风揭荷载作用下光伏与压型钢板一体化屋面支座节点的抗拔承载力与设计方法

吴函恒; 邢梓瑄; 王涛; 周聪; 王力

doi:10.19912/j.0254-0096.tynxb.2024-0707

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (8) : 7-17. DOI: 10.19912/j.0254-0096.tynxb.2024-0707

风揭荷载作用下光伏与压型钢板一体化屋面支座节点的抗拔承载力与设计方法

吴函恒¹, 邢梓瑄¹, 王涛¹, 周聪², 王力²

作者信息 +

UPLIFT BEARING CAPACITY AND DESIGN APPROACHES OF CLIP CONNECTIONS JOINTS IN PROFILED STEEL SHEET ROOF INTEGRATED SOLAR ARRAYS UNDER WIND LOADS

Wu Hanheng¹, Xing Zixuan¹, Wang Tao¹, Zhou Cong², Wang Li²

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文章历史 +

摘要

为研究风揭荷载作用下光伏与压型钢板一体化屋面支座连接系统的抗拔承载能力与设计方法,设计支座单节点的加载装置,并通过静力拉伸试验得到支座节点的破坏模式、承载能力以及荷载位移曲线,暗扣支座的抗拔承载力为锁边支座承载力的1.96倍;通过真空吸盘加载,开展“光伏组件-压型钢板-支座系统-檩条”子结构模型足尺试件的抗拔试验,揭示子结构模型的失效机制,分析支座节点承担拉力的分布规律,表明支座节点的拉力分布呈非均匀状态,不均匀系数在1.22~1.31之间;采用结构有限分析软件ABAQUS建立光伏与压型钢板一体化屋面的数值分析模型,进一步研究支座节点承担拉力的分布规律,结合试验与数值模拟分析结果,建议不均匀系数取为1.3;基于容许应力法,提出光伏与压型钢板一体化屋面支座节点的设计方法。

Abstract

In order to study the uplift bearing capacity and design approaches under the uplift wind pressure of the clip connections of the profiled steel sheet roofs integrated solar arrays, the clip loading device is designed in this paper. Static tensile tests are performed to obtain the failure mode, bearing capacity and load-displacement curves of the clip connections. The pulling capacity of the button clips is 1.96 times that of the seam clips. The substructure model uplift tests of photovoltaic module-profiled steel sheet-clip connections-purlins loading by vacuum suckers is conducted to reveal the failure mode of substructure and analyze the tensile forces of clips and their distributions. It is found that the distribution of clip tension is in a non-uniform state, with the non-uniformity coefficient ranging from 1.22 to 1.31. A numerical analysis model for the profiled steel sheet roof integrated solar arrays is established using the structural finite element analysis software ABAQUS. The distribution of clips tension is investigated further. Combine the results of experiments and numerical simulation analysis, it is recommended that the non-uniformity coefficient is taken as 1.3. Referring to allowable stress method, the design approach of the clip connections of the profiled steel sheet roof integrated solar arrays has been proposed.

导出引用

吴函恒, 邢梓瑄, 王涛, 周聪, 王力. 风揭荷载作用下光伏与压型钢板一体化屋面支座节点的抗拔承载力与设计方法[J]. 太阳能学报. 2025, 46(8): 7-17 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0707

Wu Hanheng, Xing Zixuan, Wang Tao, Zhou Cong, Wang Li. UPLIFT BEARING CAPACITY AND DESIGN APPROACHES OF CLIP CONNECTIONS JOINTS IN PROFILED STEEL SHEET ROOF INTEGRATED SOLAR ARRAYS UNDER WIND LOADS[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 7-17 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0707

中图分类号： TU391

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