原文传递
Experimental Study of the Hydrodynamic Responses of a Bridge Tower to Waves and Wave Currents
| 题名： | Experimental Study of the Hydrodynamic Responses of a Bridge Tower to Waves and Wave Currents |
| 其他题名： | Bradner,C.,Schumacher,T.,Cox,D.,and Higgins,C.(2011)."Experimental setup for a large-scale bridge superstructure model subjected to waves."J.Waterway,Port,Coastal,Ocean Eng.,10.1061/(ASCE)WW.1943-5460.0000059,3–11. |
| 正文语种： | 英文 |
| 作者： | Chengxun Wei |
| 关键词： | Model experiment;Bridge tower;Wave load;Current load;Wave current;Dynamic response |
| 摘要： | To understand the hydrodynamic responses of a bridge tower, which consists of a large round-ended caisson foundation and a diamond-type superstructure, a model experiment at a 1:150 scale was conducted in a laboratory flume. The model was designed to be an elastic structure, which would simulate the dynamic properties of a freestanding bridge tower. Regular waves and the combined action of waves and currents were used as loads in the experiment. The horizontal base shear forces of the foundation and the dynamic responses of displacement and acceleration on the superstructure weremeasured and analyzed. It is found that the wave current–induced base shear force is approximately equal to the sum of the corresponding wave-induced and current-induced base shear forces. The vibrations of the superstructure are irregular and consist of free vibration at a natural frequency and forced vibration at a wave frequency. The vibration responses driven by the wave currents are slightly larger than those driven by the waves alone, indicating that a forward current does not observably amplify the dynamic responses of the bridge tower. |
| 出版年： | 2017 |
| 论文唯一标识： | P-108Y2017V143N03010 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)WW.1943-5460.0000381 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 拼音刊名(出版物代码)： | P-108 |
| 卷： | 143 |
| 期： | 03 |
| 页码： | 97-107 |
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