拉索预应力对光伏柔性支架风振响应研究  

Study on Wind Vibration Response of Cable Prestress to Photovoltaic Flexible Support

作　　者：周兴乐 林凡伟 丁伟亮 郑芝鹏 ZHOU Xing-le;LIN Fan-wei;DING Wei-liang;ZHENG Zhi-peng(Central Southern China Electric Power Design Institute Co Ltd,Wuhan 430071,China;Hubei Key Laboratory of Roadway Bridge&Structure Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,武汉430071 [2]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070

出　　处：《建材世界》2024年第3期102-105,共4页The World of Building Materials

摘　　要：为丰富大跨度光伏柔性支架风振特性研究,以某三跨四排大跨柔性光伏支架为例,通过SAP2000有限元模拟的方式,对结构模态进行分析,并研究敏感性参数对结构风致振动影响,结果表明:模态以竖向振动为主,到第三节才出现扭转变形;承重索预应力对结构动力响应有着明显影响。随着承重索预应力的增大,位移风振系数、索力风振系数逐渐增大。基于以上分析,总结承重索预应力对大跨度光伏柔性支架风振响应的影响。In order to enrich the research on wind-induced vibration characteristics of long-span photovoltaic flexible bracket,a three-span four-row long-span photovoltaic bracket is taken as an example.With the increase of prestress,the wind vibration coefficients of displacement and cable force increase gradually,and the prestress mainly affects the deflection of the structure.Based on above analysis,the influencing factors of the wind-induced vibration of the long-span photovoltaic flexible bracket are summarized.

关 键 词：大跨度 柔性光伏 风致振动 

分 类 号：TM615[电气工程—电力系统及自动化] TU312.1[建筑科学—结构工程]