Numerical Synthesis Method of Ground Motions for Seismic Design of Near-Fault Bridge Engineering
© 2017 American Society of Civil Engineers. Spatially extended long-span bridges, which crossing an active fault or located near fault area are subjected to both static step-like deformation and dynamic ground motions. Due to there are lack of near-fault recordings, numerical simulations of near fau...
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| Main Authors: | , , |
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| Format: | Conference Proceeding |
| Published: |
2017
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| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85029461479&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/42459 |
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| Institution: | Chiang Mai University |
| Summary: | © 2017 American Society of Civil Engineers. Spatially extended long-span bridges, which crossing an active fault or located near fault area are subjected to both static step-like deformation and dynamic ground motions. Due to there are lack of near-fault recordings, numerical simulations of near fault time-histories are required. This paper proposes a hybrid synthesis method combining the modified statistical Green's function and theoretical Green's function. It considers both the dynamic vibration and static terms (namely permanent displacement) of the near-fault strong ground motion, also the simulation simply considered the complete seismic waveforms including the near-, intermediate-, and far-field terms. Then by this synthesis method, near-fault ground motions are calculated as the input time-histories to analyze seismic response of a simple bridge. The results well showed the applicable of this method provides a useful reference for seismic design guidelines for near-fault bridge engineering. |
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