| 典型海上升压站地震储备承载系数研究 |
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| 引用本文： | 孙震洲,金伟良,方 滔,俞华锋.典型海上升压站地震储备承载系数研究[J].海洋工程,2019,37(3):95-101. |
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| 作者姓名： | 孙震洲 金伟良 方 滔 俞华锋 |
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| 作者单位： | 中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122;
浙江大学 建筑工程学院,浙江 杭州 310058,浙江大学 建筑工程学院,浙江 杭州 310058,中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122;,中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122; |
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| 基金项目： | 中国电建集团华东勘测设计研究院有限公司科技立项(KY2018-XNY-09) |
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| 摘 要： | 海上升压站是海上风电场中不可或缺的组成部分,其结构型式与传统的海上油气平台有所差异,完全套用现有抗震分析方法可能使结构设计不经济。由于地质条件特点不同,国外海上风电场鲜有位于高地震烈度区的案例,因此当前有关海上升压站抗震设计的理论和经验也不充分。针对我国首个位于高地震烈度区内的海上升压站,建立精细化有限元模型,利用非线性静力推覆分析方法,并结合敏感性分析结果与工程实际情况给出其地震储备承载系数的合理化取值,为今后典型海上升压站的抗震设计提供参考与借鉴。
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| 关 键 词： | 海上升压站 抗震设计 推覆分析 储备承载系数 |
On the seismic reserve capacity factor of typical offshore substation |
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| SUN Zhenzhou,JIN Weiliang,FANG Tao and YU Huafeng.On the seismic reserve capacity factor of typical offshore substation[J].Ocean Engineering,2019,37(3):95-101. |
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| Authors: | SUN Zhenzhou JIN Weiliang FANG Tao and YU Huafeng |
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| Institution: | Power China Huadong Engineering Corporation, Hangzhou 311122, China;
Department of Civil Engineering, Zhejiang University, Hangzhou 3100058, China,Department of Civil Engineering, Zhejiang University, Hangzhou 3100058, China,Power China Huadong Engineering Corporation, Hangzhou 311122, China and Power China Huadong Engineering Corporation, Hangzhou 311122, China |
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| Abstract: | Offshore substation is an integral part of offshore wind farms, and its structure is different from traditional offshore oil and gas platforms. It could be uneconomical to completely apply the existing seismic analysis methods. Few cases of offshore wind farms located in high seismic intensity areas were reported aboard as a result of the different geological conditions. Therefore, theories and experiences of seismic design for offshore substations are insufficient so far. A detailed finite-element model of the first offshore substation located in the high earthquake intensity area in China was established, and the nonlinear static pushover analysis method was conducted. Based on this, the reasonable value of the seismic ductility reserve factor is given in combination with the result of sensitivity analysis and the actual design situation of the project, which could provide reference for the seismic design of typical offshore substations in the future. |
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| Keywords: | offshore substation seismic design push-over analysis reserve capacity factor |
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