| 水体与塔楼耦合作用对升船机上部机房的动力影响 |
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| 引用本文： | 郑人逢,宫必宁,宋奎.水体与塔楼耦合作用对升船机上部机房的动力影响[J].水电能源科学,2009,27(5). |
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| 作者姓名： | 郑人逢 宫必宁 宋奎 |
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| 作者单位： | 1. 河海大学,土木工程学院,江苏,南京,210098
2. 河海大学,水利水电工程学院,江苏,南京,210098 |
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| 摘 要： | 通过景洪水电站水力式升船机塔楼、机房1/50结构模型振动台试验,获得了塔楼、机房结构的动力特性和对输入地震波的动力响应,发现上部机房结构产生明显的鞭梢效应与扭转效应。通过对比试验分析了竖井内水体与塔楼耦合作用可使上部机房结构的自振频率下降、主机房结构在地震波激励下的动力响应减弱,表明竖井内水体与塔楼的耦合作用在一定条件下具有消能减震的作用。研究结果可为深入研究上部主机房鞭梢效应与扭转效应提供依据。
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| 关 键 词： | 水力式升船机 振动台模型试验 水平动力响应 鞭梢效应 扭转效应 |
Dynamic Effect on Upper Part of Tower Engine Room for Ship Lift Caused by Water Coupling with Tower |
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| ZHENG Renfeng GONG Bining SONG Kui.Dynamic Effect on Upper Part of Tower Engine Room for Ship Lift Caused by Water Coupling with Tower[J].International Journal Hydroelectric Energy,2009,27(5). |
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| Authors: | ZHENG Renfeng GONG Bining SONG Kui |
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| Affiliation: | 1.College of Civil Engineering;Hohai University;Nanjing 210098;China;2.The College of Water Conservancy and Hydropower Engineering;China |
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| Abstract: | Based on the shaking table model test of the ship lift tower and engine room 1/50,dynamic characteristics and dynamic response of the structure are obtained.Significant whiplash effect and torsion effect are found out by comparing the result of the test,analyzing the effect of the engine room generated by the interaction of the vertical structure within the water body due to the interaction,the structure's natural frequency declines,dynamic effect of the host engine room inspired by the seismic waves is wea... |
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| Keywords: | hydraulic ship lift tower shaking table model test horizontal dynamic response whiplash effect torsion effect |
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