带稳定索的大跨度柔性光伏支架风振反应对比分析

A comparative analysis of wind vibration response of large-span flexible photovoltaic support with stabilizing cable

采用SAP2000有限元分析软件针对大跨度柔性光伏支架进行建模分析,为考察柔性支架在施加稳定索后的风振反应,分别采用单节点稳定索和三节点稳定索对整体结构进行分析,结果表明:采用单节点稳定索的柔性支架对周期的控制较好;而对支架中心的位移控制方面,三节点稳定索结构对下弦Z向的位移控制效果较好,单节点稳定索结构对下弦X向、上弦X向及Z向的位移控制效果较好;对支架1/4位置处的节点位移分析表明,单节点稳定索结构对上弦X向及Z向的位移控制效果较好,三节点稳定索结构对下弦Z向的位移控制效果较好,单节点和三节点稳定索结构对下弦X向位移控制效果接近。

The SAP2000 finite element analysis software is used to model and analyze the large-span flexible photovoltaic support.In order to investigate the wind vibration response of the flexible support after applying the stabilizer cable,this paper uses the single-node stabilizer cable and the three-node stabilizer cable are used to analyze the overall structure.The results show that the flexible support with single-node stabilizing cable has a better control of the period.ln terms of the displacement control of the center of the support,the three-node stabilizing cable structure has a better effect on the displacement control of the Z direction of the lower chord,and the single-node stabilizing cable structure has a better control effect on the X direction of the lower chord.The displacement control effect of the X and Z directions of the upper chord is better.An analysis of the node displacement at the 1/4 position of the bracket shows that the single-node stable cable structure has a better control effect on the displacement of the upper chord X and Z directions,and the three-node stable cable The control effect of the structure on the Z-direction displacement of the lower chord is better,and the control effect of the singlenode and three-node stable cable structures on the displacement of the lower chord in the X-direction is similar.