新型板架式钢平台设计及风——浪—流耦合作用下动力响应分析  

Design of a New Plate Frame Steel Type Patform and Its Dynamic Response Analysis Under Wind-Wave Current Coupling Effect

作　　者：蒋上 朱东 刘彦辉[3] 马凌 高湛 JIANG Shang;ZHU Dong;LIU Yanhui;MA Ling;GAO Zhan(China Power Offshore Energy Engineering and Technology Research Institute,Guangzhou 510000,China;Central Southern China Electric Power Design Institute,Wuhan 430071,China;Earthquake Engineering Research and Test Center,Guangzhou University,Guangzhou 510405,China)

机构地区：[1]中国电力工程顾问集团中电海洋能源工程技术研究院,广州510000 [2]中国电力工程顾问集团中南电力设计院有限公司,武汉430071 [3]广州大学工程抗震研究中心,广州510405

出　　处：《华南地震》2024年第4期151-158,共8页South China Journal of Seismology

基　　金：中国电力工程顾问集团有限公司科技项目“紧凑型轻量化海上风电送出换流站关键技术研究”(DG2-D06-2022)。

摘　　要：针对海上钢平台结构重量比大与空间利用率低等问题,提出一种新型板架式钢平台结构,并基于ANSYS软件建立一实际海上板架式钢平台结构三维有限元模型,模拟研究了其在风—浪—流耦合作用下的位移与加速度响应。分析结果表明:当波流入射角为90°,相位角为81°时,结构顶部位移最大;荷载入射角对结构位移与加速度影响显著,当荷载作用方向与结构弱轴向重合时,结构位移与加速度响应显著增大;板架式钢平台结构极端环境下的加速度响应能满足安全要求。研究对板架式钢平台结构的设计和动力分析有一定的参考意义。Due to fact the problem of large proportion by weight and low space utilization of offshore steel platform,a new plate frame type steel platform was proposed.The three-dimensional finite element model of plate frame type steel platform was established based on ANSYS finite element software,and the dynamic response law of displacement and acceleration of the platform under wind-wave-current coupling effect are simulated.The results show that the maximum displacement of the top of the structure is observed when the incidence angle of the wave is 90°and the phase angle is 81°.The incident angle of the load has a significant impact on the displacement and acceleration responses of the plate frame type steel platform.When the load direction aligns with the weak axis of the structure,the responses of the displacement and acceleration of the structure increase substantially.The research has certain reference significance for the design and dynamic analysis of plate frame type steel platform.

关 键 词：板架式钢平台 风荷载 波浪荷载 耦合作用 

分 类 号：TU311.2[建筑科学—结构工程]