三峡升船机塔柱结构抗震试验研究
|
摘要
通过在大型三向六自由度振动台进行三峡升船机塔在结构的抗震试验，并辅以动力计算分析研究，确定了升船机塔柱结构的固有频率、振型及阻尼比等动力特性，得到了升船机塔柱结构沿主轴方向的设计地震作用下的动力反应，按《水工建筑物抗震设计规范》的要求，评价三峡升船机塔柱结构的抗震安全性，对影响机房设备安全运行的各塔柱顶部最大地震相对位移进行论证。
By dynamic test on an advanced large shaking table and three dimensional finite ele-ment calculation for shiplifter tower structure of the Three Gorge project, not only the dynam-ic characteristics of shiplifter tower structure, such as natural frequency, vibration shape anddamping ratio, but aIso the seismic responses of shiplifter tower structure to the designearthquake have been investigated. Based on the revised edition of " Specifications for SeismicDesign of Hydraulic Structures" in China, the seismic safety of the shiplifter tower structure ofthe Three Gorge project and the maximum earthquake relative displacement of the towers whichinfluence the operation of engine room are evaluated.
By dynamic test on an advanced large shaking table and three dimensional finite ele-ment calculation for shiplifter tower structure of the Three Gorge project, not only the dynam-ic characteristics of shiplifter tower structure, such as natural frequency, vibration shape anddamping ratio, but aIso the seismic responses of shiplifter tower structure to the designearthquake have been investigated. Based on the revised edition of " Specifications for SeismicDesign of Hydraulic Structures" in China, the seismic safety of the shiplifter tower structure ofthe Three Gorge project and the maximum earthquake relative displacement of the towers whichinfluence the operation of engine room are evaluated.
引文
1水工建筑物抗震设计规范(DL5073-1997),中国电力出版社,1997
2陈厚群,胡晓等。清江隔河岩工程第二级垂直升船机塔柱结构抗震试验研究报告。中国水利水电科学研究院研 究报告
3胡晓,祁建华。混凝土重力坝几种动力试验研究及模态参数识别.世界地震工程,1991(3)
2陈厚群,胡晓等。清江隔河岩工程第二级垂直升船机塔柱结构抗震试验研究报告。中国水利水电科学研究院研 究报告
3胡晓,祁建华。混凝土重力坝几种动力试验研究及模态参数识别.世界地震工程,1991(3)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心