure; energy bands; non-uniform seismic wave

Abstract

By using the Floquet transform method and based on the periodic structure’s theory, a theoretical model has been developed to determine the dynamic response of the periodic viaduct accounted for the non-uniform seismic excitations at different piers of the viaduct in this study. Numerical results show that there are three kinds of characteristic waves propagating in the periodic viaduct for the in-plane vibrations of the viaduct. The first kind of wave is a highly decaying wave; the second kind of wave can only propagate at a very narrow frequency range; the third kind of wave may propagate in pass bands with small attenuation. Moreover, when the periodic viaduct is subjected to passband seismic waves, the disturbance will propagate over a very long distance and the mode as well as attenuation of the wave motion far from the source is determined by the characteristic wave with the smallest attenuation. When the periodic viaduct is subjected to stopband seismic waves, the disturbance will restricted to the forced vibration region.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qian Huang
AU  - Guo-Jun Sheng
AU  - Man-Qing Xu
AU  - Jiang-Qian Zhao
PY  - 2015/11
DA  - 2015/11
TI  - Dynamic Response of a Period Viaduct In-plane Vibration Under Spatially Non-uniform Seismic Wave
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 1138
EP  - 1144
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.215
DO  - 10.2991/iccet-15.2015.215
ID  - Huang2015/11
ER  -