Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices
A finite element model was built for a curve bridge with an unseating-prevention device. The collision effect of the curved bridge under rare earthquake was studied and the dynamic response mechanism was discussed based on this finite element mod-el. The influence of expansion joint setting on the d...
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| Format: | Article |
| Language: | zho |
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Science Press
2015-09-01
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| Series: | 工程科学学报 |
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| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.09.018 |
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| author | SONG Bo HUANG Fu-tang BI Ze-feng WANG Yan-xu |
| author_facet | SONG Bo HUANG Fu-tang BI Ze-feng WANG Yan-xu |
| author_sort | SONG Bo |
| collection | DOAJ |
| description | A finite element model was built for a curve bridge with an unseating-prevention device. The collision effect of the curved bridge under rare earthquake was studied and the dynamic response mechanism was discussed based on this finite element mod-el. The influence of expansion joint setting on the dynamic characteristics of the curved bridge was analyzed. It is found that the spec-tral characteristics of seismic waves have significant effect on the collision effect, and the collision frequency between the adjacent frames increases under far field earthquake, while the collision force decreases. When the expansion joint increases, the effect on the axial force of the unseating-prevention device weakens, the collision force increases, but the collision times are basically unchanged. The expansion joint significantly affects the plastic development of the pier bottom. The curvature ductility demand reduces with decreasing expansion joint, and more than 62.5% drops compared that without the expansion joint. |
| format | Article |
| id | doaj-art-431d97d7cbaa47d189d3f3b773b9863c |
| institution | OA Journals |
| issn | 2095-9389 |
| language | zho |
| publishDate | 2015-09-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj-art-431d97d7cbaa47d189d3f3b773b9863c2025-08-20T02:16:59ZzhoScience Press工程科学学报2095-93892015-09-013791230123810.13374/j.issn2095-9389.2015.09.018Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devicesSONG BoHUANG Fu-tangBI Ze-fengWANG Yan-xu03. Roadway Construction Project Management Center of Beijing Municipal Roadway Administration Bureau, Beijing 100031, ChinaA finite element model was built for a curve bridge with an unseating-prevention device. The collision effect of the curved bridge under rare earthquake was studied and the dynamic response mechanism was discussed based on this finite element mod-el. The influence of expansion joint setting on the dynamic characteristics of the curved bridge was analyzed. It is found that the spec-tral characteristics of seismic waves have significant effect on the collision effect, and the collision frequency between the adjacent frames increases under far field earthquake, while the collision force decreases. When the expansion joint increases, the effect on the axial force of the unseating-prevention device weakens, the collision force increases, but the collision times are basically unchanged. The expansion joint significantly affects the plastic development of the pier bottom. The curvature ductility demand reduces with decreasing expansion joint, and more than 62.5% drops compared that without the expansion joint.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.09.018bridgesunseating-prevention devicesexpansion joint designdynamic characteristicsrelative displacementfinite element modelling |
| spellingShingle | SONG Bo HUANG Fu-tang BI Ze-feng WANG Yan-xu Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices 工程科学学报 bridges unseating-prevention devices expansion joint design dynamic characteristics relative displacement finite element modelling |
| title | Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices |
| title_full | Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices |
| title_fullStr | Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices |
| title_full_unstemmed | Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices |
| title_short | Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices |
| title_sort | influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating prevention devices |
| topic | bridges unseating-prevention devices expansion joint design dynamic characteristics relative displacement finite element modelling |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.09.018 |
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