Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion
The wave field on the artificial boundary was separated into the free field without local topography effect and scattering field induced by local topography effect. The simulation of the free field under obliquely incident waves was conducted. Based on the assumption that the components of design gr...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/4127031 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849691158224044032 |
|---|---|
| author | W. J. Cen X. H. Du D. J. Li L. N. Yuan |
| author_facet | W. J. Cen X. H. Du D. J. Li L. N. Yuan |
| author_sort | W. J. Cen |
| collection | DOAJ |
| description | The wave field on the artificial boundary was separated into the free field without local topography effect and scattering field induced by local topography effect. The simulation of the free field under obliquely incident waves was conducted. Based on the assumption that the components of design ground motion were treated as the coincidence of oblique P wave and oblique SV wave, the relationship between the oblique input waves and the design ground motion was established in the free field. Further, the contributions to the two components of design ground motion of obliquely incident waves were discussed. The calculation model in time domain was achieved by the combination of the propagation characteristics of obliquely incident waves and the artificial boundary in the free field. The seismic response to the design ground motion was produced on the free surface. The verification of the 2D half-space model under oblique input waves indicated that the wave input method can accurately reflect the design ground motion on the free surface. Application of an earth-rock dam showed that oblique incidence of seismic waves results in significantly different dynamic response compared with the normal incidence. The proposed method can also be employed in the seismic analysis of large span structures with nonuniform ground motion input. |
| format | Article |
| id | doaj-art-e2ea8e6aa9e74202b315c41e3ba93bf6 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e2ea8e6aa9e74202b315c41e3ba93bf62025-08-20T03:21:07ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/41270314127031Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground MotionW. J. Cen0X. H. Du1D. J. Li2L. N. Yuan3College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, ChinaThe wave field on the artificial boundary was separated into the free field without local topography effect and scattering field induced by local topography effect. The simulation of the free field under obliquely incident waves was conducted. Based on the assumption that the components of design ground motion were treated as the coincidence of oblique P wave and oblique SV wave, the relationship between the oblique input waves and the design ground motion was established in the free field. Further, the contributions to the two components of design ground motion of obliquely incident waves were discussed. The calculation model in time domain was achieved by the combination of the propagation characteristics of obliquely incident waves and the artificial boundary in the free field. The seismic response to the design ground motion was produced on the free surface. The verification of the 2D half-space model under oblique input waves indicated that the wave input method can accurately reflect the design ground motion on the free surface. Application of an earth-rock dam showed that oblique incidence of seismic waves results in significantly different dynamic response compared with the normal incidence. The proposed method can also be employed in the seismic analysis of large span structures with nonuniform ground motion input.http://dx.doi.org/10.1155/2018/4127031 |
| spellingShingle | W. J. Cen X. H. Du D. J. Li L. N. Yuan Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion Shock and Vibration |
| title | Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion |
| title_full | Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion |
| title_fullStr | Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion |
| title_full_unstemmed | Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion |
| title_short | Oblique Incidence of Seismic Wave Reflecting Two Components of Design Ground Motion |
| title_sort | oblique incidence of seismic wave reflecting two components of design ground motion |
| url | http://dx.doi.org/10.1155/2018/4127031 |
| work_keys_str_mv | AT wjcen obliqueincidenceofseismicwavereflectingtwocomponentsofdesigngroundmotion AT xhdu obliqueincidenceofseismicwavereflectingtwocomponentsofdesigngroundmotion AT djli obliqueincidenceofseismicwavereflectingtwocomponentsofdesigngroundmotion AT lnyuan obliqueincidenceofseismicwavereflectingtwocomponentsofdesigngroundmotion |