海上旅游平台大跨度网壳结构强度分析  

Strength analysis method of large-span reticulated shell structures for offshore tourism platforms

作　　者：方春 岳亚霖[1] 韦朋余[1] 张亦龙[1] 戴泽宇 杨伟楠 张欣玉 FANG Chun;YUE Ya-lin;WEI Peng-yu;ZHANG Yi-long;DAI Ze-yu;YANG Wei-nan;ZHANG Xin-yu(China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶力学》2024年第2期250-260,共11页Journal of Ship Mechanics

摘　　要：海上旅游平台大跨度网壳结构作为新型结构,目前还没有成熟的设计和强度分析方法。本文以网壳结构立柱间的相对位移为波浪载荷控制参数,基于设计波法和三维水弹性理论计算波浪载荷;以百年一遇的风速作为风载工况,采用k-ε湍流模型模拟风场计算风载荷,利用面元积分法计算网壳结构等效节点载荷,建立大跨度网壳结构外载荷计算方法。在此基础上,以“海洋之心”旅游平台为算例,开展了网壳结构响应分析,获得了风载荷、波浪载荷及风浪联合作用下的网壳结构响应,对比分析了风载荷和波浪载荷对网壳结构响应的影响。As a new type of structure,there is no mature design and strength analysis method for large-span reticulated shell structures of offshore tourism platforms.In this paper,the relative vertical displacement of the reticulated shell structure column was taken as the wave load control condition,and the wave load was calculated based on the design wave method and the three-dimensional hydroelastic theory.With the once in-a-century wind speed taken as the wind load working condition,the turbulence model of k-εwas adopted to simulate the wind field for calculation of the wind load,the panel integration method was used to calculate the equivalent node load of the reticulated shell structure,and the calculation method of the external load for large-span shell structures was thus established.On this basis,taking the“Heart of the Sea”tourism plat⁃form as an example,the response analysis of the reticulated shell structure was carried out,and the responses of the reticulated shell structure under the action of wind load,wave load and combined loads of both were ob⁃tained.The effects of wind load and wave load on the response of the reticulated shell structure were com⁃pared and analyzed.

关 键 词：海上旅游平台 大跨度网壳结构 风载荷 波浪载荷 结构强度 

分 类 号：U661.4[交通运输工程—船舶及航道工程]