Analysis of wind-induced vibration response characteristics of multispan double-layer cable photovoltaic support structure  

多跨间双层索系光伏支架结构风振响应特性分析

作　　者：ZOU Lianghao WANG Jian SONG Jie ZHOU Rui WANG Hao 邹良浩;王健;宋杰;周锐;王浩(武汉大学土木建筑工程学院,武汉430072;东南大学混凝土及预应力混凝土结构教育部重点实验室,南京211189)

机构地区：[1]School of Civil Engineering,Wuhan University,Wuhan 430072,China [2]Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education,Southeast University,Nanjing 211189,China

出　　处：《Journal of Southeast University(English Edition)》2025年第1期37-43,共7页东南大学学报(英文版)

基　　金：The National Natural Science Foundation of China(No.52338011).

摘　　要：To investigate the wind⁃induced vibration re⁃sponse characteristics of multispan double⁃layer cable photo⁃voltaic(PV)support structures,wind tunnel tests using an aeroelastic model were carried out to obtain the wind⁃induced vibration response data of a three⁃span four⁃row double⁃layer cable PV support system.The wind⁃induced vibration characteristics with different PV module tilt angles,wind speeds,and wind direction angles were analyzed.The results showed that the double⁃layer cable large⁃span flexible PV support can effectively control the wind⁃induced vibration response and prevent the occur⁃rence of flutter under strong wind conditions.The maxi⁃mum value of the wind⁃induced vibration displacement of the flexible PV support system occurs in the windward first row.The upstream module has a significant shading effect on the downstream module,with a maximum effect of 23%.The most unfavorable wind direction angles of the structure are 0°and 180°.The change of the wind direction angle in the range of 0°to 30°has little effect on the wind vi⁃bration response.The change in the tilt angle of the PV modules has a greater impact on the wind vibration in the downwind direction and a smaller impact in the upwind di⁃rection.Special attention should be paid to the structural wind⁃resistant design of such systems in the upwind side span.为探究多跨间双层索系光伏支架结构的风致振动响应特性,采用气动弹性模型风洞试验,得到三跨四排双层索系柔性光伏支架系统的风致响应数据,并分析了不同光伏组件倾角、风速和风向角下的风致振动特性。结果表明,双层索系大跨度柔性光伏支架在强风下能有效控制风致振动响应,预防颤振现象的发生。柔性光伏支架系统的风致振动位移最大值出现在迎风首排。上游组件对下游组件存在显著的遮挡效果,其效果最大可达23%。结构最不利风向角为0°和180°,在0°~30°范围内风向角的变化对风振响应影响不大。光伏组件倾角的变化对顺风向风致振动影响较大,对逆风向影响较小。结构设计时,应特别关注逆风向侧跨的结构抗风设计。

关 键 词：double⁃layer cable photovoltaic support aero⁃elastic model wind tunnel test wind⁃induced vibration re⁃sponse 

分 类 号：TU399[建筑科学—结构工程]