| 熊 磊,刘 智,周清勇,胡国平,唐湘伟.闸墩高度对闸墩顶部结构动力响应的影响[J].江西水利科技,2023,(2): |
| 闸墩高度对闸墩顶部结构动力响应的影响 |
| Influence of pier height on dynamic response of pier top structure |
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| DOI： |
| 中文关键词: 水闸工程 闸墩 动力响应 损伤破坏 |
| 英文关键词: Sluice project Gate pier Dynamic response Damage |
| 基金项目: |
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| 摘要点击次数: 133 |
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| 中文摘要: |
| 水闸工程是我国河湖防洪体系中的重要组成部分，一旦破坏将会危害下游大坝及民众的生命财产安全。本文针对闸墩顶部的排架柱及机房等结构的动力响应问题，通过对比某水闸工程不同闸墩高度时的动力响应差异，探索闸墩高度对闸墩顶部结构动力响应的影响。研究成果表明：闸墩底部位置损伤将随着闸墩增高而逐渐减小，闸墩顶部排架柱底端损伤随着闸墩增高而逐渐增大；顶部机房在动力作用下易出现相对明显的鞭梢效应，位移远大于底部特征点；闸墩高度对底板动力响应的影响微小；启闭机梁变形结果受闸墩影响较大，位移随闸墩高度增加的幅度有限；顶部机房位移受排架柱破坏情况影响较大，且鞭梢效应明显。 |
| 英文摘要: |
| Sluice project is an important part of the flood control system of rivers and lakes in China. Once damaged，it will endanger the safety of downstream dams and people's lives and property. Aimed at the dynamic response of bent column and machine room at the top of gate pier，this paper explores the influence of gate pier height on the dynamic response of gate pier top structure by comparing the dynamic response differences of a certain sluice project at different pier heights. The research results show that the damage at the bottom of the gate pier will gradually decrease with the increase of the gate pier，and the damage at the bottom of the bent column at the top of the gate pier will gradually increase with the growth of the gate pier；The top machine room is prone to relatively obvious whiplash effect under dynamic action，and the displacement is much larger than the bottom characteristic point；The height of the pier has little effect on the dynamic response of the bottom plate；The deformation result of the hoist beam is greatly affected by the gate pier，and the displacement increases with the height of the gate pier to a limited extent；The displacement of the top machine room is greatly affected by the damage of bent column，and the whip effect is obvious. |
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